Java Engineer (Workflow Specialist)

🏢 Summary: Senior/Mid Workflow Specialist role focused on translating complex rule-based automation from legacy systems into a modern workflow engine within a large-scale migration programme. The position involves designing and building a migration toolkit from scratch, reverse-engineering business logic, and shaping workflow architecture. Offered on a B2B contract with remote or on-site options. 🗂️ Requirements: 5+ years experience in workflow automation or rule-based systems, Strong Java and JVM ecosystem skills, Experience designing or implementing workflow engines or BPM platforms, Ability to read and interpret Smalltalk code at functional level, Experience analysing and translating complex rule-based logic, Ability to reverse-engineer undocumented business rules, Fluent English (written and spoken), Active use of AI-assisted development tools 📃 Skills: Java, JVM, Smalltalk, BPM, Workflow, RuleEngines, Automation, AI, ChatGPT, Claude, Copilot 🏢 Description: The Role As a Workflow Specialist , you will be a core execution member of the dedicated migration squad. This is the most specialised and highest-leverage role in the migration programme. This role requires a rare combination: deep understanding of rule-based automation systems on the source side (including strong domain knowledge), and the ability to translate those patterns into a modern workflow engine on the target side. IN SHORT: 🌍 Remote work or on-site (Wrocław, Bielsko-Biała) – your choice! 💰 Senior 140 - 170 PLN/h + VAT Middle 120 - 140 PLN/h + VAT ☑️ B2B contract What You'll Get: The highest impact , most technically interesting role in the migration programme Genuine ownership : you will design, build, and operate a toolkit from scratch, with direct input into architecture decisions Long-term engagement : as the migrations scale, the Workflow Specialist role grows into a subject matter authority position with influence over tooling strategy and AI acceleration High visibility within the programme: the toolkit you build is on the critical path, and its outcomes are tracked programme-wide at every phase gate - your contribution is never invisible. Experience and Technical Skills 5+ years of experience in workflow automation , business rules engines , or process automation - with a proven track record of analysing and translating complex rule-based logic Solid Java and JVM language skills (Java 21 ecosystem preferred); ability to read, debug, and extend existing codes (migration modules) Experience designing and/or implementing workflow engines , BPM platforms, or rule engines - including multi-step sequences, conditional branching, event-driven triggers, and external system integration Ability to read and interpret Smalltalk code or rule definitions at a functional level - you do not need to be a Smalltalk developer, but you must be able to reverse-engineer business logic from unfamiliar syntax Rapid domain understanding: ability to quickly absorb unfamiliar, regulated business domains Strong analytical skills : ability to reverse-engineer undocumented business rules, infer intent from runtime behaviour, and identify semantic equivalences across different automation paradigm. Experience working with domain experts and subject matter experts (legal, financial, operations) to validate that technical implementations match business requirements - especially in regulated or legally sensitive contexts Fluent English (written and spoken); ability to produce clear technical documentation and communicate complex workflow semantics to both engineers and business stakeholders Active use of AI-assisted tools (e.g. ChatGPT, Claude, GitHub Copilot or similar) as part of daily development and problem-solving workflow - we expect AI tools to be a natural part of how you work Nice to haves: Direct experience with Cincom ObjectStudio or any Smalltalk-based system. Background in debt management , collections , accounts receivable , or financial services - understanding of dunning processes, instalment plans, court filing procedures, and interest calculation rules significantly reduces ramp-up time. Experience building code parsers , AST processors , or rule translators (even in other domains). Familiarity with AI/ML-assisted automation : pattern clustering, rule classification, skeleton generation from labelled examples. Experience in a migration context , particularly translating legacy automation to modern platforms. German language skills (B2+). Reasons Why You Would Enjoy Working With Us We work in the latest technologies and with international clients, and our projects are polished from < to /> - learn about some of the projects we have completed. We organize TechTalks, meet-ups and create guilds where we exchange knowledge - you can learn a lot from your teammates. We have a close-knit team and we make sure to have regular integrations - we often go out to celebrate together. You can work remotely or choose to work from our offices in Wroclaw or Bielsko-Biala. However, we count on your openness to occasionally visit the office for team meetings or client visits, or possible occasional trips to the client's headquarters. You can adjust your working hours to suit your needs, starting your day between 7:00 and 10:00 am. You can work with great specialists in their fields who also have a sense of humor and other after-hours hobbies. It is the people who create the unique atmosphere and relaxed atmosphere at CSHARK. We have a flat structure - we are not a corporation and don't want to be one 🙃. We offer bonuses for employee referrals (from 3000 PLN to 7000 PLN). We organize remote English classes and provide access to the company library. You can also become an author/author of articles published on our technical blog - https://cshark.com/blog/ .

