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Harsheet Sharma

@harsheetsharma

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Backend engineer focused on fault-tolerant distributed systems, idempotent APIs, and queue-based architectures.

India

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What I'm looking for

I’m looking for a remote-friendly role where I can build fault-tolerant distributed systems, design idempotent APIs, and ship observable, high-throughput services—partnering with teams that value reliability, clarity, and engineering excellence.

I’m a backend engineer and OSS contributor (Rocket.Chat, AsyncAPI) with hands-on experience in fault-tolerant distributed systems, idempotent APIs, and queue-based architectures. I’m a GSoC 2026 applicant and a BCA graduate (2025), and I bring a strong focus on reliability and correctness in production-style code.

I’ve shipped real impact through API and infrastructure work—migrating Rocket.Chat endpoints to AJV-validated OpenAPI format and refactoring federation utilities while catching and fixing bugs. In my projects, I built OpsFlow for distributed workflow orchestration (99% uptime, 90.5% success rate) and a Transaction-Safe Payment System using database transactions, row-level locking, and retry-safe idempotent endpoints. I also built a full-stack visual AI workflow builder (DAG execution + async task processing) that integrates Gemini, Clerk auth, and PostgreSQL—showing I can deliver end-to-end systems with clean architecture.

Experience

Work history, roles, and key accomplishments

Rocket.Chat Federation Refactor

Rocket.Chat

Mar 2026 - Present (3 months)

Refactored Matrix user ID generation into a reusable utility and fixed a review-stage bug found during iteration. Improved maintainability in Rocket.Chat's production TypeScript codebase.

TypeScript Refactoring Utility Extraction Code Review

AsyncAPI Studio Layout Fix

AsyncAPI

Mar 2026 - Present (3 months)

Fixed a horizontal overflow bug in AsyncAPI Studio, improving UI correctness for the mobile layout. Delivered a PR that passed SonarCloud quality gate with zero new issues.

JavaScript AsyncAPI SonarCloud Quality Gates TypeScript

GSoC 2026 Rocket.Chat Proposal

Google Summer of Code

Mar 2026 - Present (3 months)

Submitted a GSoC 2026 proposal for complete API migration, including automated OpenAPI specification generation for Rocket.Chat.

API Migration OpenAPI TypeScript Backend Engineering

Rocket.Chat API Migration

Rocket.Chat

Mar 2026 - Present (3 months)

Migrated Rocket.Chat's rooms.createDiscussion endpoint to an AJV-validated OpenAPI (TypeScript production codebase). Contributed to production-level API migration work in a 10k+ GitHub stars repository.

TypeScript OpenAPI REST APIs API Migration Code Review

TrekAI Workflow Builder

TrekAI

Built a full-stack AI workflow canvas with a DAG execution engine supporting parallel branches and async task processing. Integrated Gemini API for LLM node execution, Clerk authentication, Neon PostgreSQL, and deployed the app on Vercel.

Next.js TypeScript React Flow Trigger.Dev Gemini API Clerk Auth PostgreSQL Deployment

Transaction-Safe Transfer Engine

Transaction-Safe Payments

Designed a P2P transfer engine using database transactions and row-level locking to prevent race conditions and double-spending. Implemented idempotent API endpoints for retries and webhook callbacks and validated transactional consistency across 100+ concurrent user scenarios.

PostgreSQL Prisma Stripe Webhooks Database Transactions Concurrency REST APIs

OpsFlow Distributed Workflow

OpsFlow

Built a distributed workflow orchestration engine with separated control/execution planes to scale without shared state. Implemented exponential backoff retries for 5,000+ concurrent jobs, reaching 99% uptime and 90.5% success rate; reduced failed job conflicts by 85% using PostgreSQL-backed execution logs.