Arnaud Fernandés
Technical Lead Fullstack
Microservices Architecture · .NET 10 · Go · Node.js
About
Fullstack Developer with expertise in microservices architecture and scalable application development for transportation, retail, and services sectors. Specialized in .NET 8, React, Node.js and Go, with proven experience in technical leadership and onshore/offshore team coaching. Expert in Azure cloud architecture and DevOps practices with Kubernetes/Docker. Complete mastery of the development cycle: TDD, Event Sourcing and CI/CD integration.
Complex system architecture (10+ microservices, 5+ application domains)
Technical leadership & onshore/offshore team coaching
Azure cloud & DevOps expert (Kubernetes, Docker, CI/CD)
Client references: GetLink, Sage, Cdiscount
Skills
Backend
C# .NET 10.NET Core 3.1 / 5 / 6 / 7.NET 4.8Node.jsGo
Frontend
ReactJSTypeScriptWebAssembly (WASM)React Admin
Microservices & Orchestration
Architecture microservices scalableKubernetes (+ Rancher)DockerEvent Sourcing
Cloud Azure
Azure FunctionAzure KeyVaultAzure ServiceBusAzure InsightAzure SQLAzure StorageAzure App Service
Bases de données
SQL ServerPostgreSQLMongoDBRedis
Communication & Messaging
RESTKafka (PubSub)Azure Service BusRedis StreamWebSocket
Testing
TDDGherkin / SpecflowXunitPlaywright (E2E)Mock
Sécurité
OAuth2OpenId ConnectSalt / Argon2Chiffrement asymétrique
DevOps & Outils
Git / GitHubGitHub Actions (CI/CD)TFSStorybookPrometheusGrafanaOpenObserve
Méthodologies
Agile / SCRUMFeature TeamÉquipe produit
Experience
Fullstack Technical Lead .NET Core (C#) / React
GetLink
December 2022 - Present
France
Boarding PAX, EES (Entry-Exit System), DriverInfo and VehicleTracking projects for cross-Channel transport.
- Boarding PAX project: real-time availability of wagon loading plans for placement validation and incident management.
- EES (Entry-Exit System) project: overall architecture of the solution (10+ microservices, 2 front-ends, 5 application domains) for the automated registration system for non-European travelers — European Commission project.
- DriverInfo / VehicleTracking projects: development of innovative microservices for cross-Channel truck tracking, modernization of vehicle tracking and redesign of driver back-office.
C# .NET 6/7/8/10ReactJSTypeScriptReact AdminAzure FunctionAzure KeyVaultAzure ServiceBusAzure InsightAzure SQLAzure StorageAzure App ServiceGherkinSpecflowXunitMockRESTPubSub
Fullstack Developer .NET Core (C#) / React
Sage
June 2021 - December 2022
France
HR / API team — modernization of the information system towards a microservices architecture.
- Refactoring and application of best practices across a set of microservices, with development of new features and corrective maintenance (.NET 4.8 → .NET 6).
- R&D for an asynchronous notification system: exploration of WebSockets and Event Sourcing (Kafka).
- Management of employee synchronizations and file regularization imports towards modernization to a microservices architecture (.NET 6).
C# .NET 6/7.NET 4.8ReactJSTypeScriptAzure FunctionAzure KeyVaultAzure InsightAzure App ServiceKafka (Event Sourcing)RESTKubernetesDockerSQL ServerMongoDB
Fullstack Technical Lead .NET Core / React
Cdiscount
June 2018 - June 2021
Bordeaux, France
Octopia product team and project team. React Referent Reviewer (October 2019 — March 2021).
- Coaching, support and skills management of onshore/offshore technical teams: needs analysis, feasibility studies, estimation and budgeting.
- Role of React Referent Reviewer: React code review for the board and React referent within the business unit.
- Octopia project: creation of the new sales channel interface management product — supervision of 15+ .NET Core microservices, React back-office, OAuth2, onshore/offshore management.
- Project team: management of strategic projects (energy bonuses, long-term rental, B2B services) with replacement of the project manager for a quarter.
C# .NET Core 3.1.NET 5Java (Spring Boot)ReactJSTypeScriptKubernetesDockerOAuth2OpenId ConnectRESTSQL ServerGitTFSAgileSCRUM
Fullstack Developer .NET / Java / React
Cdiscount
September 2017 - June 2018
Bordeaux, France
Cdiscount à volonté Feature Team — development of the multi-platform subscription offering.
- Development of Java (Spring Boot) microservices for the subscription offering.
- Enrichment of the offering on the PC site (.NET, C#) and improvement of the mobile and app experience (React JS, React Native).
C# .NETJava (Spring Boot)ReactJSReact NativeTypeScriptKubernetesDockerRESTGitTFS
Certifications
