Senior Software Engineer, Core Platform

🏢 Summary: Senior Frontend Engineer role focused on building and enhancing scalable web applications for a global e-commerce platform. The position involves designing responsive user interfaces, optimizing performance, and contributing to frontend architecture using modern technologies. You will collaborate with cross-functional teams to deliver high-quality, reusable, and accessible UI solutions. 🗂️ Requirements: Degree in Computer Science or equivalent experience, 4+ years of software engineering experience, Strong knowledge of JavaScript, TypeScript, HTML, CSS, Expertise in React ecosystem, Experience with state management libraries, Experience with testing frameworks, Experience with CI/CD pipelines, Experience with cloud environments, Understanding of APIs and distributed systems, Knowledge of SQL databases 📃 Skills: JavaScript, TypeScript, HTML, CSS, React, Zustand, ReactQuery, RxJS, Jest, Playwright, CI/CD, Azure, Kubernetes, SQL, APIs, Microfrontends, Routing, Bundlers 🏢 Description: Position: Senior Frontend Engineer Type of contract: COE (UoP) up to 22 700 PLB gross/month Working model: fully remote You can join our client and work on a modern digital platform designed to better connect shoppers and retailers within the global e-commerce ecosystem. The project focuses on building and enhancing scalable web applications and core services that power user interactions. You’ll collaborate closely with product and design teams to deliver intuitive, high-performance user experiences. The environment emphasizes innovation, usability, and continuous improvement of frontend architecture. Role summary: As a Senior Engineer, you will take ownership of designing and developing responsive, high-quality user interfaces while collaborating with cross-functional teams. The role involves translating UI/UX designs into functional applications, improving performance, and ensuring consistency through reusable components. You’ll also contribute to code quality through reviews and support architectural decisions. The position requires strong expertise in modern frontend technologies, especially React and TypeScript, along with experience in scalable application development. Responsibilities: Design and develop modern, responsive user interfaces Collaborate with designers, backend engineers, and DevOps teams Review code and maintain high engineering standards Build reusable UI components and optimize performance Ensure cross-browser compatibility and accessibility Key requirements: Degree in Computer Science (or equivalent experience) 4+ years of experience in software engineering Hands-on experience in writing production code for web applications; Practical knowledge in front-end technologies such as JavaScript, TypeScript, CSS, HTML, with strong proficiency in TypeScript (generics, type-safe APIs, strict mode); Expertise in the React ecosystem including React 19, React Router, modern bundlers (Rsbuild/Webpack/Vite), and micro-frontend architectures (Module Federation); Experience with state management and data-fetching libraries such as Zustand, TanStack React Query, and reactive patterns with RxJS; Familiarity with modern component libraries and styling toolchains-  HeroUI, Tailwind CSS, design-token-driven theming; Experience with unit and E2E testing frameworks such as Jest, Testing Library, and Playwright; Experience working with internal packages and publishing them to a private registry and Semantic Versioning; Familiarity with CI/CD pipelines and release workflows- Azure DevOps, GitHub Actions, or Jenkins- including PR validation, artifact promotion, and multi-environment deploys; An understanding of cloud computing principles and practices; experience with production applications in cloud environments. Azure and Kubernetes experience is preferred; Knowledge in key programming concepts like memory management, optimization techniques, API design, relational mapping frameworks, and distributed applications; An understanding of database concepts and experience writing SQL in a relational database such as MySQL or PostgreSQL; Familiarity with monitoring and logging solutions; Self-starter who can move projects forward by filling in the gaps on Agile teams, from delivering complete, well-defined functionalities with high quality standards, through reviewing other Engineers' code to contributing to design sessions. Offer: COE, up to 22 700 PLN gross per month Private healthcare, life insurance, sports card, and lunch subsidy Learning and development support (including tuition assistance) Employee Assistance Program Remote or hybrid work model supporting work–life balance Opportunity to collaborate with experienced engineers on global-scale e-commerce solutions

