Mathieu Vallais

Tech Lead Ops | Azure & GCP | IaC · CI/CD · SecOps

Salaire / Taux journalier

Lille, France

Freelance

À distance uniquement

Expertises

AzureGoogle Cloud PlatformDevOpsMicroservicesCybersécuritéKubernetesTerraformAnsiblePythonDockerOpenShiftSite reliability engineeringAdministration système & réseauConduite du changementDéveloppement FrontendDéveloppement Backend

Langues

Français (Maternelle)Anglais (Courant)

À propos

Introduction

Tech Lead Ops with 10+ years specializing in cloud infrastructure, IaC, and SecOps across Azure and GCP. Expert in designing microservice architectures, automating CI/CD pipelines, and leading operational security initiatives including SOC integration and incident response. I deliver scalable, secure cloud solutions through Terraform, Ansible, and Kubernetes while mentoring teams on DevSecOps best practices.

Expérience de travail

Tech Lead Ops

Groupe Rossel La Voix

nov. 2024 - Présent

2 ans

Lille, France

Auchan Retail

févr. 2023 - nov. 2024

1 an 10 mois

Villeneuve-d'Ascq, France

Tech Lead Ops

juil. 2024 - nov. 2024

5 mois

Villeneuve-d'Ascq, France

– Maintained and improved reusable Terraform and Ansible modules used across multiple projects – Designed and deployed features to automate environment decommissioning and cleanup workflows – Supported technical leads in defining target architectures aligned with cloud best practices – Led operational security initiatives, including centralized logging configuration and secure log forwarding to the SOC (Security Operations Center) – Ensured standardized practices across teams through documentation, tooling, and code reviews – Served as a bridge between CloudOps, project teams, and security stakeholders – Contributed to the CloudOps roadmap and internal tooling evolution – Provided mentoring and guidance on IaC, CI/CD, and cloud resource management

Tech Lead SecOps

févr. 2023 - juil. 2024

1 an 6 mois

Lille, France

– Designed a microservice-based architecture tailored for internal IT operations – Defined access control and authentication strategies aligned with security best practices – Developed the solution as an Ansible role covering server patching, reporting, monitoring, and secure application deployment – Authored user documentation, technical diagrams, and operational playbooks – Contributed to both frontend and backend development tasks to support end-to-end delivery – Provided feedback and enhancements on detection rules and alert quality – Participated in COMOPs with the SOC integration team to align tools and processes – Investigated and managed security incidents across various severity levels – Participated in crisis response units during major incidents – Took part in the CSIRT on-call rotation and provided timely incident response – Supported the SecOps team in skill development and operational best practices – Acted as a technical reference across mission topics (SecOps, automation, response readiness) – Maintained and improved the CI/CD and GitOps ecosystem to enhance delivery reliability and observability – Promoted automation and infrastructure-as-code practices across teams

Cloud Operations Engineer

ADEO Services

mars 2018 - oct. 2022

4 ans 8 mois

Ronchin, France

– Containerized an Automic Workload Automation agent for cloud-native environments – Built CI/CD pipelines (GitLab CI, then GitHub Actions) for container build and deployment on OpenShift and GKE – Integrated linters in CI/CD to enforce Python and Docker code quality standards – Managed pod configuration using Helm templates (scalability, HA, preStop hooks, image deployment) – Contributed to cloud migration planning and platform architecture design – Automated compute provisioning workflows on GCP – Developed automated software deployment using AWX (Ansible) and vendor APIs – Managed application UI configurations via Tomcat and configured GCP Load Balancers – Developed Python scripts for cloud automation workflows – Designed CI/CD pipelines to deploy GCP Cloud Functions – Migrated legacy RPM package build process (SVN) to modern GitLab CI, then GitHub Actions – Fully rewrote and documented CI/CD pipelines and managed package publishing to JFrog Artifactory – Delivered internal presentations on DevOps practices and tooling – Actively contributed to improving team understanding of CI/CD, cloud automation, and infrastructure reliability – Ensured stability and operational readiness of the internal scheduling solution – Led continuous improvement initiatives to optimize operability and observability – Provided L3 (Level 3) support and technical administration for enterprise scheduling solutions – Maintained automation tool documentation (MCO), and performed security audits and data cleanup – Managed incidents, problems, and changes as part of continuous service improvement and customer support

System Administrator

ACENSI

oct. 2016 - mars 2018

1 an 6 mois

Villeneuve-d'Ascq, France

– Technical integration, performance shots, integration report writing on projects (e.g., Shared Medical Record) – N2 RUN Management: Incident, Problem, Change, Continuous Improvement – Creation and/or update of procedures and operating modes – Exploitation of WebLogic applications – Integration and monitoring of production plans under $Universe – Development of a site for different URLs (tools/application link) of the client (HTML/CSS/BOOTSTRAP)

Operations Analyst / System Administrator

Econocom

mai 2016 - sept. 2016

5 mois

59100 Roubaix, France

– N2 RUN Management: Incident, Problem, Change, Continuous Improvement, User requests – Creation and/or update of procedures and operating modes – Reporting – N2 System Administration: File system management, OS template updates on VMware, integration and production plan monitoring under $Universe, TIBCO application exploitation

Econocom

oct. 2014 - avr. 2016

1 an 7 mois

Croix, France

System Administrator

oct. 2015 - avr. 2016

7 mois

Croix, France

Application Integrator

oct. 2014 - oct. 2015

1 an 1 mois

System Administrator

Worldline Global

sept. 2013 - août 2014

1 an

Seclin, France

IT Assistant Manager

KPMG France

oct. 2011 - sept. 2013

2 ans

59700 Marcq-en-Barœul, France


Formation

EPSI

Bachelor's degree, IT

2013 - 2014

1 an 1 mois

EPSI

Brevet de technicien supérieur (BTS), SIO

2011 - 2013

2 ans 1 mois

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