Didier SEGURA

Systems and Network Consultant based in France 🇫🇷

💼 Experience

Cloud Infrastructure Architect @ KALIOP (Jan 2025 - Present)
Designing, implementing, and optimizing scalable, secure, and resilient cloud infrastructures across multi-cloud environments.

Definition of cloud architecture standards and best practices
Multi-cloud infrastructure design (AWS, GCP, Azure, Scaleway)
Kubernetes architecture and governance
Advanced Infrastructure as Code: Terraform, Ansible, Packer
Automation of deployments (GitOps, ArgoCD, Helm)
Implementation of cloud security and compliance (PCI-DSS, IAM, network segmentation)
Cost optimization and performance monitoring (Prometheus, Loki, Fluent, Alloy, Grafana)
Technical guidance to DevOps teams
High-level partnership with Scaleway teams to align infrastructure design, performance, and roadmap with cloud provider capabilities

Consultant Systems & Network @ KALIOP (May 2022 - Dec 2024)
Leading system and network initiatives, specializing in virtualization, deliverability, monitoring, and Linux environments.

Infrastructure As Code: Terraform / Ansible
Monitoring: Icinga2 / Prometheus Alertmanager / Dynatrace / Newrelic
Deployment of Kubernetes clusters (K8s) (AWS / GCP / Azure / Scaleway)
Cloud infrastructure deployment (AWS Fargate)
Application deployment with ArgoCD (Helm Charts)
Building Docker images / AMI via Packer

Infrastructure & Network Manager @ ELEAWAVE (Jun 2017 - Apr 2022)
Responsible for overseeing and optimizing infrastructure and network operations.

Migration of platforms to Openstack (OVH Public Cloud)
Expertise in deliverability (DMARC, DKIM, SPF, Blacklist, S/MIME)
PCI-DSS compliance 3.2.1 (audit, analysis, and compliance)
Platform monitoring: Zabbix / ELK / Prometheus / Grafana
Infrastructure As Code: Chef, Ansible, Packer, Terraform
Team leadership and project management (JIRA)

Systems Engineer @ TEADS (Jun 2015 - Jun 2017)
Engineered and maintained systems for a global advertising marketplace.

Infrastructure deployment under AWS (EC2, ELB, RDS, VPN)
Deployment of build tools / cronjobs: Jenkins and Rundeck
Administration of NoSQL (Cassandra)
Monitoring and Alerting with Zabbix / Grafana / Graphite
Management of AWS services: Route53, RDS, EC2, ElastiCache
Infrastructure As Code: Chef, Terraform

Technical Project Manager @ KALIOP (Apr 2012 - May 2015)
Lead technical projects and initiatives for various clients.

Migration VMware ESX 4 to VMware ESX 5.5
Migration of internal messaging to Gmail
Integration of open-source solutions based on client needs
Infrastructure As Code / Automation: Puppet
Security and performance audit of MySQL
Managed multiple infrastructure and network projects

Technical Consultant @ KeepCore (Apr 2011 - Feb 2012)
Provided system and network consulting services for various clients.

Integration of business applications (Apache Tomcat / JBoss)
Administration of Linux servers (CentOS / Debian)

Systems and Network Engineer @ PoP-Development (Apr 2009 - Apr 2011)
Engineered and maintained systems for B2B business.

Administration of over 100 Gentoo Linux servers
Management of hosting for high-traffic B2B PHP websites

Systems and Network Administrator @ Groupe La Poste (Apr 2007 - Mar 2009)
Maintained systems and networks for La Poste Group.

Administration of a fleet of Windows 2008 & 2012 servers
Administration of Active Directory (GPO) on a domain of 300 client workstations
Administration and monitoring of network equipment (Juniper / Nortel)

🚀 Competences

Infrastructure as Code (IaC): Proficient in using Terraform, Ansible and Chef for automated infrastructure deployment.
Monitoring and Performance: Extensive experience in implementing and managing monitoring solutions like Icinga2, Zabbix, Prometheus, and Grafana.
Cloud Technologies: Expertise in deploying and managing cloud infrastructure, including AWS Fargate and Kubernetes on various cloud platforms (Scaleway, AWS, GCP, Azure).
Team Leadership and Project Management: Proven ability to lead international teams and manage projects efficiently using tools like JIRA.

🌐 Technologies

Infrastructure As Code: Terraform, Chef, Ansible
Monitoring: Icinga2, Zabbix, Prometheus, Dynatrace, Newrelic
Kubernetes: AWS, GCP, Azure, Scaleway
Cloud Services: AWS Fargate, Openstack (OVH Public Cloud), RDB, Redis, OpenSearch
Continuous Deployment: ArgoCD, Helm Charts, Docker, Packer
Security and Compliance: DMARC, DKIM, SPF, Blacklist, S/MIME, PCI-DSS
IT Management: Rundeck
Databases: Cassandra, MySQL, PgSQL
Visualization and Dashboarding: Grafana
Virtualization: VMware ESX
Web Servers: Apache, NGiNX, Apache Tomcat, JBoss
Operating Systems: Linux (Alpine, CentOS, Debian, Gentoo), Windows Server 2008 & 2012
Networking: Juniper, Nortel

💬 Languages

🇺🇸 English: Technical
🇪🇸 Spanish: Basic
🇫🇷 French: Native

👨‍🎓 Education

Master’s Degree in Administration, Security, and Networks
Université Montpellier II | 2006 - 2007
- BAC +5 - MASTER 2
Bachelor’s Degree in Computer Science
Université Montpellier II | 2004 - 2005
- BAC +3 - Licence Informatique
Advanced Technician’s Diploma in Telecommunications Engineering
IUT Valence | 2002 - 2004
- BAC +2 - DUT Génie des Télécommunications