Software Engineer · Open Source Contributor
Building software systems that scale — and engineering teams that last.
I'm a Senior Software Engineer based in Jakarta, Indonesia, with 6 years of experience building production-grade systems across e-commerce, POS, and enterprise platforms. I care deeply about engineering quality, team growth, and building workflows that make developers ship faster with fewer bugs.
Currently transitioning into Engineering Manager / Technical Lead roles — focused on helping established companies build strong technical foundations as they digitalize their operations.
- 🏪 Built & deployed a nationwide system to 240+ stores across cities in Indonesia
- 💰 Reduced software licensing costs by ~76% through a flexible, web-based architecture
- ⚡ Cut team development time by 30% via a Centralized Multi-Frontend Backoffice
- 🧪 Standardized automated E2E testing with Playwright — significantly reducing production bugs
- 👥 Mentored and guided 10+ engineers
Full-stack hotel management system built with Laravel 12
A production-ready open source application featuring real-time notifications via Laravel Reverb & WebSockets, role-based access control, complete reservation workflows, and a modern dashboard with Chart.js analytics.
Laravel PHP WebSockets Real-time Bootstrap
Open source admin dashboard starter built with Nuxt 3
A clean, ready-to-use admin template for teams who want to move fast without sacrificing quality.
Nuxt 3 Vue 3 TypeScript Tailwind CSS
🗄️ DBViewer
Rails engine to explore databases, generate ERDs, and monitor SQL queries
A developer tool that mounts directly into any Rails app, giving you a clean UI to browse tables, run safe SQL queries, view schema relationships, and analyze query performance — with built-in PII masking and access control.
Ruby on Rails Rails Engine ERD SQL Developer Tools
Languages
PHP Ruby JavaScript TypeScript
Frameworks & Libraries
Laravel Ruby on Rails Vue.js Nuxt.js Svelte React
Infrastructure & DevOps
Docker Docker Swarm Kubernetes Kafka Redpanda AWS GitHub Actions
Testing & Monitoring
Playwright New Relic
Practices
System Design Agile/Scrum Code Review Mentoring Workflow Standardization
I'm open to Engineering Manager and Technical Lead opportunities, especially with companies going through digital transformation in Indonesia and Southeast Asia.
If you're building something meaningful and need someone who can lead both the engineering and the team — let's talk.
📧 wailantirajoh@gmail.com 💼 linkedin.com/in/wailantirajoh
