Senior Python Consultant with AI/ML skills
Summary
Senior Python engineer designs and builds AI/ML systems for credit and lending using LLMs, RAG, and vector databases, mentoring teams and collaborating with stakeholders in Kraków.
Type of contract: B2B contract
Salary range: 140-170 PLN/H
What will you do?
You will work as part of a dedicated engineering team delivering flagship AI and ML solutions for the Credit and Lending domain, leading the design and development of scalable, production-ready systems based on modern LLM and RAG approaches while closely collaborating with business stakeholders to translate complex financial requirements into high-impact technical solutions.
Your tasks
- Write and maintain high-quality, testable, and reusable code
- Lead the design of scalable and robust AI and ML solutions aligned with platform strategy
- Own end-to-end engineering delivery from design through deployment
- Mentor engineers and support their technical growth
- Define and promote coding standards and AI best practices
- Evaluate and prototype new technologies including RAG techniques and LLM optimization
- Collaborate with stakeholders to translate business needs into technical solutions
- Design and implement solutions using RAG and vector databases for financial data
Requirements
- 4+ years of hands-on experience working with Python and its AI and ML ecosystem
- Proven experience in a senior engineering role with ownership of technical initiatives
- Strong knowledge of LLM architectures and experience fine-tuning models
- Hands-on experience with Retrieval-Augmented Generation and prompt engineering
- Experience designing agentic architectures and AI-driven systems
- Strong understanding of machine learning, deep learning, and NLP concepts
- Experience with microservices architecture, API design, and concurrency models
- Practical knowledge of relational databases such as PostgreSQL
- Experience working with vector databases, Redis or similar KV stores, and Pub/Sub systems
- Experience with Azure or GCP, containers, Kubernetes, and CI/CD tools
- Strong commitment to engineering best practices including TDD and BDD
- Excellent communication skills in English
- Openness to work hybrid from our client's office (Kraków) 8 days per month
Nice to have
- Experience with Java for integration or middleware tasks
- Experience in financial services or credit and lending domain
- Experience building observability solutions for distributed systems