Ohansyah Ohansyah

Most e-commerce and SaaS teams eventually hit the same backend walls: can't handle scale, payment integrations that break under load, and APIs that crawl as the user base grows. I've spent over 7 years solving exactly these problems in production.

I don't just execute tickets, I own the backend end-to-end. I help founders and engineering leads build, stabilize, and scale infrastructure that handles millions of operations without breaking a sweat.

Recent high-impact wins:
1. Built and maintained a backend search system handling 500M+ product SKUs using Elasticsearch, keeping response times under 1 second during peak traffic spikes.
2. Architected large-scale data ingestion pipelines capable of processing 1,000,000+ records flawlessly using AWS Step Functions and Go-based Lambda functions.
3. Maintained 99% platform uptime through high-traffic events using defensive backend logic and robust microservices architecture.

What I Bring to Your Project:
1. Deep Framework Expertise: Daily production delivery in Laravel and the PHP ecosystem, complemented by high-performance services built in Go and Node.js.
2. Complex Integrations: Payment gateways (Xendit, Midtrans, Espay, OVO), logistics APIs (Biteship, Grab), and enterprise systems (SAP).
3. AWS Cloud Infrastructure: EC2, ECS, RDS, SQS, Lambda, and Step Functions.
4. Database & Search: MySQL, PostgreSQL, Redis, and Elasticsearch.
5. Engineering Standards: Clean architecture, SOLID principles, TDD (PHPUnit), and automated CI/CD pipelines.

How I Work:
I operate as a high-ownership, remote-ready technical lead. I prioritize clear API and database design, practical architecture without over-engineering, and a strict focus on business flows. Whether you need a legacy codebase modernized, a robust REST API built from scratch, or serverless infrastructure deployed, I deliver code that scales securely.

If your project involves complex API integrations, scaling a Laravel application, or deploying resilient AWS infrastructure, let's talk.