Ségolène Alquier

Senior Frontend Developer | React, TypeScript

Salary / Daily rate

Paris, France

Freelance

Can come onsite

Skills

Frontend DevelopmentTypescriptNextReactHTMLGitPlaywrightTailwind CSSJavascriptCSSWebflow

Languages

EnglishFrenchGerman

About me

Intro

Senior Frontend Engineer with 6+ years of experience specializing in React, TypeScript, and Next.js. Led architecture and development for startups and established companies, building scalable applications with optimized performance and robust testing implementations. Combining technical expertise with product thinking to deliver high-quality solutions that align with business goals and enhance user experience.

Links

Work experience

Senior Frontend engineer

RATP DevFreelance

Feb 2025 - Present

1 year 9 months

Paris · Remote

Développeuse front-end expérimentée, j'ai intégré une équipe d'ingénieurs backend et data sur un projet stratégique de supervision temps réel pour la RATP. En tant que seule experte frontend de l'équipe, je suis en charge de l'architecture et la qualité du code de l'application frontend. 🎨 Réalisations clés : - Architecture et développement de l'application sur Vite/React, incluant la mise en place de React Query pour une gestion optimisée des données - Choix d'une librairie pour l'ensemble des produits RATP à venir et démarrage d'un Design System - Implémentation d'une suite de tests e2e avec Playwright et intégration continue via Github Actions, assurant la fiabilité du produit - Établissement des standards de code et revue de l'ensemble des contributions frontend 🤝 Collaboration produit : - Participation active aux rituels agiles et à la définition du workflow de développement - Contribution étroite avec les designers pour le choix de la librairie UI et la construction du Design System - Communication régulière avec les équipes design et produit pour assurer une intégration cohérente

Senior Frontend Engineer

MagoFreelance

Jul 2024 - Mar 2025

9 months

Paris · Remote

Early-stage startup developing an AI video styling tool. As the first frontend developer, I led the MVP creation from scratch to beta testing launch. 🎨 Key achievements: - Architecture and development of the Next.js/React application, including React Query implementation for optimized data management - Implementation of e2e testing suite with Playwright and continuous integration via Github Actions, ensuring product reliability - Frontend performance and accessibility optimization for a smooth user experience - Setup of tracking tools (PostHog) to measure user engagement - Establishment of code standards and review of all frontend contributions 🤝 Product collaboration: - Active participation in agile rituals and development workflow definition - Support of the product team in technical feature evaluation and prioritization - Regular communication with design and product teams to ensure coherent integration

Software Engineer

Figures

Dec 2022 - Jul 2024

1 year 8 months

Paris · Remote

Scale-up specializing in compensation solutions where I contributed to the development and evolution of the salary bands module, a key tool enabling companies to structure their compensation policy. 🎨 Key achievements: - Development and maintenance of the salary bands module using React/TypeScript - Implementation of fullstack features with Node.js and Prisma - Setup of e2e tests with Playwright to ensure feature reliability 🤝 Leadership & Collaboration: - Tech lead on several strategic projects - Active participation in user research phases and specifications definition - Co-creation of team agile processes with the rest of the team - Close collaboration with Product Manager from ideation to delivery on specific projects

Software Engineer

Doctolib

May 2020 - Dec 2022

2 years 8 months

Paris · Hybrid

Within the French e-health unicorn, I participated in the development of the "Logiciel Médecin" (software for health professionals) from its beginnings, contributing to its growth from 4 to 10 development teams. 🎨 Key achievements: - Tech Lead on critical modules of the medical software: vaccination module, pregnancy monitoring, consultation document sharing - Fullstack development of complex features using React/TypeScript and Ruby on Rails - Contribution to code scalability and maintainability in a multi-team context - Active participation in continuous improvement initiatives and knowledge sharing 🤝 Leadership & Collaboration: - Involvement from User Research phases with Product Managers and Designers - Definition of technical specifications and ticket breakdown - Team support through to production deployment - Organization of open-source meetups and internal/external technical presentations

Webdesigner / Frontend developer

FreelanceFreelance

Sep 2018 - May 2020

1 year 9 months

- Logo design / branding guidelines & web-oriented mockups - Responsive website development with HTML5 / CSS3 - Development using CMS (WordPress, Webflow) and fullstack JavaScript (Node/React)

Webflow Instructor

Rocket SchoolFreelance

Jul 2019 - Mar 2020

9 months

Paris, France

Creation and delivery of courses on Landing Page development with Webflow for Growth Hacking students 💻 1 day on content and Landing Page creation with Webflow ⚡️ 1/2 day on creating animations and user interactions in Webflow 💼 1/2 day on creating an online CV / Portfolio with Webflow

Product Manager

Yoyo France

Jul 2016 - Oct 2017

1 year 4 months

Paris · On-site

As the 3rd employee of this innovative waste sorting startup, I led the development of digital products from conception to production. This experience gave me a deep understanding of product challenges, which now enriches my development practice. 🎨 Key achievements: - Complete creation of specifications for two complementary websites - Project management from ideation to launch - Development oversight in collaboration with technical teams - Implementation of agile methodology and prioritization processes - Product roadmap management and feature prioritization 🎯 Leadership & Impact: - Direct contribution to establishing the startup's product foundations - Coordination with various stakeholders (developers, designers, business) - Definition and monitoring of KPIs to measure feature success

Production manager

NoMadMusic

Jul 2014 - Jan 2015

7 months

Paris · On-site

In charge of the album production's organisation and follow-up of the label, my key tasks were the following: - creation of a clear production planning, which improved clarity on the whole album production process for the team and the service providers - intermediary between the service providers and the label (sound engineer, graphic designer, photographer, film-maker, press agent) - follow-up of the albums' digital distribution on the various digital platforms - management of the albums' promotion I was also in charge of a part of the label's communication, and my key tasks were the following: - creation and broadcasting of monthly newsletters - creation and broadcasting of other communication media such as press packs, press reviews, flyers, advertisements - weekly reporting of the communication's actions - increasing the label's visibility on social media (facebook, twitter)


Education

42 Paris

Computer Science

2018 - 2020

2 years 1 month

ESCP Business School

Master in European Business

2015 - 2016

1 year 1 month

University of Paris I: Panthéon-Sorbonne

Master's degree in International Business Law - Master 1 Droit International des Affaires

2013 - 2014

1 year 1 month

Université Grenoble Alpes

Bachelor's degree in Foreign Languages - Licence de Langues Etrangères Appliquées

2010 - 2013

3 years 1 month

Université Grenoble Alpes

Bachelor's degree in Business Law - Licence de droit

2010 - 2013

3 years 1 month

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