Backend EngineerMid-Senior

Narix Labs; Jaipur; On-site; INR 1,000,000 - 1,800,000; Full time

Job summary

Narix Labs in Jaipur, India, is seeking a Backend Engineer to own the services behind a live behavioural-science platform. You will work on NestJS APIs, a scoring engine, and multi-tenant data models in production with real users.

This is an on-site role based in Jaipur, with remote-friendly language but all roles are Jaipur-based. You will design and build NestJS services, manage PostgreSQL schemas, ensure data isolation, and ship weekly with tests.

Qualifications

• 4+ years building production backend services in TypeScript/Node.js with NestJS experience.
• Strong PostgreSQL design, indexes, transactions, and multi-tenant data isolation.
• Experience owning services in production: monitoring, debugging live issues, and runbooks.

Responsibilities

• Design and build NestJS services: REST APIs, background jobs, integrations, and the scoring engine
• Own the data model — PostgreSQL schema design, migrations, and query performance in a multi-tenant world
• Maintain tenancy boundaries, authorization, and data isolation as features grow
• Ship in weekly sprints with tests covering business logic, scoring, auth, and payments
• Review pull requests and mentor the junior backend engineer

Skills

NestJS

PostgreSQL

Multi-tenant systems

TypeScript

Node.js

Mentoring

Tools

Redis

ORMs

Job description

Engineering

• Strong written communication — decisions here get written down

Backend Engineer

• Mid-Senior

Own the services behind a live multi-tenant platform: NestJS APIs, an assessment scoring engine, and the data model everything stands on.

Jaipur, India

• remote friendly (IST) Full-timeNestJS — APIs, scoring engine, multi-tenant services

All roles are based in Jaipur, India — on-site only, not remote.

The role

You’ll own backend services for a live behavioural-science platform: NestJS APIs, a scoring engine that turns structured assessments into results people act on, and multi-tenant foundations that have to hold as the client's business grows. The systems are in production with real users — this is stewardship and evolution of a living codebase, not greenfield toys.

What you’ll do

• Design and build NestJS services: REST APIs, background jobs, integrations, and the scoring engine
• Own the data model — PostgreSQL schema design, migrations, and query performance in a multi-tenant world
• Keep tenancy boundaries, authorization, and data isolation airtight as features grow
• Ship in weekly sprints with tests where they count: business logic, scoring, auth, payments
• Review pull requests and mentor the junior backend engineer

What you bring

• 4+ years building production backend services in TypeScript/Node.js, with real NestJS experience
• Strong PostgreSQL: schema design, indexes, transactions, and the instinct for when the ORM is lying to you
• You’ve built or maintained multi-tenant systems and can talk concretely about isolation trade‑offs
• Comfort owning services in production: monitoring, debugging live issues, writing runbooks
• Strong written communication — decisions here get written down

Nice to have

• Experience with scoring/rules engines, assessment platforms, or similar domain‑logic‑heavy systems
• Redis, queues, and caching patterns under real load
• Exposure to LLM‑backed features from the service side (prompt orchestration, evals, cost control)

You’ll work with

NestJSNode.jsTypeScriptPostgreSQLRedis

What you get

• Senior‑led delivery: your work is reviewed by people who've shipped production systems, and you see how they think
• An AI‑native workflow — modern AI tooling is standard practice here, with human review as the quality bar
• Real products in production: client work that ships weekly and gets used, not internal demos
• Async‑first, writing‑heavy culture on IST, with deliberate US/EU overlap instead of late‑night calls
• Competitive compensation, reviewed on outcomes