Senior Python Engineer

Salary range: B2B - 44-48 E/h + VAT 💰

Ciklum is looking for a Senior Python Engineer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:

As a Senior Python Engineer, become a part of a cross-functional development team working for a world-leading professional services organization that specializes in audit, tax, consulting, and advisory services. Your work will involve developing innovative software products for clients in the consumer sector.

Responsibilities:

• Implement and maintain robust, scalable, and secure APIs and backend systems using Python

• Facilitate the integration of front-end components with server-side logic

• Leverage automation tools like GitHub Copilot and ChatGPT to implement new features efficiently

• Utilize Docker for containerization and deployment of applications

• Collaborate with frontend engineers, DevOps, data scientists and product managers to define, design, and ship new features

• Optimize applications for maximum speed and scalability

• Troubleshoot and debug issues across the full stack

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or a related field

• 3 to 4 years of professional experience in backend development

• Backend engineering with Python (3.x) and FastAPI (or Flask); design, build, and operate REST services

• Secure, zero-trust REST APIs (least privilege, JWT/OAuth2/OIDC, mTLS, rate limiting, secrets management)

• Docker for containerization and JFrog Artifactory for image/package management

• Test-driven development with pytest (fixtures, mocks, coverage) and automated test execution

• GitHub (PRs, code reviews, branching, version control) and Jira for issue/roadmap tracking

• Data stores: PostgreSQL (schema design, queries, migrations) and Redis for caching

• Kubernetes-based architectures: deploy/operate containerized workloads

• Cloud-based development across AWS, Azure, and GCP

• Data handling/transfer using common file formats, including CSV and Parquet

• Development tooling: linters, pre-commit hooks, Black, Pylint, and Pydantic for data validation

Desirable:

• Strong CI/CD experience; GitHub Actions/workflows

• Practical automation with GitHub Copilot and ChatGPT to accelerate high-quality delivery

• Code quality & supply-chain tools: SonarQube and Mend

• Container orchestration/platform tooling and broader pipelines & DevOps practices

• Frontend familiarity: React, TypeScript, and collaboration in Figma

Personal skills:

• Good problem-solving skills and attention to detail

• Strong communication and collaboration skills

What`s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment

• Growth focus: Take on large-scale projects with a global impact and expand your expertise

• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications

• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

• Flexibility: Enjoy flexibility – full remote working possibilities

• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About us:

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

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Explore, empower, engineer with Ciklum!

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.