I'm a hands-on software engineer shipping production-grade backend, web, and mobile apps for the energy sector. I love clean systems, fast iterations, and shipping things people actually use.
· currently building @ E-Power CCLSince December 2023 I've been part of the engineering team at E-Power CCL, working across four real-world products — Solar, EAC App, Mobile Billing, and ePower Maps — owning slices of backend, frontend, and ongoing maintenance. I learn fast, write practical code, and stay calm under deadlines.
REST APIs, data modeling, and system design with Node.js, .NET, and SQL/PostgreSQL.
Modern web UIs with Next.js, React, and a deep HTML/CSS/JS foundation.
Cross-platform iOS & Android apps with Dart 3, REST integration, and offline flows.
Docker, Kubernetes, AWS, Render, Supabase, Firebase — shipping and keeping things up.
Pairing with Claude, ChatGPT, Gemini, Codex & Grok to ship faster without losing the craft.
Project management & team leadership for outsourcing — scoping, planning, delivering.
E-Power CCL · Phnom Penh
Max Freelance Team · Remote · Phnom Penh
Freelance Team · RUPP Students · Phnom Penh
Pannasastra University of Cambodia (PUC)
Advanced English program at PUC — academic writing, professional communication, and technical reading.
Norton University
Four-year program covering software engineering fundamentals, databases, networking, and project management.
Instinct InstiSuite
Cross-platform mobile development with Dart 3.0, state management, REST integration, and production deployment.
ETEC Training Center
Memory model, pointers, data structures, and systems-level problem solving with C and C++.
Four products I helped build and keep running at E-Power CCL — covering backend, frontend, and ongoing maintenance.
End-to-end solar rooftop management platform
Full-stack product covering customer onboarding, site surveys, installation tracking, and post-sale operations for E-Power's solar rooftop business.
Customer-facing app for Electricité du Cambodge
Customer mobile experience for Cambodia's national electricity authority — accounts, bills, notifications, and self-service tooling built with Flutter.
Field-ops geospatial platform for E-Power
Geospatial platform mapping power infrastructure, field assets, and operations — backend services plus a mobile client for the field team.
Field billing & meter-reading suite
Mobile billing toolkit for meter readers and field collectors — payments, receipts, and offline-friendly data capture, backed by E-Power's billing core.
Every product above is in production today — and I'm still maintaining all four.
Want a deeper walkthrough or a code sample? Reach out below.
Internal systems, integrations, and SDK work — the kind of code customers never see, but the business runs on.
Meter Data Management System — first cut
Crafted the first version of the Meter Data Management System (MDMS) in close pair-programming sessions with ChatGPT-4.0 — an early dive into AI-augmented development workflows.
Flutter Flow foundation + Supabase + Hasura + .NET Core
Rebuilt MDMS as v2 on a Flutter Flow foundation, shipped a Document Management System (DMS) with backend-less Supabase integration, and delivered Onboard v1 on Flutter Flow + Hasura + .NET Core.
Payment SDK integration with the Bill24 team
Joined the Bill24 team and integrated their payment SDK into BillFlow v1 — wiring up secure payment flows across the billing surface.
Embedding the Bill24 SDK inside the EAC App
Integrated the Bill24 payment SDK into the EAC App customer flow — letting end-users pay electricity bills directly from the app without leaving the experience.
Kotlin single-platform → Flutter cross-platform redesign
Redesigned Mobile Billing from a Kotlin single-platform app into a Flutter cross-platform build — same field-billing workflows, now running on both Android and iOS from one codebase.
Kotlin → Flutter rewrite with online & offline support
Rebuilt ePower Maps from Kotlin into Flutter, adding full offline support so field crews can keep working without network — local data store, sync on reconnect, and conflict handling.
Centralized auth & full security migration to Keycloak
Integrated Solar with Keycloak and migrated all security across the platform onto Keycloak — single sign-on, role/realm modeling, and a unified identity layer for the company's products.
Self-initiated builds and research projects — exploring product ideas, stacks, and patterns outside of day-job work.
Job Recruitment Management System
Self-initiated research project — a cross-platform recruitment system pairing a Flutter client (web, mobile, desktop) with a .NET service layer. Exploring matching logic, candidate flows, and multi-tenant org structure.
Multi-vendor marketplace with payments & realtime
A multi-vendor marketplace inspired by Facebook Marketplace — personal sellers, company storefronts, staff/roles, inventory, payouts, and reporting. Trilingual (Khmer · English · Chinese), KHQR payments, WebSocket realtime.
Self-contained invoice manager for a real garage
A bilingual (Khmer + English) invoice management system modeled 1:1 on a paper invoice — customer + vehicle blocks, 18-row item table, totals, cash/check note. Runs as three Docker containers with a one-command spin-up.
The stack I use every day to design, build, ship, and keep things running.
I'm open to full-time roles, mobile/web outsourcing, and short-term builds. If you need someone who can move fast across backend, frontend, and mobile — let's talk.