Freelancer profile translated to English.
Back to original languageAbout Matthieu
Java Spring and Angular Developer | Tech Lead & Application Architect | DevOps
I have been involved:
- in critical production projects (+500K calls per day).
- in advanced technical topics on Angular (version migration, SSO implementation) and on SpringBoot (version migration, creation of technical modules for faster configuration) for 9 years.
- in reducing technical debt, improving performance, and implementing SOLID development best practices through code reviews.
- in implementing a monitoring policy using tools like Datadog (4 years) and NewRelic (3 years): probes, RUM, Logs, Dashboards.
- in implementing Helm, Jenkins, and Kubernetes tools by deploying and maintaining several projects in GitOps via FluxCD (4 years).
French
Native or bilingual
English
Fluent
Spanish
Fluent
Can work on-site
Lyon 3e Arrondissement (up to 50km)
Experience
- BpifranceTech Lead & DevOpsBANKING AND INSURANCEJune 2022 - April 2026 (3 years and 10 months)Lyon, FranceTransverse Tech Lead / Solution Architect between two teams within the Data Reference team. Responsible for technical aspects of 4 Spring Boot applications, 3 Angular applications, and DevOps topics. 2 teams of 10 people - 3 devs and 2 DevOps - Agile Safe. Technologies: Spring Boot, Kubernetes, Helm, Terraform, GitOps (FluxCD), Angular 14, Jenkins, AWS (RDS, EC2, RDS, API Gateway, S3, route 53, WAF, IAM, Cloudfront), Datadog, Docker, Vault, Grype, Renovate, Cyberwatch, PrismaCloud
- Wrote architecture documents and defined scope for 4 critical front-end interfaces (SSO, S3/CloudFront infrastructure).
- Migrated AWS account, migrated Kubernetes platform (v2.25 -> FluxCD v2), implemented HTTPS, migrated namespaces (4 apps / 4 environments).
- Implemented monitoring (Pod, Gateway, Kafka, DB), alerting, and observability via Datadog.
- Migrated Terraform 1.11.1 + Atlantis.
- "You build it, you run it" – autonomous team in production, daily stand-ups.
- Achieved an internal quality label (13 criteria: automated deployment, Datadog Dashboards, Cybersecurity) for 3 applications (+500K calls/day) – presented to the CIO/CTO.
- Implemented load tests with k6 and automated security scans (Grype); managed vulnerability remediation.
- Implemented image promotion.
- Migrated Angular 17 -> Angular 21 with Claude Code in 1h15; developed features with test coverage using advanced prompts.
- On-call duty during nights and weekends.
- Groupe SEB - SEBLabLead Dev & DevopsRETAIL (SMALL BUSINESS)July 2019 - June 2022 (2 years and 10 months)Écully, FranceDeveloped a platform to expose services used by mobile applications and various connected Seb products: Cookeo, Companion, robot vacuum.Spring Boot 2, Java 11, Retrofit 2, MongoDB Atlas 4.2, AWS SQS, Elasticache Redis, EC2, Jenkins, Sonar.Angular 11, Angular Material, Karma and Jasmine for the back office.
- Microservices architecture.
- Created a repository with technical modules (SQS sending and receiving, security, DB connection) to factorize configurations.
- Migrated Java 17.
- Optimized monolith startup: removed SQL dependencies.
- Optimized endpoints.
- Implemented CI/CD for new projects (Jenkins, Sonar, Github hooks).
- Integrated integration tests into the process.
- Supervised a team of 4 developers.
SmartHome Part Evolution: Connected robot vacuumTypeScript, AWS Lambda, Serverless, Alexa, Google Assistant- Developed a Lambda function in Java (SDK constraint) with Quarkus and GraalVM.
- Co-developed Alexa certification (WWA), TypeScript Lambdas.
Personal projects: Training for AWS Solution Architect and Kubernetes Administrator certification. - EquensWorldlineTech LeadSOFTWARE PUBLISHINGJanuary 2019 - July 2019 (7 months)Villeurbanne, FranceDeveloped a banking product to expose bank APIs for account aggregation applications.Microservices architecture: Spring Cloud/Data/Batch, Hibernate, MySQL.Implemented:- Hazelcast- Spring Cloud Contract- Spring Cloud Config Server- Supervised Armenian developers.
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Education
- COMPUTER ENGINEERING DEGREE SPECIALIZED IN INFORMATION SYSTEMS (work-study)UTBM2014Après un DUT informatique orienté développement C++, Java, SQL, PHP, HTML/CSS, Android, j'ai rejoint la formation d'ingénieur à l'UTBM où j'ai pu développer des compétences avancées en SQL sur les différents SGBD, découverte de la BI via les ETL, modèles en étoile... et développer des applications pour des clients en respectant un planning et en réalisant de la documentation technique via Merise et UML.