About the RoleWe’re looking for a QA Tester with strong AI literacy and data validation skills to test how AI agents behave and ensure that their outputs are stored accurately and reliably in backend systems. This is a manual, exploratory testing role — ideal for someone who can combine curiosity about AI behavior with practical knowledge of data flows, relational databases, and result traceability.You won’t be writing automation scripts, but you will need to understand how AI agents operate, how their outputs are used, and how to verify correctness across both the UI and backend.What You’ll Do Manually test AI-driven workflows that generate content, complete tasks, or make decisions

Assess AI behavior by checking for:

Consistency and repeatability Hallucinations, inaccuracy, or bias Relevance and task alignment

Evaluate data integrity:

Trace AI-generated data from the interface to the backend Use SQL to validate how outputs are stored, structured, or logged Compare AI intent/output to the resulting records in the database

Reproduce and report subtle, fuzzy, or probabilistic issues with structured documentation Collaborate with engineers, AI designers, and product owners to define quality criteria across system layers Must-Have Skills 2+ years of manual QA experience, ideally in exploratory or context-driven testing environments Practical understanding of LLMs and AI tools (ChatGPT, Claude, etc.) Basic to intermediate knowledge of SQL (joins, filters, aggregations, subqueries) Experience validating data pipelines, audit logs, or relational integrity Able to detect both UI anomalies and backend data discrepancies Clear written and verbal communication for reporting behavior-based bugs Familiarity with testing non-deterministic or AI-powered systems Nice-to-Have Understanding of prompt engineering and how LLM behavior can shift with input changes Familiarity with AI agent architectures (e.g., LangChain, ReAct, RAG systems) Experience working with BI tools (e.g., Metabase, Redash) or data validation frameworks Background in content moderation, safety testing, or AI/UX evaluation We offer you:  Salary: 12 000 - 15 000 PLN net/B2B (depends on experience) Work-life balance: flexible working hours and a hybrid home office model (2 times per week in the office)  Semi-annual evaluation meetings and a clearly defined career path A friendly Buddy to guide you through the onboarding and further training and career opportunities  Training possibilities for personal development after completing the onboarding period  Space to implement your own ideas   Additional benefits such as:   Fitness card (Benefit Multisport)  Private health care (EnelMed)  An open and casual company culture filled with internal events  The opportunity to quickly develop professionally on projects in Europe and all over the world  Great integration events :)  Referral Program   How our recruitment process looks like:   Interview with recruiter (30 minutes, MS Teams) Technical interview with Team Leader and Portfolio Manager (60 minutes, MS Teams) Open Day - Meeting at our office (will last about 2 hours)  3-month trial period