🏢 Summary: Senior Frontend Engineer role focused on building and enhancing scalable web applications for a global e-commerce platform. The position involves designing high-quality, responsive user interfaces, optimizing performance, and contributing to frontend architecture using modern React and TypeScript ecosystems. You will collaborate with cross-functional teams to deliver robust, reusable, and maintainable frontend solutions. 🗂️ Requirements: Degree in Computer Science or equivalent experience, 4+ years of software engineering experience, Commercial experience in building production web applications, Strong proficiency in TypeScript including generics and strict mode, Expertise in React ecosystem including React 19 and React Router, Experience with modern bundlers, Experience with micro-frontend architecture and Module Federation, Experience with state management libraries, Experience with data-fetching libraries, Experience with unit and E2E testing, Experience publishing internal packages and Semantic Versioning, Experience with CI/CD pipelines and release workflows, Understanding of cloud computing principles, Experience with SQL and relational databases, Knowledge of API design and distributed applications 📃 Skills: JavaScript, TypeScript, React, ReactRouter, Rsbuild, Webpack, Vite, ModuleFederation, Zustand, TanStackQuery, RxJS, HeroUI, Tailwind, Jest, TestingLibrary, Playwright, Azure, Kubernetes, AzureDevOps, GitHubActions, Jenkins, SQL, MySQL, PostgreSQL 🏢 Description: Position: Senior Frontend Engineer Type of contract: COE (UoP) up to 22 700 PLN gross/month Working model: fully remote You can join our client and work on a modern digital platform designed to better connect shoppers and retailers within the global e-commerce ecosystem. The project focuses on building and enhancing scalable web applications and core services that power user interactions. You’ll collaborate closely with product and design teams to deliver intuitive, high-performance user experiences. The environment emphasizes innovation, usability, and continuous improvement of frontend architecture. Role summary: As a Senior Engineer, you will take ownership of designing and developing responsive, high-quality user interfaces while collaborating with cross-functional teams. The role involves translating UI/UX designs into functional applications, improving performance, and ensuring consistency through reusable components. You’ll also contribute to code quality through reviews and support architectural decisions. The position requires strong expertise in modern frontend technologies, especially React and TypeScript, along with experience in scalable application development. Responsibilities: Design and develop modern, responsive user interfaces Collaborate with designers, backend engineers, and DevOps teams Review code and maintain high engineering standards Build reusable UI components and optimize performance Ensure cross-browser compatibility and accessibility Key requirements: Degree in Computer Science (or equivalent experience) 4+ years of experience in software engineering Hands-on experience in writing production code for web applications; Practical knowledge in front-end technologies such as JavaScript, TypeScript, CSS, HTML, with strong proficiency in TypeScript (generics, type-safe APIs, strict mode); Expertise in the React ecosystem including React 19, React Router, modern bundlers (Rsbuild/Webpack/Vite), and micro-frontend architectures (Module Federation); Experience with state management and data-fetching libraries such as Zustand, TanStack React Query, and reactive patterns with RxJS; Familiarity with modern component libraries and styling toolchains-  HeroUI, Tailwind CSS, design-token-driven theming; Experience with unit and E2E testing frameworks such as Jest, Testing Library, and Playwright; Experience working with internal packages and publishing them to a private registry and Semantic Versioning; Familiarity with CI/CD pipelines and release workflows- Azure DevOps, GitHub Actions, or Jenkins- including PR validation, artifact promotion, and multi-environment deploys; An understanding of cloud computing principles and practices; experience with production applications in cloud environments. Azure and Kubernetes experience is preferred; Knowledge in key programming concepts like memory management, optimization techniques, API design, relational mapping frameworks, and distributed applications; An understanding of database concepts and experience writing SQL in a relational database such as MySQL or PostgreSQL; Familiarity with monitoring and logging solutions; Self-starter who can move projects forward by filling in the gaps on Agile teams, from delivering complete, well-defined functionalities with high quality standards, through reviewing other Engineers’ code to contributing to design sessions. Offer: COE, up to 22 700 PLN gross per month Private healthcare, life insurance, sports card, and lunch subsidy Learning and development support (including tuition assistance) Employee Assistance Program Remote or hybrid work model supporting work–life balance Opportunity to collaborate with experienced engineers on global-scale e-commerce solutions

