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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
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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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