Jeel Rupapara

About Jeel Rupapara

Hi, I\'m a freelancer,I help companies build fast, reliable, and scalable systems—especially in the forex trading and fintech space.With deep expertise in Golang, microservices, and real-time data processing, I focus on creating backend systems that are ready for high performance in real-world conditions. Here’s how I can help- Design and build forex trading engines with real-time P&L, margin, commission, and swap logic- Create low-latency systems using gRPC, NATS, and Kafka- Integrate smoothly with brokers, liquidity providers, and external APIs- Set up complete observability using Prometheus, InfluxDB, and custom dashboards- Improve system reliability and speed with modern DevOps practices, Docker, and CI/CD pipelines- Build backend services that are modular, maintainable, and easy to scaleIf you\'re looking to scale your trading platform or need help with backend performance and system design—I’d love to connect.

Experience

1. Sr Golang Developer

   9dot Technology

   Dec 2024 — Present

   Explored the trading domain in great depth, including how Forex and broker platforms work internally and externally-covering strategy development, risk management, A/B books, liquidity providers (LPs), data feeds, and every small and big detail- Developed numerous algorithms and architectures for trading systems, including calculations for profit, commissions, swap, and more- As a Team Lead, handled development, deployment, and made key decisions regarding which calculations should be performed within our platform- On the technical side, worked with Go (backend), NATS (messaging queue), microservices, gRPC, Prometheus, custom in-memory caching, InfluxDB, Docker, and many other tools to make the system fast, scalable, and resilient.

Education

• Gujarat Technological University (GTU)

  Bachelor of Engineering - BE, Computer Engineering