🏢 Summary: Full-time remote Senior DevOps Engineer role in a fintech company building a digital trading and investment platform. The position focuses on designing, deploying, and operating highly available cloud infrastructure on Oracle Cloud, automating infrastructure with IaC, and managing CI/CD, containers, monitoring, and security. The engineer will also support production systems, harden environments, and optimize platform reliability and performance. 🗂️ Requirements: 7+ years in DevOps or Cloud Engineering roles, Hands-on experience with Oracle Cloud Infrastructure services, Experience in high-availability production environments, Infrastructure as Code experience with Terraform, Container orchestration experience with Docker and Kubernetes, CI/CD pipeline implementation using GitHub and Jenkins, Secrets management using HashiCorp Vault, Monitoring and logging stack implementation, Experience with SQL and NoSQL databases, Experience with message brokers, Strong Linux administration skills, Networking knowledge including Nginx and WAF, Scripting in Bash and Python, OS hardening and vulnerability patching for Linux and Windows 📃 Skills: OracleCloud, Terraform, Docker, Kubernetes, Helm, GitHub, Jenkins, Vault, Prometheus, Grafana, ELK, Kibana, NewRelic, Datadog, MySQL, PostgreSQL, CockroachDB, MongoDB, Kafka, Redis, Linux, Nginx, Ansible, Git, Bash, Python, Cloudflare, WAF, ActiveDirectory 🏢 Description: 💰 Salary: 7000-8000 USD/Month 💻 100% remote 🕦 Full-time ☑️ B2B We’re looking for a Senior DevOps Engineer to join a fast-growing fintech company that builds a digital trading and investment platform. Requirements: 7+ years of experience in DevOps, Cloud Engineering, or a closely related infrastructure role. Experience working in high-availability, production-grade environments, ideally within fintech, banking, trading, or other regulated industries. Strong hands-on experience with Oracle Cloud Infrastructure, including services such as IDCS, VCN, Compute Instances, OCR, OKE, OSS, DRG, Buckets, DB system, S2S VPN, Load Balancers, Email Delivery, and vulnerability scanning. Hands-on experience with Infrastructure as Code using Terraform and container orchestration with Docker, Docker Compose, Kubernetes, Helm, and Ingress Controllers. Solid experience with CI/CD tooling, including GitHub, Jenkins, and HashiCorp Vault. Experience automating logging, alerting, and monitoring using stacks such as Alert Manager, Prometheus, Grafana, ELK, Kibana, New Relic, and Datadog. Hands-on experience with databases and message brokers, including SQL, MySQL, CockroachDB, MongoDB, Kafka, Redis, and PostgreSQL. Strong Linux and networking knowledge, including Nginx, Ansible, Git, SAML SSO implementation, Bash scripting, Python, Active Directory, WAF, patch management, and Cloudflare. Experience with OS hardening and vulnerability patching for both Linux and Windows servers. Programming and scripting skills in Bash and Python. Nice to Have: Hands-on experience with API6 API Gateway implementation and configuration. Experience with code analytics tooling such as SonarQube. Familiarity with security and vulnerability tools such as Trendmicro Deep Security and Endpoint Security. Exposure to SOC, DLP, and MDM tooling and processes. Exposure to trading system environments. Experience mentoring junior engineers and contributing to operational documentation. Key Responsibilities: Design, deploy, and operate scalable cloud infrastructure on Oracle Cloud, covering compute, networking, storage, databases, and identity services. Own and evolve Infrastructure as Code using Terraform, and manage container orchestration across Docker, Kubernetes, Helm, and Ingress Controllers. Build and maintain CI/CD pipelines across GitHub and Jenkins, and manage secrets via HashiCorp Vault. Implement and automate logging, alerting, and monitoring across Alert Manager, Prometheus, Grafana, ELK, Kibana, New Relic, and Datadog, with health checks integrated into deployments. Configure and maintain databases and message brokers, including MySQL, PostgreSQL, CockroachDB, MongoDB, Kafka, and Redis. Implement and configure the API6 API Gateway, manage WAF rules, and harden network-layer services including Nginx and Cloudflare. Perform OS hardening and vulnerability patching across Linux and Windows servers, and operate endpoint security tooling such as Trendmicro Deep Security. Lead root cause analysis and post-mortems, document operational processes, and contribute to runbooks and performance metrics tracking. Mentor junior engineers, collaborate with development teams on software requirements and test interpretation, and consult with management on operational impact and risk of platform decisions.

