rauhan.sheikh

Rauhan Sheikh

Software Developer · Backend & Distributed Systems

India·hello@rauhansheikh.com·github.com/rauhan-sheikh·linkedin.com/in/rauhan-sheikh
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// Professional Summary

Full Stack Engineer with 2+ years of production experience designing APIs, architecting background job queues with BullMQ and Redis, and scaling EdTech and financial platforms serving 20,000+ active users.

// Core Competencies

Backend & Distributed Systems

Node.js, Express, TypeScript, RESTful API Design, Microservices, BullMQ, Redis, Background Job Queues, WebSocket Synchronization.

Database & Data Integrity

PostgreSQL, Prisma ORM, Query Optimization (EXPLAIN ANALYZE), Composite Partial Indexing, Double-Entry Accounting Ledgers, MongoDB.

Frontend & Applications

Next.js (App Router, Server Components), React, TypeScript, Tailwind CSS, Responsive UI Design, State Management.

Architecture & Infrastructure

Docker, Git, CI/CD, Role-Based Access Control (RBAC), Microsoft Graph API Integration, OAuth2, Vercel.

// Professional Experience

Software Developer · ProSync Infotech

2026 – Present | India
  • Designing and developing high-throughput microservices and APIs with TypeScript and Node.js.
  • Collaborating with clients and product leadership to translate complex domain specifications into scalable software.
  • Championing database indexing strategies and query optimizations across PostgreSQL databases.

Software Developer & Associate Manager · Blackboard E-Learning Pvt Ltd (College Vidya)

May 2024 – April 2026 | India
  • Spearheaded the Microsoft Teams Graph API integration, automating meeting generation and calendar event synchronization for 20K+ learners.
  • Re-architected bulk communication infrastructure from browser-dependent loops to Redis/BullMQ worker queues, eliminating dropouts.
  • Optimized heavy database queries across student records, reducing peak query times from 2.5s to under 300ms.
  • Promoted to Associate Manager, mentoring junior developers and coordinating cross-functional sprints across engineering, academic, and operations teams.

Full Stack Engineer · Freelance Web Developer

2023 – 2024 | Remote
  • Built end-to-end bespoke web applications with Next.js, Node.js, and relational databases.
  • Handled entire lifecycle: client discovery, system architecture, database modeling, UI implementation, deployment, and ongoing support.
  • Delivered clean, maintainable code with high Lighthouse performance and SEO scores.

// Key Systems & Engineering Proof

BusinessOS

Case study

Commercial-grade financial operating system for SMEs with ledger-first accounting, immutable transaction journals, integer minor-unit money calculations, and multi-tenant audit logs.

Microsoft Teams & Calendar Engine

Case study

Hiding deep Microsoft Graph API complexity behind an automated calendar & meeting sync engine for 20K+ EdTech users.

Bulk Email Engine (Redis / BullMQ)

Case study

Asynchronous high-volume email delivery architecture replacing fragile browser-dependent API loops with resilient Redis/BullMQ worker queues.

Akshta Enterprises

Case study

Commercial business platform engineered end-to-end for Akshta Enterprises with custom responsive layouts, automated inquiry routing, and direct WhatsApp integrations.

College Vidya EdTech Platforms

Case study

Large-scale EdTech LMS & ERP modules serving 20K+ active students across academic delivery, student portals, and enrollment workflows.