Job
Description
Back-End Engineer – Go + PostgreSQL (Contract) Core Skills (“Must-Have”) Golang expertise Idiomatic Go 1.21+, goroutines / channels, std-lib HTTP & sql packages, context-aware code Relational-data mastery Hands-on with PostgreSQL 13+ — schema design, indexes, migrations (Flyway, Goose, or pg-migrate) Comfortable writing performant SQL and debugging query plans API craftsmanship Design and version REST/JSON (or gRPC) endpoints; enforce contract tests and backward compatibility Quality & Dev-Ops hygiene Unit + integration tests (Go test / Testcontainers), GitHub Actions or similar CI, Docker-ised local setup Observability hooks (Prometheus metrics, structured logging, Sentry) Collaboration fluency Pair daily with React front-end & designers; discuss payloads, edge cases, and rollout plans up front Day-to-Day Responsibilities Ship incremental data-model and API updates — e.g., add a column with default values, write safe up/down migrations, expose the field in existing endpoints, and coordinate UI changes Design small new features such as derived “metric-health” tables or aggregated views that power dashboards Guard performance & reliability — run load tests, add indexes, set query timeouts, and handle graceful fallbacks behind feature flags Keep codebase clean — review PRs, refactor shared helpers, and prune dead code as product evolves Nice-to-Have Extras Production experience with a feature-flag SDK (LaunchDarkly, Split, etc.) to stage database changes safely Familiarity with event streaming (Kafka / NATS) or background job runners (Go workers, Sidekiq-like queues) Exposure to container orchestration (Kubernetes, ECS) and infrastructure-as-code (Terraform, Pulumi) Sample Mini-Projects You Might Tackle Scenario: Add property to existing entity Write migration to add source_type column to metrics, backfill with default, update GET/POST /metrics handlers & swagger docs, unit-test both happy & error paths Scenario: New aggregated view Create new table metric_health that rolls up pass/fail counts per metric, expose /metrics/{id}/health endpoint returning red/amber/green status with pagination, instrument with Prometheus counters Show more Show less