🏢 Summary: Senior Infrastructure Engineer role for an on-site core team building an AI-powered developer platform. The offer focuses on end-to-end ownership of scalable cloud infrastructure, Kubernetes orchestration, distributed workflows, CI/CD, observability, and production TypeScript services, with compensation of 34,000–36,000 PLN net B2B or 31,000–32,000 PLN gross under an employment contract. 🗂️ Requirements: 8+ years of software engineering experience, 3+ years of cloud infrastructure or platform engineering experience, 3+ years of React development experience, 3+ years of enterprise CI/CD pipeline experience, Production experience with complex multi-service applications at scale, End-to-end ownership of cloud infrastructure decisions and delivery, Expert TypeScript, Node.js, React, and Next.js skills, AWS experience with EKS, networking, IAM, and secrets management, Production Kubernetes experience, Monorepo architecture experience, Hands-on on-site collaboration experience, Technical mentoring and architectural guidance skills 📃 Skills: TypeScript, Node.js, React, Next.js, AWS, EKS, Kubernetes, Nx, IAM, CI/CD, APIs, Microservices, Webhooks, Monorepos 🏢 Description: Position: Senior Infrastructure Engineer Working model: on-site only Location: Kraków (full time office) Salary: 34,000 – 36,000 PLN netto (B2B) or 31,000 – 32, 000 PLN brutto (UoP) Role overview: Our client does not just build software; they engineer competitive advantages. They are building a proprietary, near-deterministic AI-powered development platform designed for broad developer adoption, operating at the absolute frontier of technology alongside the world’s leading AI labs. They are looking for a Senior Infrastructure Engineer to join their core team to drive system design and take full ownership of infrastructure delivery. In this role, you will lead the architecture, construction, and operation of everything from container orchestration and distributed job queues to infrastructure-as-code patterns and production telemetry. This is a highly hands-on platform and infrastructure engineering role. You will routinely write production-grade TypeScript backend services, stand up scalable cloud infrastructure, and ensure that long-running, resource-intensive developer workflows remain completely reliable, highly observable, and thoroughly secure under heavy load. Requirements: Experience 8+ years of hard-core software engineering experience. 3+ years of dedicated cloud infrastructure or platform engineering experience. 3+ years of practical experience building responsive React applications. 3+ years building, maintaining, and optimizing enterprise-grade CI/CD automation pipelines. Proven track record of shipping and operating complex, multi-service production applications at scale. Complete comfort owning major cloud infrastructure decisions and delivery end to end. Technical Depth & Skills Absolute expertise in TypeScript, Node.js, React, and Next.js. Deep understanding of modern monorepo architectures (such as Nx) and why massive codebases rely on structured monorepo methodologies. Strong AWS cloud experience, specifically spanning Amazon EKS, complex networking, IAM policies, and secure secrets management. Production-grade Kubernetes experience—including deployments, custom ingress routing, advanced health checks, and autoscaling policies. Familiarity with the modern developer tools ecosystem, including IDE extensions, custom CLIs, and third-party developer integrations. Extreme ownership You actively monitor staging and production environments, identifying infrastructural gaps and closing them before they impact users. You design systems for failure from day one, planning for worker crashes, duplicate webhooks, cache restarts, and transient cloud outages. You focus entirely on delivering rock-solid, working systems in production rather than structural diagrams that never ship. Mentoring & Collaboration Ability to elevate the entire engineering team through high technical standards and clear architectural guidance. Confidence collaborating hands-on in a shared office environment through pair programming, interactive design discussions, and direct exchange. Skill in helping fellow engineers grow into entirely independent problem solvers. Business DNA Deep understanding that code serves core business objectives and strategic ROI, not just technical elegance. Ability to create durable operating leverage through sound technical choices and future-proof design. Strong instinct for connecting low-level system architecture choices directly with company value. What you can expect Frontier Product: Building state-of-the-art systems and state-machine architectures that redefine how modern developers interact with AI workflows. Elite Environment: Working alongside C-level executives, industry visionaries, and core platform architects with no corporate theater or bureaucratic overhead. Responsibilities: Platform APIs & Orchestration: Build, optimize, and deploy orchestrator-style APIs on Kubernetes (managing operations like agent initialization, suspension, state synchronization, and secure reads). Asynchronous Distributed Jobs: Implement and scale distributed job queues and background workers for long-running indexing, code building, and release management tasks. Data Layer Architecture: Design, scale, and evolve the platform’s data layer—including database boundaries, optimized access patterns, and strong consistency models at scale. System Integrations: Seamlessly connect internal microservices and external webhooks with reliable event handling, transactional callbacks, and distributed handoffs. Production Operations: Own and advance logging, distributed tracing, alerting frameworks, and modern incident response workflows across production environments. Developer Experience (DX): Take ownership of local development environments, monorepo tooling, and internal productivity scripts. Monorepo Structural Evolving: Plan and execute large-scale codebase structural migrations without freezing product delivery timelines. CI/CD Pipelines: Own the architecture and continuous execution of deployment and integration pipelines end to end. Perks in the office: Premium coffee selection Secure bike parking On-site shower facilities Free selection of beverages Complimentary snacks Modern, high-end office space No dress code policy Dedicated playroom and relaxation area Benefits: Dedicated conference and professional development budget Flexible working hours

