B2B Prompt engineer (Cracow/Hybrid)

Role:B2B Prompt engineer
Location - Krakow (hybrid)
Contract - B2B

I'm currently recruiting for a client based in Krakow who are looking for a B2B Prompt engineer.

Key Responsibilities:
Design, deploy, and optimise prompts for real-world LLM applications (minimum 2 production-grade projects).
Collaborate with cross-functional teams to translate complex document requirements into actionable prompt logic.
Implement and maintain fine-tuning or RAG pipelines.
Evaluate prompt performance using metrics like BLEU, ROUGE and semantic similarity.

Skills & Qualifications:
Proven experience in prompt engineering with LLMs (2+ production projects).
Strong Python proficiency, including LLM APIs and data tools (e.g., Pandas).
Deep understanding of prompt structure and context.
Experience with fine-tuning or retrieval-augmented generation (RAG).
Familiarity with evaluation metrics and human-in-the-loop validation.
Awareness of LLM-related security concerns.
Excellent communication and analytical skills.

This is a 12 months B2B contract with a possible extension.

Location - Krakow (hybrid 3 days in office requirement)

Hourly rate up to 220 PLN.

(Only candidates based in Poland and eligible for B2B can be considered. Visa sponsorship is not available for this role.)