🏢 Summary: The Workflow Specialist supports the design, configuration, and optimization of workflow-enabled business processes within the Navy ERP+ environment. The role focuses on SAP workflow technologies, business process automation, and compliance with Navy and DoD governance standards. This position requires an active DoD Secret clearance and experience delivering enterprise workflow solutions in mission-critical environments. 🗂️ Requirements: Active DoD security clearance with T5 investigation, Bachelor’s degree in Business, Information Systems, Computer Science, Engineering, or related field (or equivalent experience), 5+ years of experience in workflow design, business process automation, or enterprise BPM solutions, Experience with SAP workflow technologies or comparable enterprise workflow platforms, Experience gathering and translating business requirements into workflow solutions, Strong knowledge of business process analysis and improvement methodologies, Experience supporting enterprise applications in production environments 📃 Skills: SAP, S4HANA, Workflow, Fiori, BPM, ERP, ProcessModeling, BusinessProcessAutomation, NavyERP, DoD 🏢 Description: Note: This position is contingent upon contract award. Applicants must be a U.S. Citizen with an active Secret clearance for this role. Position Summary: The Workflow Specialist is responsible for the design, configuration, analysis, support, and continuous improvement of workflow-enabled business processes within the Navy ERP+ environment. This role works closely with business stakeholders, functional consultants, developers, and technical teams to ensure workflow solutions support mission requirements, improve operational efficiency, and maintain compliance with Navy and DoD business processes. The Workflow Specialist supports both sustainment and modernization initiatives by analyzing business processes, identifying automation opportunities, configuring workflow solutions, and ensuring workflow functionality aligns with enterprise architecture and governance standards. The position serves as a subject matter expert for workflow design, routing, approvals, notifications, and business process automation across Navy ERP+. Primary Duties and Responsibilities: Workflow Analysis and Design - Analyze business processes and identify opportunities to automate, streamline, and improve workflow execution. - Gather and document workflow requirements from business stakeholders, functional teams, and program leadership. - Design workflow solutions that support operational, financial, logistics, acquisition, and personnel processes within Navy ERP+. - Develop workflow process maps, business rules, routing logic, approval chains, and exception handling procedures. Workflow Configuration and Administration - Configure, maintain, and support workflow functionality within SAP and related enterprise applications. - Create and maintain workflow templates, approval structures, task assignments, notifications, and escalation processes. - Support organizational structure alignment and workflow routing based on business requirements. - Monitor workflow performance and ensure proper execution of automated business processes. Business Process Improvement - Evaluate existing workflows and recommend enhancements to improve efficiency, accountability, and user experience. - Identify process bottlenecks and implement workflow solutions to reduce manual effort and improve processing times. - Support modernization initiatives involving process automation, digital workflows, and enterprise transformation efforts. - Assist with implementation of best practices for workflow governance and process standardization. Testing and Deployment Support - Develop workflow test scenarios and support unit, integration, and user acceptance testing activities. - Validate workflow functionality and ensure business requirements are met prior to deployment. - Support release management activities and transition workflow enhancements into production environments. - Assist with issue resolution during deployments and post-implementation support periods. User Support and Training - Provide workflow-related support for incidents, service requests, and user inquiries. - Develop user guides, process documentation, and training materials. - Conduct training sessions and knowledge transfer activities for users and support teams. - Support change management activities associated with workflow implementations and enhancements. Governance and Compliance - Ensure workflow solutions comply with Navy ERP+, DoD, and organizational governance requirements. - Support audit activities by providing workflow documentation, approval histories, and process traceability. - Maintain workflow documentation and configuration records. - Ensure workflow designs align with security, segregation of duties, and internal control requirements. Cross-Functional Collaboration - Collaborate with functional teams supporting Finance, Supply Chain, Logistics, Procurement, Human Resources, and other business domains. - Work closely with developers, Basis administrators, security teams, and integration teams to support workflow-enabled solutions. - Participate in modernization efforts involving SAP S/4HANA, Fiori, business process automation, and enterprise transformation initiatives. Required Qualifications: - Active DoD security clearance with T5 investigation. - Bachelor's degree in Business, Information Systems, Computer Science, Engineering, or related field (or equivalent experience). - 5+ years of experience supporting workflow design, business process automation, or enterprise business process management solutions. - Experience working with SAP workflow technologies or comparable enterprise workflow platforms. - Experience gathering business requirements and translating them into workflow solutions. - Strong understanding of business process analysis and process improvement methodologies. - Experience supporting enterprise applications in production environments. - Strong analytical, problem-solving, and communication skills. Desired/Preferred Qualifications - Experience supporting SAP ERP, SAP S/4HANA, SAP Business Workflow, SAP Fiori Workflow, or SAP Business Process Management solutions. - Experience supporting Navy ERP, Navy ERP+, or other DoD enterprise systems. - Familiarity with logistics, supply chain, finance, acquisition, or human resource business processes. - Experience with process modeling tools and workflow visualization techniques. - Experience supporting modernization and digital transformation initiatives. Benefits: C5MI offers a market competitive suite of benefits including medical, dental, vision, life, and long-term disability coverage, a 401(k) plan, bonus opportunities, paid holidays, and paid time off.

