Senior AI Engineer - finance industry (f/m/x)

Senior AI Engineer – finance industry (f/m/x)

Miejsce pracy: Kraków

Technologies we use

Expected

• Python
• LLM
• GenAI
• RAG
• Agentic AI
• Agno
• LangChain
• LlamaIndex
• Prompt Engineering
• AI Evaluation Frameworks
• Microsoft Azure
• AWS
• Prefect
• Apache Airflow
• MLOps
• Model Monitoring (MLOps)
• Model Drift Detection
• AI Coding Assistants

About the project

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.

Your responsibilities

• 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

Our requirements

• 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

Optional

• 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

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

Recruitment stages

• Send your CV
• Talk to us about your expectations
• Learn more about our projects and choose the best
• Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.