[Hiring] Senior QA Engineer @Social Links LLC

Role Description

We are looking for a hands-on Senior QA Engineer building test infrastructure and evaluation frameworks from scratch for a distributed AI platform. Primary focus: testing non-deterministic AI agent outputs, RAG pipeline quality, multi-tenant data isolation, and cross-service integration.

• Build and maintain AI evaluation framework
• Test RAG pipeline quality and retrieval relevance
• Design testing approaches for non-deterministic LLM outputs
• Build multi-tenant isolation test suite, including AI layer isolation
• Write cross-service integration and contract tests
• Test Temporal workflows, event-driven flows, and YAML DSL validation
• Build and maintain automated regression suites

Qualifications

• 3+ years in QA automation / SDET
• Hands-on experience testing AI/ML systems
• Strong Python (pytest, async testing)
• Experience building test infrastructure from scratch
• Experience testing distributed or event-driven systems
• Experience testing multi-tenant applications
• Autonomous work style
• English – B1 level or higher

Requirements

• RAG / vector search quality evaluation
• LangGraph, LangChain, or similar agent frameworks
• Go test automation
• BentoML / MLflow or equivalent MLOps tooling
• Security testing: prompt injection, context leakage
• Performance / load testing for ML inference endpoints
• Data pipeline testing (Delta Lake, Great Expectations, Dagster)
• Russian – advanced level or higher

Benefits

• Remote-first setup: work from anywhere in the world (except Russia and Belarus)
• Work on a greenfield, technically challenging product (distributed system at scale)
• Direct collaboration with senior technical stakeholders (engineering leadership, product)
• Ownership and impact: influence QA strategy, tooling, and quality gates from the early stage of the product
• Fast iteration environment: work closely with engineering to improve reliability and release confidence