Headline

Senior Engineer @Smallcase | Distributed Systems | Fintech | Ex-Anukai, Cleartrip(Flipkart) | Google Foobar | AWS

About

Backend Engineer with 5+ years of experience designing high-performance distributed systems at scale. I've architected infrastructure handling significant financial transaction volumes with 90% error reduction and scaled backend services from 2M to 15M+ users while maintaining sub-200ms response times. My technical expertise includes: - Building distributed transaction systems with strong consistency guarantees across microservices - Implementing domain-driven design to reduce system coupling - Optimizing complex real-time data aggregation systems - Designing fault-tolerant systems with extensive error handling Core tech stack: Node.js, Golang, PostgreSQL, MongoDB, Redis, Kafka, AWS Notable projects: - Architected order flow system at Smallcase achieving 90% error reduction - Architected microservices backend for INTELIGHTS traffic management system processing 16M+ rows/day - Developed real-time emergency response system with geospatial optimization (deployed for Punjab government) I'm passionate about solving complex engineering challenges at scale and creating systems with real-world impact. Always interested in connecting with fellow engineers and discussing distributed systems architecture.

Location

Bengaluru

AI stack

claude code

meta

Browserbase

Fireworks AI

Work experience

SDE3 - Backend at smallcase, Mar 2026 - Present · 8 mos, Bengaluru

Mentor at Mentro, Mar 2022 - Present · 4 yrs 8 mos, - Provide 1:1 technical mentorship to early-career backend engineers on distributed systems, API design, and database optimization. - Run code reviews and architecture sessions on real-world fintech scenarios; advise on skill roadmaps and technical growth. - Tech: Node.js, MongoDB, PostgreSQL, Microservices

SDE2 - Backend at smallcase, Apr 2023 - Mar 2026 · 3 yrs, Bengaluru, - Led order flow architecture redesign supporting millions of concurrent users - Scaled backend infrastructure from 2M to 15M+ users while maintaining performance SLAs - Designed fault-tolerant systems with comprehensive retry mechanisms and circuit breakers - Owned critical incident response and root cause analysis for production issues - Mentored junior engineers on system design principles and best practices - Technologies: Node.js, Golang, PostgreSQL, Kafka, Redis, AWS

SDE1 - Backend at smallcase, Apr 2021 - Mar 2023 · 2 yrs, Bengaluru, Karnataka, India, - Developed distributed transaction system handling INR 20,000+ crores with 90% error reduction - Implemented domain-driven design patterns to reduce coupling between services - Built real-time data aggregation pipelines for wealth tracking functionality - Optimized database queries and caching strategies to maintain sub-200ms response times - Technologies: Node.js, PostgreSQL, MongoDB, Redis, Kafka, Docker

Founding engineer at Anukai Solutions Pvt. Ltd., May 2020 - Apr 2021 · 1 yr, Patiala, - Founding engineer at a funded IoT/traffic-tech startup; company wound down operations due to COVID-19 impact. - Architected microservices backend for IoT edge data, decomposing an initial monolith; built a fault-tolerant API layer with extensive retry/error handling. - Implemented edge inference for computer-vision pipelines, achieving a 600% efficiency gain; reduced infra costs by 50% through containerization. - Coordinated a small freelance engineering team alongside hands-on architecture and delivery. - Tech: Node.js, Python, MongoDB, PostgreSQL, Redis, AWS, REST

Software Engineer at Cleartrip.com, Feb 2020 - May 2020 · 4 mos, India, - Built B2C platform automation, a service integration layer, and a real-time notification service for booking updates and itinerary changes. - Tech: Node.js, MongoDB, MySQL, REST

Backend Developer @Ucollege at Udacity, Feb 2019 - Apr 2021 · 2 yrs 3 mos, Chitkara University, - Ran hands-on sessions on Node.js, databases, and API design for engineering students. - Built joint learning events, technical workshops, and hackathons with the Developer Student Club. - Tech: Node.js, Databases, REST APIs

Backend Engineer at Anukai Solutions Pvt. Ltd., Jan 2019 - Apr 2020 · 1 yr 4 mos, Patiala, Punjab, India, - Built internal data processing application for dataset preparation using Node.js, PostgreSQL, and Redis - Developed backend system for real-time traffic data ingestion and analysis with Node.js and MongoDB - Created Python-based edge computing solutions for traffic light control with real-time decision making - Optimized Raspbian OS for edge deployments, improving performance and reliability - Implemented data processing pipelines for computer vision models Tech Stack: Node.js, Python, PostgreSQL, MongoDB, Redis, Linux

Backend Engineer at Anukai Solutions Pvt. Ltd., Jan 2019 - Apr 2020 · 1 yr 4 mos, Patiala, Punjab, India, - Built a real-time traffic-data ingestion system and Python-based edge computing for traffic-light control, running on optimized Raspbian OS deployments. - Tech: Python, Node.js

Education

B.Tech, Computer Science and Engineering, Chitkara University

Public links

github: https://github.com/rahulgoyal911