Joao Da Silva Marly

Senior Frontend Engineer | Ex @Qonto 🦄 Tech Lead

Salary / Daily rate

Paris, France

Freelance

Remote only

Skills

Strategy & ConsultingTypescriptNodeReactJavascriptFrontend DevelopmentFullstack DevelopmentNotion

Languages

French (Native)English (Fluent)SpanishKorean

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

Links

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

Certified by HETIC

Digital Innovation Manager

Issued: Nov 2019

Certified by Web School Factory

Certification OpQuast

Issued: Apr 2016

-

Certification Voltaire

Issued: Jun 2015

-

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