Prompt Engineer

AI Engineer is needed in Krakow, Poland.

We are looking to hire a Prompt Engineer on a contract (B2B) basis for our company, Infoplus, based in Krakow, Poland. This role is hybrid, requiring onsite work for three days a week. The ideal candidate will have proven experience with prompt engineering, demonstrated by involvement in at least two LLM production projects, and a solid understanding of prompt structure and context. Strong proficiency in Python and familiarity with LLM APIs, prompt engineering frameworks, and data manipulation tools such as Pandas are essential. Candidates should have experience with at least one fine-tuning or RAG pipeline implementation, and be comfortable with prompt evaluation tools and metrics (e.g., BLEU, ROUGE, semantic similarity) as well as human-in-the-loop validation processes.

The role also requires an understanding of security considerations around LLMs, such as prompt injection and output structuring, as well as excellent communication skills for translating complex requirements into actionable prompt logic. Analytical thinking and attention to both high-level design and low-level output consistency are important. It is a plus if you have experience with vector databases, retrieval-augmented generation, tools like LangChain or LlamaIndex, and document processing workflows involving OCR, NLP, or IDP pipelines. The project needs to be started as soon as possible.

Budget range:
Up to 1500 PLN per day

In what capacity are you hiring?
For a client or customer

Where are you in the hiring process?
I’m planning and researching

What type of work is this?
Full-time position (Contract)

What experience level is needed?:
Mid-level (Industry Average)