**About Us**
data² delivers trustworthy, explainable AI (eXAI) that automates critical workflows and turns complexity into clarity. Our patented, hallucination-resistant eXAI reView platform harmonizes data across your ecosystem delivering real-time actionable insights.The RoleThis role is backend and data-focused (not UI-heavy), embedded with the platform team, pairing closely with backend engineers.
**What you will do**
- Design and maintain automated tests for FastAPI services (schemas, error handling, auth flows)
- Build integration tests for critical workflows: ingestion → graph → query → result
- Integrate test suites into CI/CD pipelines and enforce quality gates
- Run load and stress tests to catch regressions in ingestion and query paths
- Use Grafana + Loki to trace failures across services and data layers
**Requirements**:
- Experience testing backend systems (APIs,



microservices)
- Production-quality Python — not just test scripts
- pytest or similar frameworks
- Experience designing integration tests across services
- Strong written and spoken English
**Preferred**
- FastAPI, Kubernetes, or distributed systems experience
- Data pipelines / ETL testing
- Graph or query-based systems (Neo4j, Memgraph, Cypher)
- Load testing tools (any)
**Job Type**: Contract
Pay: $20,000.00 - $70,000.00 per month
Application Question(s):
- How many years of verifiable work experience do you have as a QA specialist?
- What quality automation tools are you familiar with?
Work Location: Hybrid remote in Ciudad de México, CDMX

📌 QA Engineer (Ciudad de México)
🏢 Data2
📍 Ciudad de México