Serge MELESS
Senior Backend Engineer & Architect | Web3 & Blockchain | API Architecture | Node.js • TypeScript • Solidity • Cloud
Salaire / Taux journalier
94350 Villiers-sur-Marne, France
Freelance, ouvert au CDI
Expertises
Langues
À propos
Introduction
Senior Backend Engineer with 9+ years of experience designing, building and scaling complex web systems, APIs and cloud-native infrastructures. I have worked on large-scale projects as a Senior JavaScript Engineer and Associate Technical Lead, notably at France Télévisions and WSO2, focusing on backend architecture, API design, security, distributed systems and integration patterns. My expertise includes Node.js, TypeScript, Docker, Kubernetes, AWS, API architecture and secure system design. I am currently expanding my skill set into Blockchain and Web3 technologies through Alyra's Blockchain Developer program, with a focus on smart contracts, decentralized application design and the integration between backend systems and blockchain networks. My objective is to bridge modern backend architecture with decentralized technologies to build robust, secure and scalable Web3 systems. Tech focus: Node.js, TypeScript, API Architecture, Cloud Native, Smart Contracts, Web3.
Expérience de travail
Blockchain Developer Program Participant
Alyra, l'école blockchain & IA
janv. 2026 - Présent
10 mois
Paris, France
Associate Technical Lead – API Architecture & Integration
WSO2
mai 2025 - déc. 2025
8 mois
Senior Software Engineer
France Télévisions
févr. 2022 - janv. 2025
3 ans
Paris, France
– Designed, documented, and deployed a web video player SDK for live and on-demand streaming – Migrated the backend API from Symfony to Koa.js, handling 40M+ visits/ month – Worked closely with UI/UX teams to enhance video player experiences on web, SmartTV, and mobile platforms – Tech stack: React, RxJS, Node.js, Koa.js, Jest, Cypress, MongoDB, Docker, Kubernetes, DRM, DAI
Savics
janv. 2018 - févr. 2022
4 ans 2 mois
Bruxelles, Belgique
Technical Lead
sept. 2021 - févr. 2022
6 mois
Bruxelles, Belgique
Software Engineer II
oct. 2019 - sept. 2021
2 ans
Bruxelles, Belgique
– Developed and optimized interactive country maps in GeoJSON for healthcare data visualization – Migrated the MediScout platform to a SaaS model with offline data management (2,935+ users) – Managed data interoperability across 850+ laboratories using MongoDB and CouchBase on DataToCare – Tech stack: Java, AngularJs, Node.js, AWS, QGIS, MongoDB, CouchBase, Python
Software Engineer I
janv. 2018 - oct. 2019
1 an 10 mois
Bruxelles, Belgique
– Implementing features on DataToCare & MediScout & Alics – Tech stack: Java, AngularJs, Node.js, MongoDB, CouchBase
Senior Developer
Jighi
févr. 2018 - nov. 2018
10 mois
Abidjan, Côte d'Ivoire
– Maintained and improved WiFi solutions for 9 universities and public spaces – Developed secure captive portals for events and airports – Tech stack: PHP, Node.js, Angular, Laravel, AWS, PostgreSQL, Mikrotik
Développeur
Labell 7
oct. 2015 - févr. 2018
2 ans 5 mois
Abidjan, Côte d'Ivoire
Formation
Groupe Ecole Des Hautes Etudes Commerciales (EDHEC) Abidjan
Master's degree, Computer Software Engineering
2021 - 2023
1 an 2 mois
Groupe Ecole Des Hautes Etudes Commerciales (EDHEC) Abidjan
Bachelor's degree, Génie logiciel
2011 - 2014
3 ans 1 mois
Institut de Technologies et Spécialités (ITES) 2 plateaux
Higher National Diploma, Nouvelles Technologies de l'Information et de la Communication
2010 - 2012
2 ans 1 mois
Institut de Technologies et Spécialités (ITES) 2 plateaux
Higher National Diploma, Nouvelles Technologies de l'Information et de la Communication
2008 - 2010
2 ans 1 mois
Lycée Classique d'Abidjan
High School Diploma, Biology/Biological Sciences, General
2005 - 2008
3 ans 1 mois
Licences et certifications
M103: Basic Cluster Administration
Délivré le : –
M121: The MongoDB Aggregation Framework
Délivré le : –
M320: Data Modeling
Délivré le : –
Développer une application décentralisée avec les technologies blockchain
Délivré le : mai 2026
Advanced React
Délivré le : sept. 2024