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Koonei

Full Stack Developer Backend Heavy

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  • Posted 7 days ago
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Job Description

Full Stack Developer Backend Heavy

What we need: A Backend-Heavy Full Stack Developer for a large-scale enterprise Software platform. Core focus: APIs, business logic, integrations. But comfortable stepping into frontend when the team needs it.

To Apply: https://forms.gle/fzANhU4twANdfokp6

Key responsibilities:

  • Build RESTful APIs using Node.js / NestJS / TypeScript
  • Design and optimize PostgreSQL schemas using Prisma ORM
  • Implement complex workflows, state machines, and approval flows
  • Integrate payment gateways, messaging APIs, and external services
  • Build background jobs with Redis + BullMQ
  • When needed: build pages/components using React / Next.js
  • Write tests, participate in code reviews and daily standups

Profile we're looking for:

  • 3+ years experience, strong backend focus
  • Strong: Node.js, NestJS, PostgreSQL, Prisma, TypeScript, Redis
  • Comfortable with React / Next.js can build admin pages, forms, tables independently
  • Third-party API integration and webhook handling experience
  • Database transactions and data integrity understanding
  • Unit testing with Jest
  • Believes in continuous learning stays curious, picks up new tools fast, sees challenges as growth

Nice-to-have (big plus): React Native, payment integrations (Stripe/HiPay), Twilio, AWS (SES/S3/Lambda), Firebase, Docker, multi-tenant SaaS, ERP/CRM experience.

Goal of the role: Be the backbone own APIs, business logic, and integrations end-to-end. Step into frontend when it counts. Backend specialist first, truly full stack when needed.

Budget: 1 Lakh INR/month

Location: Kolkata, India (hybrid)

Hours: Full-time

To Apply: https://forms.gle/fzANhU4twANdfokp6

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About Company

Koonei

Job ID: 142729953