Francesc Rosas

Director Software Engineering Contractor at Functio Ltd

London, England, United Kingdom
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Summary

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Senior
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Francesc Rosas is a Director-level software engineering contractor with over 15 years of hands-on experience building and improving full-stack systems across startups and large enterprises. He specializes in TypeScript, Node.js, React and AWS, delivering maintainable, testable products while also driving CI/CD, observability and architecture modernizations. Francesc has repeatedly led migrations from monoliths to cloud-native microservices and strengthened testing infrastructures—most recently improving test coverage and error messaging for CodeYourFuture’s JavaScript exercises. Comfortable alternating between coding, mentoring and technical leadership, he brings a pragmatic focus on scalability, reliability and developer experience. Based in London, he combines consulting agility with enterprise-grade practices and a long track record of turning operational pain points into repeatable processes.
code15 years of coding experience
job18 years of employment as a software developer
bookCicle Formatiu de Grau Superior en Desenvolupament d'Aplicacions Informàtiques (Associate Degree) Computer Software Engineering, Cicle Formatiu de Grau Superior en Desenvolupament d'Aplicacions Informàtiques (Associate Degree) Computer Software Engineering at Educem
bookUPC Universitat Politècnica de Catalunya
languagesCatalan, Spanish, English
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Github Skills (21)

javascript10
testing10
forms10
symfony10
assert10
twig10
test-automation10
npm9
data-manipulation9
http9
php9
heroku9
nodejs9
design-patterns9
spinnaker6

Programming languages (15)

MDXC++CGoHTMLTypeScriptShellCoffeeScript

Github contributions (5)

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CodeYourFuture/js-exercises

Mar 2020 - Apr 2020

JavaScript exercises for CodeYourFuture students
Role in this project:
userQA Engineer / Test Automation Engineer
Contributions:15 commits, 12 PRs, 83 comments in 1 month
Contributions summary:Francesc primarily focused on enhancing the testing infrastructure within the JavaScript exercises repository. They modified existing test functions, improved error messaging, and ensured that tests correctly assessed array comparisons. Additionally, the user addressed issues related to undefined variables and numerical sorting, contributing to more robust and reliable tests. Their work involved refactoring and expanding test coverage, especially around the radio station exercise.
codeyourfuturejavascript-exercisesjavascript
frosas/frosas.net

Dec 2015 - Feb 2020

Contributions:36 pushes, 3 branches, 6 issues in 4 years 3 months
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Francesc Rosas - Director Software Engineering Contractor at Functio Ltd