raj mehroliya

Resume

The one-page version.

What I've built and what it changed. The case studies have the reasoning behind each line.

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Raj Mehroliya

Software Development Engineer II · Backend / Distributed Systems / Payments

Gurugram, Haryana, India · rvmehroliya@gmail.com · LinkedIn · GitHub · Portfolio

3+ years
Production backend
5
Payment providers
75%
API cost reduction
20%
Fewer payment inconsistencies

Summary

Backend engineer with 3+ years building multi-tenant mobility SaaS on Node.js, MySQL, Redis, and AWS; promoted to SDE II in January 2026. Focused on distributed concurrency control and multi-region payment infrastructure across India and African markets.

Professional Experience

Togopool Pvt Ltd — Gurugram, India

Software Development Engineer II (Promoted)

Jan 2026 – Present

  • Distributed seat locking: Redis + Lua locking for subscription shuttle passes that reserve seats across 30–45 day windows; atomic hold-and-release, with fallback to an alternate seat instead of a failed booking and payment. Details →
  • Danger-zone-aware routing: Validates each fastest-route polyline (HERE Maps + Google Directions) against geofenced danger zones and automatically requests alternatives that route around them.
  • Timezone-aware scheduling: Coordinate-derived timezones propagated across ride request, engagement, and scheduled-ride pipelines for multi-region deployments.

Togopool Pvt Ltd — Gurugram, India

Software Development Engineer I

Sept 2023 – Dec 2025

  • Wallet & payment infrastructure: Multi-tenant wallet on Stripe and Razorpay with real-time reconciliation and pending-balance settlement; cut transaction inconsistencies by 20%. Extended the payment layer to Paystack, PawaPay, and Peach Payments. Details →
  • Routing cost optimization: Request deduplication and Distance Matrix API fallback routing reduced third-party billing costs by 75% while improving route accuracy. Details →
  • RBAC: Database-driven role and permission system with module-level tab mapping and tenant-specific permission isolation. Details →

SnapSmart Pvt Ltd — Mumbai, India

Full Stack Developer Intern

May 2023 – Aug 2023

  • Full stack development: Built responsive React interfaces and Python REST APIs.
  • AWS deployment: Deployed and tuned applications on AWS (EC2, S3, RDS).

Technical Skills

Languages & Runtime: Node.js, Express.js, JavaScript, Python

Databases & Caching: MySQL, MongoDB, Redis (Redis + Lua distributed locking)

Cloud & Infrastructure: AWS (EC2, S3, RDS), Firebase FCM, cron-based automation, Git / GitHub

Payments & Architecture: Stripe, Stripe Connect, Razorpay, Paystack, PawaPay, Peach Payments, Multi-tenant SaaS, RBAC, event logging, distributed systems, REST API design

Education

B.Tech — Maulana Azad National Institute of Technology (MANIT), Bhopal · 2018–2022

Achievements & Languages

Achievements: Employee of the Month ×2 (April 2024, June 2025) for consistently exceeding performance targets and driving key team initiatives.

Languages: English (Native), Hindi (Native)