Senior Python Developer

🏢 Summary: Full-time Senior Full Stack Engineer role focused on building and maintaining scalable backend services with .NET and Java/Kotlin, and contributing to frontend development with Angular. The position involves designing secure APIs, driving UI architecture, and working within Agile teams to deliver commercial software products. Approximately 20–30% of the role is dedicated to frontend development. 🗂️ Requirements: 5+ years of commercial software development experience, Strong experience with .NET (C#) backend development, Strong experience with Java or Kotlin backend development, Hands-on experience with Kotlin in backend environments, Knowledge of Angular and TypeScript, Experience designing and working with RESTful APIs and SOAP APIs, Understanding of backend architecture, performance, security, scalability, Knowledge of Azure Cloud and application deployment, Familiarity with Azure DevOps and CI/CD processes, Experience with modern web development practices, Experience working in Agile/Scrum environments, Bachelor’s degree in Computer Science or equivalent experience, Strong English communication skills 📃 Skills: .NET, C#, Java, Kotlin, Angular, TypeScript, REST, SOAP, Azure, AzureDevOps, CI/CD 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Engineer with .NET, Java, and Angular for a full-time position (40 hours per week) in Europe. Our client is a leading global provider that gathers information and reports to enhance the environmental and social impacts on the business. A Senior Engineer must have strong backend expertise in .NET and Java/Kotlin, as well as frontend experience in Angular. Requirements: 5+ years of commercial experience in software development. Strong experience with .NET (C#) and Java/Kotlin backend development. Hands-on experience with Kotlin in backend environments. Knowledge of Angular and TypeScript. Understanding of designing and working with RESTful APIs and SOAP APIs. Solid understanding of backend architecture, including performance, security, and scalability. Knowledge of Azure Cloud, including deployment and scaling of applications. Familiarity with Azure DevOps and CI/CD processes. Strong understanding of modern web development practices. Experience working in Agile/Scrum environments. Strong communication skills in English. Bachelor’s degree in Computer Science or equivalent experience. Responsibilities: Work within an Agile team to design, estimate, develop, test, and deliver commercial software products. Develop and maintain backend services using .NET and Java/Kotlin. Design and implement secure, scalable RESTful APIs and services. Contribute to frontend development using Angular and TypeScript (~20–30%). Drive UI architecture and develop reusable UI components. Ensure best practices and design guidelines for UI and backend development. Write clean, maintainable, and efficient code for both client-side and server-side applications. Develop unit and integration tests; collaborate with QA to resolve issues. Collaborate with Product Owners and stakeholders to refine requirements and user stories. Contribute to project estimation, planning, timelines, and status updates. Provide technical guidance and mentorship where needed. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Senior Backend Python Engineer role focused on building scalable AI-powered enterprise software and owning backend services from architecture to production. The position involves backend development, distributed systems, cloud infrastructure, and technical leadership in a hybrid B2B environment. Candidates will collaborate across teams to deliver secure, high-performance applications using modern engineering and AI-assisted workflows. 🗂️ Requirements: 6+ years building production-grade backend systems, Strong Python experience, Experience with distributed systems, Knowledge of concurrency and asynchronous processing, Experience designing REST APIs, Experience with scalable architectures, Hands-on cloud platform experience, Database design and performance optimization knowledge, Experience building secure enterprise applications, Ability to own projects from design to deployment, Cross-functional collaboration skills, Strong troubleshooting and problem-solving skills, Excellent English communication skills, Experience with AI tooling and automation workflows 📃 Skills: Python, REST, AWS, GCP, Azure, SQL, TypeScript, LLM, AI, Monitoring, Logging, Observability, Automation 🏢 Description: Senior Backend Engineer (Python) 📍 Warsaw, Poland (Hybrid) ☑️ Full-time 🕦 B2B Contract 💰 $8.000 - $12.000/month We are hiring a Senior Backend Python Engineer for an innovative technology company building AI-powered enterprise software used by organizations worldwide. This role is ideal for an experienced backend engineer who enjoys designing scalable production