Freelancer profile translated to English.

Description

I am looking for a technical mission as a JEE architect on Java / Spring technologies. I specialize in supporting Java8 -> 17, 21 migrations, replacing Hibernate Criteria with JPA.

I can manage a team (ideally max 5 people).

I work with the agile method for greater efficiency.

I am sensitive to the clean architecture approach (see github . com/arnaudbarbe/clean-architecture)

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Rennes (up to 10km)

Rectorat
Spring application migration
EDUCATION AND E-LEARNING
January 2023 - Today (3 years and 6 months)
Rennes, France
Spring application migration:
- JDK version upgrade 8 -> 17, 21
- Library version upgrade and code adaptation
- Removal of Hibernate Criteria by JPA Query/Predicate/Repository
- Spring version upgrade with adaptation
Spring SpringBoot TDD JAVA/JEE;
Build data
JEE Architect, Technical Lead
AGRICULTURE
March 2020 - Today (6 years and 5 months)
Betton, France
Managed a development team of 3 people, monitored the development of each microservice. Participated in CCB and Project Committee. Developer on the back-end part.

- Continuous Integration/Continuous Deployment
- Design, management and development of the KerHUBi IOT Server platform
- Design, management and development of the KerHUBi Integration platform
- Design, management and development of the KerHUBi Collector platform
- Management of architecture work (failover and High Availability) and orchestration (Kubernetes)
- Selection of different data storage systems based on needs (RDBMS, Key/value, Document, Time-series, Queuing).
- Security integration
Operating system update.
JVM update with the latest security patches.
Application library upgrade.
Aqua Trivy validation process to detect CVEs.
Continuous testing via GreenBone.
Authenticated APIs
- High availability architecture
Multi-AZ database
Fault tolerance: Nodes across 3 zones
DNS failover in case of failure
Availability rate around 99.99
- Business continuity plan
Daily multi-zone backups
Micro services Kubernetes docker docker-compose AWS JavaEE Spring influxDB Postgresql RabbitMQ Kanban LORA SigFox ModBus OPC/UA
Kerlink
Team Lead
TECH
October 2015 - March 2020 (4 years and 5 months)
Thorigne-Fouillard, France
Managed a development team of 9 people, monitored the development of each microservice. Participated in CCB and Project Committee. Developer on the embedded communication <> server part.

- Continuous Integration/Continuous Deployment: implemented Jenkins jobs through normalization of groovy scripts per project.
- Design and management of the Wanesy Management Center IoT platform.
- Design/management of subsystems: Radio Network Controller (RNC), Lora Network Server (LNS), Gateway Management System (GMS).
- Design and development of the communication NMS with stations: Base Station Controller (BSC).
- Graphic design and management of the Dashboard based on GMS.
- Management of architecture work (failover and High Availability).
- Choice of an implementation language (Go) for the future LNS.
- Selection of different data storage systems based on needs (RDBMS, Key/value, Document, Time-series, Queuing).
- Significant refactoring between version 2 and 3.
Recommendations for all micro containers
cohesive, replicable/stateless.
modularization of commercial offers.
Docker.
self-adaptive interface.
REST/API exposure, HATEOAS.
Asynchronous with monitor for long tasks.
"database per service" pattern.
Circuit breaker.
OpenAPI client and server generation (Swagger).
JWT authentication token.
Normalization of services offered by micro containers
Default routes: /application, /ping, /health, /configuration
Prometheus metrics.
Transaction ID in logs.
Route naming convention
Improvement of production deployment
Externalization of docker compose YML configuration.
Development of an idempotent upgrade system via yaml file.
Development of groovy/jenkins CI/CD scripts
Agility
Daily
Sprint start and end meetings
Retrospective
- Ongoing work
Platform event channel.
Centralized alarm management.
Consideration of Zero Downtime Deployment
Microservices Spring Spring boot Spring Data InfluxDB Elasticsearch PostgreSQL RabbitMQ Atlassian JIRA Docker docker-compose