🏢 Summary: Senior Software Engineer role focused on building and operating a cloud-native engineering platform using .NET and Azure. The position centers on developing scalable platform services, Infrastructure as Code, and CI/CD automation to enhance developer productivity. You will drive DevOps practices, cloud infrastructure standardization, and platform observability in a fast-paced environment. 🗂️ Requirements: 5+ years of software development experience, Strong proficiency in C# and .NET, Hands-on experience with Microsoft Azure, Experience with Infrastructure as Code, Experience with CI/CD systems and DevOps pipelines, Experience with containers and orchestration tools, Ability to design scalable and secure cloud-native architectures, Agile team experience 📃 Skills: C#, .NET, Azure, Terraform, Bicep, ARM, CI/CD, DevOps, Docker, Kubernetes, AKS, IaC 🏢 Description: Posting Type Hybrid / Remote Job Overview We are looking for a Senior Software Engineer to join our Engineering Platform team, where you'll help build the cloud-native backbone that powers Relativity’s development ecosystem. You will work on high-impact initiatives that shape how our engineers build, test, deploy, and scale software—driving technical excellence across the company. As part of a growing and financially stable organization, you’ll have the opportunity to contribute in a dynamic, fast-moving environment that values autonomy, ownership, and practical action over excessive process. Our platform engineers are trusted with solving complex problems at scale, and empowered to make real decisions that improve the day-to-day experience of hundreds of developers. Job Description and Requirements Key Responsibilities Design, build, and operate platform services and developer tooling using .NET and Microsoft Azure that are scalable, secure, and reliable. Lead the development of Infrastructure as Code (IaC) components that automate and standardize cloud infrastructure. Drive adoption of DevOps practices and CI/CD automation across engineering teams. Collaborate closely with internal stakeholders to build reusable capabilities that improve development speed and consistency. Integrate observability, performance monitoring, and self-service tooling into the platform ecosystem. Mentor and support engineers through code reviews, technical discussions, and knowledge-sharing. Proactively identify areas of improvement, experiment with solutions, and deliver results—embracing our bias toward action. Contribute to initiatives that embed AI/ML into platform services and developer workflows. Qualifications 5+ years of software development experience with a strong command of C# and the .NET ecosystem. Deep hands-on experience with Azure services and cloud-native application patterns. Proficiency with Infrastructure as Code tools such as Terraform, Bicep, or ARM templates. Experience building or supporting CI/CD systems and modern DevOps pipelines. Familiarity with containers and orchestration tools (e.g., Docker, Kubernetes, AKS). Demonstrated success working in Agile product teams and collaborating cross-functionally. Strong problem-solving, communication, and mentorship skills. Bonus: Exposure to AI/ML tools or interest in applying AI to platform and engineering problems. Why Join Us? Be part of a growing, stable company where your work has long-term impact. Thrive in a fast-paced, evolving environment with clear opportunities for technical and career growth. Work in an engineering culture that values initiative, speed, and ownership. Shape the tools, practices, and environments that empower hundreds of engineers daily. Contribute to a mission-driven organization committed to innovation and excellence. Relativity is a diverse workplace with different skills and life experiences—and we love and celebrate those differences. We believe that employees are happiest when they're empowered to be their full, authentic selves, regardless how you identify. Benefit Highlights: Comprehensive health, dental, and vision plans Parental leave for primary and secondary caregivers Flexible work arrangements Long-term incentive program Training investment program All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. Relativity is committed to competitive, fair, and equitable compensation practices. This position is eligible for total compensation which includes a competitive base salary, an annual performance bonus, and long-term incentives. The expected salary range for this role is between following values: 208 000 and 312 000PLN The final offered salary will be based on several factors, including but not limited to the candidate's depth of experience, skill set, qualifications, and internal pay equity. Hiring at the top end of the range would not be typical, to allow for future meaningful salary growth in this position. Required Skills: Automation, Data Analysis, Database Management, Network Architecture, Performance Optimizations, Problem Solving, Project Management, Software Development, System Designs, Technical Leadership