systems, solving complex technical challenges, and taking ownership of critical backend services from architecture through production. You'll work closely with product, frontend, and platform engineers to build reliable, secure, and high-performance applications while leveraging modern AI-assisted engineering practices . As a Senior Backend Python Engineer you will provide backend development, system design, cloud infrastructure, and technical leadership in a fast-paced engineering environment where ownership and continuous improvement are highly valued. Requirements 6+ years of experience building and maintaining production-grade backend systems Strong hands-on experience with Python and modern backend development practices Strong understanding of distributed systems, concurrency, asynchronous processing, and scalable architectures Experience designing and developing REST APIs and backend services Hands-on experience with cloud platforms such as AWS, GCP, or Azure Strong knowledge of database design, performance optimization, and high-throughput applications Experience building secure, reliable enterprise applications with a security-first mindset Ability to own projects from technical design through deployment and production support Experience working closely with cross-functional engineering and product teams Strong troubleshooting, problem-solving, and communication skills Excellent written and verbal English communication skills Improve engineering leverage with AI tooling , automation, and internal workflows rather than using AI as a gimmick Nice to Have Experience building AI-powered applications, agentic systems, LLM integrations, or orchestration frameworks Experience with TypeScript or full-stack development Experience mentoring engineers or contributing to technical leadership Experience with observability, monitoring, logging, and performance optimization Experience working in fast-growing product or startup environments Responsibilities Design, develop, and maintain scalable backend services, APIs, and asynchronous processing systems Translate business requirements into robust technical solutions and scalable system designs Own services throughout their lifecycle, including deployment, monitoring, reliability, and continuous improvement Design efficient data models and optimize database performance for production workloads Collaborate with product, frontend, and platform teams to deliver end-to-end features Improve engineering productivity through automation and AI-assisted development workflows Participate in architecture discussions, code reviews, and technical decision-making Implement monitoring, logging, and observability solutions to ensure production reliability Continuously improve system scalability, performance, security, and maintainability Contribute to engineering best practices and knowledge sharing across the team

🏢 Summary: Full-time Senior Front-End Engineer (ExtJS) role focused on developing and maintaining a SaaS application in an Agile/Scrum environment. The position involves technical design, implementation, refactoring, and unit testing of front-end features, with a strong emphasis on Ext JS expertise. The role also includes contributing to architectural decisions and mentoring other engineers. 🗂️ Requirements: Strong knowledge of Ext JS (version 7 or minimum 5 years of experience), Experience in front-end web development, Proficiency in using an IDE (preferably PhpStorm), Knowledge of software design patterns, Understanding of software development best practices, Ability to work in Scrum/Agile environment, Experience with code analysis and refactoring, Ability to design, build, and unit test features 📃 Skills: ExtJS, JavaScript, HTML, CSS, PhpStorm, SaaS, Scrum, Agile, IDE, UnitTesting, Refactoring 🏢 Description: Svitla Systems Inc. is looking for a Senior Front-End Engineer (ExtJS) for a full-time position (40 hours per week) in Poland . Our client is a leading global provider that involves gathering information and reporting to enhance the environmental and social impacts on the business. Requirements Strong knowledge of Ext JS (version 7 or at least 5 years of experience). Understanding of web development using an IDE (ideally PhpStorm). Familiarity with current trends in software development. Knowledge of software design patterns and best practices. Nice to have Experience optimizing applications for performance. Experience in SaaS product development. Understanding of Scrum/Agile methodologies. Responsibilities Take part in Scrum/Agile-based development of a SaaS Application. Provide technical design, build, and unit testing for new features. Conduct analysis and refactoring of existing source code. Analyze requirements, suggest concepts, and assess development efforts. Establish yourself as a Subject Matter Expert. Mentor other engineers. