About this role

Senior AI Engineer – finance industry (f/m/x) Sii Polska Daily tasks: - Design and develop solutions based on LLMs, RAG, and agent-based architectures - Co-create and execute an AI strategy for a modern banking platform - Select models, frameworks, and approaches for production-grade AI solutions - Build systems for data integration, transformation, and validation automation - Define prompt engineering, model evaluation, and AI quality standards - Develop monitoring, evaluation, and continuous improvement mechanisms - Collaborate with engineering and product teams on new features - Ensure high quality, transparency, and auditability of AI outputs - Contribute to key architectural decisions and AI direction - Mentor and share knowledge within the AI team Musts: LLM, Python, GenAI, RAG, Genetic AI, LangChain, AWS, Azure, MLops, VectorDatabases At least 3 years in AI/ML and a minimum of 5 years in product development Strong Python skills Hands-on experience with LLMs, RAG, and agent-based systems in production Familiarity with frameworks such as Agno, LangChain, LlamaIndex, or similar Knowledge of prompt engineering and AI model evaluation Experience with Azure or AWS Understanding of vector databases and embeddings Experience with workflow orchestration tools (e.g., Temporal, Prefect, Airflow) Ability to design scalable, reliable AI solutions Experience in model monitoring and MLOps practices Capability to make architectural decisions and assess the business value of AI Strong collaboration skills with technical and business stakeholders Fluent English Nice-to-have requirements Previous work in financial services, fintech, or other regulated industries Knowledge of compliance, auditability, and AI security Familiarity with MLOps and large-scale ML/LLM deployments Experience fine-tuning open-source models for specific domains Proven track record in developing AI solutions for data platforms, analytics, or SaaS products Background in AI R&D projects Publications, conference speaking, or open-source contributions Experience building and scaling technical teams We are looking for an experienced Senior AI Engineer to join a newly formed AI team delivering a strategic initiative in the banking sector.

This is a unique opportunity to co-create a modern AI-native platform from scratch and influence the direction of AI within the organisation. In this role, you will design and develop solutions based on LLMs, RAG systems, and agent-based architectures to support data integration and transformation processes. You will contribute to key decisions around AI strategy, model selection, architecture, and quality standards. We are seeking a candidate with strong technical skills and hands-on experience in building production-grade AI solutions—someone who understands where AI brings real business value and can deliver high-quality, transparent, and secure solutions in a financial environment.

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