Freelancer profile translated to English.
Back to original languageAbout Nicolas
Looking for a React.js and/or Node.js developer?
You've come to the right place.
I am a software engineer with over 6 years of experience.
I specialize in TypeScript, React, Next.js, and React Native.
I also have expertise in Node.js and Nest.js.
I have worked in sectors such as retail marketing, luxury, social networks, events, auction houses...
I have collaborated with companies like Meeting Potes, Millon, and Easyence.
I can assist you with:
- Design, development, and maintenance of features aligned with your business needs.
- Front-end: React, Next.js, React Native (Expo), TypeScript.
- Back-end: Node.js/Express, Nest.js, BaaS integration.
- Databases: Relational and NoSQL (PostgreSQL, MySQL, MongoDB).
- API integration: Payment, LLM, agents, web3, maps, notifications, etc.
- CI/CD & Architecture: Deployment, industrialization, and implementation of scalable software architectures.
- Quality and documentation: Unit tests, integration tests, refactoring, and code reviews.
I am also proficient in Docker, AWS, GCP, Supabase, Retool.
I have experience with agile methodologies (Scrum, Kanban) and best development practices (TDD, Clean Architecture, SOLID).
I also have a good UX/UI sense (Figma) which allows me to ensure a fluid and intuitive user experience.
I prioritize transparency in my collaborations.
Every day, I send a detailed report on task progress and next steps.
Do you have a project?
Contact me on the platform
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Montpellier (up to 50km), Marseille (up to 50km), Lille (up to 50km)
Experience
- Meeting potesLead Fullstack Developer ReactSOCIAL NETWORKSOctober 2023 - February 2025 (1 year and 4 months)Paris, FranceMeeting Potes is an innovative startup in the events sector. The application allows users to find and share outings. It also helps event creators (venues, artists) promote their programming. Incubated at Station F and PSL Pépite, the company has 14 employees. It aims to become the reference for energizing social and cultural life.I joined the team as a lead developer. My mission was to structure the product's technical approach and ensure its rapid and robust evolution. The technical team I built and managed consisted of:- 2 front-end developers React/React Native- 2 back-end developersAs a lead developer, my responsibilities included:- Creating and managing the technical team (hiring, onboarding, and implementing agile workflows).- Developing the mobile and web application (TypeScript, Expo, React Native, Next.js, Retool).- Creating an automated pipeline to collect and clean data. Integrating the GPT API to enrich event content.- Designing and implementing a modular design system to facilitate visual consistency and accelerate development.- Managing the Git workflow and continuous deployment.- Collaborating closely with the Product Owner to guide the product. Prioritizing features based on user feedback and technical opportunities.I contributed to the following developments:- Automated integration of thousands of local events each month.- Significant increase in the deployment speed of new features.- Successful transition from an incubation phase to an imminent product launch.Technical context: TypeScript, NestJS, React Native, Expo, Next.js, Retool, OneSignal, Branch.io, React Query, Zod, Shadcn, Tailwind, Supabase, APIs, GPT API, Git, CI/CD, Agile, Scrum, Design System, Figma.The application is available on the App Store and Play Store.
- Dixième StudioLead Fullstack Developer ReactMay 2021 - Today (5 years and 1 month)Dixième Studio is an agency specializing in the development of web and mobile MVPs and internal tools for startups and SMEs. Dixième Studio combines technical, product, and business expertise to optimize the operational efficiency of its clients.I was a lead developer. My role was to direct the technical development of projects. I also helped define the product strategy and ensure client satisfaction.As a lead developer, my responsibilities included:- Fullstack development: front-end & back-end on modern stacks (React, Next.js, Node.js, TypeScript…).- Architecture & scalability: robust and scalable technical design.- Coordination of freelance teams: selection and management of developers, UI/UX designers, and AI experts.- Product strategy: business analysis, requirements definition, feature prioritization to maximize impact.- Technical & operational management: supervision of the development cycle, quality of deliverables, and adherence to deadlines.- Client relations & consulting: strategic support, agile approach, and transparent follow-up to ensure project success.I contributed to the following successes:- Development and successful delivery of MVPs that enabled client startups to attract investors and validate their business model.- Automating internal processes to help SMEs increase their productivity and reduce operational costs.Clients: France Estimations, Millon, Ascop-Ehpad, Smart Kaps, BeSAF...Technical context: TypeScript, React, Next.js, React Native, Node.js, AWS, GPT API, AI, LLMs, Agile, Scrum, Design System, Figma.
