Senior Python Backend Developer – Cloud & Container Experts

🏢 Summary: Senior Python Backend Developer role focused on building scalable, cloud-native backend services using Python and FastAPI in GCP environments. The position involves designing containerized microservices, contributing to CI/CD pipelines, and ensuring high performance, security, and reliability of production systems. It offers fully remote work within Europe on modern cloud and container-based architectures. 🗂️ Requirements: Minimum 4 years of backend development experience with Python, Strong knowledge of GCP and cloud service architectures, Experience with containers and orchestration tools, Experience with FastAPI or similar Python frameworks, Solid understanding of microservices architecture, Experience designing and implementing RESTful APIs, Experience with CI/CD pipelines, Proficient English (spoken and written), Legal right to work in Europe 📃 Skills: Python, FastAPI, GCP, Docker, Kubernetes, Microservices, REST, CI/CD, Cloud, Containers 🏢 Description: Warszawa-based opportunity with remote work model, allowing up to 5 days per week from anywhere in Europe. As a Senior Python Backend Developer – Cloud & Container Experts , you will be working for our client, a leader in cloud computing and containerization technologies. Join a dynamic team dedicated to building scalable, resilient, and cutting-edge backend systems that power modern applications. This role offers a pathway to work on impactful projects at the forefront of digital transformation. Your main responsibilities: Design, develop, and optimize scalable backend services using Python and FastAPI within cloud environments. Implement containerized solutions leveraging Google Cloud Platform (GCP) and modern orchestration tools. Collaborate with cross-functional teams to deliver high-performance software solutions. Ensure code quality, performance, and security standards are maintained. Participate in continuous integration and deployment pipelines to streamline releases. Contribute to system architecture planning and best practices in cloud-native development. Troubleshoot and resolve production issues swiftly and efficiently. You're ideal for this role if you have: At least 4 years of experience in backend development with Python. Strong knowledge of GCP, containers, and cloud service architectures. Experience with FastAPI or similar frameworks. Previous full-stack experience is a plus; familiarity with React is advantageous. Solid understanding of microservices and RESTful API design. Ability to work independently in a remote environment and communicate effectively within international teams. It is a strong plus if you have: (optional) Additional certifications in cloud technologies or container orchestration. Experience with DevOps tools and CI/CD pipelines. Language Required for the role: Proficient command of English (spoken and written). Eligibility for the role: Only candidates with an existing legal right to work in Europe will be considered for this role.

🏢 Summary: Senior Python Backend Developer role focused on building scalable microservices and AI-driven data integration solutions for Generative AI workflows in a hybrid Kraków-based environment. The position involves developing cloud-based data pipelines, integrating diverse data sources, and supporting secure AI ecosystems within the financial sector. 🗂️ Requirements: 5+ years of Python backend development experience, FastAPI expertise, Microservices architecture experience, Experience with MongoDB, Experience with PostgreSQL, Experience with GCP BigQuery, Knowledge of Vector stores, Knowledge of Hadoop, Knowledge of Starburst, Experience with GCP or Azure, Familiarity with Google ADK, Familiarity with Memory stores, Familiarity with RAGs, Familiarity with Context Engineering, Familiarity with Evaluation systems, Good English communication skills, Legal right to work in the European Union 📃 Skills: Python, FastAPI, MongoDB, PostgreSQL, BigQuery, Hadoop, Starburst, GCP, Azure, ADK, RAG, Microservices 🏢 Description: Unleash innovation at the forefront of AI – Empower data-driven solutions that transform industries! Kraków-based opportunity with a hybrid work model (up to 3 remote days per week). As a Senior Python Backend Developer – Generative AI Data Integration, you will be working on delivering cutting-edge Generative AI experiences. The team focuses on expanding