Hey!

Full-Stack Developer · .NET / Angular / Azure · Singapore

9+ years building secure, large-scale systems for finance, government and healthcare, and AI-assisted products built with engineering discipline.

Read my medium Contact me here Download CV

About Me

I am a full-stack developer with over 9 years of professional experience, currently a System Analyst at the Central Provident Fund Board in Singapore. I have built and supported systems for banks, government bodies, healthcare and manufacturing, mostly with C#, .NET, Angular, TypeScript and Azure.

I care about security, maintainable architecture and shipping on time. Lately I build personal products with AI agents such as Claude Code and Codex, backed by specs, tests and automated quality gates.

So if you are interested,Contact me!

Projects

AI-Assisted Personal Projects

In Development

Social Media Management App

Solo Developer, AI-Assisted Personal Project

An AI-driven social media workflow, currently focused on Facebook Page automation: researching post ideas, drafting captions, generating media and approval-gated publishing and scheduling. Creative stages use reusable agent instructions, while publishing stages remain deterministic in code.

Highlights

Research trends and competitor pages to pitch post ideas through reusable agent instructions
Draft captions in each page's brand voice and generate images with the OpenAI API
Approval gates before any content is generated or goes live
Publish or schedule text, photo and video posts through the Meta Graph API at each page's best time
Keep the creative stages agent-driven while the publishing stages stay deterministic in code

Node.js
OpenAI API
Meta Graph API
AI Agents

In Testing

StockIt

Solo Developer, AI-Assisted Personal Project

View live site

A configurable, multi-tenant, mobile-first stock and sales platform with catalogue and supplier management, batch tracking, immutable inventory movements, branch-level stock, sales, receipts, reporting and role-based access control.

Highlights

Multi-tenant stores and branches with default-deny row-level security and role-based access
Configurable catalogue with dynamic item fields, suppliers and batch tracking
Immutable inventory ledger for receiving, adjustments and FIFO batch allocation
Mobile sale flow with idempotent confirmation, draft autosave and 80 mm/A4 receipts
Operational reports for daily sales, stock levels and estimated gross profit with CSV export
Release gates covering unit, database, accessibility and Playwright browser tests

Angular 22
TypeScript
Angular Material
Supabase
PWA
Playwright
Docker

In Testing

FinPal

Solo Developer, AI-Assisted Personal Project

View live site

A personal portfolio tracker for portfolio value, dividends, asset allocation, manual assets and net worth, with statement upload and manual transaction entry. The backend follows Clean Architecture with an Angular frontend.

Highlights

Track portfolio value, unrealized gain/loss, cost basis and multi-currency cash balances
Dividend income history with forward estimates, plus asset allocation breakdowns
Broker statement upload with an import review step, and manual transaction entry
Manual assets and net worth tracking
Clean Architecture .NET 9 backend with deploy-time-only database migrations

.NET 9
ASP.NET Core Web API
EF Core
Angular 19
PostgreSQL
Clean Architecture
Playwright

In Development

Ember Survivor

Solo Developer, AI-Assisted Personal Project

A portrait mobile action-survivor game with automatic combat, escalating waves, XP and upgrades. The project uses a deterministic, data-driven design where appropriate, together with automated tests, build checks and performance validation gates.

Highlights

One-thumb arena gameplay with automatic attacks, escalating waves, XP and upgrade choices
Deterministic simulation, soak-tested with 1,000 seeded runs
One command runs the tests and builds Windows plus signed Android APK/AAB artifacts
On-device stress test of 500 enemies over five minutes as a performance gate

Godot 4.7
GDScript
Android
gdUnit4
Automated build/test tooling

Professional Projects

Jan 2024 to Now

Central Provident Fund Board

System Analyst, Central Provident Fund Board, Singapore

A large, multi-product platform that runs Singapore's provident fund, covering healthcare, housing, retirement and more. Different departments own each product; my team supports the whole application across all of them.

