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Matthis HollevilleMH

Matthis Holleville

SRE / DevOps / Cloud Architect

€670/day
Aix-en-Provence, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Matthis

I help teams make their systems more reliable, faster to deliver, and less costly to operate.

I act as Head/Lead SRE & Platform to stabilize and grow demanding production environments.

My focus: reduce risk (incidents, regressions, ops debt), accelerate teams (delivery, devex), and optimize efficiency (costs, capacity, performance).

I establish a clear strategy, prioritize with impact-oriented pragmatism, and implement the right mechanisms: actionable observability, operational standards, mature incident management, automation, platform governance, and alignment rituals.

I am comfortable in "it's burning" contexts (unstable production) as well as in structuring phases (scaling team + platform).

Goal: for the company to deliver faster, with less stress, and predictable production.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Agicap
    Head of SRE / DevOps
    TECH
    November 2020 - Today (5 years and 7 months)
    Aix-en-Provence, France
    Containerization of Agicap applications
    Implementation of a Hybrid Cloud architecture (GCP + Azure)
    Migration of applications to Kubernetes
    Setting up a fleet of self-hosted Gitlab runners on Kubernetes
    Design of the load testing strategy with Gatling
    Implementation of Gitlab CI pipelines
    Implementation of an ArgoCD CD platform
    Implementation of a monitoring + alerting platform (Grafana, Loki, Prometheus, Jaeger, Thanos)
    Deployment of a secrets management system (Hashicorp Vault)
    Use of Terraform for IaC (infrastructure as code)
    Use of Ansible + Packer for infrastructure configuration management
    Deployment of a VPN solution like Bastion with Pritunl
    Implementation of a DevOps platform with Backstage.io

    In addition to technical tasks,

    Technical management of a team of 4 DevOps
    Management of technical relationships with external partners (Google Cloud, ...)
    Participation in monitoring and task progress
    Point of contact for the team
    Implementation of a roadmap & sprint preparation
    Google cloud Microsoft Azure Kubernetes Terraform Argo CD
  • OP-RATE
    Lead DevOps
    TECH
    March 2019 - November 2020 (1 year and 8 months)
    Aix-en-Provence, France
    - Management of a DevOps & Data Engineer team
    - Project management
    - Management of technical relationships with Google Cloud teams
    - Design and implementation of scalable architectures
    - Modernization of monolithic applications to microservices
    - Containerization of applications
    - Implementation of observability platforms
    - Consulting/Workshops with clients
    DevOps Ansible Terraform Kubernetes Google cloud Helm Python GO
  • Caisse d'Épargne / Banque Populaire
    Devops
    BANKING AND INSURANCE
    July 2017 - March 2019 (1 year and 8 months)
    Aix-en-Provence, France
    - Design and implementation of continuous integration platforms for Mobile (Gradle) and Back-end (Java Maven) projects:
    - Setup of Jenkins on Linux environment (RedHat/Debian)
    - Development of shared libraries in Groovy for pipeline integration of projects
    - Definition of Jenkins jobs (automatic via Bitbucket hook)
    - Support for teams in implementing Gitflow
    - Definition of Quality Gates with SonarQube
    - Definition of test scenarios
    - Automatic deployment in different environments via Jenkins jobs
    - Development of SonarQube plugins (JAVA)
    - Development of Jenkins plugins (JAVA)
    - Development of HMIs in Angular 4
    - Collaboration with development and production teams to analyze and resolve detected anomalies.
    - Implementation of a Workflow with Nifi to consume Kafka events, feed ES and Kibana, and display feedback on Slack
    - Creation and provision of Docker images
    DevOps Docker Continuous Integration Git Jenkins NiFi Linux Gradle Angular Back-End Development Front-End Development Java JavaScript

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Education

  • Multimedia graphic design degree
    ARIES
    2016
  • WebMaster
    ARIES
    2017

Certifications

Skill set

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