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Back End Engineer role with an AI/LLM focus, responsible for building scalable backend systems and leading the integration of AI capabilities into products and engineering workflows. The position combines hands-on backend development with designing MCP servers, RAG pipelines, and AI-driven automation. It requires driving advanced adoption of LLMs and AI tooling across the development lifecycle. 🗂️ Requirements: 5+ years backend or full-stack software engineering experience, Proficiency in at least one backend language: Python, Go, Node.js, TypeScript, or Java, Experience designing and building production REST or GraphQL APIs, Experience with distributed systems, Strong knowledge of relational databases such as PostgreSQL or MySQL, Experience with caching, queues, and event-driven architectures, Experience with AWS, GCP, or Azure, Experience with CI/CD, containerization, and infrastructure as code, Hands-on experience building or integrating MCP servers, Experience implementing RAG pipelines with embeddings and retrieval logic, Experience integrating LLM APIs in production environments, Experience building AI agents or agentic workflows, Experience with prompt engineering and LLM evaluation, Experience fine-tuning or customizing models, Experience automating testing, code review, or deployment using AI 📃 Skills: Python, Go, Node.js, TypeScript, Java, REST, GraphQL, PostgreSQL, MySQL, AWS, GCP, Azure, CI/CD, Docker, Kubernetes, MCP, RAG, LLM, OpenAI, Anthropic, LangChain, LangGraph, AutoGen, Pinecone, Weaviate, pgvector, Chroma 🏢 Description: Svitla Systems Inc. is looking for a Senior Back End Engineer with AI/LLM for a full-time position (40 hours per week) in Europe. Our client generates opportunities for innovation and enhances time and cost efficiencies for MVNOs, mobile operators, and businesses providing connectivity within the telecom ecosystem. You will not only deliver production-grade backend and full-stack systems, but also help lead the organization's adoption of progressive AI tooling and engineering practices. It is a hands-on engineering role with an AI-forward mandate: we want someone who pushes the team beyond passive AI use to build, integrate, and operationalize AI capabilities across our codebase, workflows, and products. Requirements 5+ years of experience in software engineering in backend or full-stack roles. Strong knowledge of at least one modern backend language (Python, Go, Node.js/TypeScript, Java, or similar). Experience designing and building production REST/GraphQL APIs and distributed systems. Extensive knowledge of databases (PostgreSQL, MySQL, or similar) and familiarity with caching, queues, and event-driven architectures. Knowledge of cloud environment (AWS, GCP, or Azure) and modern DevOps practices (CI/CD, containerization, infrastructure as code). Have experience not just using AI (as in using Claude, Cursor, and Codex), but also building an MCP server, understanding of the RAG and LLM, and LPM that can help automate the testing, etc. Strong written and verbal communication; able to mentor and influence peers. Hands-on experience with AI/LLM engineering, including at least several of the following: Building or integrating with MCP servers; Implementing RAG pipelines (embeddings, vector databases, retrieval logic); Working with LLM APIs (OpenAI, Anthropic, Google) in production; Building AI agents or agentic workflows (LangChain, LangGraph, AutoGen, or similar); Prompt engineering and LLM evaluation; Fine-tuning or model customization; Active, sophisticated use of AI coding assistants (Claude Code, Cursor, Codex, GitHub Copilot) - able to articulate workflows, limits, and best practices; Experience automating engineering processes (testing, code review, deployment) with AI. Nice to have Open-source contributions to AI/LLM tooling or the MCP ecosystem. Familiarity with vector databases (Pinecone, Weaviate, pgvector, Chroma). Background in telecommunications, networking, or SaaS infrastructure Familiarity with model evaluation frameworks and AI observability tools. Bachelor's or Master's in Computer Science or a related field. Responsibilities Design, build, and maintain scalable backend services and APIs supporting the platform. Contribute to full-stack feature development, collaborating with frontend, infrastructure, and product teams. Write clean, well-tested, production-ready code with strong attention to performance, reliability, and maintainability. Participate in architecture decisions, code reviews, and technical planning. Lead by example in advanced AI tool adoption — go beyond using Claude, Cursor, and Codex to shape how the team uses them actively. Design and build MCP servers to expose internal data sources, APIs, and tools to LLMs and AI agents. Architect and implement RAG systems for internal and product-facing use cases. Apply working knowledge of LLMs and LPMs to evaluate, fine-tune, and integrate models into engineering workflows. Build AI-driven automation for testing, code review, documentation, and operational workflows. Mentor engineers on effective AI tool usage, prompt engineering, and AI-augmented development practices. Evaluate emerging AI tools, frameworks, and platforms; recommend adoption strategies. