Leadership & team support
Tech Lead, Lead Dev, support technique, cellules de crise, POC, formation, transmission de compétences, accompagnement des équipes
CV · Freelance / Consulting
Eric Thiebaut
Tech Lead · Senior DevOps Engineer
28 years of experience · Available
Profile
DevOps Engineer with expertise across the entire technology stack, including frontend and backend development, infrastructure, CI/CD, performance optimization, architecture, and deployment. Flexible and adaptable, with a proven ability to solve complex technical challenges and operate effectively in crisis situations, backed by strong expertise in code and architecture re-engineering and optimization.
My career has led me to favour open-source technologies and architectures that can be controlled end to end, helping build IT systems that are as independent as possible from large US corporations and strengthening digital sovereignty.
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Skills
Systems & cloud
Unix, Linux (Debian, Ubuntu, Red Hat), AIX, Windows, VMware, AWS Fargate, CloudFormation, IAM, Aurora/RDS, VPC, networking, OVH
DevOps & infrastructure
Docker, Docker Compose, Ansible, GitLab CI/CD, Jenkins, Nginx, Apache, reverse proxy, load balancing, Terraform/IaC (pratique actuelle)
Monitoring, testing & security
Sonar, ELK, Filebeat, Nagios, JMeter, Taurus, LoadRunner, SPF, DKIM, Let’s Encrypt, bastion SSH
Development & middleware
Java, JavaScript, TypeScript, PHP, HTML, NestJS, Express, Node.js, SQL, SQL spatial, XML, XSLT, C, Bash, Python, YAML, pipelines, Kafka, MQSeries, Axis
Web, CMS & data
Tomcat, JBoss, WildFly, WebLogic, Drupal, WordPress, Joomla, SPIP, Composer, Eclipse, Ant, Maven, JFrog, MySQL/MariaDB, Aurora, Elasticsearch, DB2, Oracle, OpenLayers, GeoConcept, BDOC
Methods: Agile Scrum · DevOps
Professional experience
Self-hosted on-premises cloud infrastructure
- Designed and administered a self-hosted Linux infrastructure integrating email, web hosting, and a complete development and continuous integration environment.
- Automated deployments, infrastructure management, security, and monitoring using DynDNS, the OVH API, SPF, DKIM, Let’s Encrypt, Nginx, Apache, GitLab CI/CD, Docker, and Ansible.
- Developed websites and web applications, including a platform supporting thermal audits built with React, TypeScript, Node.js, and MariaDB, as well as Drupal websites.
Environment: GitLab CI/CD, Docker, Ansible, API OVH, SPF/DKIM, Let’s Encrypt, Nginx, Apache, Postfix, Dovecot, React, TypeScript, Node.js, MariaDB, Drupal
On-premises cloud re-engineering and secure log centralisation
- Provided expertise in migrating monolithic J2EE applications running on legacy infrastructure (RHEL, JBoss EAP, Apache HTTP Server, and WebSphere) to a microservices/Kubernetes architecture.
- Adapted existing monitoring to an ELK-based solution as part of a gradual migration.
- Evaluated a Kafka architecture to centralise large volumes of logs from applications in a DMZ, crossing multiple firewalls.
Environment: RHEL, JBoss EAP, Apache HTTP Server, Docker, Kibana, Elasticsearch, Logstash, Filebeat
DevOps platform implementation
- Implemented, optimised, automated, and secured a complete development and testing environment for Core Banking projects on AWS, integrated with GitLab.
- Automated the provisioning of development and test infrastructure on AWS Fargate using Jenkins and CloudFormation; provided technical support to an international team.
- Adapted the platform for BFR, ran performance tests with Taurus, secured MySQL and Aurora databases, implemented MFA, and built a serverless proof of concept using AWS Lambda and Aurora.
Environment: AWS Fargate, CloudFormation, IAM, Aurora/RDS, VPC, networking, reverse proxy, load balancing, GitLab, Jenkins, Taurus
DevOps platform implementation
- Built a complete integration environment for the Orange Bank online banking project, strengthened security, and developed a disaster recovery plan on an external cloud.
- Set up an Apache reverse proxy, an SSH bastion, and Nagios monitoring with a centralised alert dashboard.
