Senior AI Backend Engineer (Python/Java) – Hybrid

GFT TECHNOLOGIES SE; Kraków; Hybrid; PLN 214,000 - 282,000; Part time

Job summary

GFT Poland is seeking an Expert Backend Consultant (Python&Java) with AI/ML skills to design and develop production‑grade AI and GenAI solutions. You will work on LLM-based capabilities, RAG pipelines and agentic workflows, integrating with an existing Java ecosystem

and ensuring secure, scalable AI solutions for enterprise environments. The role involves hybrid work from Kraków with 6–8 days per month on-site, a B2B contract, and a competitive PLN hourly rate.

Qualifications

• 5+ years of professional software engineering experience with Python.
• Hands-on experience building AI and GenAI solutions in production.
• Practical knowledge of LLM capabilities, limitations and safe usage patterns.
• Strong experience designing and implementing RAG solutions.
• Experience with agentic or tool-using AI workflows.
• Experience with prompt engineering, evaluation and validation approaches.
• Knowledge of AI governance, security, traceability and auditability.

Responsibilities

• Design and develop production-grade AI and GenAI solutions in Python.
• Build and integrate LLM-based applications, RAG pipelines and agentic workflows.
• Develop secure APIs, microservices and integration components.
• Integrate Python-based solutions with existing Java services and enterprise platforms.
• Evaluate and validate AI-generated outputs using measurable quality criteria.
• Apply human-in-the-loop controls, traceability and auditability practices.
• Contribute to solution design and architecture discussions.
• Develop unit, integration, contract and automated evaluation tests.
• Follow secure coding standards and AI governance requirements.
• Contribute to CI/CD pipelines, quality gates and automated security checks.
• Implement logging, monitoring, metrics and tracing.
• Identify technical risks, dependencies and delivery blockers and propose mitigation approaches.
• Support releases, production readiness and incident resolution.
• Collaborate with architects, Tech Leads, QA, platform and operations teams.
• Contribute to engineering standards and continuous improvement initiatives.

Skills

Python

Java

AI/ML

LLM/GenAI

RAG pipelines

Hybrid work

Cloud Azure

CI/CD

Security awareness

Job description

GFT Poland is seeking an Expert Backend Consultant (Python&Java) with AI/ML skills to design and develop production‑grade AI and GenAI solutions. You will work on LLM-based capabilities, RAG pipelines and agentic workflows, integrating with an existing Java ecosystem

and ensuring secure, scalable AI solutions for enterprise environments. The role involves hybrid work from Kraków with 6–8 days per month on-site, a B2B contract, and a competitive PLN hourly rate.