🏢 Summary: Senior Software Engineer role focused on designing and building AI-powered backend systems that automate healthcare operations while supporting human workflows. The position involves hands-on system architecture, workflow orchestration, distributed systems, and AI process automation in a regulated environment. Remote-first work with required overlap with US Central Time. 🗂️ Requirements: 6+ years of experience building and maintaining production software systems, Strong experience designing and owning complex backend systems, Strong backend engineering skills, Experience with asynchronous, event-driven, or workflow-based distributed systems, Ability to work with 4–5 hour daily overlap with US team, Experience with AI or LLM-based systems and process automation, Strong spoken and written English communication skills, Ability to solve unclear problems with incomplete information, Self-motivated with strong ownership and responsibility 📃 Skills: TypeScript, Node.js, AI, LLM, Claude, Backend, APIs, HIPAA 🏢 Description: Please Note: Overlap with Central US Time required (until 20-21:00 CEST) We are a health technology company that helps older people and their families apply for important eldercare benefits, including Medicaid, Medicare, and VA programs. We work with healthcare, government systems, and people’s daily lives, so accuracy, reliability, and trust are very important. As the number of patients grows from hundreds to thousands, manual work is no longer enough. We are building AI-powered systems to automate routine tasks while keeping people involved for quality checks, difficult cases, and patient safety. Our goal is to make healthcare operations more scalable without losing the human connection. The Role We are looking for a Senior Software Engineer to lead the design and development of systems that combine AI automation with human workflows. This is an important role close to the core business. It is a fully hands-on position with no management duties or direct reports. You will not only build features, but also design systems, define best practices, and guide technical decisions as we grow. You should feel comfortable solving unclear problems, working closely with operations and product teams, and making smart decisions in a regulated environment. This role is a good fit for someone who enjoys system design, building reliable infrastructure, and taking ownership of their work. What You’ll Work On Designing workflow and orchestration systems for complex operations. Creating AI automations that handle routine tasks safely and send difficult cases to humans. Building systems where AI supports human work before, during, and after tasks. Managing long-running workflows that can last days or weeks. Connecting with external systems such as EVV platforms, insurers, government portals, and older messaging tools. Designing confidence scoring, auditing, and rollback systems for AI processes. Improving system reliability, monitoring, and error handling in production. Responsibilities Lead the technical design and development of scalable backend systems. Make and document architecture decisions with clear trade-offs. Create patterns for collaboration between AI systems and human workers. Work closely with operations teams to understand real-world issues and edge cases. Make sure systems are observable, auditable, and safe to run at scale. Identify technical risks early and suggest solutions. Maintain high standards for code quality, testing, and system design. Share knowledge and help improve the team’s technical standards through reviews and collaboration. What We’re Looking For Required 6+ years of experience building and maintaining production software systems. Strong experience designing and owning complex backend systems. Strong backend engineering skills (we use TypeScript and Node.js, but other languages are welcome). Experience with asynchronous, event-driven, or workflow-based distributed systems. Ability to work with a daily 4–5 hour overlap with the US team (until 20:00 or 21:00 Polish time). Comfortable working with unclear problems and incomplete information. Strong spoken and written English communication skills. Self-motivated with a strong sense of ownership and responsibility. Experience working with AI or LLM-based systems and process automation, such as using Anthropic’s API (Claude) or similar tools in business workflows. Nice to Have Experience in healthtech or other regulated industries. Knowledge of HIPAA and healthcare data privacy and security rules. Experience building systems with strict compliance or audit requirements. Experience with human review workflows. Experience integrating with unstable or legacy third-party APIs. Master’s or PhD in Computer Science, Engineering, or a related field. How We Work Remote-first company. Small, experienced teams with high trust and independence. Strong focus on system accuracy, reliability, and long-term maintenance. Practical and thoughtful use of AI, both for internal development and within our product. Direct connection to real users and operational impact.

🏢 Summary: Senior Software Engineer role focused on designing and building scalable backend systems that combine AI automation with human workflows in a regulated healthtech environment. The position involves hands-on system design, workflow orchestration, and development of reliable, auditable AI-powered processes integrated with external platforms. The engineer will lead technical decisions and ensure production-grade reliability, safety, and scalability. 🗂️ Requirements: 6+ years building and maintaining production software systems, Strong experience designing and owning complex backend systems, Strong backend engineering experience, Experience with asynchronous or event-driven distributed systems, Experience with workflow-based systems, Experience integrating AI or LLM-based systems into business workflows, Ability to design scalable, reliable, and auditable systems, Experience working with external or legacy APIs, Ability to overlap 4–5 hours with US time zone, Strong English communication skills 📃 Skills: TypeScript, Node.js, AI, LLM, Anthropic, Claude, APIs, DistributedSystems, EventDriven, Workflows, Backend, Architecture, Monitoring, Testing 🏢 Description: Please Note: Overlap with Central US Time required (until 20-21:00 CEST) We are a health technology company that helps older people and their families apply for important eldercare benefits, including Medicaid, Medicare, and VA programs. We work with healthcare, government systems, and people’s daily lives, so accuracy, reliability, and trust are very important. As the number of patients grows from hundreds to thousands, manual work is no longer enough. We are building AI-powered systems to automate routine tasks while keeping people involved for quality