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

Open 33d posting dated 3 weeks ago
This position is no longer accepting applications(closed Jul 24, 2026).

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 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

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

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

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

  • 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

If you want to work on systems with high operational significance — apply now!

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