Ciklum is looking for a 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 Python Engineer, become a part of a cross-functional development team engineering experiences of tomorrow.
Position Overview:
- Serve as the core implementation engine for either the hybrid retrieval pipeline or grounding and citation mechanisms
- Instrument the existing RAG pipeline and actively support the preparation of golden datasets
- Implement hybrid retrieval features (BM25 + pgvector), adaptive context layers, and multi-turn prompt engineering
- Ensure all AI components are delivered securely as Python source code directly into the client’s Azure DevOps environment
Responsibilities:
- Pipeline Implementation: Build and deploy hybrid retrieval mechanisms, deeply integrating pgvector and BM25 search strategies into the existing infrastructure
- Grounding & Integration: Implement robust grounding and citation modules, ensuring accurate claim-level attribution and regression testing
- Testing & Regression: Develop end-to-end integration tests and support CI/CD regression harnesses to maintain strict KPI baselines
- Collaboration: Work closely with Senior Engineers and Architects, actively participating in daily pair programming, joint backlog refinement, and sprint ceremonies
- Optimization: Write clean, modular Python code focused on maintaining strict, sub-4.5s low-latency execution (P95 targets) within an enterprise environment
Requirements:
- Background: Solid foundation in Computer Science, Machine Learning, Data Science, or a related technical field, with proven practical ML engineering experience
- Technical Stack: Highly proficient in Python. Practical, hands-on experience with vector databases (specifically PostgreSQL and pgvector) and hybrid search strategies
- AI/NLP Experience: Proven experience building and deploying Retrieval-Augmented Generation (RAG) pipelines and working closely with LLM APIs (e.g., OpenAI gpt-4o models)
- Cloud & DevOps: Familiarity with the Azure ecosystem (Azure OpenAI, Azure Machine Learning), Git version control, and CI/CD deployment pipelines
- Testing & Quality: Experience writing robust unit and integration tests (e.g., pytest). Familiarity with LLM evaluation frameworks like RAGAS is a strong plus
- Soft Skills: Proactive, collaborative team player comfortable working directly with client engineers in a fast-paced, embedded agile setup
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 premium medical package through Luxmed
- Benefits: Access the MyBenefit cafeteria platform, allowing you to choose perks that best suit your lifestyle and needs
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.
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.
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Skills Required
- Solid foundation in Computer Science, Machine Learning, Data Science, or a related technical field
- Proven practical machine learning engineering experience
- Highly proficient in Python
- Hands-on experience with PostgreSQL and pgvector
- Experience with hybrid search strategies
- Experience building and deploying Retrieval-Augmented Generation pipelines
- Experience working with LLM APIs, such as OpenAI GPT-4o models
- Familiarity with Azure, including Azure OpenAI and Azure Machine Learning
- Familiarity with Git version control and CI/CD deployment pipelines
- Experience writing unit and integration tests, such as pytest
- Familiarity with LLM evaluation frameworks such as RAGAS
- Proactive, collaborative communication with client engineers in an embedded agile environment
What We Do
Ciklum is a global Digital Solutions Company for Fortune 500 and fast-growing organisations alike around the world. The company is headquartered in London and has software development centres and branch offices in the United States, Spain, Switzerland, Denmark, Israel, Poland, Ukraine, Czech Republic, Slovakia, Romania, UAE and Pakistan. Ciklum builds tailored digital solutions that leverage emerging technologies for such clients as Just Eat, Flixbus, Metro Markets, EFG International, Zurich Insurance, Lottoland and others. For more information about us visit www.ciklum.com