data integration capabilities to unlock new insights, enhance decision-making, and create innovative, efficient solutions that impact global financial operations. Your main responsibilities: - Develop and maintain scalable microservices leveraging Python and FastAPI to support Generative AI data workflows. - Design and implement efficient data transfer pipelines sourcing data from various systems for AI models. - Build agents that interact with diverse data sources, ensuring seamless integration with GenAI solutions. - Collaborate with cross-functional teams to optimize data architecture and pipelines in cloud environments. - Ensure robust data security, governance, and compliance in all integrations. - Contribute to the continuous improvement and innovation of data solutions within the AI ecosystem. - Maintain documentation and support hands-on testing and deployment procedures. You're ideal for this role if you have: - At least 5 years of experience in Python backend development within complex data-driven environments. - Strong expertise with FastAPI framework and microservices architecture. - Hands-on experience with databases such as MongoDB, PostgreSQL, and GCP BigQuery. - Knowledge of Vector stores, Hadoop, and Starburst (Data Virtualization). - Experience working with Google Cloud Platform (GCP) and/or Azure Cloud. - Familiarity with Google ADK, Memory stores, RAGs, Context Engineering, and Evaluation systems. It is a strong plus if you have: - Certifications or experience in AI/ML systems. - Knowledge of data security and compliance standards pertinent to financial services. Language Required for the role: - Good command of English – communicative level required. Eligibility for the role: - Only candidates with an existing legal right to work in the European Union will be considered for this role.

🏢 Summary: Senior Backend Engineer role focused on building secure, scalable backend services in Python and Node.js for advanced cybersecurity platforms. The position involves architecting and operating cloud-native solutions on GCP, optimizing databases, and implementing secure authentication flows. You will drive automation, reliability, and best practices in a hybrid Krakow-based environment. 🗂️ Requirements: Minimum 6 years backend development experience, Expertise in Python, Expertise in Django, Expertise in Node.js, Expertise in TypeScript, Experience with NestJS, Hands-on experience with GCP services, Experience with GKE, Experience with Cloud Run, Experience with Pub/Sub, Experience with Terraform, Strong knowledge of security principles, Experience implementing OAuth2, Experience implementing OpenID Connect, Experience with PostgreSQL, Ability to design scalable backend systems, Fluent English, Legal right to work in the EU 📃 Skills: Python, Django, Node.js, TypeScript, NestJS, GCP, GKE, CloudRun, PubSub, PostgreSQL, Terraform, OAuth2, OpenIDConnect, Go, Rust, Filestore 🏢 Description: Unleash innovation in security — shape the future of cyber defense! Krakow-based opportunity with hybrid work model As a Senior Python & Node.js Backend Engineer , you will be working for our client, a leading player in the cybersecurity industry, dedicated to building cutting-edge security platforms that protect organizations worldwide. You will contribute to developing innovative solutions that enhance digital safety, automation, and reliability—driving the next generation of security technology. Your main responsibilities: Hands-on development of high-quality, production-grade backend services in Python (Django) and Node.js (TypeScript/NestJS). Architect scalable, secure solutions on Google Cloud Platform (GKE, Cloud Run, Pub/Sub) and optimize PostgreSQL database performance. Lead the lifecycle management of cloud-native services, ensuring resilience, observability, and cost-efficiency. Design and implement OAuth2/OpenID Connect flows within GCP environments. Translate business opportunities into effective technical solutions. Develop automation to improve deployment, monitoring, and maintenance processes. Mentor team members and promote engineering best practices. Stay updated with the latest industry trends and share knowledge across teams. You're ideal for this role if you have: At least 6 years of experience in backend development or related fields. Deep expertise in Python (Django) and Node.js (TypeScript/NestJS). Hands-on experience with GCP services (Cloud