Full Stack Engineer

Role Summary We’re Wellness Coach—a B2B wellness platform. We’re hiring a dedicated, AI-first full-stack engineer with a backend emphasis who owns features end-to-end across Node.js / TypeScript / NestJS (primary) and React / TypeScript (secondary). You’ll ship with strong CI / CD , uphold SonarQube quality gates, and drive scaling & optimization across the stack.

Responsibilities (backend-heavy) End-to-end delivery : requirement Gathering → design → estimate → implement → test → deploy → observe → iterate.

Backend (primary – Node.js / TS / NestJS) :

Design and deliver REST APIs; enforce OAuth / JWT auth, RBAC, and rate limiting.

Build high-throughput services with caching (Redis), message queues / streams (RabbitMQ / Kafka), and webhooks.

Engineer resilient, observable microservices (retries, idempotency, circuit breakers, backpressure).

Data :

Schema design & migrations ( PostgreSQL / MySQL / MongoDB ); indexing, query tuning, partitioning.

Thoughtful use of Redis for caching, locks, and ephemeral data.

Frontend (supporting – React / TS) :

Implement and maintain accessible, responsive UIs; routing / forms; pragmatic state mgmt (React Query / Zustand / Redux).

CI / CD :

Build → test → scan → SonarQube quality gate → deploy ( blue / green / canary ) with automated rollbacks.

Security & quality :

SAST / DAST, dependency health, OWASP practices, meaningful code reviews, secret hygiene.

Observability :

Logs / metrics / traces (Sentry, Grafana / Prometheus), actionable alerts & SLOs.

Scaling & optimization :

Improve throughput / latency / memory, tune Node event loop, connection pooling; SSR / Next.js perf where relevant; capacity planning & cost control.

AI-first workflow :

Use Cursor / Copilot / LLM reviewers for coding, tests, and PR feedback with prompt hygiene, determinism, and secret safety.

Working Hours & Collaboration Maintain 4–5 hours daily overlap with the US team, typically 2 : 00–11 : 00 PM IST (Mon–Fri) .

Participate in sprint rituals, design reviews, incident / launch windows during the overlap.

Minimum Qualifications 5–10 years building & shipping production systems with Node.js (TypeScript) and NestJS ; strong React (TypeScript) proficiency.

Proven scaling & optimization achievements : DB / query tuning, effective caching / CDN, queueing / streaming, horizontal scaling, Core Web Vitals awareness for user-facing flows.

Hands-on with Docker , CI / CD (GitHub / GitLab Actions), and a major cloud ( AWS / GCP / Azure ).

Solid SonarQube experience (quality profiles, coverage gates, security hotspots).

Testing depth : Jest / Vitest , React Testing Library , Playwright / Cypress ; testcontainers for integration tests.

Excellent ownership, documentation, and cross-functional collaboration.

Nice to Have Fastify, Next.js, GraphQL, WebSockets / event-driven designs.

IaC ( Terraform / CDK ), GitOps / ArgoCD, feature flags, experimentation (Mixpanel).

Node profiling ( clinic.js ), cost / perf tuning, accessibility (WCAG).

CI / CD & Quality (Expectations) Branching : trunk-based or GitFlow with protected main; mandatory PR checks.

Pipelines include : type-check, lint, unit → integration → e2e tests, SonarQube scan , SCA (Dependabot / Snyk), Docker build, deploy, smoke checks, auto-rollback hooks.

Quality bar :

Test coverage ≥ 80% overall ( ≥ 90% on core paths).

0 blocker issues in SonarQube; no new critical vulnerabilities / smells.

Frontend preview builds meet perf budgets (LCP / TTFB / CLS).

Definition of Done CI green (type-check, lint, tests); SonarQube gate passed .

Telemetry & alerts configured; runbook / README updated; ADR / OpenAPI updated as needed.

Feature flags set for safe rollout; migrations and rollback notes included.

30 / 60 / 90 Success Plan 15 days : Local env ready; ship a small backend-led feature behind a flag; SonarQube green; dashboards wired.

45 days : Lead a medium backend feature; improve a pipeline step (caching / parallelism); add alert + runbook.

60 days : Own a service / domain; propose an ADR; measurably raise reliability / perf for a critical path.