Expert Python Engineer

Ciklum is looking for an Expert 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 an Expert Python Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Position Overview: Act as the primary architectural authority for the AS Copilot RAG pipeline upgrade Lead the overall strategy for tuning re-rankers, grounding, and citation efforts, while providing high-level supervision to the engineering team Design the overarching architecture for custom "Code-RAG" development, specifically focusing on AST-aware semantic chunking for industrial automation code Ensure all AI components are architected to be delivered securely as Python source code directly into the client’s Azure DevOps environment Responsibilities: Pipeline Strategy & Evaluation: Oversee comprehensive RAG pipeline audits, establish critical baseline KPIs, and dictate robust evaluation frameworks using tools like RAGAS Advanced Retrieval Architecture: Define the approach to tune cross-encoder rerankers on Azure ML and design the architecture for multi-turn grounding and claim-level citation frameworks Code-RAG Leadership: Architect custom tokenization and semantic chunking strategies for IEC 61131-3 structured text, avoiding generic tokenizers that destroy function block semantics Engineering Oversight: Ensure the delivery of clean, production-grade Python code, oversee architectural code reviews, and provide high-level technical direction to senior and mid-level implementation engineers Client Collaboration: Work directly within the client's SAFe cadence, driving joint architectural decisions and ensuring continuous knowledge transfer Requirements: Background: Strong background in Computer Science, Machine Learning, Data Science, or a related technical field at an architectural level AI/NLP Expertise: Deep, practical experience and architectural mastery over Large Language Models (LLMs) and advanced Retrieval-Augmented Generation (RAG) architectures Technical Stack: Highly proficient in Python. Expert-level experience designing systems with PostgreSQL, pgvector, and hybrid search strategies (BM25 + dense) is required Cloud & MLOps: Hands-on, architectural-level experience with the Azure ecosystem, specifically Azure OpenAI, Azure Machine Learning, and Azure DevOps Evaluation Frameworks: Deep familiarity with LLM evaluation methodologies and tools like RAGAS, DeepEval, or custom Python test harnesses Code Parsing: Extensive exposure to Abstract Syntax Trees (AST) or custom grammar parsing for code-generation use cases is highly desirable Soft Skills: Effective problem-solving mindset, capable of high-level client-facing technical leadership, and comfortable working in an embedded, co-delivery partnership 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. #LI-AD1