Run, GKE, Filestore) and Infrastructure as Code (Terraform). Strong understanding of security principles, including zero trust models. Ability to build scalable, high-performance backend services, including some experience with Go or similar languages. A full-stack understanding with a focus on backend systems. Proven track record of creating secure, reliable, and efficient backend solutions. Demonstrated mastery in your technical discipline and a passion for engineering excellence. It is a strong plus if you have: Experience with Go, Rust, or other emerging languages. The ability to identify problems or opportunities and engineer effective solutions. Respected for your craftsmanship, not just your ideas. A holistic view to complex problem solving. Language Required for the role: Fluent English (written and spoken) Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Opportunity for a Senior Python Developer to build advanced risk management platforms for global financial institutions within demanding trading environments. The role focuses on developing scalable backend systems, contributing to cloud-based architectures, and collaborating with international clients and senior engineers. It offers high technical ownership, exposure to quantitative finance, and work across multiple modern technologies. 🗂️ Requirements: Strong commercial experience in Python backend development, Degree in Computer Science, Mathematics, Physics, or related field, Solid understanding of software architecture, algorithms, and data structures, Experience with cloud platforms (AWS, Azure, or GCP), Ability to work across multiple programming languages and tech stacks, Confident English communication skills, Willingness to work in hybrid model (4 days in Warsaw office) 📃 Skills: Python, Go, Rust, C++, TypeScript, AWS, Azure, GCP, Algorithms, DataStructures, Cloud 🏢 Description: 💎 Senior Python Developer 💎 A rare opportunity has arisen for an ambitious, highly technical Senior Python Developer to join an elite engineering team building advanced risk management solutions for global financial institutions. In this role, you will work on complex backend systems used within highly demanding financial and commodities trading environments, collaborating closely with top-tier engineers and international clients. You will contribute to the development of scalable risk platforms while working across modern cloud infrastructure and multiple programming languages. If you enjoy solving difficult engineering problems, working alongside exceptionally strong developers, and building software with real business impact… Feel invited! This role offers a unique combination of technical depth, ownership, and exposure to the world of quantitative finance. WHAT WE OFFER B2B contract Competitive salary + biannual bonus Flexible working hours Hybrid work - 4 days from the office located in Warsaw Work closely with experienced engineers from top financial and technology companies International projects and collaboration with global clients Opportunity to grow within a highly technical, developer-driven culture YOUR ROLE Develop and maintain backend systems primarily in Python Build and extend risk management software for financial institutions Design scalable and maintainable solutions for complex business requirements Collaborate directly with international clients and technical stakeholders Work across multiple technologies including Python, Go, Rust, C++, and TypeScript Contribute to cloud-based solutions running on AWS and Azure Participate in architectural discussions and technical problem solving Continuously improve platform reliability, performance, and scalability IF YOU ARE A PERSON WHO Has strong commercial experience with Python backend development Holds a degree in Computer Science, Mathematics, Physics, or a related field Has solid understanding of software architecture, algorithms, and data structures Feels comfortable working across multiple programming languages and tech stacks Communicates confidently in English and enjoys working directly with clients Has experience with cloud platforms such as AWS, Azure, or GCP Understands financial systems or has previous exposure to financial markets (nice to have) Thrives in highly collaborative, engineering-driven environments Enjoys solving complex technical challenges together with the team in the office Congrats! This offer is especially for YOU!

