Software your European
roadmap can rely on.
Terralyze designs, builds and scales digital products for businesses across the EU and UK, from validated MVP to enterprise platform, delivered by a dedicated senior engineering team based in Spain.
Direct Collaboration: Senior engineers working in your sprints, code repositories, and communication channels.
European Standards: Full GDPR compliance, EU data residency, and transparent milestone delivery.
Production Velocity: Battle-tested architectures in Next.js, Node, Python, and modern cloud platforms.
Our Services
Nine disciplines, one accountable team.
Pick a single service or lean on the full stack; every engagement is staffed by the same senior team from discovery through to production support.
Custom Software Development
Bespoke platforms built around how your business actually runs.
We design and build software from the ground up, replacing spreadsheets, patched-together tools, or systems that no longer fit. Every build is scoped around your workflows first, architecture second, so the result gets adopted instead of shelved.
- Enterprise & SaaS platforms
- Internal tools & back-office systems
- Legacy modernization & re-platforming
- Custom CRM, ERP & workflow engines
- API-first, headless architectures
Why Terralyze
Engineering excellence built for modern digital products.
We combine senior software craft, scalable architecture, and high delivery velocity with Spanish and European regulatory rigor.
GDPR & EU Compliance by Default
Data protection impact assessments, EU data residency, and enterprise regulatory compliance are built directly into system architecture from day one.
Senior Engineering Craft
The senior engineers and architects scoped in your proposal are the ones writing your code, with no bait-and-switch to junior benches.
Product & Business Velocity
We think in business outcomes, user retention, and long-term maintainability, delivering working software rapidly rather than just closing tickets.
Transparent Sprint Execution
Direct access to engineers, live sprint trackers, automated CI/CD pipelines, and weekly working demos with zero black-box handoffs.
Modern Cloud & AI Architecture
Production-grade systems built for high throughput, automated observability, robust security, and scalable cloud infrastructure.
Security-First Development
ISO 27001-aligned practices, continuous dependency vulnerability scanning, and strict signed-off access control across every environment.
Technology & Stack
A stack chosen for the problem, not the trend.
Selected Work
Recent builds for European teams.
Fintech & Payments
Rebuilding a payments ledger for 40x scale
Migrated a monolithic payments core to an event-driven architecture ahead of a Series B, without a minute of scheduled downtime.
Healthcare
A GDPR-native patient portal
Designed and built a patient scheduling and records portal with data residency in an EU region and a full DPIA baked into the architecture.
Logistics & Mobility
Route optimisation for a logistics fleet
Built a predictive routing engine that cut fuel spend and gave dispatchers a live map of the entire fleet.
Retail & eCommerce
A headless storefront for a DTC retailer
Replaced a legacy platform with a headless storefront, lifting mobile conversion within the first full quarter live.
Engagement Models
Three ways to work with us.
Every model is run by the same delivery team and reported the same way: what changes is how the work is scoped and billed.
A defined outcome, a defined price.
Best for a well-defined project with a clear deliverable and deadline.
We map your goals, constraints and success metrics in a 60-minute working session.
You receive a comprehensive scope document with clear milestones, deliverables and a transparent quote.
Terms are signed and a named delivery team is onboarded within five working days.
Work ships in reviewable milestones with a demo and sign-off at each stage.
You receive full source, documentation and a 30-day defect-fix warranty period.
Industries & Domains
Domain context, not just a delivery team.
Regulation, integrations and buying cycles differ by sector; our teams carry that context in from day one.
Client References
What it's like on the other end of the call.
“Terralyze slotted into our sprint cadence in a week, not a quarter. Nine months on, the team writes code we would have written ourselves.”
“We needed a partner who understood GDPR before we asked, not after. The data protection assessment was on the table in our first working session.”
“Terralyze feels like a natural extension of our in-house team. The velocity and architectural rigor they brought allowed us to hit our product milestone two months early.”
“Clear scoping and senior engineering leadership from day one. The team shipped our core infrastructure flawlessly on schedule.”
Frequently Asked Questions
Frequently asked, answered plainly.
Terralyze is incorporated and based in Spain. Our distributed engineering squads operate across Spain and Europe, giving you direct engineer-to-engineer collaboration, high product velocity, and full compliance under Spanish and EU regulatory frameworks.
Every engagement starts with a data mapping exercise. Where regulation or client policy requires it, infrastructure is provisioned in an EU region and a data processing agreement is signed before any data moves.
Three: Fixed Scope for well-defined projects, Dedicated Team for ongoing product work, and Product Partnership for founders who need a build-and-iterate partner. Every model includes transparent sprint planning and clear milestone deliverables.
Yes. We start with a short paid audit covering architecture, code quality, test coverage and security before quoting the work, so you know what you are inheriting before we touch it.
Weekly written updates plus a live sprint board on your tracker of choice. Dedicated Team and Product Partnership engagements include a recurring demo at the end of every sprint.
Every Fixed Scope engagement includes a 30-day warranty. Ongoing support and enhancement runs on a retainer sized to how actively the product is changing.
A Fixed Scope project typically kicks off within five working days of signature. A Dedicated Team is usually shortlisted and interview-ready within a week.
Get in Touch
Tell us what you're building.
Share a few lines about the project and a member of our team in Spain will reply within one business day with next steps.
- info@terralyze.com
- Location
- Madrid & Barcelona, Spain
- Response
- Within 1 business day, CET