Search pages, services, tech stack, and blog posts
Built for humans, by humans.
Websites, apps, and enterprise systems, with AI agents at the core. We handle the build so you can focus on the business.
A Major is a Singapore-based software agency. We build websites, mobile and desktop apps, browser extensions, and enterprise systems and stay directly involved from the first conversation to launch day. If it runs on a screen, we can build it.
We're also the team behind 
Ryu, end-to-end managed infrastructure for AI agents. Pick your engine (Hermes, OpenClaw, ZeroClaw, or any compatible agent) and Ryu handles everything around it.
Live activity
How we ship
We define what to build. Requirements, user flows, and technical decisions made upfront so nothing gets lost in translation.
Fast, iterative development with regular check-ins. You see progress weekly, not just at the end.
Full deployment, handover, and documentation. We make sure it runs in production before we call it done.
Most agencies make you wait months, charge for every email, and hand your project to someone you've never met. We do the opposite: scope upfront, direct access to the founder, and a finished product inside 30 days.
Design, engineering, and project management under one roof. No subcontracting, no surprises, no scope creep.
years of engineering experience
projects delivered
Jia Wei Ng, FounderI've seen too many businesses pay good money for software they can't maintain, understand, or grow with. That's the problem we exist to solve.
You get direct access to me throughout. Not a project manager relaying messages.
What you get
Fixed scope, no billing surprises
Direct access to the founder
Fast turnaround, no long waits
Design, engineering, PM in one team
Full deployment included
Post-launch support available
Clean, documented handover
No subcontracting, ever
Weekly progress updates
You own everything we build
Fixed scope, no billing surprises
Direct access to the founder
Fast turnaround, no long waits
Design, engineering, PM in one team
Full deployment included
Post-launch support available
Clean, documented handover
No subcontracting, ever
Weekly progress updates
You own everything we build
Websites that load fast, look sharp, and turn visitors into leads. Not just good-looking mockups.
Full-stack web applications built for real users. From simple tools to complex platforms.
iOS and Android apps, built natively or cross-platform depending on what your users need.
Chrome, Firefox, and Edge extensions that integrate directly into the tools your users already use.
A Major Assistant
AI-powered writing helper
Client Portal
Project updates & file sharing
Lead Capture
Qualify visitors, book calls
Internal tools, dashboards, and integrations built to handle real business complexity.
Subscription software built to scale. Auth, billing, multi-tenancy, and everything else included.
Standalone design work. User flows, wireframes, prototypes, and high-fidelity interfaces.
CI/CD pipelines, cloud setup on AWS, GCP, or Azure, and infrastructure that doesn't fall over.
Slow software loses users. We find the bottlenecks and fix them in code, queries, or infrastructure.
Not sure what to build first? We'll help you define the smallest version that proves the idea.
Backlog
Building
Shipped
Old, brittle software rebuilt on a stack that can actually support where your business is going.
Before
After
Moving offline or manual processes online. We've done it for hospitals, logistics, and finance.
Software built for agencies or businesses to rebrand and resell as their own product.
Technical SEO baked in from the start. Fast sites, clean markup, structured data, and content that ranks.
We don't just hand over code. We ship it, host it, and make sure it runs in production.
Not sure what you need? We'll help you figure it out before you spend a dollar on development.
Landing pages, ad copy, and website copy that converts. Written fast with AI, refined by humans.
Draft
SEO articles, blog posts, and thought leadership that build organic traffic over time.
Welcome sequences, drip campaigns, and newsletters that retain users and move leads to close.
API references, developer guides, and user docs written by engineers: accurate, complete, and scannable.
GET /v1/users/:id
Returns a user object.
{ "id": "u_1", "name": "..." }
Eliminate manual, repetitive work with n8n, Make, and custom integrations that run in the background.
0 runs completed
Custom AI assistants trained on your own content that answer questions accurately, 24/7.
Jia Wei holds a Bachelor's degree in Computer Science from the University of Glasgow and has over 7 years of professional experience in software engineering. He has led projects across web, mobile, and enterprise platforms.
Prior to A Major, Jia Wei served as Business Director at 
Base 7, designing and building apps for clients across industries. He also led development of a medicine delivery routing system for Singapore's public hospitals at Better Age Solutions, and delivered blockchain-based enterprise applications for document provenance and commodity tokenisation at 1Citadel.
At A Major, Jia Wei remains personally involved in every engagement. You are not handed off to a junior designer or an outsourced team. Your project is led by the founder, with direct access throughout.
Career journey
1Citadel
2019
Better Age Solutions
2022
Univ. of Glasgow
2023
Base 7
2025
A Major
2026
Jia Wei Ng, FounderIn music theory, A Major is the key that defines the structure, letting every instrument play in harmony. That's what we build.
Have more questions? Get in touch and we'll get back to you within 24 hours.
We are partners with the world's leading technology companies
Tell us what you're building. We'll respond within 24 hours.
We limit intake each month so every project gets the focus it deserves.
