
Joao Da Silva Marly
Senior Frontend Engineer | Ex @Qonto 🦄 Tech Lead
Salary / Daily rate
Paris, France
Freelance
Remote only
Skills
Languages
About me
Intro
I am eager to contribute my consulting expertise: • Tech strategy consulting (scale, delivery, quality culture) • Lean engineering consulting (managers training, workflows improvement, problem solving) • Notion consulting (managers training, visual management tools setup) Even if I can't work as an engineer with you, due to my limited availability, I still worth mentioning my corresponding areas of expertise: • Web/mobile engineering • Design systems • Users data collection with Segment
Work experience
Senior Frontend Engineer
Welii
Jan 2024 - Present
2 years 10 months
Remote
• Built the frontend codebase using modern technologies (Typescript, React 18, Tailwind, Tanstack) • Designed a fully accessible Storybook library, of components and tokens. • Scaled a tech team from 3 to 12 engineers (hiring, onboarding, best practices, CI/CD) • Trained multiple teams on lean engineering and improved their workflow. • Long term mission, 4 days a week.
Qonto
Aug 2018 - Sep 2024
6 years 2 months
Paris, France
Tech Lead Frontend / Engineering manager
Apr 2022 - Sep 2024
2 years 6 months
Paris, France
- Led a team of 6 frontend engineers, from junior to staff seniority. Helped them to grow and manage their career, on a daily-basis and through progress reviews. - Drove the delivery of the team, to build features addressing users' needs. - Trained engineers and product team to reach a strong data collection culture, breaking silos between marketing and product-engineering. - Led large scale initiatives to improve teamwork and mastery across the whole product-engineering team. - Built standards used by all web engineers to guide their most complex gestures. - Run interviews to hire new engineers. - Facilitated various ritual team meetings from 6 to 60 participants.
Senior Frontend Engineer
Aug 2018 - Mar 2022
3 years 8 months
Paris Area, France
Launched in 2017, joined in 2018. €622M raised. 350,000+ clients. Participated in building the best banking experience for businesses. Using EmberJS and Ruby, with the Lean Manufacturing methodology (Toyota Production System) With the Frontend team: • Open-sourced lint rules enhancements • Recruitment process of future frontend teamates (technical test review and debrief, peer interviews) • Onboarded new team members • Conception of product features through workshops and iterations with PMs and designers * Challenge scopes and propose alternative technical solutions • Worked on key features: international opening, legal shareholders, migration from Treezor, transfers cancelation, direct debits refund, CSV bulk transfers, etc More broadly with the Product team: • Led weekly technical meetings and retros • Led problem solvings PDCAs, training engineers • Built product standards to improve dev time, avoid mistakes and ship better quality • Followed features success based on analytics • Worked on a Kaizen which resulted in reducing the amount of rework during features • Worked with TDD, Gitlab CI, code reviews, daily standups, technical docs, pair programming, remote and international coworkers, design system, Figma, squads, RoR API
Fullstack Developer - Data project
Web School Factory
Jan 2018 - Jun 2018
6 months
Paris Area, France
- Manipulation of a transactional database, containing all the data about their players, spending, earning, using SQL queries - Creating a REST API in NodeJS with Knex & Hapi libraries to retrieve specific data from the database - Dataviz and marketing actions triggering through a pilot dashboard made in React/Redux.
Front-end JS developer -ReactJS / Redux / GraphQL-
Young App
Sep 2017 - Jan 2018
5 months
Paris Area, France
- Production of a company management web-application (billing, prospecting, emailing, organization tools and dashboard) responsive in all browsers, using ReactJS, Redux & GraphQL.
Front-end Android developer -Java & Kotlin-
Yodog
Jul 2016 - Sep 2016
3 months
Région de Paris, France
- Production of an Android geolocalized instant messaging application, in Java & Kotlin mainly, available on PlayStore - Improvement and patch of the website «The100experiment» using JavaScript libraries : ReactJS & Redux
Integrator - Project Informatique Banque Populaire
Web School Factory
Dec 2015 - Feb 2016
3 months
Région de Paris, France
Banking application, managing budgets and projects : - Improvement of the application «Oscar, companion of your money» with a saving and personal projects management tool - Responsive website and mobile site, executed in Html, Css and JavaScript.
Education
HETIC
Master's degree, Computer Software Engineering
2014 - 2019
5 years 2 months
Web School Factory
Master's degree, Engineering/Industrial Management
2014 - 2019
5 years 2 months
Keimyung University
Semester abroad, Computer Software Engineering
2017 - 2017
7 months
Licenses & certifications
Expert in communication technology engineering
Issued: Nov 2019
Digital Innovation Manager
Issued: Nov 2019
Certification OpQuast
Issued: Apr 2016
Certification Voltaire
Issued: Jun 2015