Backend Developer - NestJS + PostgreSQL

About Us

White Whiz is an early-stage startup building a consumer-facing platform that solves real problems in a large, underserved market. Small team, real ownership, interesting problems.

What You'll Do

• Design and maintain PostgreSQL schemas for a multi-entity domain with different entity types, user roles, and complex workflows
• Build RESTful APIs using NestJS with proper DTO validation, guards, interceptors, and structured error handling
• Implement JWT authentication and role-based authorization that's production-secure
• Own backend reliability - structured logging, exception filters, health checks
• Write clean, strictly-typed TypeScript with proper interfaces
• Maintain clean Git practices meaningful commits, proper branching, no secrets in the repo
• Participate in regular code reviews

What We're Looking For

• 2+ years professional backend development experience
• Strong NestJS knowledge - modules, providers, dependency injection, guards, pipes, interceptors (not just Express with decorators)
• TypeScript in strict mode - you understand why any is a problem
• PostgreSQL - schema normalization, foreign keys, migrations, indexing basics
• Security awareness - input validation, CORS, auth patterns
• Git discipline - clean branching, meaningful commits, proper .gitignore
• Redis basics - caching patterns and session management

Good to have: Docker, Jest testing, CI/CD experience, SSR concepts, startup experience

Stack: NestJS PostgreSQL Redis Next.js (frontend) Cloudflare GitHub

Compensation

• 4,00,000 6,00,000 per annum
• Paid time off and sick leave

Notice Period

• Immediate joiners preferred
• Candidates with up to 30 days notice period are also welcome to apply.

On-Premises Coding Assessment

Shortlisted candidates will complete a live coding assessment at our Chennai office - a small NestJS + PostgreSQL problem covering schema design, API creation, and validation. No internet access, no AI tools, offline docs provided.

Followed by a short walkthrough where you explain your decisions.