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Alexandre Serra

Chasing my future self.

Resume

Full-stack software engineer, currently in Lisbon. Available as a PDF if you prefer it that way.

Experience

Full-Stack Software Engineer

Sep 2025 — present

Mercell · Remote to Utrecht, Netherlands

  • Deliver end-to-end features as part of a full-stack team.
  • Work closely with product owners, product managers, designers and other developers.
  • Ship features that increased customer satisfaction and platform usability.
  • React
  • .NET
  • C#
  • Java
  • AWS

Full-Stack Software Engineer

Jan 2023 — Sep 2025

Cleanwatts · Remote to Coimbra, Portugal

  • Planned, built and shipped end-to-end features across the product.
  • Became a maintainer of Kiplo, an Angular application for managing renewable energy communities, and took on responsibility for the quality of the end product.
  • Raised the standard of frontend work across the company by introducing modern techniques such as optimistic updates.
  • Introduced automated testing, which significantly reduced bugs and improved product stability.
  • Angular
  • .NET
  • C#

Full-Stack Software Engineer

Mar 2022 — Aug 2022

Staruplo · Remote to Aveiro, Portugal

  • Enabled continuous integration and delivery through GitHub Actions, improving the development workflow.
  • Designed and built a new frontend in React, improving experience and speed through caching and revalidation with React Query.
  • React
  • Node.JS
  • AWS

Research Collaborator

Feb 2021 — May 2022

INESC-ID · Hybrid to Lisbon, Portugal

  • Participated in the research of a flood forecasting system, developing machine learning models to predict the risk of flooding in specific areas.
  • Shipped features on a Django web portal with long-running background tasks, server-to-server communication and geoinformation manipulation.
  • Django
  • Python
  • Javascript

Lifeguard

Apr 2018 — Aug 2018

ISN · Quinta de São Gerónimo pools - Coimbra

  • Worked as a lifeguard at a local pool, supervising swimmers and ensuring their safety.

Education

Master's degree in informatics engineering

Sep 2020 — Nov 2022

Instituto Superior Técnico

Bachelor's degree in informatics engineering

Sep 2017 — Jul 2020

Universidade de Coimbra

Projects

Prazus

Jun 2025 - present

An AI-powered digital assistant for lawyers

  • Building a full-stack legal SaaS as a monorepo, with subscription billing, user management, and AI-powered document analysis.
  • Developing an AI case assistant that streams answers grounded in case data, uploaded files, and Portuguese legislation, scoped per user and case.
  • Automating deadline tracking with a calculator based on the official court holiday calendar and a daily digest of upcoming deadlines.
  • React
  • Tanstack Start

HandOnVitals

Jan 2021 — Dec 2022

Medical device measuring five vital signs

  • Built a Django backend to store the device's measurements, and a Svelte application to visualise and manage the results.
  • Managed an €8.000 grant supporting the project's development.
  • Django
  • Svelte

SportsIn

Sep 2019 — Jun 2025

Sports events aggregator

  • Built a Flutter mobile app that aggregates sports events and lets people search for events nearby by map or list.
  • Created the Django web service organisers use to add and manage their events.
  • Flutter
  • Django
  • React

Skills

Languages
Portuguese (native), English (proficient), Spanish (conversational)
Programming
Javascript, Typescript, Node.JS, React, Angular, .NET, C#, Java, Python, Django, TailwindCSS
Sports
Water polo, running, gym. Looking to start surfing, tennis and calisthenics
Hobbies
Pokémon TCG, travelling, photography, reading