Senior AI Engineer

Type of contract: Employment contract

Salary range: 15 870–24 330 PLN gross/m

What will you do?

You will join a team of engineers developing cutting‑edge AI and Machine Learning solutions within the Credit & Lending domain in an international banking environment. The project focuses on leveraging state‑of‑the‑art AI technologies to build scalable systems that support business processes, data‑driven decision‑making, and operational efficiency. You will work across the full lifecycle of AI/ML development—from discovery and prototyping, through model and system design, to production deployment and maintenance—using LLMs, RAG, modern data platforms, containerized environments, and cloud‑native solutions in Azure or GCP.

Your tasks

LLM engineering and RAG development

Designing, testing, and optimizing prompts for LLM‑based applications

Developing and integrating RAG systems and vector search solutions

Implementing responsible AI/ML solutions with fairness, transparency, and accountability

Designing and building scalable architectures leveraging LLMs and ML

Deploying AI systems using Azure or GCP with containerization and Kubernetes

Building applications following engineering best practices and clean code principles

Conducting data exploration, preparation, and modeling

Collaborating with domain experts on data pipelines and domain‑specific datasets

Applying deep learning and NLP techniques to business problems

Working closely with engineering, product, and business stakeholders

Presenting technical solutions, constraints, risks, and recommendations

Participating in the full AI product lifecycle from idea to production

Your skills

Python (3+ years); Java is a plus

Experience with LangChain, FastAPI, Data containers, Spring

Knowledge of microservices architecture, observability, monitoring, API design, concurrency models

Hands‑on experience with Azure or GCP, containers, Kubernetes, CI/CD (Jenkins, Azure DevOps, GCP Cloud Build)

Practical experience with TDD/BDD

Strong understanding of LLM architectures and domain‑specific data modeling

Experience with RAG, prompt engineering, agentic architectures, deep learning, NLP, ML lifecycle

Ability to design, develop, and scale AI‑driven systems

Strong software engineering fundamentals and problem‑solving skills

Ability to experiment quickly and iterate toward production‑quality solutions

Strong communication and presentation skills in English

Ability to explain technical solutions and business implications clearly

Comfort working with cross‑functional and multicultural teams

We offer

Hybrid work in our client's office (Kraków) 2 days per week.

Working in a highly experienced and dedicated team

Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)

Online training and certifications

Access to e‑learning platform

Social events

GDPR clause

Based on Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such a data and repealing Directive 95 /46/EC (known as a “GDPR”), I hereby give consent to GFT Poland Sp. z o.o. (90-118 Łódź, ul. Kilińskiego 66) to process my personal data for the purpose of: a) ongoing recruitment process for the position I am applying; b) recruitment processes organized in the future.