🏢 Summary: Senior Platform Engineer role focused on building high-performance internal platform products and APIs for a global trading environment, treating infrastructure as software. The position centers on developing production-grade Go/Python solutions, Kubernetes Operators, and automation to enable scalable, resilient systems. It combines platform engineering, SRE practices, and hybrid cloud integration in a low-latency setting. 🗂️ Requirements: 7+ years experience in SRE or Platform Engineering, Strong software engineering mindset, Expert-level Go or Python proficiency, Ability to build full products/services in Go or Python, Deep knowledge of Kubernetes, Experience building Kubernetes controllers/operators, Proficiency in Terraform (IaC), Experience automating SDLC processes, Experience designing RESTful APIs, Experience with observability in distributed systems, Solid understanding of AWS, Experience integrating cloud with on-premises environments 📃 Skills: Go, Python, Kubernetes, Terraform, AWS, REST, SDLC, Observability, IaC 🏢 Description: Senior Platform Engineer Are you an engineer who views infrastructure as a software problem? We are looking for a Senior Platform Engineer to join our global Platform Engineering team. In this role, you won't just be managing cloud resources—you will be architecting and building high-performance internal products that empower our quants and traders to operate at the highest level. The Offer Salary: Up to 50,000 PLN gross/month (UoP). Location: Hybrid ( 3 days a week from our Warsaw office). Impact: Build internal products and APIs that define how our global teams deploy and scale. Modern Tech: Focus on writing production-grade Go/Python and building K8s Operators . Environment: A high-stakes trading sector where engineering excellence and code quality are the standard. Core Responsibilities Product Engineering: Develop and architect common platform solutions with a focus on high-quality, maintainable code. Developer Autonomy: Build internal APIs and custom tooling to streamline the developer experience across the firm. Infrastructure as Software: Write production-grade code (Go/Python) for infrastructure automation, optimization, and custom orchestration. SRE Advocacy: Champion SRE practices by implementing testable, resilient, and highly available software solutions. High-Performance Collaboration: Partner with Quant and Trading teams to optimize service stability and performance in a low-latency environment. Requirements Experience: 7+ years in SRE or Platform Engineering roles with a strong Software Engineering mindset . Coding Mastery: Exceptional skills in Go or Python (you should be comfortable building full products/services, not just basic scripts). K8s Expertise: Deep knowledge of Kubernetes , including orchestration and building custom controllers/operators . Automation: Proficiency in Terraform (IaC) and experience automating complex SDLC processes. System Design: Experience with RESTful APIs and building observability for complex distributed systems. Hybrid Cloud: Solid understanding of AWS and managing integration with on-premises environments. Why Join Us? This isn't a traditional "Ops" role. We are building a platform that functions as a product. If you are a software engineer who is passionate about infrastructure, scalability, and clean code, you will thrive in our culture of technical rigor and innovation. Apply today to help us build the backbone of global institutional investing.

🏢 Summary: Senior Software Engineer role focused on designing, building, and scaling secure enterprise web applications and high-performance SaaS platforms. The position covers backend APIs, microservices, testing, technical leadership, and Azure-based CI/CD delivery within Agile teams. 🗂️ Requirements: 6+ years of full-lifecycle software development experience, Experience developing and maintaining large-scale web applications and SaaS solutions, Strong proficiency in C#, .NET Core, and .NET Framework, Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipelines, Experience with NUnit, Moq, Jest, and Git, Strong problem-solving and technical communication skills 📃 Skills: C#, .NET, Azure, REST, Microservices, NUnit, Moq, Jest, Git, CI/CD, SaaS 🏢 Description: We are looking for a skilled and passionate Senior Software Engineer to join our core engineering team. In this role, you will play a key part in designing, building, and scaling enterprise-grade web applications and high-performance SaaS solutions. If you have a strong foundation in Microsoft technologies, cloud architecture, and modern engineering practices—and love solving complex technical challenges—we would love to hear from you! Key Responsibilities Architecture & Development: Design, build, and maintain scalable, secure, and resilient web applications and SaaS platforms. API & Backend Systems: Implement and optimize RESTful APIs, microservices, and Web API integrations. Quality & Testing: Drive software quality by writing comprehensive unit tests (NUnit, Moq, Jest) and advocating for test-driven practices. Technical Leadership: Participate in code reviews, architectural discussions, and technical planning to ensure clean, maintainable code. Agile Collaboration: Work closely with cross-functional teams using Agile methodologies to deliver features iteratively and efficiently. DevOps & Version Control: Utilize Git and Azure DevOps for continuous integration, project tracking, and modern deployment pipelines. Key Requirements Experience: 6+ years of hands-on experience in full-lifecycle software development. SaaS & Web Architecture: Proven track record of developing and maintaining large-scale web applications and SaaS solutions. Core Tech Stack: Strong proficiency in C# , .NET Core , and .NET Framework . Cloud & DevOps: Hands-on experience with Azure Cloud services, RESTful architectures, and CI/CD pipeline concepts. Testing & Tools: Solid experience with unit testing frameworks ( NUnit, Moq, Jest ) and version control ( Git ). Communication: Excellent problem-solving skills and the ability to articulate technical concepts clearly to team members. Nice to Have Agile Frameworks: Experience working within a SAFe (Scaled Agile Framework) environment. Mentorship: Passion for coaching junior developers and fostering team growth.

