QA & Backend Engineer: JS, Go/Golang & Microservices

## About the role We're building infrastructure that takes AI systems from dev → staging → production: reliable deployments, service orchestration, observability, secure multi-tenant APIs, and scalable messaging/data pipelines. This is real production infrastructure, not demo systems. ## Responsibilities ### Backend QA / SDET (Primary – ~60%) Own quality strategy for Go microservices and platform components. Design and implement automated test frameworks in Go: - Unit, integration, contract, and end-to-end tests - Async and event-driven workflows (Kafka, NATS) Build test harnesses for: - gRPC and HTTP APIs - Multi-service workflows - Eventual consistency, retries, and failure scenarios Validate data correctness and consistency across: - Postgres (migrations, indexes, transactional behavior) - Redis (caching, rate limiting, queues) - Messaging systems (ordering, retries, DLQs) Test and harden production behaviors: - Timeouts, retries, idempotency - Backpressure and recovery - Concurrency and race conditions - Add tests from incident retrospectives to prevent regressions Partner with CI/CD to: - Enforce quality gates - Reduce flaky tests - Improve signal-to-noise in failures ### Backend Go Engineering (Secondary – ~40%) Build and maintain Go microservices powering the platform (control-plane and data-plane services). Design service-to-service communication using: - gRPC - HTTP - event-driven patterns Implement features with testability and observability as first-class concerns. Optimize performance and reliability for: - Postgres queries, indexing, and migrations - Redis usage patterns Ship services on Kubernetes: - Docker images - Deployment configs - Safe rollouts and operational readiness Implement platform fundamentals when needed: - authN / authZ - RBAC concepts - multi-tenant isolation and boundaries ### Frontend QA / Engineering (React.js) Frontend work here is engineering-grade and directly impacts platform reliability and security. ### Frontend QA / Automation Own frontend quality strategy for React applications and embedded widgets. Design and implement automated frontend test suites: - Component tests - Integration tests - End-to-end tests (API-driven, not brittle UI-only flows) Validate frontend ## Requirements - Strong Golang skills are mandatory. - This is not a manual QA role. You will write production-grade Go code. - Frontend work is also engineering + automation, not manual UI testing. ## What we're looking for We're looking for engineers who think like quality-first system builders: - Take a goal → design testable systems → ship → validate → iterate. - You communicate clearly async, proactively improve reliability, correctness, performance, and reduce production risk. ## Tech Stack - Go - JavaScript - React.js - Postgres - Kafka - NATS - Redis - Kubernetes - Docker - gRPC - HTTP