Freelancer profile translated to English.
Back to original languageAbout Didier
I am a curious developer with multiple professional and personal experiences in languages ranging from C to Kotlin, good DevOps knowledge, and solid experience in team management and change management.
I am immediately operational in Java and Typescript and can be very quickly in Kotlin and Scala or C# after a refresher period. I have had the opportunity to work on front-end projects (Angular 2+, ReactJS, VueJS) as well as in Node.JS, Python, and Typescript. I have also developed skills in Ansible, Terraform, and Docker, and more recently in AWS Serverless.
I intervene primarily in change situations, on legacy refactoring or architecture (re)design missions, where my ability to synthesize and abstract allows me to develop pragmatic solutions to the growth problems encountered by development projects.
I am very attentive to creating relationships of trust, listening, and honesty among colleagues. Do not hesitate to contact me to discuss your projects!
French
Native or bilingual
English
Fluent
German
Basic
Can work on-site
Paris (up to 10km), Amiens (up to 10km), Beauvais (up to 10km)
Experience
- GermenDevBANKING AND INSURANCEJanuary 2023 - Today (3 years and 5 months)Paris, FranceGermen is a growing company (under 30 people), a technical subsidiary of the Garance group specializing in user experience for subscribing to life insurance contracts and other financial products.Took over a monolithic system in PHP/Java and re-designed it in Java/Spring (team of 2 to 4 developers, front-end and back-end)Isolated functionalities into dedicated microservices
- Designed a business logic orchestration module
- Migrated to asynchronous logic with automatic error recovery, based on RabbitMQ
- Adapted the PHP module (new endpoints protected by JWT)
- Provided occasional DevOps support (Docker Swarm environment)
Migrated the core of the system to AWS Serverless (team of 4 back-end developers)- Training in AWS Serverless (Lambda, Step Functions, DynamoDB)
- Rewrote the core business logic in Lambda (Node + Typescript)
- From scratch
- Step Function for orchestration
- SQS / EventBridge for communication
- SAM for deployment
- ACENSILead Java - Angular DeveloperTELECOMMUNICATIONSJanuary 2021 - December 2023 (3 years)Paris, FranceDesigned an integration module between a client system and an internal system
- Project from scratch
- Defined scope and deadline
- Managed 3 back-end and front-end developers
- Architected a second module
Provided support for the tech leads of 3 other projects (part-time) - AcensiFreelance Software DeveloperDIGITAL AND ITOctober 2020 - December 2020 (2 months)Paris, FranceTeam of 4 developers- Refactored critical functions (improved readability, testability)- Bug fixes- Restored unit tests and Sonar- Redesigned Gitlab CI pipelines
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Education
- EngineerÉcole des Mines de Nantes (Institut Mines-Télécom)2003Automatique et informatique industrielle.
- DEA Automatic and Applied InformaticsÉcole Centrale de Nantes2003Formation avancée en automatique, robotique et réalité virtuelle.
Certifications
- Kotlin for Java developersCoursera2019
- Functional Programming Principles in ScalaCoursera2013