- Developed Jenkins deployment scripts integrating Sonar, automated on-demand test VPS provisioning, and provided architecture advice and support to DevOps teams.
Environment: Apache, Jenkins, Sonar, bastion SSH, JFrog, Maven, Nagios
WildFly technical expertise and optimisation
- Worked on the ANTS SIV-PPNG project, supporting integrators and developers and providing training, optimisation, security, and monitoring for WildFly 9.
- Created JMeter test scenarios, provisioned VMware/Oracle virtual machines to support developers, and implemented monitoring with Nagios.
Environment: JBoss/WildFly, JMeter, Oracle, VMware, Nagios
Information system migration and development platform re-engineering
- Provided technical expertise for the migration of GAN Eurocourtage’s information system, previously managed by Groupama SI, to Allianz’s information system.
- Re-engineered JEE applications and migrated from JBoss 4 / WebLogic 10 to JBoss 5 / WebLogic 11; modernised developer workstations and tooling with Eclipse and Maven.
Environment: WebLogic 10/11, JBoss 4/5, BDOC 4/5, IBM AIX, CICS Transaction Gateway, Eclipse 4.5, Maven 3
Website development
- Built WordPress websites, maintained a PHP website, and set up Java/web environments using Spring, Hibernate, AngularJS, and Bootstrap.
Environment: WordPress, PHP, AngularJS, Java, Spring, Hibernate
Website development and maintenance
- Developed and maintained the association’s websites on a LAMP stack hosted on OVH dedicated servers, including email, mailing lists, forums, DNS, and Let’s Encrypt certificates.
- Designed collaborative features including geolocation, interactive mapping, and territorial data visualisation by department and canton.
- Migrated and modernised Drupal 7 to Drupal 9 using Docker, Drush, Composer, UX redesign, and CI/CD pipelines.
Environment: Linux Ubuntu, LAMP, Postfix, Mailman, PHPBB3, Drupal 7/8/9, OpenLayers 3/4, OVH, SPF, OpenDKIM
Application architecture, engineering standardisation, and support
- Architected, industrialised, and supported B2C/B2B web platforms for the Property and Casualty Insurance information system, with a strong focus on innovation, technology foresight, and performance.
- Owned the technical direction of the broker extranet and development and delivery tools; integrated with Carglass through SOAP web services and middleware connecting to the CICS mainframe.
- Standardised JEE environments; ran performance tests; provided Level 3 support and crisis management; implemented centralised SSO/JAAS authentication; decomposed a monolith into microservices; and redesigned BDOC document-generation servers.
- Maintained and enhanced the Eclipse development platform, coached teams, and standardised development practices.
Environment: WebLogic, JBoss, Java/JEE, EJB, JTA, JCA, JAAS, SOAP/XML, Axis, SQL, DB2, MySQL, Ant, Eclipse, BDOC, IBM MQ Series, Hibernate, LoadRunner
Java development and first Lead Developer responsibilities
- Developed Java/web/JEE applications for claims management and accounting across an insurance agency network.
- Designed a parallelised data-injection system in front of multiple mainframe terminals.
Environment: Java, JEE, WebSphere, Oracle, SCORT IC
Oceanic development (formerly Graphtalk AIA)
- Enhanced a life insurance policy management system, adapting interest calculations and accounting close processes to CSG/CRDS regulations.
Environment: Oceanic (ex-Graphtalk AIA), assurance-vie
Education & additional experience
Sustainable Building and Energy Project Manager
Building services project: study of a district heating network using seasonal storage of summer solar heat.
Computer Science Engineer · INSA Rennes
Architecture & Systems. Final-year project: integrating a machine-learning and syntactic speech-recognition system into the Mosaic web browser.
Trainer — Sustainable Building & Energy
Trained adults in methods and tools for designing high-performance buildings and supporting the energy transition.
Home automation
Designed a home-built automation system using Domoticz, Python, Raspberry Pi, Arduino, ESP32, DHT sensors, PWM, H-bridges, power relays, and optocouplers.
Languages & additional skills
Languages
English: Professional working proficiency
Spanish: Basic knowledge
Building & energy
Training, communication, project planning and management, thermal audits, heating and domestic hot water, summer comfort, renovation of traditional buildings, and bio-based materials.