Hugo D.

Hello!

I am Hugo, aSenior Lead Ruby on Rails Developer.

Anengineerby training in eco-innovation and renewable energies since 2015, I design, develop, and strengthen web applications with a specialization in complex modules, solid back-end structuring, and clean, scalable MVPs.

I work solo or in collaboration with a CTO/PO, on positive impact apps, in sectors such as environment, food, energy, or social.

I have also trained many developers, from beginners to experienced ones — with pedagogy, rigor, and a sense of well-thought-out code.

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✅What I do best:

•Development of complex business modules:invoicing, payments, synchronization, accounting exports...

•Creation of technical MVPs:going fast without sacrificing quality

•Taking over and strengthening existing apps

•Debugging,server scripts, SQL queries, technical consulting

•Occasional coachingand strengthening of Rails teams

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🛠Mastered Stack:

Ruby, Rails, RSpec, Sidekiq, Stimulus, Turbo, PostgreSQL, Redis, ViewComponent, REST API, Stripe, SystemPay, Docker, Heroku, GCS.

Tests: RSpec, Minitest, Jest, Cypress.

Deployment experience Heroku, custom server, Docker, etc.

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📁Recent missions:

•JANA Concierge:complete invoicing module (Rails 7, Redis, Turbo, Heroku), Airbnb/Booking synchronization, accounting export, etc.

•MyRezApp:multi-merchant payment integration, technical and security coaching, ViewComponent

•Open Food Network:Rails 3→5 migration, multi-instance code structure refactoring, international open-source project

•Playse:mobile-first app for booking sports coaches

•Industrial XR Project:web → offline desktop port with ElectronJS (professional trade shows)

Available if you are looking for a solid and reliable back-end.

Hugo.