Prompt Engineer

AI/ML

Krakow, Poland, Kraków

INFOPLUS TECHNOLOGIES

1 600 - 1 700PLN

Net per day - B2B

Full-time

B2B

Senior

Hybrid

Tech stack

prompt engineer

advanced

Python

advanced

LLM APIs

advanced

Langchain

nice to have

LlamaIndex

nice to have

Job description

• Job Title: Prompt Engineer

• Location: Krakow, Poland (3 days onsite)

• Duration: Contract (B2B)

Job Description:

Skill Area:

• Prompt Engineering Experience : Proven experience (2+ #LLM production projects) designing and deploying prompts in real-world applications.

• Prompt Design Expertise: Excellent understanding of prompts structure, contexts

• Python Proficiency: Proficiency in #Python, including experience with LLM APIs, prompt engineering frameworks, and data manipulation tools (e.g. Pandas).

• Advanced LLM Techniques: Experience with at least one fine-tuning or #RAG pipeline implementation.

• Evaluation & Validation: Familiarity with prompt evaluation tools, metrics (e.g., BLEU, ROUGE, semantic similarity), and human-in-the-loop validation.

• Security Awareness: Understanding of LLM-related security concerns, such as prompt injection, output filtering, and API limitations, output structuring

• Communication Skills: Excellent communication skills and ability to translate complex document requirements into actionable prompt logic.

• Analytical Thinking: Strong analytical mindset with attention to both high-level design and low-level output consistency.

• Vector DB & RAG Experience: Experience with vector databases and RAG

• Tool Exposure: Exposure to LangChain, LlamaIndex, or similar

• Document Processing: Prior work with OCR, NLP, or IDP pipelines

MUST HAVE JD SKILLS as below:

• Proven experience (2+ LLM production projects) designing and deploying prompts in real-world applications.

• Excellent understanding of prompts structure, contexts

• Proficiency in Python, including experience with LLM APIs, prompt engineering frameworks, and data manipulation tools (e.g. Pandas).

• Experience with at least one fine-tuning or RAG pipeline implementation.

• Familiarity with prompt evaluation tools, metrics (e.g., BLEU, ROUGE, semantic similarity), and human-in-the-loop validation.

• Understanding of LLM-related security concerns, such as prompt injection, output filtering, and API limitations, output struturing

• Excellent communication skills and ability to translate complex document requirements into actionable prompt logic.

• Strong analytical mindset with attention to both high-level design and low-level output consistency.

GOOD TO HAVE JD SKILLS as below

• Experience with vector databases and retrieval-augmented generation.

• Exposure to tools like LangChain, LlamaIndex, or similar.

• Prior work with OCR, NLP, or intelligent document processing (IDP) pipelines.

Published: 16.08.2025

Office location