Vincent Guilloux

Binance is the world’s leading blockchain and cryptocurrency infrastructure provider, with a financial product suite that includes the largest digital asset exchange by volume. Trusted by millions worldwide, the Binance platform is dedicated to increasing the freedom of money for users. ∙ Promoted engineering best practices at scale — Internal talk attended by dozens of developers, sharing actionable insights on clean architecture and automated testing in Frontend, and delivery workflows. 🎯 Goal: Foster a shared engineering culture and elevate code quality across teams. ∙ Developed features for both desktop and mobile platforms — Contributed to user-facing functionalities in a high-traffic, high-stakes environment. 🎯 Goal: Deliver secure, performant features that scale with user needs. ∙ Led R&D initiatives on internal tools — Explored infrastructure automation and applied generative AI to streamline developers' workflows. 🎯 Goal: Improve developer productivity and reduce time-to-delivery, guided by user feedback and measurable outcomes. ∙ Launched internal tooling projects — Built platforms and utilities applying robust software design principles such as TDD and Hexagonal architecture. 🎯 Goal: Provide reliable, maintainable foundations for engineering teams.

Jellyfish is a digital partner to some of the world’s leading brands, including Uber, eBay, Nike, Samsung, Google, Spotify, Ford, Aviva Investors and ASOS. Within the JTS (Jellyfish Technology Solutions) capability, I provide a deep expertise and technical leadership, helping 6 squads to improve software/engineering practices with a particular focus on: ∙ Quality by construction: Automated tests, TDD, Continuous integration, Software architecture (Ports & Adapters pattern, SOLID principles)... 🎯 Goal: Fewer defects via a zero-bug mindset (as a target, not a KPI); happier, more confident teams. ∙ Reliable delivery: Efficient git workflow, Deployment pipelines, Continuous deployment/delivery, Dark launching... 🎯 Goal: Multiple daily deployments, fast recovery; smoother, stress-free releases. ∙ Continuous improvement: Pair and Mob programming, Workshops... 🎯 Goal: Raising technical standards across teams; higher team retention. ∙ Team collaboration: Event storming, Tres Amigos, Example Mapping, User story mapping, Feature slicing, Writing (and implementing) acceptance criteria... 🎯 Goal: Stronger domain understanding, better alignment, higher engagement. 👨‍💻 Stack (when hands-on): TypeScript, React, Node.js, Nestjs, Jest, Firebase, Google Cloud Platform (Cloud Run, Functions, Build, Pub/Sub, etc.)

Gojob is a two-sided marketplace that connects temporary workers with companies. ∙ Defined and promoted engineering best practices — TDD, SOLID principles, Hexagonal Architecture. 🎯 Goal: Consistent code quality and maintainability across teams. ∙ Contributed to product design and specifications — Participated in functional workshops, created and reviewed user stories. 🎯 Goal: Better alignment between product and tech, reducing rework and ambiguity. ∙ Delivered full-stack features — Built and maintained REST & GraphQL APIs (NestJS), as well as frontend components (React). 🎯 Goal: Rapid delivery of reliable, user-facing features. ∙ Mentored developers and led knowledge-sharing initiatives — Supported junior devs, facilitated internal/public workshops and meetups. 🎯 Goal: Team growth, stronger engineering culture. ∙ Led technical hiring — Created coding assessments, conducted interviews, and helped scale the team. 🎯 Goal: Attract and onboard top engineering talent. ∙ Managed a team of 3 to 5 developers — Oversaw delivery and individual progression. 🎯 Goal: High-performing, autonomous squads. 👨‍💻 Stack : TypeScript, React, Redux, Node.js (Express / NestJS), GraphQL (Apollo), Jest, PostgreSQL, Google Cloud & Kubernetes (Docker)

Doyouno is an application that allows users to find and review the best professionals (plumber, locksmith, ...). ∙ Developed the entire platform (mobile app, backoffice, Rest APIs) ∙ Turned the (hybrid) mobile application into a PWA (progressive web app) ∙ Built deployment infrastructure using AWS (Amazon Web Services) ∙ Hired and mentored a new developer 👨‍💻 Stack: JavaScript, TypeScript, Ionic / AngularJS, Cordova, Node.js (Express), MongoDB, Firebase, Amazon Web Services (EC2, SES, S3, CloudFront), Docker

Spacecode is a global leader in RFID inventory management technology and solutions (healthcare and diamond industries). ∙ Rewrote from scratch the existing SDK (C# .NET) that allowed operating the RFID devices to a suite of: - Java SDK (customer request) - JavaScript SDK (customer request) - C# .NET SDK (rewritten for performances, stability, and Linux support with Mono) ∙ Rewrote the embedded server running the autonomous RFID devices ∙ Benchmarked single board computers to pick a successor for the existing costly and unreliable embedded PC ∙ Built a made-to-measure Linux distribution for the chosen single board computer (Odroid U3) ∙ Developed software solutions for internal and customers' needs, using the new SDKs (Java, JavaScript, C# .NET...) 👨‍💻 Stack: C# .NET (WPF, Mono) / ASP MVC 5 / Java (JavaFX, ARM) / C & Linux (ARM) / JavaScript (WebSocket, Ionic) & Node.js (Express)

Arianespace is a world leader in access to space, working for its institutional and commercial customers and Europe’s strategic independence. ∙ Developed the intranet application "NOE" (Navigation visuelle dans l'Organigramme d'Exploitation) that allows the mechanical, fluid, and electronics engineering team to virtually visit the Guiana Space Centre and its technical installations (PHP, Symfony 1.4 then Symfony2) ∙ Leaded two engineer interns (6 month internships) ∙ Developed the tool "SCHRONF" (Suivi de la chronologie fluide) that allows analyzing the data collected before and after an Ariane 5 launch (C# .NET, WPF, JavaScript) 👨‍💻 Stack: PHP, Symfony, JavaScript, C# .NET (WPF), PostgreSQL, Oracle DB