Senior AI Engineer (f/m/x)

Technologies we use

About the project

Your responsibilities

• Write and maintain exemplary, high-quality, testable, and reusable code
• Lead the design of AI/ML solutions, ensuring they are scalable, robust, and aligned with the platform's vision
• Own the engineering execution for significant parts of our AI flagship projects, from technical design through to production deployment
• Co-author and champion coding standards and AI best practices to ensure fairness, transparency, and accountability across our models
• Co-drive technical strategy by evaluating and prototyping new technologies, such as advanced RAG techniques, LLM optimization, and agentic architectures
• Collaborate extensively with stakeholders across the AI Programmes, translating business requirements into technical solutions and communicating complex ideas to diverse audiences
• Develop and implement sophisticated solutions using Retrieval-Augmented Generation (RAG) and vector databases to unlock insights from complex financial data

Our requirements

• Minimum 5 years of experience in software or ML engineering
• Deep expertise in Python and its ML/AI ecosystem
• Familiarity with relational databases, vector databases, KV stores (Redis), and Pub/Sub
• Strong command of microservices architecture, observability, API design, and concurrency models
• Expert-level understanding of LLM architectures and extensive experience fine-tuning models on domain-specific data
• Hands-on mastery of Retrieval-Augmented Generation (RAG), advanced prompt engineering, and designing agentic architectures
• In-depth knowledge of machine learning, deep learning, and NLP
• Proficiency with Azure or GCP, containers, Kubernetes, and CI/CD tools, e.g., Jenkins, Azure DevOps, GCP Cloud Build
• Practical experience in TDD and BDD
• Exceptional presentation and communication skills in English
• Residing in Poland required

Optional

• Leadership or architectural experience
• Familiarity with Java for occasional middleware and integration tasks

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People