Our Stack
What We Build
Your operations,
on autopilot.
We don't build features. We build infrastructure. The kind that scales with you, automates the mundane, and gives you back your time.
Analytics Dashboards
Stop using only the KPIs your software gives you. Build your own metrics and track what actually moves the needle.
Data Syncing & Integration
You shouldn't have to update the same data twice. Get a single source of truth across all your tools.
Workflow Automation
Your team shouldn't waste time on busywork. Contracts, onboarding, invoices: we automate the repetitive stuff so you can focus on growth.
AI Integration
AI should do more than just chat. GPT, Claude, custom models: wired into your ops for doc processing and smart routing.
Who We Build For
Different industries,
same problem.
Manual processes eating your time. We fix that.
55K+
lines of code
Engineering / Energy
Less Admin,
More Engineering
How an engineering consultancy digitised its entire project lifecycle with custom software and 90 live automations.
Read case study
2 wks
to deploy
Pool Services
Don't Drown in Data
Read case study
45 hrs
saved weekly
Real Estate
Selling Land, On Autopilot
Read case studyWe've also built for
Where We Work
London-based, worldwide projects
Luckily GMT allows us to work with clients all around the world.
How We Work
Start simple,
keep shipping
The more you build, the more you scale, the more you can build.
Discovery
We learn your business, your pain points, and what success looks like.
Scope
Clear deliverables, timeline, and fixed pricing. No surprises.
Build
Weekly demos, async updates. You always know where things stand.
Deploy & Iterate
We deploy, train your team, then circle back to scope the next thing.
Why Costanera
You've been burned before.
We get it.
The agency that missed every deadline. The freelancer who ghosted. Here's why we're different.
Fixed pricing, always
We scope it, we price it, we stick to it. No hourly billing, no scope creep surprises. You know the cost before we write a single line.
Founder to founder
You talk directly to the people building your product. No account managers in between.
Battle-tested patterns
Over a thousand patterns shipped across clients. Every project builds on proven architecture.
Full transparency
Weekly demos, async updates, shared project boards. You always know where things stand. No surprises, ever.
"We shipped our first feature in 3 weeks."
James R.
Series A Fintech, SF
Ready to build something
cool?
Let's discuss your project. We'll provide honest feedback and a clear roadmap—whether we're the right fit or not.
eduardo@costanera.uk
We typically respond within 24 hours
How AI Analyzed 11,000 Messages to Reduce Churn
A home services company was drowning in customer messages. We built AI that scores, flags priorities, and surfaces at-risk customers before they churn.
Stop Letting Call Transcripts Rot in Folders
Every client call you've ever had becomes searchable, scoreable, and actually useful. Here's how to build a vector database pipeline that makes it happen.
How to Automate Lead Qualification When Your Tools Can't Filter Your ICP
Your search tools filter on 3 criteria. Your ICP has 10. Here's how to build an AI scoring system that qualifies leads automatically.
Why AI Automation Is Not About Replacing Humans
The real value of AI automation isn't cutting headcount—it's giving your team back the hours they lose to repetitive work so they can focus on what matters.
4 Keys to Growing Your Agency
After building systems for dozens of businesses, I keep seeing the same patterns. Four things that actually matter for scaling your agency.
You Don't Need AI. You Need Software.
Most 'AI use cases' SME owners describe are actually just scripts. Here's how to think about building systems when you don't have an enterprise IT budget.
How AI Analyzed 11,000 Messages to Reduce Churn
A home services company was drowning in customer messages. We built AI that scores, flags priorities, and surfaces at-risk customers before they churn.
Stop Letting Call Transcripts Rot in Folders
Every client call you've ever had becomes searchable, scoreable, and actually useful. Here's how to build a vector database pipeline that makes it happen.
How to Automate Lead Qualification When Your Tools Can't Filter Your ICP
Your search tools filter on 3 criteria. Your ICP has 10. Here's how to build an AI scoring system that qualifies leads automatically.
Why AI Automation Is Not About Replacing Humans
The real value of AI automation isn't cutting headcount—it's giving your team back the hours they lose to repetitive work so they can focus on what matters.
4 Keys to Growing Your Agency
After building systems for dozens of businesses, I keep seeing the same patterns. Four things that actually matter for scaling your agency.
You Don't Need AI. You Need Software.
Most 'AI use cases' SME owners describe are actually just scripts. Here's how to think about building systems when you don't have an enterprise IT budget.
You Don't Have to Be Amazon to Have Logistics Tech
We built route planning software for a non-profit cat shop doing 40 deliveries a day. Here's how it works and what it saved them.
AI's Not Working for You? Maybe You're Being Unfair to It
The difference between AI that disappoints and AI that delivers comes down to one thing: context. Here's how to give it what it actually needs.
If Slow Contracts Are Costing You Sales, Here's a Fix
A land sales client was losing deals to slow contract turnaround. We built a system that gets contracts signed before buyers change their minds.
Zapier vs Make vs n8n: The 80/20 Comparison
Zapier, Make, and n8n each solve automation differently. Here's an honest comparison so you pick the right tool without wasting months on the wrong one.
3 Conditions for a Successful AI Implementation
AI has outsized returns under specific conditions. Here's what separates real wins from expensive experiments—and how to tell which one you're building.
You Don't Have to Be Amazon to Have Logistics Tech
We built route planning software for a non-profit cat shop doing 40 deliveries a day. Here's how it works and what it saved them.
AI's Not Working for You? Maybe You're Being Unfair to It
The difference between AI that disappoints and AI that delivers comes down to one thing: context. Here's how to give it what it actually needs.
If Slow Contracts Are Costing You Sales, Here's a Fix
A land sales client was losing deals to slow contract turnaround. We built a system that gets contracts signed before buyers change their minds.
Zapier vs Make vs n8n: The 80/20 Comparison
Zapier, Make, and n8n each solve automation differently. Here's an honest comparison so you pick the right tool without wasting months on the wrong one.
3 Conditions for a Successful AI Implementation
AI has outsized returns under specific conditions. Here's what separates real wins from expensive experiments—and how to tell which one you're building.