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Hey, I’m Ahmad Taufiqurrohman

Backend Engineer

High-Throughput APIs, Distributed Caching & Cloud Systems.

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My projects

From playful experiments to thoughtful systems, a look at the work I’m proud to have shipped.

PROJECT 1
Idempotent Webhook & Payment Engine

Idempotent Webhook & Payment Engine

Event-driven transaction processing engine built with PHP/Laravel, utilizing Redis distributed locks and queues for robust, idempotent execution.

View code: https://github.com/rohmantr/

PROJECT 2
Spatial Information Backend System

Spatial Information Backend System

Enterprise backend utilizing NestJS, PostgreSQL, and PostGIS for spatial data processing. Features strict RBAC and sub-millisecond query optimization.

View code: https://github.com/rohmantr

PROJECT 3
Transaction Ingestion & Session Engine

Transaction Ingestion & Session Engine

Session migration to Redis & SQL refactoring that reduced API latency by 40-50% and sustained 99.8% uptime.

View code: https://github.com/rohmantr/

PROJECT 4
Gopsy — Real-Time Counseling

Gopsy — Real-Time Counseling

Telehealth consultation microservices with multi-tier Redis caching, cutting DB load by 60% with sub-ms responses.

View code: https://github.com/rohmantr/psy-backend

Let’s connect

I’m always open to discussing new projects, creative ideas, or opportunities to be part of your visions. Just reach out!

2026 © rohmantr

Ahmad Taufiqurrohman