checks, difficult cases, and patient safety. Our goal is to make healthcare operations more scalable without losing the human connection. The Role We are looking for a Senior Software Engineer to lead the design and development of systems that combine AI automation with human workflows. This is an important role close to the core business. It is a fully hands-on position with no management duties or direct reports. You will not only build features, but also design systems, define best practices, and guide technical decisions as we grow. You should feel comfortable solving unclear problems, working closely with operations and product teams, and making smart decisions in a regulated environment. This role is a good fit for someone who enjoys system design, building reliable infrastructure, and taking ownership of their work. What You’ll Work On Designing workflow and orchestration systems for complex operations. Creating AI automations that handle routine tasks safely and send difficult cases to humans. Building systems where AI supports human work before, during, and after tasks. Managing long-running workflows that can last days or weeks. Connecting with external systems such as EVV platforms, insurers, government portals, and older messaging tools. Designing confidence scoring, auditing, and rollback systems for AI processes. Improving system reliability, monitoring, and error handling in production. Responsibilities Lead the technical design and development of scalable backend systems. Make and document architecture decisions with clear trade-offs. Create patterns for collaboration between AI systems and human workers. Work closely with operations teams to understand real-world issues and edge cases. Make sure systems are observable, auditable, and safe to run at scale. Identify technical risks early and suggest solutions. Maintain high standards for code quality, testing, and system design. Share knowledge and help improve the team’s technical standards through reviews and collaboration. What We’re Looking For Required 6+ years of experience building and maintaining production software systems. Strong experience designing and owning complex backend systems. Strong backend engineering skills (we use TypeScript and Node.js, but other languages are welcome). Experience with asynchronous, event-driven, or workflow-based distributed systems. Ability to work with a daily 4–5 hour overlap with the US team (until 20:00 or 21:00 Polish time). Comfortable working with unclear problems and incomplete information. Strong spoken and written English communication skills. Self-motivated with a strong sense of ownership and responsibility. Experience working with AI or LLM-based systems and process automation, such as using Anthropic’s API (Claude) or similar tools in business workflows. Nice to Have Experience in healthtech or other regulated industries. Knowledge of HIPAA and healthcare data privacy and security rules. Experience building systems with strict compliance or audit requirements. Experience with human review workflows. Experience integrating with unstable or legacy third-party APIs. Master’s or PhD in Computer Science, Engineering, or a related field. How We Work Remote-first company. Small, experienced teams with high trust and independence. Strong focus on system accuracy, reliability, and long-term maintenance. Practical and thoughtful use of AI, both for internal development and within our product. Direct connection to real users and operational impact.

🏢 Summary: Remote Workflow Engineer role focused on designing and implementing production-ready AI workflow orchestration for large-scale customer service automation in the logistics domain. The position involves integrating systems, applying business logic and SOPs, and building reliable data transformations to support automated email handling at global scale. The engineer will collaborate with cross-functional teams to deliver accurate and consistent AI-driven responses. 🗂️ Requirements: Strong programming skills in Java, Scala, or Kotlin, Proficiency in SQL including complex queries and data modeling, Experience with APIs and event-driven architectures, Experience with Kafka or similar event streaming platforms, Ability to design end-to-end AI workflow orchestration, Experience building unit tests, Ability to debug complex data issues end-to-end, Very good English (B2/C1) 📃 Skills: Java, Scala, Kotlin, SQL, Kafka, APIs, JVM, ETL, UnitTesting, EventDrivenArchitecture 🏢 Description: About the Project As a Workflow Engineer , you will be responsible for turning prioritized customer-service scenarios into reliable, production-ready AI workflows . You will design and implement end-to-end orchestration, ensuring that the logic, SOPs, and system integrations result in accurate, consistent AI responses. Our Customer ( logistics industry ), handles approximately 20 million customer queries via email annually across 200+ distinct business scenarios. They are now entering a massive scale-up phase, aiming to automate ~15% of the annual global email volume. Work Mode: remote Start Date: 01.08.2026 Job Responsibilities Designing and implementing end-to-end AI workflow orchestration Integrating data and systems using APIs and event streams (e.g., Kafka) Applying scenario logic and Standard Operating Procedures (SOPs) into the automated flow Developing SQL-based transformations and robust data models Building maintainable and testable code in Java, Scala, or Kotlin Collaborating closely with Data Scientists, ML Engineers, and Business Stakeholders Expectations Strong programming skills in JVM-based languages: Java, Scala, or Kotlin Proficiency in SQL , including data modeling, complex queries, and transformations Experience in system integrations (APIs, Kafka, event-driven architecture) Solid coding practices , including a strong emphasis on unit testing Analytical mindset with the ability to debug complex data issues end-to-end Excellent communication skills to work effectively in a cross-functional team Very good English (B2/C1) – both written and spoken Openness to AI-assisted coding and a proactive approach to new technologies We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres) Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: Senior DevOps / Platform Engineer role focused on owning deployment, reliability, and operational excellence for a Voice AI product in production. The position emphasizes hands-on infrastructure, CI/CD, observability, and running AI-heavy voice systems at scale. The engineer will independently improve production systems, developer workflows, and operational standards. 