Senior AI Engineer - RAG & LLM Production (Poland)

Sii Poland; Kraków; On-site; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Medical care

Centre of internal trainings

Job summary

Sii Poland in Kraków is seeking an experienced AI/ML Engineer to join a long-term project for a global banking leader. You will contribute to development of AI/ML solutions in Credit & Lending for corporate clients, collaborating with an international team and stakeholders worldwide.

The role requires strong Python, ML engineering, exposure to RAG, vector databases, microservices, cloud (Azure or GCP), CI/CD, and English communication; occasional client-site visits in Kraków about 4 times per

Qualifications

• 5+ years of experience in software or ML engineering.
• Strong Python and ML/AI ecosystem expertise.
• Relational and vector databases; Redis; Pub/Sub familiarity.
• Microservices, observability, API design, concurrency knowledge.
• LLM architectures, fine-tuning on domain data.
• Experience with RAG, prompt engineering, agentic architectures.
• ML/DL/NLP knowledge.
• Azure or GCP, containers, Kubernetes, CI/CD tools.
• TDD/BDD practice.
• Excellent English communication.
• Residence in Poland.

Responsibilities

• Write, maintain, and testable code with high quality and reusability.
• Design scalable AI/ML solutions aligned with platform vision.
• Own engineering execution for major AI projects from design to production deployment.
• Champion coding standards and AI fairness, transparency, accountability.
• Prototype and evaluate new technologies (RAG, LLM optimization, agentic architectures).
• Translate business requirements into technical solutions for stakeholders.
• Develop and deploy advanced RAG solutions and vector-based insights.

Skills

Python

ML/AI

English communication

Cloud platforms

Tools

Redis

Vector databases

Kubernetes

CI/CD tools

Jenkins

Azure DevOps

GCP Cloud Build

Job description

Sii Poland in Kraków is seeking an experienced AI/ML Engineer to join a long-term project for a global banking leader. You will contribute to development of AI/ML solutions in Credit & Lending for corporate clients, collaborating with an international team and stakeholders worldwide.

The role requires strong Python, ML engineering, exposure to RAG, vector databases, microservices, cloud (Azure or GCP), CI/CD, and English communication; occasional client-site visits in Kraków about 4 times per