🏢 Summary: Senior Software Engineer role focused on building and scaling enterprise-grade compensation and rewards platforms using full-stack technologies and AI-powered features. The position involves end-to-end product development, technical ownership, and close collaboration with Product and Design teams in a hybrid startup-like environment. 🗂️ Requirements: 5+ years building full-stack customer-facing web applications, Experience with TypeScript, Experience with Node.js, Experience with React, Ability to translate user needs into technical solutions, Ability to work in ambiguous environments, Strong code quality and testing practices, Strong system reliability practices, Collaboration skills, Technical leadership skills 📃 Skills: TypeScript, Node.js, React, MySQL, Redis, AI 🏢 Description: Position: Senior Software Engineer Location: Krakow, hybrid working model- 3 days per week from the office Salary: 28 000 – 33 000 PLN About the company Our client is building a modern platform that helps organizations manage compensation and effectively communicate pay, rewards, and benefits. Their products are designed to bring greater transparency, trust, and clarity to compensation decisions for both employees and candidates. The company focuses on delivering enterprise-grade solutions for large, global organizations, leveraging advanced technologies and AI-driven capabilities. Operating in a fast-paced, startup-like environment, they offer engineers strong ownership and real impact on product direction. Their platform is used by leading companies to make smarter compensation decisions and improve employee experience. Role summary In this role, you will be responsible for designing and building high-quality product experiences related to compensation communication and rewards. You will work end-to-end, from shaping requirements and technical design to implementation and post-release improvements. The position offers a high level of ownership and influence over technical direction, product quality, and engineering standards. You will play a key role in scaling the product for enterprise customers while collaborating closely with Product and Design teams. This is an opportunity to combine strong engineering skills with product thinking in a high-impact environment. Responsibilities Design and build end-to-end product features (full-stack) Develop scalable solutions for enterprise-level organizations Build AI-powered features to support compensation decision-making Contribute to system architecture and engineering best practices Collaborate closely with Product and Design on roadmap and priorities Ensure high standards of code quality, testing, and reliability Solve complex technical and product challenges Requirements 5+ years of experience building customer-facing web applications (full-stack) Strong product mindset and ability to translate user needs into technical solutions Experience with technologies such as TypeScript, Node.js, and React Ability to work in ambiguous environments and break down complex problems High standards for code quality, testing, and system reliability Strong collaboration and technical leadership skills Nice to have: Experience in HR Tech, compensation, or workforce management domains Experience building enterprise-grade B2B software (e.g., permissions, audit logs, data controls) Familiarity with MySQL and Redis Experience using AI tools to enhance productivity Interest in mentoring and supporting team growth Offer: B2B contract Hybrid working model- 3 days per week from the office High level of ownership and impact on product and technology Fast-paced, startup-like environment Opportunity to work with an experienced engineering team Competitive salary and benefits package (e.g., private healthcare, learning budget – depending on the offer)

🏢 Summary: Senior Software Engineer role focused on designing and delivering full-stack, enterprise-grade web features for a modern compensation and rewards platform. The position involves end-to-end ownership from technical design to implementation, contributing to scalable architecture and AI-powered capabilities. It offers high impact on product direction and engineering standards in a fast-paced environment. 🗂️ Requirements: 5+ years experience building full-stack customer-facing web applications, Proficiency in TypeScript, Node.js, React, Experience designing scalable enterprise-level solutions, Experience building AI-powered features, Strong understanding of system architecture, Ability to ensure code quality, testing, reliability, Ability to translate user needs into technical solutions, Experience working with ambiguous requirements and complex problems 📃 Skills: TypeScript, Node.js, React, JavaScript, MySQL, Redis, AI, REST, Git, Testing 🏢 Description: Position: Senior Software Engineer Location: Krakow, hybrid working model- 3 days per week from the office Salary: 28 000 – 33 000 PLN About the company Our client is building a modern platform that helps organizations manage compensation and effectively communicate pay, rewards, and benefits. Their products are designed to bring greater transparency, trust, and clarity to compensation decisions for both employees and candidates. The company focuses on delivering enterprise-grade solutions for large, global organizations, leveraging advanced technologies and AI-driven capabilities. Operating in a fast-paced, startup-like environment, they offer engineers strong ownership and real impact on product direction. Their platform is used by leading companies to make smarter compensation decisions and improve employee experience. Role summary In this role, you will be responsible for designing and building high-quality product experiences related to compensation