I'm João — a senior product engineer who helps founders and teams shape, build and evolve ambitious software products, with AI where it creates real value.
Bring me in to launch the thing you've been describing for months, or to sit inside your team as the engineer who also thinks about the product.
Same approach whether it's a brand-new idea or a product with ten years of history behind it.
Shape the idea, make the right technical calls early, and ship a focused first version without losing sight of the product.
Find where AI genuinely improves the product, then turn that opportunity into a reliable feature users actually want.
Join an established team to improve delivery, evolve the product, and bring senior engineering judgement to the work.
Understand the problem, the users, and the outcome that actually matters.
Turn the opportunity into a focused product and technical plan.
Ship a reliable first version and keep the feedback loop short.
Use real usage to improve the product, the tech, and the next decision.
Scalable software across a lot of very different businesses — modern product development, AI-assisted workflows and LLM-powered features.
Building a SaaS platform from the ground up so businesses in Australia can deliver video consultations and unlock insights for house inspections, electrification and more.
A specialty-coffee platform to discover beans, cafés and roasters based on personal taste — built from my own need, and used as a learning-by-doing project.
Anti-money-laundering compliance software and KYC for professional services, keeping clients on the right side of local regulation across several European countries.
Migrated an Ibiza real-estate platform from PHP to Rails with live users, moved the infrastructure to AWS, added Idealista integrations and shipped a full redesign.
Integrated Foodpanda, Uber Eats and Grab across Singapore, the Philippines and Australia — 1000+ daily orders — plus a coupon system for restaurant campaigns.
Solo engineer leading development: a full website redesign with the UX/UI team, and custom architecture to bring Unity 3D worlds into the web platform.
Peer-to-peer storage for the Dutch market — rent out unused space at home. Led full-stack development and supported business decisions for 3+ years.
Let's build something useful together — an idea from scratch, or the next chapter of what you already run.
Different businesses, same job: understand the domain fast, then build something people can rely on.
Real problems I've run into or heard people complain about — usually an excuse to push an LLM API somewhere new and see what holds up.
Turns real-estate listing photos into realistic post-renovation visualisations, so buyers and agents can judge a property's potential before spending a cent.
A multi-tenant LMS for invite-only internal training: step-by-step courses with video, text and quizzes, verifiable certificates, SSO and audit reporting.
Any YouTube DJ set into a Spotify playlist in one click. LLM parsing pulls the track names out of the mess, then builds the playlist for you.
Garmin data, lab reports, calendar context and DNA exports in one dashboard — time-series and correlation views across sleep, stress, activity and more.
There's usually something half-built on my laptop. If you want the same energy pointed at your product, say hi.
A product engineer with 8+ years building software and AI-powered products. Originally from Portugal, based in the Netherlands, working across Ruby on Rails, Next.js, React, AWS and LLM integrations and more to turn real problems into useful products.
I've built products from scratch and joined well-established teams to help them evolve what they already have. I like working right at the intersection of engineering and product: shaping ideas, making thoughtful technical decisions, and shipping AI features that create real value.