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September 21, 2026

Junior AI Tester / Prompt Engineer

Junior • On-site

1,393,600 - 1,393,600 USD/yr

Warsaw, Poland

Quick Facts

  • Role: Junior AI Tester / Prompt Engineer

  • Focus: Testing and optimizing AI/LLM-based solutions

Description

You will test AI tools and chatbots and improve the quality of generated responses from AI models. The role includes designing, writing, and optimizing prompts for LLMs, creating AI-focused test scenarios, and evaluating response quality and correctness. You will collaborate with developers and data scientists to enhance AI solution effectiveness and take part in CI/CD processes.

Responsibilities

  • Test AI tools and chatbots

  • Design, write, and optimize prompts for AI models and LLMs

  • Create test scenarios for AI-based solutions

  • Evaluate quality, relevance, and correctness of AI-generated responses

  • Analyze test results, identify defects, and prepare test reports

  • Collaborate with development and data science teams to improve AI solutions

  • Participate in CI/CD processes

  • Develop tools supporting AI testing and prompt optimization

Requirements

  • Experience as a tester, particularly with AI-based solutions

  • Experience designing, writing, and optimizing prompts for language models (LLMs)

  • Practical knowledge of test tools such as Selenium or PyTest

  • Experience testing APIs and web applications

  • Knowledge of HTML and CSS

  • Knowledge of the HTTP protocol

  • Knowledge of REST and SOAP

  • Practical experience with Jira

  • Analytical approach, accuracy, creativity, and independence

Benefits

  • Long-term B2B cooperation

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