🏢 Summary: Senior Python Engineer role focused on building and scaling a cloud-native real-time Data Platform handling massive datasets. The position involves developing high-performance backend services, optimizing distributed systems, and integrating large-scale data storage solutions. Hybrid work model in Warsaw with employment benefits including private medical care and multisport card. 🗂️ Requirements: 8+ years of backend software development experience, Advanced Python expertise, Experience with scalable production-grade systems, Knowledge of concurrency and multiprocessing, Experience with Pandas or NumPy, Experience with Parquet or JSON data formats, Knowledge of relational and NoSQL databases, Experience with performance optimization and low-latency systems, Ability to use AI-assisted development tools responsibly 📃 Skills: Python, Pandas, NumPy, Parquet, JSON, SQL, NoSQL, API, OOP, Concurrency, Multiprocessing, Algorithms, Databases, Cloud 🏢 Description: For our client, a leading, high-growth global fintech company – we are looking for an experienced Senior Python Engineer to join a key engineering team responsible for the company’s core data foundation. The project focuses on building, optimizing, and scaling a cloud-native, high-throughput Data Platform designed to ingest, process, and distribute massive datasets in real-time. This platform serves as the backbone for various downstream analytical systems, requiring extreme reliability, performance, and scalability. This is a fantastic opportunity for a strong Python generalist who enjoys solving complex distributed system problems, optimizing data flows, and working with modern cloud architectures. Responsibilities Backend & Pipeline Development: Design and develop scalable backend services and high-performance data processing pipelines using Python. Performance Tuning: Identify bottlenecks and optimize system performance, focus on concurrency, throughput, and low-latency execution. Data Integration & Storage: Build robust integrations with modern cloud-native storage solutions and databases to manage large-scale datasets efficiently. Collaborative Engineering: Work closely with cross-functional technical teams to understand data requirements and deliver reliable API services and platform features. Engineering Excellence: Maintain top-tier coding standards, emphasizing clean code, robust testing (unit/integration), automation, and security. Requirements 8+ years of professional backend software development experience (with a strong track record in building scalable, production-grade systems). Deep expertise in Python (advanced OOP, concurrency/multiprocessing, memory management, data structures, and algorithms). Solid experience with data-centric libraries such as Pandas, NumPy, or similar data processing frameworks. Experience with large-scale data storage formats (e.g., Parquet, JSON, or column-oriented databases) and relational/NoSQL databases. AI-assisted development mindset: Comfortable utilizing AI tools  to accelerate delivery, while maintaining strong developer judgment regarding validation, testing, security, and refactoring. What our client offers: Hybrid work model in Warsaw (minimum 3 days a week in the office - strictly non-negotiable). Contract of Employment (UoP) with increased tax-deductible costs (KUP). Private medical care (including full dental care). Lunch card to cover your daily meals. Multisport card.

🏢 Summary: B2B contract for a Senior Python Backend Developer to design, build, and maintain scalable backend systems in a fully remote environment (Poland-based). The role focuses on developing production-grade services and APIs using Python and FastAPI, with end-to-end ownership of features. You will contribute to microservices architecture and asynchronous processing solutions. 🗂️ Requirements: Minimum 5 years of commercial experience, Strong experience with Python, Strong experience with FastAPI, Experience building backend systems and APIs, Experience with RESTful services, Experience with microservices architecture, Experience with messaging or queue systems, Hands-on experience in production environments, Ability to work independently, Ability to manage tasks end-to-end 📃 Skills: Python, FastAPI, REST, Microservices, API, Queues, Messaging, Async, Backend 🏢 Description: Location: 100% Remote (candidates must be located in Poland) Start Date: ASAP /  2 weeks Contract Type: B2B via Experis About the Role We are looking for an experienced Python Backend Developer to join our team and contribute to building and maintaining scalable backend systems. You will work on production-grade solutions and take ownership of features end-to-end. Key Responsibilities Design and develop backend services using Python and FastAPI Build and maintain REST APIs and microservices architectures Work with queues and asynchronous processing Support and improve production systems Take ownership of tasks from concept to delivery (end-to-end) Collaborate with cross-functional teams in a fully remote setup Requirements Minimum 5 years of experience Strong experience with Python and FastAPI (mandatory) Proven track record in building backend systems and APIs Experience with RESTful services, microservices, and messaging/queue systems Hands-on experience working on production environments Ability to work independently and manage tasks end-to-end Strong problem-solving and communication skills What We Offer Access to Medicover healthcare Multisport card E-learning platform access Group life insurance

