Software, drafted before it's built.
Tresyx is a software development company that treats every build like an engineering drawing: specified, load-tested, and signed off before it ships. We design and build the systems growing companies run on.
- ✓DiscoverRequirements & workflow mapped
- ✓DesignArchitecture & data model signed off
- ◐BuildIn active development
- ○ShipDeploy, document, hand off
Four disciplines, one team.
Every engagement draws from the same core team, so the handoffs that usually slow projects down — between design, backend, and infrastructure — simply don't happen.
Custom Software
Line-of-business applications, internal tools, and platforms built around how your team actually works — not how off-the-shelf software assumes you work.
Web & Cloud Platforms
Production-grade web applications and cloud infrastructure, provisioned for the load you have today and the load you'll have in two years.
Mobile Applications
Native and cross-platform apps for iOS and Android, built from a shared codebase where it saves money and native where it matters.
Systems Integration
APIs and middleware that get your CRM, payments, inventory, and reporting tools speaking the same language, reliably.
A four-stage build, start to ship.
The same sequence, every project — so you always know what stage you're in and what's due next.
Discover
We map your workflow, constraints, and existing systems before a line of code is written.
Design
Architecture, data model, and interface are specified and reviewed with you — the blueprint stage.
Build
Development in short, visible cycles, with working software in your hands every week.
Ship
Deployed, monitored, and handed off with documentation — plus support once it's live.
Built like it has to last.
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Tolerance
Fixed scope, fixed price
You get a spec and a number before we start — not a moving estimate.
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Materials
Boring, proven technology
We reach for the stack that's right for your problem, not the newest one.
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Ownership
You own the code, fully
Source, infrastructure access, and documentation transfer to you at delivery.
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Warranty
Support after launch
A fixed post-launch window is built into every engagement, not sold separately.
Client → API Gateway → Application Layer → Data Store
Three ways to work with us.
Most projects fall into one of three shapes. We'll tell you upfront which one fits, and what it costs, before you commit to anything.
Fixed-Scope Build
A defined product, spec'd and priced before we start. Best when you know what you need built and want a firm number and date.
- Fixed price, fixed timeline
- Weekly build check-ins
- Best for: new products, MVPs, replacing legacy tools
Team Augmentation
Our engineers embed with yours on a monthly basis, working your backlog under your process. Best for ongoing product work.
- Monthly retainer, cancel anytime
- Direct access to your assigned engineers
- Best for: extending an in-house team, sustained roadmaps
Systems Audit
A short, focused review of an existing system — security, performance, or architecture — with a written report and prioritized fixes.
- 1–3 week engagement
- Delivered as a written findings report
- Best for: pre-acquisition diligence, performance issues, security review
Have a build in mind?
Tell us what you're trying to run, replace, or automate. We'll tell you honestly whether custom software is the right call.
Questions we get on the first call.
How long does a typical build take?
Most fixed-scope builds run 6–14 weeks depending on complexity. You'll get a specific timeline as part of the Design stage, before any development starts.
Who owns the code once it's finished?
You do — fully. Source code, infrastructure access, and documentation transfer to you at delivery. There's no vendor lock-in and nothing held back.
Do you work with an existing codebase, or only new builds?
Both. A meaningful share of our work is extending or fixing systems someone else built. The Discover stage includes an honest read on what's worth keeping.
What happens after launch?
Every engagement includes a fixed post-launch support window at no extra cost. After that, you can move to a maintenance retainer or take it fully in-house — your call.
How much does a project cost?
It depends on scope, but you'll have a firm number before we start any billable work. Reach out with a short description and we'll give you a realistic range fast.
Do you sign NDAs before scoping calls?
Yes. If your project involves sensitive data or an unfiled idea, we'll sign your NDA or ours before the first detailed conversation.
Let's spec out your project.
Reach out with a short description of what you need — we typically reply within one business day with next steps.