Advisory
Senior technical judgement for founders and SMEs without a CTO: from a 1–2 week tech audit to building your product.
When it makes sense
- You have a product idea or an early MVP, but nobody on the team owns the technical decisions.
- You are about to spend serious money on software or an agency, and want an independent view before you sign.
- Your operations run on spreadsheets and manual work, and you want them automated without hiring a tech team.
Ways to work together
Tech audit / roadmap sprint
Fixed price, 1–2 weeks.
- Included
- A review of your code, architecture, infrastructure, team and vendors, with interviews and hands-on checks.
- You get
- A written report with the risks ranked, and a technical roadmap you can act on, with or without me.
Fractional CTO
Monthly retainer.
- Included
- A set number of days a month for technical strategy, architecture decisions, hiring and vendor selection, and a seat at product and leadership meetings.
- You get
- Someone senior who owns the technical decisions until you are ready to hire a full-time CTO.
Build
MVP or custom product.
- Included
- Design and development end to end: architecture, back end, front end, infrastructure and AI features, with tests and CI from day one.
- You get
- A product in production that your future team can take over, with the code, documentation and infrastructure in your name.
Recent work
Impact Social Cup
Technical lead (freelance)
2025–2026
Designed and built the platform end to end: architecture, back end, front end, AWS infrastructure and AI features.
- NestJS
- Angular
- PostgreSQL
- AWS
Somos Héroes
Web developer (freelance)
2026
A web tool for schools: students write a story step by step through the hero's journey, guided by the app, and turn it into audio; teachers score the stories, and a shared map shows every participating school.
- Firebase
- React
- TypeScript
Industrial SME (Spain)
Technical advisor and developer (freelance)
Since September 2026
No in-house tech team. Automated operational and payroll workflows from field data; ongoing advisory work.
- SQL Server
- Zoho Inventory
- API integration
Digital55
COO, then strategic advisor
– present
COO of a software development company, leading its 40+ person technical team: development, project management, design and QA. Strategic advisor since September 2025.
- Angular
- .NET (C#)
- Azure
- AWS
- Capacitor
How I work
I build with AI as the multiplier: specialised coding agents handle the volume, and I make the decisions and own the quality bar. I review the results in depth, and experience tells me where things tend to break. That lets one senior person deliver what used to take a small team. The playbooks show the method in the open.
Tell me about your project
All fields are required.
Or write to jesus@perezpaz.es.