I build custom web apps for Madrid founders who need to demo something real in 8 to 12 weeks without paying agency rates.
- Scope
- Ship
- Iterate
monthly subscription
Who this is for
Madrid founder post-validation who needs a production MVP in 8–12 weeks before the next raise or pilot. Madrid senior CTO talent pool is tight; bilingual senior engineering is rare.
The pain today
- Madrid senior CTO talent pool is tight; bilingual senior engineering is rare.
- Offshore teams miss Madrid-time standups and break the weekly cadence
- You don't have a senior engineer on staff yet
- Your demo has to work for investors, not just for screenshots
The outcome you get
- Production-grade web app live in 10 weeks
- Clean code a future hire can pick up without cleanup
- $4,999/mo post-launch for features, fixes, and scale
- Regular standups and daily async updates
What 10 weeks actually looks like
Week one is scoping and design. Weeks two through eight are build with a working demo every Friday. Weeks nine and ten harden the product for your first real users. Same shape I used at GigEasy to ship an investor-ready MVP in three weeks and the same engineering bar I held at bolttech. You see progress every week. No black-box three-month silence where an agency disappears and shows up with something you never asked for. Madrid senior CTO talent pool is tight; bilingual senior engineering is rare.
Production-grade web app live in 10 weeks
Why one senior beats a four-person agency team in Madrid
Agencies staff your project with a junior PM, a designer, and two mid-level developers. The senior who sold the work is on four other projects. I am the senior. I do the architecture, I write the code, I talk to you every day. You get the judgment you paid for instead of a project manager translating it through layers. For a 10-week MVP this is faster and produces a codebase you can hand to a future hire without three weeks of cleanup. CET overlap daily.
3s → 300ms: API response time.
Post-launch, without the cliff
The Applications subscription at $4,999/mo covers ongoing feature work, bug fixes, infra, and on-call after launch. Most customers stay on it three to nine months until they have hired their first full-time engineer. Cancel any month with 30 days notice. Code is yours, repo is yours, docs are yours. US-LLC to Spanish entity B2B contract. No agency lock-in and no surprise $200/hr change requests.
Recent proof
A comparable engagement, delivered and documented.
Rescued a slow API that was blocking user growth
Cuez is a live broadcast production tool used by TV teams on air across Europe. I inherited a backend API averaging 3 seconds per response and cut it to 300ms, while reducing infrastructure costs by 40% and leaving the system stable under real production load.
Read the case studyFrequently asked questions
The questions prospects ask before they book.
CET overlap daily.
US-LLC to Spanish entity B2B contract.
One task at a time. When one ships, you queue the next. You set priorities each sprint. No scope-change stress, no estimates, no change orders.
Spanish-fluent (conversational) and English-native delivery.
Yes, 100 percent, as work made for hire. Repo, design files, and docs transfer to you on payment.