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Olivier BoisOB

Olivier Bois

Tech Lead Backend & Platform Engineer – Go, Cloud

€680/day
Nantes, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Olivier

Tech Lead Backend / DevOps / Platform Engineer, I help CTOs, CIOs, and product/tech teams to make their delivery more reliable, modernize their architecture, and accelerate their development.

Core expertise: Go, backend, REST API, microservices, GitLab CI/CD, GitHub Actions, Jenkins, Cloud Build, Docker, Kubernetes, Helm, Terraform, GCP, OVHcloud, observability, Prometheus, Grafana, Loki, SonarQube, Artifactory, PostgreSQL, MySQL, Redis, Kafka, Elasticsearch / OpenSearch.

I intervene in contexts where releases are slow or risky, CI/CD pipelines are fragile, environments are unstable, incidents are recurring, technical debt is too heavy, or legacy architectures are difficult to evolve.

My interventions cover:
• Go backend development;
• API / microservices architecture;
• CI/CD industrialization;
• Cloud or legacy migration;
• Terraform Infrastructure as Code;
• Kubernetes, Docker, Helm;
• observability, logs, alerting, runbooks;
• technical audit and action plan;
• Tech Lead / Head of Engineering coaching;
• standardization of engineering practices.

I have worked in demanding environments: migrating applications to GCP, Kubernetes platforms, e-commerce, banking compliance, internal infrastructure tools, industrial CI/CD chains, SonarQube, Artifactory, GitLab, Jenkins, and hybrid cloud environments.

I also integrate AI into development practices: coding agents, advanced prompting, assisted refactoring, test generation, accelerated debugging, technical documentation, scripts, runbooks, legacy analysis, and team training.

Objective: reduce delivery friction, make production releases more reliable, make the architecture more maintainable, and provide teams with concrete, actionable, and sustainable standards.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Nantes (up to 50km), Rennes (up to 50km), Angers (up to 30km)

Experience

  • PharmaGDD
    Cloud Migration & CI/CD Industrialization – PharmaGDD / PharmaGDD2
    MEDICAL
    February 2026 - June 2026 (4 months)
    Nantes, France
    Technical support for the migration of a health e-commerce platform from GCP to OVHcloud, followed by the preparation of the new PharmaGDD2 architecture.

    Key achievements:
    • audit of the existing GCP environment and definition of the OVH target;
    • migration of application and data environments;
    • Docker Compose deployment on OVH VM;
    • GitHub Actions industrialization;
    • adaptation of deployment scripts;
    • MySQL, Redis, Elasticsearch / OpenSearch management;
    • Cloudflare, DNS, SSL, and CDN configuration;
    • management of volumes, media, permissions, cache, and logs;
    • implementation of runbooks and technical documentation;
    • preparation of a Prometheus, Grafana, Loki, Alertmanager observability stack;
    • scoping of a Symfony / Sylius / PHP / FrankenPHP architecture for PharmaGDD2.

    Context: critical e-commerce, application legacy, service continuity constraints, cloud migration, delivery optimization, and infrastructure stabilization.
    OVHCloud GCP Cloud Docker Github Actions Terraform
  • OVHCloud
    Go / DevOps Developer – Internal Infrastructure Tools, Terraform, Kafka
    TECH
    November 2025 - Today (7 months)
    Nantes, France
    Development and evolution of internal tools related to infrastructure, datacenters, and operational workflows.

    Achievements:
    • Go backend development;
    • Vue.js interfaces;
    • integration with internal tools;
    • infrastructure workflows;
    • Terraform;
    • Kafka;
    • contribution to monitoring, reporting, and automation tools.

    Context: demanding technical environment, operational constraints, high volume, and reliability.
    Golang Terraform Apache Kafka Vue.js DevOps
  • Crédit Agricole Technologies et Services
    CI/CD & DevOps Consultant – GitLab, SonarQube, Artifactory Industrialization
    BANKING AND INSURANCE
    January 2025 - November 2025 (10 months)
    Nantes, France
    Intervention within a CI/CD factory to industrialize build, quality, security, and publication chains.

    Achievements:
    • GitLab CI templates;
    • SonarQube integration;
    • Artifactory publication;
    • audit and quality pipelines;
    • automation of cross-functional jobs;
    • project team support;
    • standardization of CI/CD practices for different technical environments.

    Objective: make pipelines more robust, reusable, and usable by squads.
    Artifactory SonarQube Gitlab CI/CD CI/CD DevOps

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Education

  • Professional Title (TP) level 6 CDA, Application Designer Developer
    ENI Ecole Informatique
    2021
    Titre professionnel (TP) de niveau 6 CDA, Concepteur développeur d'applications
  • Professional Baccalaureate in Public Works Machinery Mechanics, Mechanical Engineering / Mechanical Technology / Technician
    lycée professionnel Claude LEHEC
    2000
    Bac professionnel mécanique engins de travaux publics, Ingénierie mécanique / technologie mécanique / technicien

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