Muhammad Irza Arifin — Full-Stack Software Engineer
I build software businesses run on.
Selected work — 10 products, schema to screen
Software I've shipped
-
01 / 10
Defense Education Platform
Education and quota management for a national defense institution
-
02 / 10
Spendtime POS
Multi-outlet point of sale, booking, and back-office in one system
-
03 / 10
Tadsheen PMS
A property management system built from an empty repository
-
04 / 10
Parity AI
Call recording and AI service-quality analysis
-
05 / 10
Spendtime Careers
A 5-locale company site with an HR hiring pipeline
-
06 / 10
WhatsApp Platform
Self-hosted WhatsApp messaging infrastructure
-
07 / 10
SIAP PKWT
Employment-contract registration for a regency government
-
08 / 10
Zelhouse Studio POS
Offline-first desktop point of sale that never stops selling
-
09 / 10
FINDME
A two-sided job portal for internships and entry-level roles
-
10 / 10
SiAnter
Hyperlocal delivery for customers, drivers, and outlets
Your project
could be next.
Manifesto
What I believe
Build with purpose.
Ship with pride.
Proof, not promises.
- 2+ Years shipping products
- 10 Products shipped
- 5 Locales shipped
Services
What I can build for you
-
Dashboards, portals, and full products — CMS, LMS, PMS, ERP, CRM, and HRIS systems built with Next.js or SvelteKit, server-side rendered and production-ready.
- Next.js
- SvelteKit
- React
- TypeScript
- PostgreSQL
- Supabase
-
Point of sale, inventory, accounting, and financial software that runs a business day to day — from walk-in queues to profit-and-loss reports.
- POS systems
- Inventory
- Accounting
- FIFO costing
- Reporting
-
Cross-platform apps for customers, drivers, and teams — one codebase, both stores, shipped with Flutter or React Native.
- Flutter
- React Native
- Realtime
- Push notifications
-
Go microservices, gRPC, REST APIs, and the integrations between them — auth, RBAC, queues, caching, and third-party syncs that stay up.
- Go
- NestJS
- Express
- Laravel
- gRPC
- Redis
- BullMQ
-
Offline-first desktop software with native performance — Tauri and Rust for tools that print receipts, run counters, and never need the internet.
- Tauri
- Rust
- Svelte
- SQLite
- Native printing
-
Shipping is half the job — containerized deploys, private networking, and monitoring that keeps apps up, plus ongoing care for content sites (50+ WordPress sites and counting).
- Docker
- Caddy
- Tailscale
- Prometheus
- Grafana
- WordPress
About
The person behind the products
I treat software as a business tool,
not a tech demo.
If it doesn’t ship, scale, or sell —
it doesn’t count.
I'm Irza — a full-stack software engineer from Indonesia. I started in a campus developer community, spent a year building a property management system and an AI call-analysis app remotely for a startup in Riyadh, and today I'm Head of IT at a Bandung company — shipping a national defense education platform, a multi-outlet POS, and the messaging infrastructure behind them.
My sweet spot is owning a product from schema to screen: Go services and REST or gRPC APIs on one end, SvelteKit or Next.js interfaces on the other. These days I also lead a small team — mentoring two junior developers while staying hands-on in the code. Open to international remote · UTC+7.
Currently
- Head of IT @ Spendtime
- Mentoring 2 junior devs
- Open for freelance & remote · UTC+7
Credentials
- BNSP Certified Programmer (2025–2028)
- Alibaba Cloud — Developer, ACA, Generative AI Developer
- TOEFL ITP 647/677
- 1st Place — Web Dev Competition, UMJ 2024
- IT Program — CEP-CCIT, University of Indonesia
- B.ICT (expected 2027) — Asia e University
Experience
Where I've been
- Sep 2026 — Present Full-time · Bandung, Indonesia
Head of IT
PT Spend Group International (Spendtime)
Leading and mentoring 2 junior developers while staying hands-on.
- Apr 2026 — Aug 2026 Full-time · Bandung, Indonesia
Full-Stack Developer
PT Spend Group International (Spendtime)
Shipped a defense education platform, a 5-locale careers site, a 2-outlet POS, and self-hosted WhatsApp messaging.
- Dec 2025 — Apr 2026 Freelance · Remote
Full-Stack Developer
Independent
Delivered SIAP PKWT for the Paser Regency government and an offline desktop POS for a print studio.
- Jan 2025 — Dec 2025 Full-time · Remote · Riyadh, Saudi Arabia
Full-Stack Developer
Tadsheen (تدشين)
Built a property-management product from an empty repository, remote for a Riyadh startup.
- Feb 2024 — Nov 2025 Part-time · Depok, Indonesia
Full-Stack Developer & Instructor
Komunitas Android (Komandro) CCIT-FTUI
Built a Next.js and Supabase LMS and authored a Laravel curriculum.
- Feb 2025 — Aug 2025 Part-time · Jakarta, Indonesia
Coding & Game Development Instructor
RORI Robotic
Wrote a web-development curriculum and taught Roblox game development.
- Sep 2024 — Jan 2025 Freelance · Remote
Full-Stack Developer
Team Coder Web Indonesia
Built a Laravel booking app and fixed SQL-injection and XSS risks in an existing codebase.
Contact