🏢 Summary: The offer is for a Senior Python Developer to design and build scalable, cloud-native microservices using Python and Google Cloud Platform. The role focuses on developing, deploying, and maintaining containerized applications, optimizing performance, and contributing to architecture decisions in a global product environment. It includes responsibility for CI/CD pipelines, system reliability, and production monitoring. 🗂️ Requirements: Proven commercial experience with Python in microservices development, Strong knowledge of Docker and Kubernetes, Hands-on experience with Google Cloud Platform (Cloud Run or Cloud Functions), Experience building and integrating RESTful APIs, Knowledge of SQL and NoSQL databases, Experience with Git and collaborative workflows, Experience with CI/CD tools and practices, Ability to monitor and troubleshoot production systems 📃 Skills: Python, GCP, CloudRun, CloudFunctions, Docker, Kubernetes, REST, SQL, NoSQL, Git, CI/CD, Flask, FastAPI, Django, Terraform, Jenkins, Prometheus, Grafana, Stackdriver 🏢 Description: 🚀 Senior Python Developer Join us to build scalable, cloud-native backend systems powered by Python and Google Cloud Platform (GCP) . We are looking for a Senior Engineer who thrives in a microservices environment and wants to have real impact on global product rollouts and architecture decisions. 🧩 Your Responsibilities Design, develop, and maintain scalable and secure Python-based microservices Deploy and manage containerized applications using GCP Cloud Run Collaborate with product and engineering teams to design and deliver new features Optimize applications for performance, scalability, and reliability Build and maintain CI/CD pipelines for automated testing and deployment Monitor and troubleshoot production systems to ensure high availability Write clean, maintainable code following best engineering practices Continuously improve systems by adopting modern technologies and approaches ✅ Requirements Proven commercial experience with Python, especially in microservices development Strong understanding of Docker and Kubernetes Hands-on experience with Google Cloud Platform (Cloud Run, Cloud Functions, or similar services) Experience building and integrating RESTful APIs Knowledge of SQL and NoSQL databases and data modeling concepts Experience with Git and collaborative development workflows Experience with CI/CD tools and practices Strong problem-solving skills and ability to work independently and in a team Good communication skills in English ⭐ Nice to Have Experience with Python frameworks such as Flask, FastAPI, or Django Understanding of DevOps practices and infrastructure automation (Terraform, Jenkins) Experience with monitoring and observability tools (Prometheus, Grafana, Stackdriver) Experience working in cloud-native environments

🏢 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: Senior Python Developer role focused on building and scaling high-throughput backend services for logistics and routing operations in the eCommerce industry. The position involves developing cloud-native microservices, working with geospatial and routing algorithms, and optimizing logistics efficiency using modern data and infrastructure technologies. The offer includes remote or hybrid B2B cooperation and access to additional benefits. 🗂️ Requirements: 4+ years of commercial backend development experience with Python, Experience with SQL, Knowledge of logistics domain, network analysis, and routing algorithms, Experience with geospatial data concepts and tools, Familiarity with Google Cloud Platform, Experience with Kubernetes, Experience with Terraform, Knowledge of Airflow, Understanding of microservices architecture, Knowledge of TDD and CI/CD practices, Experience with code reviews and clean code standards, Polish at native level, English at B2+ level, Higher technical education in Computer Science or related field 📃 Skills: Python, SQL, BigQuery, Dataflow, Composer, Airflow, Kubernetes, Terraform, CI/CD, Microservices, PostGIS, H3, GCP 🏢 Description: For our client, a leading player in the eCommerce industry, we are seeking a Senior Python Developer to join a talented engineering team. In this role, you'll contribute to the development of scalable backend solutions, collaborate with cross-functional teams, and have a real impact on the company's products and technology. RESPONSIBILITIES We are looking for support of Senior Software Engineer specializing in Python and routing algorithms. The specialist will be responsible for supporting the design and scaling of high-throughput services that power our first and last-mile operations. By leveraging network analysis and spatial optimization, the specialist will assist in building the next generation and directly enhancing our logistics efficiency. Stack: We are bypassing traditional, legacy GIS software in favor of cloud-native Python architectures, Big Data solutions, and modern routing APIs. Current Technology Stack used in Project: Backend & Routing: Python, Microservices, Open-source & Commercial Routing Engines. Data & Cloud: Google Cloud Platform (BigQuery, Dataflow, Composer/Airflow), SQL. Infrastructure: Kubernetes,Terraform, CI/CD pipelines REQUIREMENTS Have at least 4 years of commercial experience in backend software development using Python and SQL. Possess experience or a strong understanding of the logistics domain, network analysis, and routing (e.g., graph theory, road network modeling, Vehicle Routing Problems) Have experience with geospatial data concepts applied via code (e.g., H3/spatial indexing, clustering algorithms, PostGIS). Be familiar with cloud ecosystems (Google Cloud Platform preferred) and modern infrastructure tools (Kubernetes, Terraform, Airflow). Advocate for engineering excellence, including clean code, TDD, CI/CD, and a strong commitment to rigorous code reviews to maintain team architectural stability. Know how to design and scale a microservices-based architecture. Knowledge of Polish (native level), English (B2+ level) Have a positive attitude, excellent teamwork skills, and a higher technical education (Computer Science or related fields). NICE TO HAVE WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 140-160 PLN/hour remote work / Hybrid work from Warsaw (1 time per month) The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care,  Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.

