Founding Backend Developer

10 years

0 Lacs

Posted:2 weeks ago| Platform: Linkedin logo

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Work Mode

On-site

Job Type

Full Time

Job Description

Founding Backend Developer (Node/NestJS & Microservices)


Equity Only | Pre-Seed Stage Startup | India Only


About Us

We are building an industry-leading FinTech mobile app


The Role

We are seeking a Founding Backend Developer with in-depth expertise in Node.js, NestJS, and microservices architecture


DIY founder mindset


What You’ll Do

  • Backend Architecture & Development

  • Design and implement low-latency, high-throughput microservices

    using

    Node.js and NestJS

    .
  • Build real-time APIs and services over

    REST, WebSockets, and gRPC

    to support live trading, portfolio updates, and event-driven alerts.
  • Optimize systems for

    sub-100ms response times

    where required, enabling trading-grade performance.
  • API-First Development

  • Define clear API contracts and generate Swagger/OpenAPI documentation

    .
  • Ensure seamless integration with

    mobile frontend

    ,

    AI/ML services

    , and

    data pipelines

    .
  • Security & Compliance

  • Implement authentication and authorization (JWT, OAuth2).

  • Integrate secure practices for handling financial and personal data (KYC, 2FA, PCI/DSS awareness).
  • Establish logging, monitoring, and audit trails for regulatory alignment.
  • Scalability & Reliability

  • Design systems that can scale horizontally under heavy load.

  • Ensure fault tolerance, failover mechanisms, and efficient resource utilization.
  • Build observability into services with metrics, tracing, and alerts.
  • Collaboration & Startup DNA

  • Work closely with the Frontend

    ,

    AI

    , and

    Data Engineering

    teams to build seamless end-to-end flows.
  • Take full ownership of backend development: from initial design to deployment and monitoring.
  • Contribute to technical vision and make early architectural choices that define the company’s long-term success.


What We’re Looking For

  • 10+ years of backend development experience

    , with strong proficiency in

    Node.js

    and

    NestJS

    .
  • Proven expertise in designing and implementing

    microservices

    and

    API-driven architectures

    .
  • Hands-on experience building

    low-latency, high-performance systems

    (sub-100ms response targets).
  • Solid knowledge of

    REST, WebSockets, gRPC

    , and event-driven architectures.
  • Experience with

    Swagger/OpenAPI

    , API lifecycle management, and contract-first development.
  • Strong understanding of

    cloud-native practices

    , containerization, and CI/CD pipelines(GitHub Actions).
  • Familiarity with

    financial/trading systems

    is a significant plus.
  • Deep knowledge of

    security practices

    (JWT, OAuth2, KYC workflows, PCI compliance awareness).
  • A

    DIY builder and founder mindset

    : resourceful, entrepreneurial, and willing to operate in ambiguity.
  • Willingness to work in an

    equity-only, pre-funding startup

    environment.


Why Join Us

  • Be the

    founding architect of backend systems

    that power a next-gen FinTech platform.
  • Build

    Robinhood-class infrastructure

    with

    trading-grade performance and reliability

    .
  • Collaborate with a small, elite founding team across AI, Data, and Frontend.
  • Equity-based compensation at

    pre-angel stage

    : high risk, high reward, massive ownership potential.
  • Shape the

    core product and technology stack

    at the ground floor.

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