M. Deroubaix

--:-- LIS

Full stack developer

Lisbon / remote

Portfolio no. 03 — 2026

MarishaDeroubaix

I build accessible, fast websites end to end, and I care most about the parts nobody praises.

Front
Next.js, TypeScript, Sass
Back
NestJS, Prisma, GraphQL
Data
PostgreSQL

Currently at Possums, building for parents and clinicians.

Selected work

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01PossumsNext.js · NestJS · GraphQL · Prisma2023—Case →02NDC InstituteNext.js · NestJS · GraphQL · SQL2024Case →03DelânciaNext.js · Shopify · GraphQL · Motion2025Case →04Marc BonaventureNext.js · Prisma · PostgreSQL · Mantine2026Case →

Possums

Several separate sites consolidated into one platform: parent programs, free resources and a practitioner directory, built for clinicians and exhausted parents alike.

NDC Institute

Online education in Neuroprotective Developmental Care: courses on breastfeeding, sleep, infant development and perinatal mental health.

Delância

A custom storefront on Shopify's GraphQL API, with real-time product data and motion-led browsing. Shipped solo, end to end.

Marc Bonaventure

A site for a French poet living in Belém: his trilogy, an agenda of readings, a gallery. Behind a password, a small CMS so he posts photographs and events himself, without a developer.

About

It began in 2017, teaching myself Swift, then took a hard turn into the web and became a career at a bootcamp in Lisbon.

Today I work across the whole stack at a start-up: interfaces and design systems on the front, Prisma, NestJS and GraphQL behind them. I like the unglamorous work: accessibility, performance, and code the next person can actually read.

Outside of work I am building The Sommelier's Ledger, a blind tasting app that walks through the systematic approach from sight to final conclusion and keeps a record of what you have tasted. It is not live yet, since mobile and testing come first, but it is the one where every decision is mine.

Marisha Deroubaix
Fig. 01 — the developer

Experience

Aug 2023 — Present

Possums

Fullstack Developer

Built and maintained the company web platform, focused on accessible, user-friendly interfaces.

Shipped full-stack features end to end, integrating APIs and databases.

Migrated from SQL to PostgreSQL, designing and managing the relational schema.

Improved performance and SEO, lifting engagement across the site.

Dec 2024 — Present

Delância

Freelance Developer

Designed and built a fully responsive site tailored to the client's brand.

Integrated dynamic Shopify-driven features across devices.

Ran the project solo, from scoping to launch and client comms.

Sep 2026

Marc Bonaventure

Freelance Developer

Built a Portuguese-language author site with a password-protected CMS, so the poet posts his own readings and photographs.

Modelled events, media and site copy in Prisma and PostgreSQL, with server actions in place of a separate API.

Put uploads behind a storage interface, moving from local disk to Cloudinary and R2 without touching the upload path.

Jan 2023 — Apr 2023

Ironhack

Fullstack Bootcamp — Lisbon

Intensive full-stack bootcamp in modern web technologies.

Built and deployed several full-stack applications, front to back.

Designed, developed and presented team projects under deadline.

Projects — built for the fun of it

Exam practice · in progress

The Sommelier's Ledger

Practice for the Court of Master Sommeliers deductive tasting grid: five phases against the exam clock, then the sheet is saved so you can see how your calls held up once you knew the answer.

Next.js · Prisma · PostgreSQL

Game

Escape Baixa

A canvas side-scroller set on one of Lisbon's busiest streets. Jump the obstacles, or lose a life and live with the side effects.

JavaScript · Canvas