Prompt Engineer | Krakow | Hybrid | Ongoing Contract
We are seeking an experienced Prompt Engineer to join an innovative team working on production-grade Large Language Model (LLM) projects. This is an ongoing contract role with strong potential for extensions and a negotiable B2B contract rate. The position is hybrid, with three days per week required in the Krakow office.
What you’ll do:
- Design, build, and deploy effective prompts for real-world LLM applications (ideally with experience on at least two production projects).
- Develop and refine prompt structures and contexts to ensure high-quality, consistent outputs.
- Work daily with Python, using LLM APIs, prompt engineering frameworks, and data tools like Pandas.
- Implement fine-tuning and/or Retrieval-Augmented Generation (RAG) pipelines to improve model performance.
- Evaluate prompts using established tools and metrics (BLEU, ROUGE, semantic similarity) and incorporate human feedback loops.
- Address LLM security concerns such as prompt injection, output filtering, and API constraints.
- Collaborate closely with stakeholders to translate complex requirements into actionable prompt logic.
What we’re looking for:
- Ideally 10 years experience in IT , with proven hands-on work in LLMs and prompt engineering (for the past 2-3 years since inception)
- Strong understanding of prompt design, security best practices, and output structuring.
- Proficiency in Python, with experience integrating LLM APIs and frameworks.
- Analytical mindset with an eye for both high-level solution design and detailed output validation.
- Excellent communication skills, with the ability to explain complex AI logic clearly.
- Desirable: experience with vector databases, LangChain, LlamaIndex, or OCR/NLP/IDP pipelines.
Contract details:
- Ongoing contract with strong potential for extensions
- Negotiable B2B contract rate
- Krakow-based, with three days per week in the office (hybrid working)
If you want to be part of a team delivering practical, production-grade AI solutions, we’d like to hear from you.
Apply now to help shape the future of AI.
