Senior Backend Technology Specialist

13 hours ago

Kolkata, West Bengal, India beBeeSoftware Full time ₹ 2,00,00,000 - ₹ 2,50,00,000
Backend Architect & Developer

We are building an industry-leading FinTech mobile app that brings hedge-fund-grade trading intelligence to everyday investors.

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 is a hands-on, builder position: 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.

  • 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.

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

Key responsibilities include:

  • 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.

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