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Full Stack Engineer role building and scaling a high-throughput cloud platform for call tracking, marketing attribution, real-time analysis, and AI-driven workflows. The position involves hands-on development across backend and frontend systems, contributing to architecture, integrations, and production stability in a fast-moving startup environment. The engineer will work closely with founders to deliver scalable, reliable features with strong ownership and minimal oversight. 🗂️ Requirements: Senior-level full stack engineering experience in production environments, Strong backend development experience with Node.js, Strong frontend development experience with React or similar frameworks, Experience designing and maintaining complex web applications and APIs, Experience with relational databases and production data models, Knowledge of PostgreSQL or similar relational databases, Understanding of REST APIs and distributed system design, Experience integrating third-party APIs and external systems, Ability to debug and troubleshoot production systems, Experience balancing scalability, performance, and maintainability 📃 Skills: Node.js, React, JavaScript, PostgreSQL, SQL, REST, APIs, Redis, Python, HTML, CSS, Git, Cloud, AI 🏢 Description: Svitla Systems Inc. is looking for a Senior Full Stack Engineer for a full-time position (40 hours per week) in Europe. Our client is building an advanced cloud platform for call tracking, marketing attribution, real-time call analysis, and intelligent workflow automation in the pay-per-call and lead generation space. The company is in a hypergrowth phase and is actively scaling both its product platform and engineering capability. The platform combines high-throughput infrastructure, deterministic backend systems, real-time integrations, and AI-driven functionality to support transcription, summarization, extraction, scoring, and increasingly sophisticated agent-enabled workflows. You'll operate with a high degree of independence and make meaningful contributions across both backend and frontend systems. It is a hands-on senior engineering role for someone comfortable working directly with founders, shipping quickly, solving difficult production problems, and contributing to architectural and implementation decisions in a fast-moving startup environment. This role is best suited to an engineer with strong technical depth, sound judgment, product awareness, and the ability to move quickly without creating unnecessary technical debt. The right candidate will not need a heavy process, extensive oversight, or narrow task-by-task direction. This person should be able to step into an evolving system, understand the broader technical and business context, and deliver high-quality work in a practical, efficient way. The engineer will work closely with the founders and the rest of the engineering team, contributing directly to core product and platform development. The client has made it clear that they value engineers based on their performance in a real working environment, not on artificial interview exercises or theoretical problem-solving detached from production realities. Requirements: Strong experience as a Senior Full Stack Engineer, with clear ownership of both backend and frontend production systems. Solid experience in backend engineering with Node.js in real-world production environments. Expertise in frontend engineering with React or similar modern JavaScript frontend frameworks. Understanding of design, build, and maintain complex web applications and APIs that support meaningful business workflows. Strong experience working with relational databases, application data models, and production data access patterns. Knowledge of PostgreSQL or similar relational database technologies in production systems. In-depth understanding of REST APIs, asynchronous workflows, distributed integration patterns, and service-based application design. Experience integrating with third-party APIs and external systems in production environments. Ability to work effectively in evolving codebases and make good engineering decisions without requiring excessive structure or hand-holding. Expertise in debugging and troubleshooting across application logic, integrations, and production issues. Ability to balance delivery speed with long-term maintainability in a startup or high-growth environment. Nice