- Easyence - Ysance Retail Marketing PlatformFullstack JS DeveloperSOFTWARE PUBLISHINGSeptember 2019 - February 2021 (1 year and 5 months)Paris, FranceEasyence is a company specializing in data-driven marketing solutions, enabling major brands to centralize, analyze, and activate their customer data for high-performing omnichannel campaigns. Easyence's Data Management Platform (DMP) is used by renowned retailers such as Decathlon, Système U, and Cultura to maximize their marketing impact.I joined Easyence as a fullstack developer to contribute to the development of the DMP web application and optimize the platform's performance. I worked closely with the AI, data, and product teams to ensure smooth integration of new features.My main responsibilities were:- Fullstack development: creation and maintenance of advanced features in JavaScript, Python, Vue.js, AngularJS, and Node.js.- Microservices design and implementation: improving the platform's modularity and scalability.- Cloud migration: modernizing infrastructure and optimizing performance on Google Cloud Platform (GCP).- Service deployment and management: using Docker and GitLab CI/CD for continuous integration and delivery.- Agile environment collaboration: participating in coordination meetings and implementing agile workflows to align technical and strategic objectives.I contributed to the following developments:- Development of a platform used by major brands to optimize their marketing campaigns.- Improved scalability and performance through the introduction of microservices and cloud optimizations.- Implementation of innovative features promoting campaign personalization and customer loyalty.Technical context: TypeScript, Python, Vue.js, AngularJS, Node.js, PostgreSQL, MongoDB, Google Cloud Platform, Docker, GitLab CI/CD, Agile, Scrum, microservices.
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Education
- Bachelor's Degree - MIAGEUniversité Paris-DauphineL'Université Paris Dauphine-PSL est une institution reconnue pour son excellence en gestion, économie, et technologies de l’information. Fondée en 1968, elle fait partie de l’Université PSL et accueille plus de 9 000 étudiants. J’ai suivi la Licence 3 MIAGE (Méthodes Informatiques Appliquées à la Gestion des Entreprises) en 2021-2022, une formation combinant informatique, gestion et mathématiques appliquées. Cette année m’a permis de renforcer mon expertise technique et ma compréhension des systèmes d’information en entreprise. J’ai approfondi : - Développement fullstack - Gestion de bases de données et Big Data - Modélisation et architecture logicielle - Gestion de projet en environnement Agile - Analyse et optimisation des systèmes d’information Cette formation a consolidé mon rôle de développeur fullstack, en me donnant une vision stratégique des systèmes informatiques et des enjeux business liés aux technologies digitales.
- University Diploma in Technology in Computer ScienceIUT Paris DescartesL'IUT de Paris - Rives de Seine est un institut reconnu de l’Université Paris Cité, formant chaque année des spécialistes en informatique depuis 1966. Sa formation DUT Informatique est réputée pour son approche professionnalisante et technique. J’ai suivi ce cursus de 2018 à 2020, acquérant des compétences solides en conception et développement d’applications, gestion de bases de données et administration système. J’ai approfondi : - Développement logiciel (Java, Python, C, JavaScript, TypeScript) - Conception et optimisation de bases de données (SQL, PostgreSQL, MySQL) - Administration système et mise en place d’architectures réseaux - Modélisation et industrialisation d’applications - Algorithmes et structures de données Cette formation m’a apporté une expertise technique complète et une approche rigoureuse du développement applicatif.