🗂️ Requirements: Senior-level experience in DevOps, Platform Engineering, SRE, or Infrastructure Engineering, Strong cloud experience with AWS, Azure, or similar, Hands-on experience with Infrastructure as Code, Experience building and maintaining CI/CD pipelines, Strong knowledge of reliability, observability, and incident response practices, Experience operating production systems, Ability to work across infrastructure and backend layers, Experience using AI tools in daily engineering workflows, On-site work in Warsaw 📃 Skills: AWS, Azure, CI/CD, IaC, SRE, DevOps, STT, TTS, STS, Observability, Infrastructure, Cloud, AI 🏢 Description: About Shelf Shelf builds software that helps enterprises make AI work in the real world. For our Voice AI product, that means reliable runtime systems, strong deployment paths, and production infrastructure that lets engineering teams move fast without creating operational chaos. About the role This role is for a senior DevOps / platform engineer who can independently own how our Voice AI product ships and runs. You will work directly with the team building our Voice AI product rather than as part of a generic centralized Platform function. The job is to make deployment, reliability, observability, and operational quality materially better. That includes infrastructure, CI/CD, environments, incident follow-through, and the practical realities of running AI-heavy systems in production. Real hands-on experience deploying voice-related systems such as STT, TTS, or STS workloads is a strong plus because it is highly relevant to the direction of the work. Location – Warsaw, work from the office What You Will Own Improve how Voice AI services are deployed, run, observed, and supported in production. Build and maintain infrastructure as code, CI/CD flows, environment setup, and paved paths that reduce developer friction. Strengthen observability with better logs, metrics, traces, dashboards, and alerts. Improve reliability through better operational standards, incident handling, post-incident follow-through, and practical SLO thinking. Work across application and infrastructure boundaries when that is what the problem requires. Reduce recurring toil through automation, documentation, and better defaults. Make sound trade-offs around cost, security, performance, and speed. Use AI tools aggressively and well to increase your own leverage and improve engineering workflows. What Strong Performance Looks Like The Voice AI team can ship faster and with fewer avoidable operational issues because of your work. The systems you touch become easier to understand, easier to operate, and easier to trust. You do not need heavy management to create momentum; you find important gaps and close them. You handle real production problems without drama and improve the system after the immediate issue is over. What We Are Looking For Strong senior-level experience in platform engineering, DevOps, SRE, infrastructure engineering, or a similar hands-on role. Strong cloud and infrastructure fundamentals in AWS, Azure, or a comparable environment. Real experience with infrastructure as code and modern delivery pipelines. Strong operational judgment around reliability, observability, incident response, and production systems. Comfort moving across layers: infrastructure, backend services, developer workflows, and operational tooling. Clear communication and strong written habits, especially around runbooks, postmortems, and technical decision making. AI-native working style. You already use AI tools in daily engineering work and think in terms of leverage, automation, and better workflows. Strong Plus Real hands-on experience deploying or operating STT, TTS, STS, or similar voice-model workloads. Experience improving developer experience for product teams, not just operating infrastructure in isolation. Experience with security, access control, compliance-minded infrastructure, and pragmatic operational guardrails. Ability to debug problems that cut across application code, infrastructure, and third-party systems. How We Evaluate Fit We care more about independent ownership, systems judgment, and practical operating ability than about a perfect keyword match to every tool we use. If you are the kind of engineer who can step into a messy production environment and make it calmer, faster, and more reliable, we want to talk. What Shelf Offers B2B contract Company Stock Options Hardware: MacBook Pro Modern technical stack . Develop open-source software Premier AI development environment: GitHub Copilot, Claude Code, OpenAI, TypingMind, v0, MCP Servers, plus credits to experiment with emerging AI tools Why Shelf: GenAI will be at least a $4 Trillion market by 2032 and Shelf is a core infrastructure that enables GenAI to be deployed at scale Our Leadership Team has deep knowledge management and AI domain expertise and enterprise SaaS background to execute this plan We've been helping our customers prevent knowledge mismanagement since our founding in 2017 We have raised over $60 million in funding and our investors include Tiger Global, Insight Partners, Connecticut Innovations, and others We have high velocity growth powered by the most innovative product in our category, 3X growth for 3 years in a row We now have over 100 employees in multiple U.S. states and European countries, and we have ambitious hiring goals over the next few months

🏢 Summary: Senior Backend Engineer role focused on designing, shipping, and owning production-grade backend systems for enterprise AI software. The position requires turning ambiguous problems into scalable architectures and maintaining reliability, performance, and observability in production. It is a product engineering role with full ownership from system design to rollout. 🗂️ Requirements: Senior-level backend engineering experience in production systems, Strong Python proficiency, Experience designing distributed systems, Knowledge of concurrency and async processing, Experience with failure handling and data consistency, Hands-on cloud experience (AWS or Azure), Experience with SQL and NoSQL databases, Ability to design data models and system boundaries, Experience building and maintaining APIs and backend services, Production experience with observability and performance tuning, Ability to write technical specifications and architecture documentation, Experience using AI tools in engineering workflows 📃 Skills: Python, AWS, Azure, SQL, NoSQL, APIs, DistributedSystems, Concurrency, Async, Observability, LLM, TypeScript 🏢 Description: About Shelf Shelf builds software that helps enterprises make AI work in the real world. We care about the hard part: reliable systems, clear operational logic, and production-grade engineering that makes AI useful instead of brittle. Job Description: This role is for a senior backend engineer who can own important systems, not just implement tickets. You will take ambiguous problems, design the right backend approach, ship it, and keep it healthy in production. We want someone who is strong