
engineering-led studio · web, software, product
Made to work.Hard to ignore.
Websites, custom software, mobile apps and automation. Designed and built end to end.
CODEJ TECH
Home
Web · Software · Product
PT-BR / EN
From blueprint to live.
Íris Castro ImóveisReal-estate website · Property listings


Get the scope right.
Define the problem, the people using it and what a useful first release needs to do.
Design it. Build it.
Bring the interface, the data and the working details together. Review real progress, not just slides.
Prove it. Put it live.
Test the important paths, refine the experience and hand over a release with a way forward.
Built on long-running product engineering experience.
See our background01 / How we work
Every step, on a real project.
A senior engineering-led studio that designs and builds digital products end to end — from a conversion-focused website to a custom platform, a mobile app or an automated internal workflow. AI is part of how we execute, not the thing we sell.
- Remote-first · working across the Americas, Europe, Africa and India
- PT-BR / EN
- Led by a product engineer with 10+ years of experience
01 · Scope
First, understand the problem.

02 · Build
Real progress, not slides.


Eliora Moda FemininaIn production
The site's catalogue keeps up with the shop on its own, every day.
03 · Live
Tested before it goes live.

Support IT Services
The scene loads only where the device can carry it; elsewhere, a still image.

Alarcão Saboaria Artesanal
Customers choose, and WhatsApp opens with the order already written.
02 / What we do
The first impression.
The whole operation.
Considered design on the surface. Serious engineering underneath.
01Web design & development
Conversion-focused websites and marketing platforms.
- Marketing sites and landing systems
- Multi-language and multi-region content
- CMS and structured content models
- Analytics, SEO and Core Web Vitals work
02Custom software
Platforms, portals and internal tools with real data models.
- Customer and partner portals
- Back-office and operations tooling
- API design and third-party integration
- Data modelling and migrations
03Mobile applications
Cross-platform apps that ship and keep shipping.
- Cross-platform product apps
- Companion apps for existing platforms
- Store release and update pipelines
04AI & workflow automation
Automating the mechanical parts of how a business runs.
- Assisted drafting and classification workflows
- Data enrichment and cleanup pipelines
- Internal copilots over your own data
- Human-in-the-loop approval flows
05Digital product development
From an idea to a running product with a roadmap.
- Product discovery and scoping
- Design systems and interface architecture
- Technical architecture and delivery
- Iteration after launch
06Interactive & 3D experiences
Real-time, spatial and game-like interfaces on the web and on mobile.
- Real-time 3D and WebGL scenes
- Product configurators and visualisers
- Game-like interactive mobile features
- Motion and scroll-driven storytelling
A good place to start
Have something
worth building?
What kind of project do you have in mind?
Pick one and the message is written for you.
Remote-first · working across the Americas, Europe, Africa and India
hello@codejtech.dev
