Diego de Sousa

Freelance Product Engineer for fast websites and maintainable digital products.

I combine design, development, and product judgment to turn complex requirements into clear, accessible experiences built to grow.

From complex project to clear product Goals, users, constraints, edge cases, and real deadlines become a clear, accessible experience that is easy to maintain.
Projects with many moving parts Clear outcomes

Projects with many moving parts

  • Business context goals, risks, priorities
  • User needs tasks and friction points
  • Technical constraints data, integrations, limits
  • Edge cases states, errors, empty cases
  • Scope and deadlines what matters and what is urgent

Clear product

  • Clear priorities less noise, better decisions
  • Accessible interface usable by more people
  • Fast, stable frontend ready to grow
  • Verifiable quality performance, UX, and accessibility
  • Maintainable foundation clear code and easy iteration

Featured Projects

Photographic Archive of the Bank of Spain

  • Astro
  • WCAG AA
  • TypeScript
Development of the digital version of the Photographic Archive of the Bank of Spain in collaboration with Underbau. A project with a large collection of historical images developed to last over time.

Floralia

  • Next.js
Personal project of a web app that documents information about garden and orchard plants. Constantly developing and growing.

Las Manos

  • WCAG AA
Landing page for the Iberdrola General Shareholders' Meeting (2021). The goal was to present data and facts about "Diversity and Inclusion" in a visual, approachable, and human way.

Unveiling Memories

  • 11ty
  • Tailwind CSS
A major challenge for Iberdrola and Avantgrid where we had to transfer a lot of historical content from various editorial publications. Web design, branding, and development.

Collaborations

logo-avangrid
LOGO FOCCUS
logo-avangrid
LOGO FOCCUS

About Me

I trained as a graphic designer, studying the relationship between form and function. Over time, I realized the designs I imagined needed code to come alive. That curiosity led me to web development, and what started as a tool to bring my designs to life became a second calling.

Today I work as a full-stack developer and product designer, combining 10+ years of experience in both disciplines. I understand design from the inside and translate it into clean, efficient code. That intersection is my greatest strength: creating products that not only look good, but work exceptionally well.

I specialize in two areas: high-performance websites that combine polished visual design with technical speed, and SaaS products like dashboards, applications, and internal tools that make people's work easier. I use modern web technologies and pay special attention to accessibility, making sure what I build is usable for everyone.

I work independently from Galicia, Spain, collaborating with clients from different countries. We can communicate in Spanish 🇪🇸, Galician 🌳, English 🇬🇧, and Portuguese 🇵🇹.

I care about quality and attention to detail. I believe in doing things right: thoughtful code, intentional design, products that last. If you're looking for someone who understands both the visual and technical sides of your project, let's talk.

Contact

Sello de Pontevedra