technically, communicates clearly, and has the judgment to make systems simpler, safer, and easier to evolve over time. This is a product engineering role with real ownership from system design through production. Location – Warsaw, work from the office What You Will Own Design and ship backend services, APIs, data flows, and background processing for production systems. Turn vague requirements into concrete technical plans, trade-offs, and execution. Own services after launch: reliability, observability, performance, and incident follow-through. Make sound decisions around system boundaries, data models, interfaces, and scaling paths. Write clear technical specs, architecture notes, and diagrams when they help the team move faster. Work closely with product, frontend, and platform engineers to deliver end-to-end outcomes. Improve engineering leverage with AI tooling, automation, and internal workflows rather than using AI as a gimmick. Raise the quality bar through code review, design review, and pragmatic technical leadership. What Strong Performance Looks Like You reliably move important backend work forward without waiting to be tightly managed. Your systems are easier to operate and easier to change because of your design decisions. You communicate trade-offs clearly and make the team around you more effective. You use AI tools well: to accelerate analysis, implementation, debugging, writing, and repetitive work, while keeping a high verification bar. What We Are Looking For Strong senior-level backend engineering experience in production systems. Strong Python skills and the ability to design clean, maintainable backend code. Good distributed systems judgment: concurrency, failure handling, data consistency, async work, and service boundaries. Hands-on cloud experience in AWS, Azure, or a similar environment. Comfort with SQL and NoSQL systems, schema design, and performance tuning. Ability to go from problem statement to design to production rollout with real ownership. Clear written and verbal communication. You can explain systems, trade-offs, and incidents without hiding behind jargon. AI-native working style. You already use AI tools in your daily engineering workflow and want to keep pushing that further. Strong Plus Experience with LLM-backed systems, search, retrieval, AI infrastructure, or data-heavy pipelines. Working knowledge of TypeScript or the ability to contribute across the stack when needed. Experience shaping technical direction for other engineers, even without formal management responsibility. How We Evaluate Fit We care more about ownership, systems judgment, and learning velocity than a perfect keyword match to our stack. If you are the kind of engineer who can take a messy problem and turn it into a strong production system, we want to talk. What Shelf Offers: B2B contract. Company Stock Options. Hardware: MacBook Pro. Modern technical stack . Develop open-source software . GitHub Copilot subscription. Access to Claude Code, OpenAI Codex, TypingMind, and MCP Servers. Why Shelf: Our Leadership Team has deep knowledge management and AI domain expertise and enterprise SaaS background to execute this plan We love our customers and our customers love us. Ask a Shelf customer why, and they’ll tell you it’s because of our innovative capabilities, rock-solid reliability, they truly enjoy working with our people, but most of all – it’s the improvements they see in their business KPIs. We have raised over $60 million in funding and our investors include Tiger Global, Insight Partners, Connecticut Innovations, and others We have high velocity growth powered by the most innovative product in our category, 3X growth for 3 years in a row We now have over 100 employees in multiple U.S. states and European countries, and we have ambitious hiring goals over the next few months

🏢 Summary: Senior Backend Engineer role focused on owning and designing production-grade backend systems, from ambiguous problem definition through architecture, implementation, and long-term reliability. The position emphasizes strong system design, distributed systems judgment, and hands-on cloud engineering, with full ownership of services in production. This is a product engineering role with end-to-end responsibility across backend architecture, scalability, and operational excellence. 🗂️ Requirements: Senior-level backend engineering experience in production systems, Strong Python proficiency, Experience designing and operating distributed systems, Knowledge of concurrency, failure handling, and data consistency, Hands-on cloud experience (AWS, Azure or similar), Experience with SQL and NoSQL databases, Ability to design data models and perform schema design, Experience with performance tuning and scalability, Ability to design, implement, and operate backend services end-to-end, Experience using AI tools in daily engineering workflow 📃 Skills: Python, AWS, Azure, SQL, NoSQL, Concurrency, DistributedSystems, Async, APIs, Microservices, LLM, TypeScript 🏢 Description: About Shelf Shelf builds software that helps enterprises make AI work in the real world. We care about the hard part: reliable systems, clear operational logic, and production-grade engineering that makes AI useful instead of brittle. Job Description: This role is for a senior backend engineer who can own important systems, not just implement tickets. You will take ambiguous problems, design the right backend approach, ship it, and keep it healthy in production. We want someone who is strong technically, communicates clearly, and has the judgment to make systems simpler, safer, and easier to evolve over time. This is a product engineering role with real ownership from system design through production. Location – Warsaw, work from the office What You Will Own Design and ship backend services, APIs, data flows, and background processing for production systems. Turn vague requirements into concrete technical plans, trade-offs, and execution. Own services after launch: reliability, observability, performance, and incident follow-through. Make sound decisions around system boundaries, data models, interfaces, and scaling paths. Write clear technical specs, architecture notes, and diagrams when they help the team move faster. Work closely with product, frontend, and platform engineers to deliver end-to-end outcomes. Improve engineering leverage with AI tooling, automation, and internal workflows rather than using AI as a gimmick. Raise the quality bar through code review, design review, and pragmatic technical leadership. What Strong Performance Looks Like You reliably move important backend work forward without waiting to be tightly managed. Your systems are easier to operate and easier to change because of your design decisions. You communicate trade-offs clearly and make the team around you more effective. You