🏢 Summary: Full-time B2B contract for a Senior Python Engineer to design and operate scalable, production-grade backend systems in a cloud-native environment within the energy trading domain. The role focuses on building modern services with Python and FastAPI, developing CI/CD pipelines, and supporting data engineering solutions. The project runs until the end of 2026 with possible extension and requires close collaboration with cross-functional teams. 🗂️ Requirements: Strong Python development experience, Hands-on experience with FastAPI, Proven cloud-native engineering experience, Strong knowledge of Kubernetes, Strong knowledge of Docker, Experience with CI/CD pipelines, Experience with Azure DevOps, Data engineering experience, Strong SQL skills, Experience with Snowflake, Experience with Kafka, Experience with business-critical systems 📃 Skills: Python, FastAPI, Kubernetes, Docker, AzureDevOps, CICD, SQL, Snowflake, Kafka, CloudNative, DataEngineering 🏢 Description: 🌍 Remote work: 100% remote. ⏰ Start: 22.06.2026. ⏳ Project length: until 31.12.2026 + possible extensions. 📑 Assignment type: B2B , 160–190 PLN/h, depending on experience and project fit. 📕 Project language: English. ⚙️ Recruitment process: 2 meetings with the client. 💬 Workload: Full-time. 💼 Industry: Cloud Computing / Energy Trading. About the Role: We are looking for a Senior Python Engineer with strong experience in cloud-native platforms and, ideally, exposure to energy trading, ETRM, or risk management systems . The ideal candidate is a hands-on engineer who can work independently, collaborate effectively with architects, product managers, and business stakeholders, and design, develop, and operate scalable, production-grade solutions in a modern cloud-native environment. Main Responsibilities: Design, develop, and maintain scalable, production-grade applications in a cloud-native environment Collaborate with architects, product managers, and business stakeholders to define and refine technical solutions. Build and operate modern backend services using Python and FastAPI . Develop and maintain CI/CD pipelines and deployment processes. Design and support data engineering solutions and integrations. Ensure reliability, performance, and maintainability of business-critical systems. Contribute to architecture decisions and technical best practices. Key Requirements: Strong Python development experience. Hands-on experience with FastAPI and modern backend development. Proven cloud-native engineerin g experience. Strong knowledge of Kubernetes and Docker . Experience with CI/CD pipelines and Azure DevOps. Data engineering experience. Strong SQL skills . Experience with Snowflake and Kafka . Experience working with business-critical systems. Strong analytical and problem-solving skills. Ability to work independently while collaborating effectively with cross-functional stakeholders. Highly Preferred Experience in energy trading environments. Experience with ETRM (Energy Trading and Risk Management) platforms . Experience with risk management systems . Team & Environment Independent engineering role with close collaboration across architecture, product, and business teams Modern cloud-native environment International project with English-speaking stakeholders and teams