communication and rewards. You will work end-to-end, from shaping requirements and technical design to implementation and post-release improvements. The position offers a high level of ownership and influence over technical direction, product quality, and engineering standards. You will play a key role in scaling the product for enterprise customers while collaborating closely with Product and Design teams. This is an opportunity to combine strong engineering skills with product thinking in a high-impact environment. Responsibilities Design and build end-to-end product features (full-stack) Develop scalable solutions for enterprise-level organizations Build AI-powered features to support compensation decision-making Contribute to system architecture and engineering best practices Collaborate closely with Product and Design on roadmap and priorities Ensure high standards of code quality, testing, and reliability Solve complex technical and product challenges Requirements 5+ years of experience building customer-facing web applications (full-stack) Strong product mindset and ability to translate user needs into technical solutions Experience with technologies such as TypeScript, Node.js, and React Ability to work in ambiguous environments and break down complex problems High standards for code quality, testing, and system reliability Strong collaboration and technical leadership skills Nice to have: Experience in HR Tech, compensation, or workforce management domains Experience building enterprise-grade B2B software (e.g., permissions, audit logs, data controls) Familiarity with MySQL and Redis Experience using AI tools to enhance productivity Interest in mentoring and supporting team growth Offer: B2B contract Hybrid working model- 3 days per week from the office High level of ownership and impact on product and technology Fast-paced, startup-like environment Opportunity to work with an experienced engineering team Competitive salary and benefits package (e.g., private healthcare, learning budget – depending on the offer)

🏢 Summary: Remote Senior Security DevOps Engineer role in a fintech company building a high-traffic digital trading and investment platform. The position focuses on securing cloud infrastructure, Kubernetes environments, and CI/CD pipelines while implementing strong IAM, network security, and Security as Code practices. This is a full-time B2B contract role with a competitive monthly salary. 🗂️ Requirements: 8+ years of experience in DevOps, Cloud Security, or Site Reliability Engineering, Experience with high-traffic or regulated environments, Strong knowledge of cloud identity systems and authentication protocols, Advanced knowledge of Kubernetes security and cluster hardening, Hands-on experience with Infrastructure as Code tools, Strong understanding of Linux security mechanisms, Knowledge of networking fundamentals (TCP/IP, DNS, TLS), Experience implementing security automation in CI/CD pipelines 📃 Skills: Kubernetes, Terraform, Ansible, Linux, TCP/IP, DNS, TLS, CI/CD, IAM, RBAC, ABAC, MFA, SSO, OIDC, SAML, PKI, SOC2, ISO27001 🏢 Description: Senior Security DevOps Engineer (100% remote) 💰 Salary: 7000-8000 USD/Month 💻 100% remote 🕦 Full-time ☑️ B2B We’re looking for a Senior Security DevOps Engineer to join a fast-growing fintech company that builds a digital trading and investment platform. Requirements: 8+ years of experience in DevOps, Cloud Security, Site Reliability Engineering, or similar roles. Experience working with high-traffic systems or regulated environments, such as financial platforms or other compliance-driven industries. Strong understanding of cloud identity systems and modern authentication protocols. Advanced knowledge of Kubernetes security, container orchestration, and cluster hardening. Hands-on experience with Infrastructure as Code tools such as Terraform or Ansible. Solid understanding of Linux security mechanisms and networking fundamentals, including TCP/IP, DNS, and TLS. Experience implementing security automation within CI/CD pipelines. Nice to Have: Experience supporting security or financial compliance frameworks (e.g., SOC 2, ISO 27001, or similar). Background in cryptography concepts, including encryption standards or PKI management. Experience with resilience or security testing approaches, such as controlled failure or attack simulations. Key Responsibilities: Design and maintain secure identity and access management (IAM) strategies across cloud infrastructure, Kubernetes clusters, and internal platforms using RBAC and ABAC models. Implement privileged access management solutions to enable secure, temporary access to production environments while eliminating long-lived credentials. Enforce strong authentication and identity policies, including MFA, SSO integrations, and modern identity standards such as OIDC and SAML. Secure containerized environments by implementing Kubernetes security best practices, including network policies, workload isolation, and secure container lifecycle management. Develop and maintain network security architecture, including segmentation strategies, firewall configurations, and protection mechanisms for high-throughput APIs. Manage the lifecycle of secrets and sensitive credentials, ensuring secure storage, rotation, and access control across environments. Integrate security scanning and testing tools into CI/CD pipelines to detect vulnerabilities during development and deployment stages. Integrate security monitoring with observability tools to detect anomalies, threats, or unauthorized access attempts in real time. Promote Security as Code practices by automating security policies, checks, and infrastructure configurations. Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/