use AI tools well: to accelerate analysis, implementation, debugging, writing, and repetitive work, while keeping a high verification bar. What We Are Looking For Strong senior-level backend engineering experience in production systems. Strong Python skills and the ability to design clean, maintainable backend code. Good distributed systems judgment: concurrency, failure handling, data consistency, async work, and service boundaries. Hands-on cloud experience in AWS, Azure, or a similar environment. Comfort with SQL and NoSQL systems, schema design, and performance tuning. Ability to go from problem statement to design to production rollout with real ownership. Clear written and verbal communication. You can explain systems, trade-offs, and incidents without hiding behind jargon. AI-native working style. You already use AI tools in your daily engineering workflow and want to keep pushing that further. Strong Plus Experience with LLM-backed systems, search, retrieval, AI infrastructure, or data-heavy pipelines. Working knowledge of TypeScript or the ability to contribute across the stack when needed. Experience shaping technical direction for other engineers, even without formal management responsibility. How We Evaluate Fit We care more about ownership, systems judgment, and learning velocity than a perfect keyword match to our stack. If you are the kind of engineer who can take a messy problem and turn it into a strong production system, we want to talk. What Shelf Offers: B2B contract. Company Stock Options. Hardware: MacBook Pro. Modern technical stack . Develop open-source software . GitHub Copilot subscription. Access to Claude Code, OpenAI Codex, TypingMind, and MCP Servers. Why Shelf: Our Leadership Team has deep knowledge management and AI domain expertise and enterprise SaaS background to execute this plan We love our customers and our customers love us. Ask a Shelf customer why, and they’ll tell you it’s because of our innovative capabilities, rock-solid reliability, they truly enjoy working with our people, but most of all – it’s the improvements they see in their business KPIs. We have raised over $60 million in funding and our investors include Tiger Global, Insight Partners, Connecticut Innovations, and others We have high velocity growth powered by the most innovative product in our category, 3X growth for 3 years in a row We now have over 100 employees in multiple U.S. states and European countries, and we have ambitious hiring goals over the next few months

🏢 Summary: Senior or Staff Backend Engineer role focused on architecting and scaling AI-native backend systems for a modern accounting platform. The position involves designing distributed services, building high-performance APIs, and establishing engineering standards to support rapid, reliable product delivery. You will work closely with Product, AI, and Operations teams to develop agentic systems and scalable data pipelines. 🗂️ Requirements: 5–10+ years of backend engineering experience, Proven experience designing, building, and operating production backend systems at scale, Strong expertise in API design, Strong expertise in data modelling, Deep understanding of distributed systems trade-offs, Hands-on experience with AWS or GCP in production, Practical experience with CI/CD in high-frequency deployment environments, Experience implementing testing and deployment strategies, Strong knowledge of observability practices, Experience participating in on-call rotations 📃 Skills: TypeScript, Node.js, React, AWS, GCP, Terraform, PostgreSQL, OpenAI, Azure, CI/CD, APIs, DistributedSystems 🏢 Description: ABOUT THE ROLE We're looking for a Senior or Staff Backend Engineer to own and evolve our backend services as we scale. This is a broad, high-impact role — you'll architect new features, build the systems that underpin our core product, and set the engineering standards that shape how the whole team works. The focus is on building a modern, AI-native developer experience. That means working closely with Product, AI, and Operations teams to design agentic systems, distributed data pipelines, and scalable incident response infrastructure — and doing it in a way that lets the team ship with confidence multiple times a day. WHAT YOU'LL WORK ON Architecture and feature design Partner with Product, AI, and Operations teams to architect new features and complex agentic systems. Make clear architectural trade-offs that balance platform, product, and business goals. Backend services and APIs Build and maintain the backend services and APIs that power the core product. Ensure systems are secure, well-tested, and high performance. Distributed systems Design and implement distributed services to orchestrate data pipelines, automate investigations, and enable incident response at scale. Operational excellence Own operational best practices so the team can ship multiple times a day with confidence. Healthy on-call culture and strong observability are part of what you'll build and maintain. Engineering standards Set the bar for writing, communication, and system design across the team. Your influence will shape how a modern AI-native product is built. WHAT WE LOOK FOR 5–10+ years of backend engineering experience A strong track record designing, building, and operating production backend systems at scale. Deep backend fundamentals Expertise in API design, data modelling, and reasoning about distributed systems trade-offs. You understand the nuances, not just the patterns. AWS or GCP hands-on experience Solid understanding of how infrastructure decisions impact application reliability and performance. You've run things in production, not just designed them. CI/CD in practice Practical experience with testing and deployment strategies in high-frequency shipping environments. Observability and on-call maturity A solid grasp of what good observability looks like and how to build healthy on-call practices that don't burn people out. Bonus Experience at an early-stage or scaling startup. Exposure to modern AI and ML systems. Experience shipping product without a dedicated product manager. TECH STACK TypeScript, React, Node.js, AWS, Terraform, PostgreSQL, OpenAI, Azure AI. The team uses GitHub, Slack, Linear, Figma, and Notion day to day. THE TEAM Small, senior, and in-person. The office is in central Wrocław, next to the main train station. The expectation is 4–5 days a week in the office. Relocation support is available for the right candidate. COMPENSATION & BENEFITS Salary $130,000 – $190,000 USD depending on experience, plus competitive equity. Wellness and commute stipend $100 per month. Hardware Premium hardware provided — MacBook Pro and AirPods. Food Daily in-office lunch and dinner. Time off 20 PTO days plus 9 US public holidays. Relocation Support available for candidates relocating to Wrocław.