to have: Experience working in startup or hypergrowth environments where engineers are expected to take ownership and move quickly. Familiarity with Redis, caching strategies, job processing, or event-driven application behavior. Exposure to Python and collaboration with AI or data-oriented systems. Experience building or supporting systems with high throughput, near-real-time workflows, or operationally sensitive business logic. Background in AdTech, MarTech, call tracking, attribution platforms, lead generation systems, or analytics-heavy products. Experience building internal operational tooling and admin workflows for technical or business users. Exposure to cloud-native environments and scalable distributed systems. Experience collaborating closely with technical founders, product leadership, or senior engineering stakeholders. Responsibilities: Design, build, and maintain production-grade application features across both backend and frontend systems, with strong attention to scalability, performance, reliability, and maintainability. Develop backend services and APIs using Node.js to support platform capabilities such as workflow orchestration, system integrations, feature logic, internal tooling, and real-time operational processing. Build and enhance frontend applications using React or similar modern frontend technologies to support dashboards, management interfaces, internal tools, and user-facing platform capabilities. Take ownership of significant technical areas and deliver solutions with minimal day-to-day oversight, while collaborating closely with founders and other senior engineers. Work on systems that support high-volume workflows, external integrations, and operationally important product capabilities where responsiveness and reliability matter. Implement and maintain integrations with external partner platforms, APIs, and data-driven systems, including CRM platforms, call-tracking systems, and other third-party services that are central to the product ecosystem. Contribute to architectural discussions and technical decisions related to application structure, data flow, performance optimization, maintainability, and production stability. Investigate and resolve production bottlenecks, system issues, and integration challenges in a practical, efficient manner. Collaborate with AI and data engineering team members where needed to connect backend and frontend product capabilities with intelligent workflows such as transcription, data extraction, scoring, or analytics-driven features. Help establish sound engineering patterns and raise the quality bar as the team scales, including code quality, implementation discipline, and pragmatic technical decision-making. Participate in a fast-moving engineering culture where new features, experiments, and improvements are shipped continuously. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Software Engineer role focused on backend development and system integrations for a large-scale job platform. The position involves API integrations, client and partner migrations, and backend services supporting UI applications, with overlap until 19:00–20:00 CET. The role emphasizes independent work on platform transitions and distributed systems. 🗂️ Requirements: Strong Java backend development experience, Experience building and integrating APIs, Experience with Kafka or other messaging/event streaming systems, Experience with MySQL or other relational databases, Experience with NoSQL databases (e.g., DynamoDB), Experience with system integrations or platform migrations, Ability to develop backend services supporting UI applications, Ability to work independently and proactively 📃 Skills: Java, Kafka, MySQL, DynamoDB, SQL, NoSQL, APIs, AWS 🏢 Description: Svitla Systems Inc. is looking for a Senior Software Engineer for a full-time position (40 hours per week) in Europe. Our client is one of the world’s largest and fastest-growing job sites. Overlap till 19:00 - 20:00 CET. Requirements Strong Java backend development experience. Experience building and integrating APIs. Experience with Kafka or other messaging/event streaming systems. Experience with MySQL or other relational databases. Experience working with NoSQL databases (e.g., DynamoDB). Experience working on system integrations or platform migrations. Ability to work on backend services that support UI applications. Work independently, take proactive steps, not just execute on steps. Nice to have Experience with AWS (especially DynamoDB or cloud-native services). Some AI tools experience - Optional, not required. Responsibilities Client and partner migrations, codebase transitions, and integrating systems through API calls. Perform client-side migrations, including: Updating API calls (old → new system), working across multiple client codebases, supporting pipeline / ramp issues. