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

(Summary generated by AI based on the full job description)

The project focuses on the banking sector and involves building a modern AI-native platform based on LLMs, RAG, and agent-based architectures. Key technologies include Python, frameworks like LangChain, LlamaIndex, and cloud platforms Azure or AWS. Responsibilities include designing AI solutions, co-creating strategy, selecting models, developing integration and monitoring systems, and making architectural decisions. Knowledge of prompt engineering, MLOps, and regulated environments is required.

new

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

Company: Sii Sp. z o.o.

from: 22 June 2026
to: 22 July 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:hybrid • full office
Kraków, Podgórze
Kraków, PodgórzeWadowicka 12View on map

Requirements

Expected technologies

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

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

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
Company

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.

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

  • 1.
    Send your CV
  • 2.
    Talk to us about your expectations
  • 3.
    Learn more about our projects and choose the best
  • 4.
    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.

This is how we work

Senior AI Engineer – finance industry (f/m/x)
I apply to:
Sii Sp. z o.o.
Kraków, Podgórze
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