From idea to a product ready to launch. Fast!
I work with founders and teams to design, build, and launch web and mobile products end-to-end, from strategy and architecture to frontend, backend, APIs, and mobile development.
Let's chat first, no strings attached.
We'll do a quick 1:1 to see what you need, and then we can both decide if it makes sense to team up.
Companies I've worked with
Custom digital solutions for your business.
Websites, MVPs & Prototypes (PoCs)
From high-converting websites to functional MVPs, turn your idea into a polished digital product in just a few weeks. Validate your concept, reach your audience, and get to market faster.
Custom SaaS & Dashboards
Build software tailored to the way your business operates, or bring your data together in one place. Automate processes, track key metrics, and gain a clear view of your operations to make faster, more informed decisions.
Widgets & Integrations
Add new functionality to your product or connect the tools and services you already use. Fast, easy-to-integrate solutions designed to improve the user experience and deliver results.
Examples of what you can develop
Engineer. Product Thinker. Problem Solver.
I'm a Software Engineer and AI Engineer, with a degree in New Communication Technologies from the University of Aveiro, combining senior-level technical expertise with a strong product mindset. Throughout my career, I've built and launched products and systems for enterprise clients such as Scotiabank, Marsh McLennan, and Coast Capital Savings, working across the entire product lifecycle, from architecture and development to production. I work with founders and teams to turn ideas into solid digital products, solve complex technical challenges, and build systems designed to scale. I combine software engineering, artificial intelligence, and product thinking to turn business needs into simple, robust, and scalable solutions.
Enterprise Experience
Snyk · Probely · ITSector · Scotiabank · Marsh McLennan · Coast Capital Savings
Performance
Up to 700% faster applications
Product Impact
Checkout & onboarding optimization (improving onboarding, reducing churn & maximizing revenue)
Tech Leadership
Architecture · Mentoring · Delivery
Technical Expertise
Testimonials
Words from people who've trusted me to build.
“We were looking to upgrade our website to something sleeker, more efficient, and fully aligned with our brand image. The final result completely blew past our expectations, delivering a highly professional design, cutting-edge technology, and a seamless user experience that has boosted our lead generation and client trust. On top of that, the fast turnaround time and exceptional support throughout the project were outstanding.”
André Santos
CEO at Tech Identity
“I needed a custom scraper to extract data from a highly complex platform, and João absolutely delivered. The tool is rock-solid, fast, and incredibly accurate. Beyond his technical skills, João was a pleasure to work with. He's always available, patient with our questions, and genuinely invested in getting it right. He made a complex project feel incredibly easy.”
James Garcia
Real Estate Broker at Private
“João turned our complex SaaS MVP and AI dashboard into reality flawlessly. The final product is fast, intuitive, and beautifully built. What sets João apart is his exceptional support and proactive attitude. He didn't just code, he guided us through every step with great energy and transparency. He's the ultimate solo partner for high-quality product delivery.”
Rosalyn Espinoza
CTO at Private
Pricing Models
Tailored investment structures for your specific requirements.
Project-based
Custom MVPs, widgets, and SaaS projects built production-ready, senior engineering, thoughtful architecture. A standard MVP covers frontend, backend, database, authentication, and 2–3 core features, enough to launch, test, and learn from.
*Final price depends on complexity, scope, design needs, and timeline, defined together before any work begins. Ongoing maintenance and evolution plans available from €600/month.
Hourly Consulting
I take on select hourly engineering work for clients who need a focused build, micro apps, widgets, or lightweight tools that solve a specific problem quickly. I also consult for founders and teams who have a vision but need technical direction, turning uncertainty into a clear path forward.
Retainer
Ongoing maintenance, updates, and feature evolution, I stay close to your product so nothing breaks and everything keeps improving.
*Scope defined together. Light maintenance plans start at €600/month; active development retainers from €1,500/month.