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Java Developer role for a long-term media industry project, focused on backend development, microservices architecture, cloud technologies, and DevOps practices. The position offers flexible remote or hybrid work in Poland and involves development, code reviews, technical consulting, and documentation within a Scrum team. 🗂️ Requirements: 4+ years of Java 8–25 development experience, Knowledge of design patterns, multithreading, and immutability, Experience with Spring Boot, Spring MVC, WebFlux, MyBatis, and TestContainers, Experience with SQL and NoSQL databases, Knowledge of microservices, REST, Kubernetes, Docker, SOA, and SSO, Experience with JUnit, Mockito, Spock, JMeter, and K6, Experience with Git, Jenkins, GitLab CI, and GitLab Pipelines, Understanding of OWASP and web application security principles, Experience working in Scrum teams, Knowledge of Unix/Linux systems, Experience with Python and Bash scripting, Understanding of AWS services including IAM, EC2, S3, Lambda, API Gateway, CloudWatch, and MSK, Experience creating technical and user documentation, Knowledge of DevOps practices and automation tools, Advanced English communication skills 📃 Skills: Java, Spring, SpringBoot, SpringMVC, WebFlux, MyBatis, TestContainers, Oracle, PostgreSQL, MongoDB, Redis, Kafka, ORM, Microservices, REST, Kubernetes, Docker, SOA, SSO, Okta, CAS, IAM, JUnit, Mockito, Spock, JMeter, K6, Git, Bitbucket, GitLab, Jenkins, CI/CD, OWASP, Scrum, Confluence, Jira, Linux, Unix, Python, Bash, AWS, EC2, S3, Lambda, APIGateway, CloudWatch, MSK, HTML, CSS, JavaScript, Angular, React, Vue.js 🏢 Description: Svitla Systems Inc. is looking for a Senior Java Developer for a full-time position (40 hours per week) in Poland. Our client is a French-based international group of media companies. It is a long-term project. There are optional night-time deployment sessions every other Wednesday at 10:00 PM. Our working hours are 8 hours and 30 minutes from Monday to Thursday, and 6 hours on Fridays, with the option to work 8 hours from Monday to Friday. You can choose to work remotely or from the office. While remote work is welcome, attendance at the Warsaw office is encouraged 1 to 3 times a week. REQUIREMENTS Minimum of 4 years of development experience using Java 8–25. Strong knowledge of design patterns, multithreading and immutability. Knowledge of such frameworks as Spring (Spring Boot, Spring MVC, WebFlux), MyBatis, TestContainers. Experience with SQL and NoSQL (Oracle, PostgreSQL, MongoDB, Redis), Confluence, Kafka, and the ability to work with ORM (Object-Relational Mapping). Understanding of software architecture, including microservices, RESTful architecture, Kubernetes, Docker, SOA (Service-Oriented Architecture), and SSO (Okta, CAS, IAM). Experience with testing tools: Unit testing (JUnit, Mockito), integration and acceptance testing (Spock), support for performance testing (JMeter, K6). Familiarity with version control and CI/CD tools: Git (Bitbucket, GitLab), Jenkins, GitLab CI, and GitLab Pipelines. High degree of independence, accountability for results and attention to the quality of implementation. Understanding of the basic principles of web application security (e.g. OWASP). Ability to collaborate within a Scrum development team. Familiarity with Confluence and Jira. Knowledge of Unix/Linux systems. Knowledge of scripting languages in a Linux environment (Python, Bash). Understanding of AWS cloud services and technologies, including IAM, EC2, S3, Lambda, API Gateway, CloudWatch, and MSK. Expertise in creating technical and user documentation Knowledge of DevOps practices and automation tools. Analytical and problem-solving skills with the ability to analyze requirements and design solutions. High level of English for communication. NICE TO HAVE Knowledge of front-end tools and technologies HTML, CSS, JavaScript (frameworks such as Angular, React or Vue.js). RESPONSIBILITIES Deliver development work. Provide technical consultations (advising other individuals and departments). Perform code reviews and foster team development. Create documentation in Confluence, managing tasks using Jira. WE OFFER US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in the workspace, either remote or in our welcoming office. Comprehensive medical insurance after one month. MultiSport card with access to 2500 sports facilities all over Poland Bonuses for recommendations of new employees. Bonuses for article writing, public talks, and other activities. 15 vacation days, 10 national holidays, 10 sick leaves, and family days off. Personalized learning program tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Welcome and anniversary presents, gifts for children, and more. Regular corporate events and meetups. Awesome team, friendly and supportive community!

