Freelancer profile translated to English.
Back to original languageAbout Romain
Senior Full-Stack Developer (+7 years of experience) with strong backend expertise in C# .NET Core, passionate about IT and efficient code. Curious and versatile, I prioritize the backend while mastering the frontend (Vue.js, React.js), allowing me to work on the entire project lifecycle, from design to deployment.
đź’ˇ What I bring to your projects
- Robust & scalable backend: C# .NET Core (main expertise), Node.js, Go.
- Modern & user-friendly frontend: Vue.js (preferred), React.js, TypeScript.
- Databases & performance: SQL, MongoDB, Elasticsearch, Aerospike.
- Cloud & DevOps: CI/CD (GitLab, ArgoCD), monitoring (Grafana, Prometheus), GCP, Azure.
- Quality & optimization: rigor from AdTech, where I worked on engines handling millions of QPS, imposing a strong requirement for scalability, performance, and reliability.
- Coordination & communication: interface between technical and business teams, project management, team leadership.
🎯 Examples of achievements
Development and optimization of critical components in .NET Core for real-time, high-traffic systems.
Implementation of complete web applications (backend + frontend) for SMEs and large corporations.
Creation of a scalable PDF generator (Node.js + Puppeteer) deployed on Azure.
Integration of e-commerce services (Shopify, SendGrid, PrestaShop) into marketplaces.
👉 Favorite stack: C# .NET Core (backend), Vue.js and React (frontend).
📍 Based in Paris – available for full remote work anywhere in Europe.
đź’¬ I am looking for diverse missions, with a preference for backend projects requiring high performance and quality.
French
Native or bilingual
English
Fluent
Spanish
Basic
Remote only
Primarily works remotely
Experience
- EquativSenior Backend Engineer CoordinatorPRESS AND MEDIASeptember 2024 - Today (1 year and 9 months)Londres, United KingdomAt Equativ, I act as a backend coordinator, bridging the gap between the engineering team and the UK sales department.- Gathering business requirements and translating them into technical solutions.- Technical support and product insights.- International coordination and cross-functional steering to align tech & business.👉 Mission focused on technical and strategic coordination, ensuring smooth communication between backend development and business objectives, while guaranteeing the quality and consistency of deployed solutions.
- EquativBackend EngineerPRESS AND MEDIAMarch 2023 - August 2024 (1 year and 5 months)Paris, FranceBackend developer within the SSP/RTB team, I worked on real-time systems with very high volume.- .NET Core: design and optimization of critical components of the bidding engine.Major projects:- Cost funnel and pricing management- Filtering of creatives blocked by Google (compliance + revenue safety).- Multi-format support in a single bid request.- Implementation of hyper-local targeting.- DevOps: deployment management (ArgoCD, GitLab CI/CD).- Monitoring & on-call: Grafana, production incident management.👉 This experience forged a critical view of performance and code quality, working on systems processing several million QPS.
- ISAAN
On Malt
Full-Stack Developer Vue.Js (TypeScript)/C#CIVIL ENGINEERINGSeptember 2022 - November 2022 (2 months)Paris, FranceI contributed to the modernization of web applications by:- Frontend migration: converting C# projects to Vue.js TypeScript.- Feature development: implementing automatic exports to TXT and CSV (Excel) to improve data portability and usability.👉 Mission focused on application modernization and optimization, combining backend (C#) and frontend (Vue.js/TypeScript) expertise.
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Education
- Expert in Information TechnologyEpitechLe programme Grande Ecole est le cursus historique d’Epitech. Il se déroule en 5 ans et forme des experts en informatique. Il propose un contenu technique dense et varié, comprenant une diversité de projets de programmation, et couvrant de nombreux langages qui permettront à l’étudiant d’aborder toutes les nouvelles technologies avec sérénité.
- Bachelor's degree in Computer ScienceEpitech2021