Custom software
Purpose-built systems for the workflows off-the-shelf tools can't handle, engineered around how your business actually works.
Custom software solutions
We build custom software, web & mobile apps, and the technical strategy behind them, for enterprises, scale-ups, and founders who need it done right, the first time.
01 · What we do
Purpose-built systems for the workflows off-the-shelf tools can't handle, engineered around how your business actually works.
Interfaces people actually understand, researched, prototyped and tested before a line of production code is written.
Native-feeling apps for iOS and Android, from idea to app store: performant, polished and built to maintain.
Fast, findable and maintainable sites, from marketing pages to full web applications your team can grow into.
Clean interfaces between your systems, your partners and the tools you already use, so everything talks to everything.
Software that moves atoms: inventory, picking, routing and the systems that drive them on the warehouse floor.
// the challenges
01
You've bent your process around software that was never built for it, paying every month to fight the tool. We build the system around your business, not the other way around.
02
Ideas pile up faster than your team can ship them, and the roadmap keeps slipping. We plug in as one senior team and clear the road to production.
03
Everyone's shipping AI features, but few can tell you when the output is wrong or why. We keep a human accountable for every line that ships.
04
Handoff came with no docs, no tests, and code nobody wants to touch. We build to be maintained, and we stay to prove it.
05
The demo impressed everyone. Months later it's still "almost ready" to launch. We ship in visible increments, so "done" actually means done.
06
What worked for a hundred users is buckling at ten thousand, and growth is exposing the cracks. We engineer for production load from day one.
02 · How it works
We dig into the problem, the users, and the constraints, and agree on what success actually looks like.
Architecture, data model, and interface, planned so the build is fast and the system lasts.
Shipped in tight, visible increments. You see working software early and often, with no black boxes.
We deploy, monitor, and harden, then keep improving as your product and your users grow.
03 · Selected work
Microservice backend orchestrating shuttle fleets, loads and locations — behind a module-federated frontend their teams ship independently.
Test-drive session booking for JMC, GAC, Changan, Chery and Lepas — scheduling, capacity, check-in, indemnity forms and reporting across every brand stand.
Newsletters, blogs, custom forms and investment calculators — built from scratch, no WordPress in sight.
// AI-accelerated delivery
$ t9 scaffold --api warehouse-sync ✓ 214 files drafted by AI in 3.1s $ t9 review --by human.engineer » reading every line... ✓ 37 issues caught. 37 fixed. $ git commit -m "shipped & understood"
We use AI to move fast on the repetitive 80%. The 20% that makes or breaks your product stays human.
Nothing ships that an engineer hasn't read, tested and can defend. We know what's inside your product.
Anyone can prompt a chatbot. You're paying for the experience to know when the output is wrong, and how to fix it.
The result: senior-quality software delivered in a fraction of the traditional timeline.
04 · About
twenty9 Software Solutions is an independent software studio built around a simple promise: understand your problem deeply, then design and build the right solution for it, end to end.
From the first conversation through launch and beyond, you work with a team that's accountable for the outcome: clear communication, no surprises, and software built to last.
10+
years building production software
1:1
a direct line to the people building it
∞
ideas worth making real
0
corners cut on quality
Let's build
Tell us what you're trying to build. We'll come back with a clear, senior take on how to get it shipped.
Start a project
We'll come back with a clear, senior take on how to get it shipped, usually within a day.