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Sarvagya singh

@sarvagyasingh

Message

I build scalable backend APIs, microservices, and real-time systems that improve performance.

India

Message

What I'm looking for

I'm looking for remote backend engineering work where I can own scalable APIs and distributed systems end-to-end, solve performance and reliability problems, and collaborate with Agile teams across time zones.

At Kraftshala, I re-architected dashboard queries to reduce load time from about 40 seconds to 400ms, built a reusable SQL-based Google Chat alerting platform, and expanded calendar-invite delivery capacity from 2,000 to 400,000 per day using AWS SES.

I've built end-to-end Node.js, TypeScript, SQL, Redis, RabbitMQ, and AWS systems, including microservices with real-time tracking and fault tolerance. At BWS, I also shipped an AI chatbot, Zoho CRM lead integration, and website improvements that cut page load time from about 8 seconds to 2 seconds.

Experience

Work history, roles, and key accomplishments

Backend Developer

Kraftshala

Mar 2026 - Sep 2026 (6 months)

Re-architected data-heavy dashboard queries using a deferred-join pattern, cutting load time from ~40s to ~400ms. Built a self-service Google Chat alerting platform and re-architected calendar-invite delivery to lift throughput via AWS SES.

SQL Query Optimization SES Agile Zoom CRM Payments Excel Data Pipelines Audit Logs

Backend Developer

BWS

Jul 2025 - Dec 2025 (5 months)

Built and deployed an end-to-end AI chatbot on the company website using the MERN stack. Implemented a 'Request a Callback' flow syncing leads to Zoho CRM and optimized site performance and SEO.

MERN Stack MongoDB Express React Zoho CRM SEO Performance Optimization WhatsApp Integration

Teaching Assistant

Coding Blocks

May 2024 - Aug 2024 (3 months)

Mentored 100+ students in Java, Data Structures, and Algorithms through doubt sessions and one-on-one code reviews. Debugged student code and reinforced core problem-solving concepts.

Java Data Structures Algorithms Debugging Mentor