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Vapi | Expertini

Urgent! Founding Backend Developer Job | InSiteVerse

Founding Backend Developer



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 that brings hedge-fund-grade trading intelligence to everyday investors.

Think Robinhood, but powered by AI-driven insights, ultra-low-latency systems, and transparent user experiences.

As part of our founding technical team, you will architect and implement the backend foundation that powers our entire platform — from trading services and portfolio management to real-time data streaming and user-facing APIs.


The Role

We are seeking a Founding Backend Developer with in-depth expertise in Node.Js, NestJS, and microservices architecture to design and deliver the high-performance backend powering our trading platform.

This is a hands-on, builder role: you will create systems that handle real-time financial data, low-latency execution pipelines, and mission-critical APIs that integrate with frontend apps, AI engines, and external brokerage APIs.


You will bring a DIY founder mindset, taking ownership of backend reliability, security, and scalability in an equity-only, pre-funding environment.


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 complete 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.


Required Skill Profession

Computer Occupations



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