Actively looking · Worldwide · Remote or On-site

Al Falah Lazuardi

Backend Engineer · Node.js · TypeScript · Golang · 5 years shipping production systems

12× API throughput
60% query latency saved
3K+ records per job
15K daily transactions
Email Me Directly → See My Work
About Me

I ship fast backends. Then I make them faster.

Location
East Jakarta, Indonesia
Remote or relocate worldwide
Contact
alfalahlazuardim@gmail.com
+62 851 7300 9061
Visa
Open to visa sponsorship
or remote worldwide

I've spent five years shipping backend systems in production — ride-hailing, fintech, and government infrastructure. My primary stack is Node.js and TypeScript; I've been writing Golang for microservices for the past two years.

Performance is where I go deep. I cut API response time 12× in a single refactor by rearchitecting O(n²) logic to O(n log n). I reduced database query latency by 60% through index analysis and query rewrites. Every optimization I ship comes with measured before/after data.

I use AI-assisted tooling (Claude Code, GPT Codex) as a core part of my daily workflow — not occasionally, but as a productivity layer that lets me move faster without cutting corners. I'm looking for backend or software engineering roles worldwide — remote or on-site. Open to visa sponsorship where needed.

Work Experience

5 years. 3 companies. Systems that still run in production.

PT Code Development Indonesia
Backend Engineer
Jan 2023 – Present
Node.js TypeScript Golang PostgreSQL Redis Firebase AWS S3 PGP/AES-256
  • Designed and shipped the Go-Semolis wallet service from zero to production — full payment gateway integration, complete transaction lifecycle management.
  • Diagnosed query bottlenecks on the Nuun project and cut latency 60% through targeted indexing and query rewrites — zero downtime.
  • Eliminated a padding oracle vulnerability in MyTelkomsel by migrating AES-256 CBC → GCM encryption before it became a breach.
  • Achieved 12× API throughput by rearchitecting O(n²) offer filtering to O(n log n) — measured improvement, shipped to production.
  • Built multi-channel notification infrastructure (email/SMTP, push via Firebase, in-app) now used across multiple products.
  • Shipped real-time Hajj/Umrah pilgrim tracking service in Golang — PostgreSQL + Redis pub/sub for low-latency location updates.
PT Stafbook Teknologi Asia
Backend Engineer · Contract
Aug 2023 – Aug 2024
Laravel MySQL Redis WebSocket Queue
  • Scaled employee import capacity from 200 to 3,000+ records per job — identified N+1 bottleneck, moved to async processing with Laravel Queue, 70% throughput gain.
  • Made payroll calculations 10× faster on large datasets by eliminating cascading N+1 queries throughout the module.
  • Cut scheduling-related support tickets by 80% by redesigning the scheduling logic from scratch instead of patching it.
  • Added real-time WebSocket notifications for long-running import jobs — users no longer had to guess when their data was ready.
PT Solu Filantropi Teknologi
Backend Engineer
Mar 2020 – Jan 2023
Golang Laravel Lumen PostgreSQL Docker Microservices
  • Delivered a warehouse & logistics platform for PT HM Sampoerna handling 15,000+ daily transactions — brought error rate down by 85% and delivery success to 95%.
  • Cut manual processing by 60% for Indonesia's Ministry of Education by automating fund disbursement tracking across 5,000 transactions.
  • Increased order volume by 30% for PT Pertamina by building a WhatsApp ordering bot (Twilio + Dialogflow) — no app install required for end users.
  • Improved operational efficiency by 80% for the State Civil Service Commission's complaint portal — Lumen backend, AngularJS frontend, Keycloak SSO.
Technical Skills

5 years of daily production use — not just tutorials.

Expert
Node.js TypeScript Golang Laravel / PHP REST API Microservices PostgreSQL MySQL Redis Git
Advanced
Docker AWS S3 Kafka WebSocket Event-driven architecture
Intermediate
CI/CD
Daily Tooling
Claude Code GPT Codex AI-assisted development
Education

Started competing early. Still do.

2021 – 2025
B.Sc. Information Systems
Binus University, Jakarta
2017 – 2021
Computer Science Vocational
SMK Negeri 26 Jakarta
3rd Place · Web Design LKS SMK
3rd Place · Smartschool SEACC Batch 3 (Southeast Asia)
Get in Touch

Hiring a backend engineer? I'm available worldwide.

I'm actively looking for backend or software engineering roles worldwide — remote or on-site. Available for full-time positions. Open to visa sponsorship where needed — I'll handle the paperwork, you focus on the role.

alfalahlazuardim@gmail.com
📍 East Jakarta, Indonesia 📞 +62 851 7300 9061 💻 Remote-friendly 🌏 Open to relocate worldwide 📋 Visa sponsorship welcome