June 2, 2026

Senior Python Engineer

Senior • Remote

160 - 190 PLN/hr

Warsaw, Poland

🌍 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 engineering 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

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The position involves designing microservices, implementing CI/CD pipelines, optimizing cloud architectures, and collaborating with cross-functional teams in a hybrid work model. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of Python development experience, Experience with Django, Flask, or FastAPI, Commercial experience with AWS, Azure, or Google Cloud, Hands-on experience with Docker and Kubernetes, Experience with serverless frameworks, Ability to design RESTful APIs, Knowledge of MySQL, PostgreSQL, MongoDB, or DynamoDB, Understanding of Agile methodologies and Git, Experience with unit testing, Experience with CI/CD tools, Strong analytical and problem-solving skills, Ability to collaborate in team environments 📃 Skills: Python, Django, Flask, FastAPI, AWS, Azure, GCP, Docker, Kubernetes, Lambda, AzureFunctions, CloudFunctions, REST, MySQL, PostgreSQL, MongoDB, DynamoDB, Git, Jenkins, GitHubActions, AzureDevOps, CodePipeline, CI/CD, Agile 🏢 Description: We are looking for an experienced Senior Python Engineer with expertise in Cloud technologies to contribute to a strategic project for one of our key clients. As a Senior Engineer, you will create, enhance, and implement scalable, secure solutions utilizing Python and modern cloud platforms. Collaboration with cross-functional teams will be essential to deliver innovative software systems addressing complex business challenges and driving digital transformation. This role follows a hybrid work model, requiring three days per week in-office at one of our locations in Krakow, Wroclaw, Gdansk, Warsaw, Poznan, Katowice, or Lodz. Responsibilities Deliver high-quality software solutions using Python for web applications, APIs, data pipelines, AI/ML models, and automation tools Design and manage cloud-based architectures utilizing platforms like AWS, Azure, or Google Cloud Platform (GCP) Create scalable microservices and serverless applications using cloud-native tools and frameworks Optimize data pipelines and workflows using Python and cloud services such as AWS Lambda, Azure Functions, or GCP Cloud Functions Promote system reliability and scalability utilizing best coding practices, automated testing, and effective monitoring Work with product, operations, and engineering teams to define requirements, refine features, and implement solutions Set up CI/CD pipelines to enhance deployment efficiency in cloud environments Address production issues and improve system performance in cloud setups Keep up to date with Python trends, cloud advancements, and evolving tools Mentor junior team members, perform code reviews, and uphold quality standards across the team Requirements Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience 5+ years of Python development experience, with a focus on libraries such as Django, Flask, or FastAPI Commercial background in cloud platforms such as AWS, Azure, or Google Cloud and hands-on experience with related services Competency in cloud-native technologies, including Docker, Kubernetes, and serverless frameworks Skills in designing RESTful APIs and integrating third-party services Knowledge of database technologies, including relational databases like MySQL/PostgreSQL and non-relational databases like MongoDB/DynamoDB Understanding of software development best practices, Agile methodologies, Git version control, and unit testing Experience with CI/CD tools, including Jenkins, GitHub Actions, Azure DevOps, or AWS CodePipeline Strong analytical and problem-solving abilities for tackling technical challenges Effective communication skills and the ability to collaborate in team settings Nice to have Background in AI or ML technologies We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

Technology

Crestt

Senior Python Developer

Senior

Remote

Berlin, BE, Germany

160 - 210 PLN

🏢 Summary: Senior Python Developer for an international energy sector project, responsible for maintaining and modernising Python-based applications that support critical operational processes such as data processing, reporting, and load management. The role involves developing web applications, handling production issues, deploying to OpenShift, and collaborating with stakeholders in a mostly remote B2B setup. Contract runs until December 2026 with possible extension. 🗂️ Requirements: 5+ years commercial experience with Python, Strong experience with Flask, Strong experience with Dash, Strong experience with Pandas, Strong experience with NumPy, Experience processing data from SQL databases, Experience processing data from CSV files, Experience integrating multiple external data sources, At least 1 year hands-on experience with Kubernetes, At least 1 year hands-on experience with OpenShift, At least 1 year hands-on experience with Helm, Experience designing scalable and reliable systems, Understanding of performance optimisation, Understanding of data consistency, Experience working with Git, Experience working with CI/CD environments, German language skills at C1 level or higher 📃 Skills: Python, Flask, Dash, Pandas, NumPy, SQL, CSV, Kubernetes, OpenShift, Helm, Git, CI/CD 🏢 Description: Senior Python Developer (Energy Sector) | Remote + Berlin 📍 Location: 95% Remote | 5% Onsite (Berlin) 📅 Start Date: July 2026 📄 Contract until December 2026 with possible extension 💼 B2B Contract We are looking for an experienced Senior Python Developer to join an international energy sector project for one of Germany’s leading electricity transmission system operators. You will be responsible for maintaining, modernising and extending Python-based applications supporting critical operational processes, including data processing, reporting, load management and system operations. Responsibilities Develop and maintain Python web applications Analyse and resolve production issues Monitor application performance and review logs Implement new features and enhancements Troubleshoot and fix software defects Work with Git repositories, pull requests and code reviews Create and execute test cases Deploy applications to OpenShift environments Prepare technical documentation and diagrams Collaborate with business stakeholders and infrastructure teams Requirements 5+ years of commercial experience with Python Strong experience with: Flask Dash Pandas NumPy Experience processing data from: SQL databases CSV files Multiple external data sources At least 1 year of hands-on experience with: Kubernetes OpenShift Helm Charts Experience designing scalable and reliable systems Understanding of performance optimisation and data consistency Experience working with Git and CI/CD environments German language skills at C1 level or higher Nice to Have FastAPI React Energy market experience Electrical engineering knowledge Experience working directly with business stakeholders What We Offer Project in the energy sector Flexible remote work model Opportunity to work on mission-critical systems supporting energy infrastructure International environment Possibility of project extension

Technology

ITDS

Senior Python Backend Developer – Cloud & Container Experts

Senior

Remote

Warsaw, Poland

21,840 - 25,200 PLN

🏢 Summary: Senior Python Backend Developer role focused on building scalable, cloud-native backend systems using Python and FastAPI within GCP environments. The position involves designing containerized microservices, contributing to system architecture, and supporting CI/CD processes in a modern cloud ecosystem. Fully remote within Europe with collaboration on high-impact digital transformation projects. 🗂️ Requirements: Minimum 4 years of backend development experience with Python, Strong knowledge of GCP and cloud service architectures, Experience with FastAPI or similar Python frameworks, Experience with containerized environments, Solid understanding of microservices architecture, Experience designing and developing REST APIs, Proficient English (spoken and written), Legal right to work in Europe 📃 Skills: Python, FastAPI, GCP, Containers, Microservices, REST, CICD, React 🏢 Description: Ignite innovation — transform cloud-native backend solutions with Python mastery! 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. #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.

Technology

DevsData LLC

Senior Backend Engineer (Python)

Senior

Remote

Warsaw, Poland

8,000 - 12,000 USD/mo

🏢 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