🏢 Summary: Senior Backend Developer role focused on designing and delivering scalable server-side applications and APIs using Python and Django for early-stage B2B SaaS products. The position involves architectural ownership, system reliability, and performance optimization in a fully remote, full-time setup. The developer will drive backend best practices, testing, and CI/CD processes. 🗂️ Requirements: 5+ years of backend development experience, Extensive experience with Python, Extensive experience with Django, Proficiency in data modelling, Experience with relational databases, Experience with non-relational databases, Ability to write complex SQL queries, Experience with API design, Experience with system integrations, Experience with distributed systems (synchronous and asynchronous), Hands-on experience with Docker, Hands-on experience with Redis, Experience with message brokers, Experience with cron jobs, Experience writing unit tests (e.g. Pytest), Strong understanding of code quality and testing best practices, Good command of English for technical communication 📃 Skills: Python, Django, SQL, Docker, Redis, Pytest, APIs, Databases, PostgreSQL, MongoDB, CI/CD, MessageBroker, Cron, Git 🏢 Description: Senior Backend Developer (Python/Django; 100% remote) 💰 Salary: 23,400-25,500 PLN/month 🌎 100% Remote 🕦 Full-time position ☑️ B2B or Contract of Employment We are looking for a Senior Backend Developer for a partner client with a compelling mission: they act as a product and technology partner for early-stage B2B SaaS founders, helping them navigate the crucial journey from launch to their first million in revenue. They essentially become the dedicated tech backbone for these startups. Requirements: 5+ years of professional backend development experience. Extensive, proven experience with Python and the Django framework. Proficient in data modelling, relational and non-relational databases, and complex SQL queries. Strong experience with API design, integrations, and distributed systems (synchronous & asynchronous communication). Hands-on experience with Docker, Redis, message brokers, and cron jobs. Expertise in writing unit tests (e.g., Pytest) and a commitment to code quality and testing best practices. Great understanding of English with strong communication and collaboration skills. Nice to have: Previous experience in Greentech or Ecotech is a significant plus. Experience as an unofficial tech lead or mentoring junior developers. Knowledge of additional testing methodologies (integration, end-to-end). Responsibilities: Lead the design and development of complex server-side applications, APIs, and databases, taking ownership of architectural decisions. Architect, write, and deliver high-quality, scalable, and efficient code using Python and Django. Collaborate closely with cross-functional teams, including front-end developers and the tech lead, to align backend development with project goals. Architect and implement advanced user authentication, authorisation, and security mechanisms. Conduct performance analysis and optimisation, identifying bottlenecks and implementing solutions. Drive the implementation of automated testing and CI/CD processes to ensure code reliability. Establish and enforce coding standards, conduct thorough code reviews, and document backend architecture and APIs. Take responsibility for system reliability, scalability, and security, ensuring best practices. 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

🏢 Summary: Full-time Senior Platform Engineer role focused on building and operating a multi-cloud enterprise platform using modern cloud and container technologies. The position involves developing scalable, secure self-service solutions and improving reliability, performance, and cost efficiency across AWS and Azure environments. The engineer will lead platform initiatives and support containerization and infrastructure automation efforts. 🗂️ Requirements: 4+ years of Platform System engineering experience with Ruby, 3+ years of experience in distributed engineering teams, Hands-on experience with containerization technologies, Experience with Infrastructure as Code, Experience with multi-cloud deployments, Experience building and operating cloud applications at scale, Experience with public cloud platforms AWS, Azure or GCP, Degree in Computer Science or related field 📃 Skills: Ruby, Docker, Kubernetes, GitHubActions, ArgoCD, EKS, AKS, ECS, AWS, Azure, GCP, Terraform, Chef, Ansible, NAT, APIs, Containers, MultiCloud, InfraAsCode, CI/CD 🏢 Description: Svitla Systems Inc. is looking for a Senior Platform Engineer for a full-time position (40 hours per week ) in Poland. Our client provides a cloud-based platform that helps businesses manage their spending. You will play a crucial role in developing solutions for the Enterprise platform. You will be developing applications that provide self-service and increased efficiency to a diverse group of internal customers across Cloud Operations, Engineering, Customer Success & Support, and Customer Value Management. When you are successful, you will significantly accelerate the team's ability to serve customers better. This role requires working hours with overlap till 7-8 PM CET. Requirements Has 4+ years of hands-on Platform System engineering experience using Ruby. Has 3+ years of experience in engineering role, working with a diverse & distributed team located across the globe. Has experience in containerization technologies (Docker, Kubernetes, Github Actions, ArgoCdEKS, AKS, ECS) Infra As Code Exposure with Multi Cloud Deployments. Has experience building & running modern full-stack cloud applications using public cloud technologies (AWS, Azure, GCP) reliably and at scale. Has effective communication skills (written and verbal) to properly