Clandestine Hours

Bringing small & medium business into the modernage.Talk to us

For the firms that hold up the real economy, the good tools were always priced for someone else. We change that, premium software, AI and automation, made affordable, built to fit, and yours to keep.
What we build Automation & AICustom softwareSites & platformswhatever the problem actually needs
From a small riverside town by the Tagus.
Alhandra · the Tagus · 38.93°N 9.01°W

The idea

Software should be invisible. Focus on your business.

The software you know
  • You wrestle with it
  • You bend your business to fit it
  • You outgrow it, then start over
The software we build
  • Precise: built to fit exactly what you do
  • Malleable: reshaped as your business changes
  • Invisible: out of the way, it just works

Precise and malleable. And, done right, invisible. That’s how you get software as good as the big firms use, at a price a real business can pay. You own it, or we host it for you. The longer arc: software is going malleable, shaped on demand, changed when you need it, not rented forever. We build for that, on our own products first, so by the time we build yours, it’s proven, not theory. Built to fit. Not to fill.

Work with us

Open for briefs
Built to fit. Focus on your business.

The software and AI the big firms keep to themselves, finally built for the small businesses left out. Shaped to exactly what you do, handed over, and yours to keep.

Partner with us

We build

For owners who’d rather run the business than the software.

Tell us the problem, not the solution. We build the exact tool for it, and you own it.

Automation & AIAgents and workflows that take the repetitive work off your hands.
Custom softwareInternal tools, portals and the systems you run on, built to fit.
Sites & platformsStorefronts, catalogues and digital products.See examples
Fixed priceOwn it or we host itNo lock-in
Priced to scope · start a brief
Architecture & advisory

We advise

For teams mid-build who want a senior call.

Planning a build, or deep in one that’s drifting? We review the architecture and tell you straight what we’d do. No retainer, no deck.

Architecture reviewThe right tools & agentsStraight answers
By the hour or fixed · remote or on-site
Backing

We back

For founders building something we’d use ourselves.

The occasional founder or product we believe in: a cheque, hands on the build, or just an idea that fits the mission.

Cheque or hands-onVery few a yearBy introduction
Highly limited · by introduction

We build our own, too.

An applied lab on the side: the products and open tools we ship for ourselves. It’s how we stay sharp, and proof we build for keeps, not just for clients.

6 products & open tools we’ve built

See what we’ve built

Plus a few engagements under NDA.

Proof

What clients say.

Work is so much easier now. Less moving around, no friction. They met us where we were, and they keep making things smoother.
HVAC manufacturerPortugalSee the work →

This could be you.

Got a problem worth solving? Tell us what you need.

Reach out →
Words people use for working with us
  • Honest
  • Helpful
  • Transparent
  • Straight
  • Direct
  • Clear
  • Candid
  • No-nonsense

Media

Portuguese tech, past the press releases.

Live on Instagram

For now it’s an Instagram account: news, sharp takes, and the bits worth knowing in Portuguese tech. What it’s growing into: real conversations with the people building here, founders, operators, engineers, on what worked, what broke, and the tangents worth the hour. In Portuguese, mostly.

News & takesBuilders & operatorsIn Portuguese
Instagram Spotify · soon YouTube · soon
See the show

Teach

We teach your team what we learned last month.

For the people doing the work
01
Session In your repo, on your problems A hands-on day in your codebase, on the work you actually ship.
½ – full day
02
Talk / Keynote Working with AI agents, straight The honest version: what changes, what doesn’t, and where they break.
30 min – 3 hr
03
Curated A workshop shaped to your stack We design it and run it with you, tuned to your tools and goals.
Tailored
04
Series From first agent to shipping Three to five sessions, homework between, until it’s in production.
4 – 8 weeks
Recent talks 50+ sessions delivered
Coupling is a choiceLisbon · University
Three agentic systems, taken apartLisbon · In-house

Start anywhere

No spec? Start anyway.

We take it from there
Sketch it for free in the AI tools you already have, then send us whatever comes out.

What matters is it gets solved. If you do it yourself, great — and we’re here if you ever need us.

Describe what you need in any of these and send us the result. Rough is fine. We turn it into something precise, that’s yours (or hosted by us).

Write it once — send it straight to us, or open it in your tool.

Prefer to sketch it first? Open it in your tool —

Know exactly what you want? Even better, send the visual, the link, or the spec.

Say hello

What brings you here?

Pick one. Tell us what you actually need, a few honest lines. No pitch.

Get something built

Tell us what you need. We say straight if we can build it, what it costs, and when. Fixed price. You own it.

Start a brief →
Come on the podcast

Building something real in Portuguese tech? Tell us what it is, and why now.

Pitch the show →
Train your team

A talk, a workshop, or weeks of hands-on. For the people writing your code, and whoever decides how it gets built.

Book a session →

FAQ

Common questions

What does Clandestine Hours build?
We build custom software, AI automation, and agentic workflows for small and medium businesses. Each build is scoped to the real problem and sized to what it actually needs, then handed over to you or hosted and run for you.
Do you hand the software over, or host it for me?
Both, your choice. We can hand over the code and infrastructure to your own accounts, or host, run, and keep improving it for you. You are never locked in.
How much does it cost?
Pricing is scoped to the work, not sold by the seat. Most engagements start with a short brief; we quote a fixed price or an hourly rate depending on the shape of the project.
Where are you based, and who do you work with?
We are based in Alhandra, a riverside town by the Tagus, near Vila Franca de Xira in Portugal, and work with clients across Portugal and remotely. We work in English and Portuguese.
What else do you do besides client work?
Beyond client builds we ship our own products, back the occasional founder, teach engineering and product sessions, and are building a Portuguese tech podcast.
How do we start?
Send us the problem you want to solve, and we help. You do not have to know the solution yet. We reply if it is a fit, and point you somewhere useful if it is not.

Ready when you are

Built to fit. Focus on your business.

Software, AI and automation, built to fit, and yours to keep. It grows with you and your business. We host it, hand it over, or train your team to run it. No lock-in.

Talk to us