🏢 Summary: Senior DevOps Engineer responsible for owning and scaling Kubernetes-based hybrid infrastructure supporting a large-scale feed marketing platform. The role focuses on improving reliability, automating CI/CD, strengthening security, and enhancing observability across AWS/GCP and on-prem environments. It is a hands-on position with full infrastructure ownership and close collaboration with development teams. 🗂️ Requirements: Strong Kubernetes administration experience, Experience with Helm and ArgoCD, Hands-on CI/CD pipeline management, Proficiency in Python or Bash scripting, Experience with Prometheus, Grafana, Loki, Alertmanager, OpenTelemetry, Experience with AWS and/or GCP in hybrid environments, Infrastructure as Code using Terraform, Ansible or SaltStack, Experience with DevSecOps tools and secret management, Knowledge of disaster recovery strategies and RTO/RPO, Experience with GitOps workflows 📃 Skills: Kubernetes, Helm, ArgoCD, GitOps, Jenkins, GitHub, GitLab, Python, Bash, Prometheus, Grafana, Loki, Alertmanager, OpenTelemetry, AWS, GCP, Terraform, Ansible, SaltStack, Vault, Docker, CI/CD 🏢 Description: DataFeedWatch · part of Cart.com Senior DevOps Engineer Location Remote (Poland preferred) · EU candidates welcome Contract B2B or UoP Salary 25 000-32 000 PLN net (B2B) / gross (UoP) Team Infrastructure · DevOps Product Manager, 1 Senior DevOps + 3 sysadmins· ABOUT DATAFEEDWATCH DataFeedWatch is a market-leading Feed Marketing platform trusted by 20,000 online shops across 6 continents to advertise on Google, Facebook, Amazon, and hundreds of other shopping channels. Since March 2022 we are part of Cart.com , a fast-growing commerce platform that gives us the scale, resources, and ambition to build something genuinely significant. Our team of nearly 100 people — 15 nationalities — is built on a simple belief: give smart people real ownership and get out of their way. We are a remote-first company that works hard, ships fast, and genuinely likes each other. THE ROLE We are growing our infrastructure capability to match the pace of the business. As Senior DevOps Engineer you will join a lean, experienced team — a DevOps Product Manager, Senior DevOps Engineer, a SysAdmin trio who are a genuine part of the team, and now you. You will take real ownership of the systems that keep 20,000 merchants running, work closely with the DevOps Product Manager on architecture and direction, and partner directly with our development teams — not as a support function, but as a technical co-owner of how we build and ship software. This is a hands-on role. You will spend your time improving reliability, reducing toil, and raising the engineering bar — not managing tickets. If you want a role where the decisions you make on Monday are running in production by Friday, this is it. WHAT YOU WILL OWN Kubernetes clusters — performance tuning, security hardening, observability, and regular upgrades CI/CD pipelines — automating delivery, deployments, rollbacks, and metrics collection across the software lifecycle Monitoring and observability stack — dashboards, alerts, SLO/SLI tracking, and log aggregation Hybrid infrastructure across on-prem and AWS/GCP — full IaC ownership and disaster recovery Security across the full technology stack — image scanning, secret management, policy enforcement, automated patching, and vulnerability remediation Operational toil reduction — scripting and automation that makes the team faster and on-call quieter Collaboration with development teams on deployments, architecture decisions, code reviews, and onboarding new services WHAT YOU BRING Required Kubernetes administration, networking, and autoscaling — Helm, ArgoCD, and GitOps experience strongly preferred Hands-on CI/CD experience — Jenkins, GitHub Actions, or GitLab CI Scripting proficiency in Python or Bash; a software development background is a genuine advantage Prometheus, Grafana, Loki, Alertmanager, and OpenTelemetry — metrics, tracing, log aggregation, and alerting pipelines AWS and/or GCP experience in hybrid cloud and on-prem environments with IaC tools — Terraform, Ansible, or SaltStack DevSecOps tooling — Vault, AWS Secrets Manager, container scanning, and policy-as-code Disaster recovery fundamentals — backup strategies, RTO/RPO definitions Ownership mindset — you diagnose and solve problems independently; you do not wait to be directed Strong communication skills and the ability to work effectively with non-engineering stakeholders Comfort using AI tools as a natural part of daily engineering work Nice to have Ruby scripting experience Experience in e-commerce, ad tech, or feed management platforms Prior work in a scale-up or fast-growth environment where infrastructure evolves quickly WHAT SUCCESS LOOKS LIKE At 3 months — you understand the full infrastructure landscape, have identified the top 3 reliability or toil risks, and have shipped at least one meaningful improvement. At 6 months — CI/CD pipelines are measurably more stable, observability coverage has improved, and development teams notice the difference. At 12 months — you are a trusted technical co-owner of infrastructure decisions, on-call burden has decreased, and the team's delivery velocity is higher because of your contributions. WHY JOIN US Impact — play a key role in scaling infrastructure that powers 20,000 merchants across 6 continents Ownership — real technical autonomy; you will make architecture decisions, not just implement them Growth — we invest in people who want to go deep, not just up; expand your skills, your product understanding, and your influence in a team that keeps the right people for the long term Culture — a collaborative, no-nonsense team of 15 nationalities that values people who make their own decisions Remote-first — flexible hours and async-friendly culture; we care about output, not hours online Perks — competitive salary, health insurance, lunch card, and a comprehensive benefits package HIRING PROCESS We run a structured, respectful process designed to be efficient for both sides. Expect 3–4 stages over 2–3 weeks: Screening call with our Recruiter (30 min) WHO interview — career deep-dive with your future line manager and a technical peer (90 min) Technical interview — system design and a practical infrastructure exercise (60 min) Reference checks and offer We move fast on people we are excited about. If that is you, you will know quickly.