Team Size: 10

Key contributions

Investigate and fix critical production defects quickly to keep member-facing services available
Maintain scheduled jobs and other background services in daily operation
Monitor security threats against the system and assess their impact
Fix non-production defects so internal users can test new releases without blockers
Support testers, cross-functional teams and front-line staff with production queries from CPF members

.NET Core
Microservices
Windows Services
Azure Cloud
Azure DevOps
Angular
MS SQL
SonarQube

May 2023 to Dec 2023

Banking and Credit Union System

Associate Tech Lead, Zone24x7, Colombo

A security-critical platform for a banking and credit union client, covering appointments, lobby assistance, data analysis and detailed per-employee reporting. Regular penetration tests and SonarQube audits shaped every change.

Team Size: 53

Key contributions

Introduced a new security layer to prevent data breaches
Upgraded the front end from Angular 9 to 16, closing security gaps and giving a smoother application
Implemented core business logic and supported the team leads in running a 53-person team
Ran regular developer syncs and unblocked developers on the tech stack
Reviewed pull requests for code quality and for issues that would fail penetration tests or security audits
Planned AI-driven analysis and predictive models over about 10 years of collected data

.NET Core
Ocelot
CQRS
RabbitMQ
Azure DevOps
Angular
MS SQL
SonarQube

Oct 2021 to Dec 2023

Garment Factory Management and Printing System

Senior Software Engineer, IronOne Technologies and Keen Mind Mobile Solutions, Colombo

A cloth printing management suite for a leading Sri Lankan apparel exporter, covering the whole flow from designers creating artwork to the warehouse that prints it and sends it to distribution.

Team Size: 12

Key contributions

Led the front-end team, and later both front-end and back-end teams, including client meetings
Designed the front-end architecture and state management, and built the Angular 13 front end
Built .NET Core services with Azure Functions, Azure Service Bus and Swagger documentation
Managed the Azure cloud resources for the project
Reviewed code for junior developers and colleagues

.NET Core
Azure AD
Azure Service Bus
Azure Functions
Azure DevOps
Angular
MS SQL

Jan 2022 to Dec 2023

Video Consultation Platform

Senior Software Engineer, IronOne Technologies and Keen Mind Mobile Solutions, Colombo

A video consultation platform for a European healthcare brand. Consultants run subscription-based video sessions with patients, record session events and progress, and manage everything from a role-based dashboard.

Team Size: 9

Key contributions

Customised the Jitsi Meet app to the client's requirements
Built a new Angular 12 dashboard for the organisational structure and business settings
Debugged and fixed issues in the Node.js back end
Supported the client with custom app configurations

Node.js
Cognito
React
Angular
Docker
Jitsi
MySQL

How I build with AI

AI agents write a lot of my personal-project code. What makes that code trustworthy is the engineering around them: specs before code, one written contract for every agent, and automated gates that decide when work is done.

Specs before code
Every change starts as a written spec, plan and task list that the agent implements against, so the intent is reviewable before any code exists.
In practice: FinPal has been built through 55 numbered GitHub Spec Kit features, from the MVP to production readiness.
One contract for every agent
A single AGENTS.md states the project's invariants for any agent, whether Claude Code or Codex. Lint rules and tests enforce the rules, so the agent can't simply ignore them.
In practice: In StockIt, ESLint blocks direct table writes and any data access from components, and money is only ever exact minor units.
Gates decide when work is done
An agent reports what it built and the evidence for it. One command runs the same format, lint, type, test, build and security checks as CI.
In practice: Ember Survivor runs 1,000 seeded simulation soaks and on-device performance gates before a milestone counts as passed.
Several agents, clear ownership
When more than one agent works on a project, each owns specific paths, and decisions go into an append-only log so later sessions inherit the reasoning.
In practice: On Ember Survivor, Codex owns simulation and performance while Claude Code owns presentation and leads integration merges.
Humans approve, code executes
Agents handle the creative and exploratory work. Anything with real-world effects stays deterministic in code and waits for a person's approval.
In practice: The social media app drafts posts with agents, but publishing to Facebook happens only after explicit approval.
Local and cloud models
I choose the tool for the job: Claude Code, Codex, Copilot and OpenCode with MCP tools, and local models through Ollama and LM Studio for private or offline work.
In practice: Agentic workflows cover implementation, refactoring, debugging, testing and repository analysis.