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Renaud SerenaRS

Renaud Serena

DevOps - SRE - AWS certified

€560/day
Bayonne, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Renaud

With over 10 years of experience within a European leader in payments, I have developed in-depth expertise in the monitoring and automation of critical 24/7 infrastructures. Today, I am putting my skills and commitment to work for your projects.

Key Expertise:
- Design of modern and resilient cloud infrastructures
- Implementation of robust CI/CD pipelines
- Maintenance in operational condition (MCO) of complex environments
- Implementation of DevOps best practices
- Complete automation of infrastructure deployments
- Securing cloud and on-premise environments
- Deployment and management of observability tools

Technological Stacks:
- CI/CD: GitLab CI
- Cloud: AWS, OVH
- Containerization: Docker, Kubernetes
- Infrastructure as Code: Terraform, Ansible, Puppet
- Observability: ElasticSearch, Logstash, Loki, Kibana, Grafana, Prometheus
- Languages: Bash, Python
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Bayonne (up to 50km), Bordeaux (up to 20km), Paris (up to 20km)

Experience

  • Worldline
    Ops Team Lead
    April 2022 - December 2024 (2 years and 9 months)
    Paris, France
    • Management of an international team of 6+ people (EMEA + APAC)
    • Implementation of observability for our critical services (10 billion transactions per year, 250 clients, 50 countries)
    • L2/L3 support and incident resolution (24/7 "follow-the-sun")
    • Creation and updating of technical procedures related to alarms
    PagerDuty Prometheus Git Terraform Puppet Ansible Bash Python Agile methodology Scrum Grafana PostgreSQL
  • Worldline (ex-Ingenico)
    Production Engineer
    May 2013 - March 2022 (8 years and 10 months)
    Paris, France
    • Creation of ad-hoc monitoring scripts (Bash/Python).
    • L2/L3 support and incident resolution (24/7 "follow-the-sun").
    • Creation and updating of technical procedures related to alarms.
    • Deployment of applications in production (via Puppet/Ansible).
    • Administration of HSMs (Futurex Guardian/RKMS).
    Python Bash Git PostgreSQL Grafana Graphite Agile methodology Scrum
  • Edics
    Technical Project Manager
    July 2012 - April 2013 (9 months)
    Villefranche-sur-Saône, France
    • PHP and UMS programming (proprietary language).
    • Writing technical documentation.
    • Client project management.
    PHP LaTeX

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Education

  • Professional License SIL NTI
    Faculté des sciences Saint-Charles
    2009
    Licence professionnelle SIL NTI
  • Bachelor in Computer Animation and Multi media
    University of the West of Scotland
    2008
    Bachelor in Computer Animation and Multi media

Skill set

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