04/26/2026 updated
100 % available
Software Engineer | Java & Spring Boot | DevOps | Microservices | Kubernetes
Rennes, France
Only remote
Master's degree in Networks and Distributed SystemsAbout me
Backend and DevOps Engineer with 7 years of experience building, scaling, and operating distributed systems. Skilled in Java, Spring Boot, Kotlin, Kubernetes, Docker, and CI/CD pipelines. Experienced across industrial IoT, ERP systems, and startup environments.
Java (Programming Language)DevOpsSpring BootKubernetesDockerMicroservices
Java & Spring Boot Development
Expertise in developing and maintaining microservices and scalable backend solutions using Java and Spring Boot (including Spring Boot 4), with experience in REST and GraphQL API design and optimisation.
DevOps & CI/CD Pipelines
Strong background in designing and managing CI/CD pipelines using GitLab CI and GitHub Actions, containerising applications with Docker, orchestrating with Kubernetes and Helm, and automating server configuration with Ansible and Terraform.
Microservices Architecture & Cloud Infrastructure
Solid expertise in designing and implementing microservices architectures, managing Kubernetes clusters, working with service meshes and API gateways (Keycloak, Traefik), and supporting IoT platforms such as LX Connect.
Kotlin Development
Experience in developing microservices and backend applications using Kotlin alongside Java within Spring Boot environments.
Database Management
Proficiency in managing and working with relational and non-relational databases including PostgreSQL, Oracle, MySQL, Redis, TimescaleDB, and Warp10 for data storage and analytics.
ERP Development & Integration
Experience in full-stack development and customisation of ERP systems including ERP Compiere and ERP APIZ, using SpringBoot and Angular, with deployment automation tailored to market needs.
Mobile & Web Application Development
Background in developing Android mobile applications and fullstack web applications using Java, Android, Flutter, Firebase, Angular, PHP, WordPress, and related technologies.
Message Brokers & Real-Time Data Processing
Experience using Kafka for real-time data processing and RabbitMQ for message brokering within distributed microservices architectures.
Monitoring & Observability
Familiarity with monitoring and observability tools including Prometheus, Grafana, Signoz, and OpenTelemetry for tracking system performance and reliability.
IoT Protocols & Platforms
Knowledge of IoT communication protocols and platforms including LwM2M, FOTA, COAP, and MQTT, applied in the context of the LX Connect IoT platform.
Expertise in developing and maintaining microservices and scalable backend solutions using Java and Spring Boot (including Spring Boot 4), with experience in REST and GraphQL API design and optimisation.
DevOps & CI/CD Pipelines
Strong background in designing and managing CI/CD pipelines using GitLab CI and GitHub Actions, containerising applications with Docker, orchestrating with Kubernetes and Helm, and automating server configuration with Ansible and Terraform.
Microservices Architecture & Cloud Infrastructure
Solid expertise in designing and implementing microservices architectures, managing Kubernetes clusters, working with service meshes and API gateways (Keycloak, Traefik), and supporting IoT platforms such as LX Connect.
Kotlin Development
Experience in developing microservices and backend applications using Kotlin alongside Java within Spring Boot environments.
Database Management
Proficiency in managing and working with relational and non-relational databases including PostgreSQL, Oracle, MySQL, Redis, TimescaleDB, and Warp10 for data storage and analytics.
ERP Development & Integration
Experience in full-stack development and customisation of ERP systems including ERP Compiere and ERP APIZ, using SpringBoot and Angular, with deployment automation tailored to market needs.
Mobile & Web Application Development
Background in developing Android mobile applications and fullstack web applications using Java, Android, Flutter, Firebase, Angular, PHP, WordPress, and related technologies.
Message Brokers & Real-Time Data Processing
Experience using Kafka for real-time data processing and RabbitMQ for message brokering within distributed microservices architectures.
Monitoring & Observability
Familiarity with monitoring and observability tools including Prometheus, Grafana, Signoz, and OpenTelemetry for tracking system performance and reliability.
IoT Protocols & Platforms
Knowledge of IoT communication protocols and platforms including LwM2M, FOTA, COAP, and MQTT, applied in the context of the LX Connect IoT platform.
Languages
EnglishGoodFrenchFluent
Project history
As a DevOps engineer in an early-stage startup, responsible for building and managing deployment infrastructure for backend, web, and mobile applications. Key tasks include designing and managing server infrastructure, containerising applications using Docker, managing routing with Traefik, automating server configuration with Ansible, implementing CI/CD pipelines using GitHub Actions, securing servers, deploying and maintaining internal tools, and providing technical support. Technologies: Docker, Ansible, Terraform, Kubernetes, Kops, Java, Springboot, Github Action, GoLang, React.
Focused on developing and maintaining microservices for the LX Connect platform using Spring Boot (Java/Kotlin). Responsibilities included designing and optimising REST/GraphQL APIs, working with PostgreSQL, Redis, and Warp10 for data storage and analytics, managing microservices in Kubernetes clusters using Helm, using Kafka for real-time data processing, and designing a BFF (API gateway) service with Keycloak. Technologies: Java, Kotlin, Spring Boot 4, Keycloak, Gitlab CI, Kubernetes, Helm, Docker, Timescale, JsonB, Redis, Postgres, LwM2M, FOTA, COAP, MQTT, OpenTelemetry, Signoz.
Full Stack Developer using SpringBoot and Angular for ERP Compiere and ERP APIZ web apps. DevOps role involving automation of deployment of the standard APIZ ERP. Back Office work including MCO, adding customisation, features and bug fixing on ERP Compiere/ERP APIZ Solutions. Monthly internal training and knowledge transfer as Instructor. Technologies: Java EE, GWT, Springboot, Angular, TailWind, Shell Scripting, Docker, Docker Swarm, Kubernetes, Helm, Git, Gitlab CI, Maven, Postgres, Oracle, RabbitMQ, Prometheus, Grafana, JasperReport. Clients: OSG, YvesRocher, LaPoste France, Samvaz, Le Plomb Francais, RailEurop, Peeters&Publisher, Metafranc, ChrislignCadap, Aktiva2, Joossens.