articulate complicated problems to all levels of the organization & customers. Will be confident in their ability to own and deliver a roadmap tied to business priorities Has a passion for excellence, is a natural problem solver, and a critical thinker. You should enjoy digging deep to understand issues and like solving hard problems Has a degree in Computer Science, Computer Engineering or equivalent Nice to have Knowledge of modern infrastructure management systems (Chef, Ansible, Terraform). Expertise in building Platform-as-a-Service. Responsibilities Own, build, and run a suite of impactful platforms built on modern cloud technologies that provide a suite of functionality delivering APIs, integrations, security, messaging, streaming, identity, performance, reliability & containers. Build a multi-region and multi-cloud platform that allows scalable, secure service delivery across hundreds of services on AWS & Azure clouds in a regulated environment. Act as a primary lead partnering to provide technical guidance, support, and direction for several platform engineering teams. Support NAT Gateways Technology. Support the effort to containerize a suite of applications to reduce cost and improve efficiency. Develop and drive long-term strategies and roadmaps aligning with business priorities in partnership with the dev and product management team. Use data-driven insights across the cloud estate to inform and drive new feature development to optimize usage and reduce cost. Help us in improving the reliability and Scalability of the Platform. Takes full ownership of products and has a track record of sustainably delivering high-quality features & managing technical debt. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior Platform Engineer role focused on building and operating scalable, multi-cloud enterprise platforms using modern cloud and container technologies. The position involves developing self-service solutions, improving reliability and scalability, and leading platform initiatives across AWS and Azure environments. The engineer will drive cloud infrastructure, containerization, and platform strategy in a regulated, multi-region setup. 🗂️ Requirements: 4+ years of hands-on Platform/System Engineering experience with Ruby, 3+ years of experience in engineering roles within distributed global teams, Experience with containerization technologies, Experience with Infrastructure as Code and multi-cloud deployments, Experience building and running full-stack cloud applications on public cloud platforms, Ability to work overlapping hours until 7–8 PM CET, Degree in Computer Science, Computer Engineering, or equivalent 📃 Skills: Ruby, Docker, Kubernetes, GitHubActions, ArgoCD, EKS, AKS, ECS, AWS, Azure, GCP, Chef, Ansible, Terraform, NAT, APIs, Containers 🏢 Description: Svitla Systems Inc. is looking for a Senior Platform Engineer for a full-time position (40 hours per week ) in Poland. Our client provides a cloud-based platform that helps businesses manage their spending. You will play a crucial role in developing solutions for the Enterprise platform. You will be developing applications that provide self-service and increased efficiency to a diverse group of internal customers across Cloud Operations, Engineering, Customer Success & Support, and Customer Value Management. When you are successful, you will significantly accelerate the team's ability to serve customers better. This role requires working hours with overlap till 7-8 PM CET. Requirements Has 4+ years of hands-on Platform System engineering experience using Ruby. Has 3+ years of experience in engineering role, working with a diverse & distributed team located across the globe. Has experience in containerization technologies (Docker, Kubernetes, Github Actions, ArgoCdEKS, AKS, ECS) Infra As Code Exposure with Multi Cloud Deployments. Has experience building & running modern full-stack cloud applications using public cloud technologies (AWS, Azure, GCP) reliably and at scale. Has effective communication skills (written and verbal) to properly articulate complicated problems to all levels of the organization & customers. Will be confident in their ability to own and deliver a roadmap tied to business priorities Has a passion for excellence, is a natural problem solver, and a critical thinker. You should enjoy digging deep to understand issues and like solving hard problems Has a degree in Computer Science, Computer Engineering or equivalent Nice to have Knowledge of modern infrastructure management systems (Chef, Ansible, Terraform). Expertise in building Platform-as-a-Service. Responsibilities Own, build, and run a suite of impactful platforms built on modern cloud technologies that provide a suite of functionality delivering APIs, integrations, security, messaging, streaming, identity, performance, reliability & containers. Build a multi-region and multi-cloud platform that allows scalable, secure service delivery across hundreds of services on AWS & Azure clouds in a regulated environment. Act as a primary lead partnering to provide technical guidance, support, and direction for several platform engineering teams. Support NAT Gateways Technology. Support the effort to containerize a suite of applications to reduce cost and improve efficiency. Develop and drive long-term strategies and roadmaps aligning with business priorities in partnership with the dev and product management team. Use data-driven insights across the cloud estate to inform and drive new feature development to optimize usage and reduce cost. Help us in improving the reliability and Scalability of the Platform. Takes full ownership of products and has a track record of sustainably delivering high-quality features & managing technical debt. We offer US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!