Back End Developer

13 hours ago

Thiruvananthapuram, India OPTIMAS.AI Inc Full time

Designation: Back-end Engineer — NestJS / TypeScript (1–3 yrs)Job Location: Permanent Work from Home (The office location is in Bangalore, but Permanent Work from Home is being provided to all employees. Candidates anywhere in India can apply.)Experience: 1 - 3 yearsNotice period: Immediate joiner or a maximum of 30 daysRole summary:Own APIs, integrations, and background jobs powering OPTIMAS’s portals. You’ll build services in NestJS + TypeScript with Postgres (Prisma), Redis (BullMQ), and S3/R2, integrate SSO and third-party vendors, and keep the system observable and secure.What you’ll do:Build NestJS services (REST/GraphQL), modules, guards, interceptors; generate OpenAPI.Model data in Postgres (Prisma); implement caching and BullMQ workers in Redis.Implement SSO (OIDC with Okta/Azure AD), RBAC, audit logs, rate-limits.Integrate vendor systems & webhooks: Disprz (LMS), ticketing (e.g., Zendesk/Freshdesk), CRM, ERP (NetSuite).Implement exports (PDF/XLS), notifications, and secure file pipelines (pre-signed S3/R2).Add observability (logs/metrics/traces), error handling, and idempotency.Collaborate with FE/mobile; maintain API contracts in a monorepo package.Must-have skills1–3 years with Node.js + TypeScript; hands-on NestJS (modules/guards).SQL schema design; Prisma/TypeORM; performance/query basics.Redis for cache/queues; BullMQ workers; job retries/backoff.Secure file handling (pre-signed URLs), pagination, validation, error shapes.AuthN/AuthZ concepts: OIDC/JWT/opaque tokens, role/permission checks.Good Git/GitHub hygiene, testing mindset, readable docs.Nice-to-havesFastify adapter, OpenTelemetry, structured logging.Vector/full-text search (pgvector/OpenSearch).PDF generation (Puppeteer) and Excel exports.Basic security (OWASP, rate-limits, input sanitization).

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