Julien CHAMPSEIX
Chief Information Security Officer
Veille technologique
Linux
Chef de projet
Monitoring
Réactivité
42 ans
Permis de conduire
SUCY EN BRIE (94370) France
Situation professionnelle
En poste
Ouvert aux opportunités
Présentation
A technology leader with over 15 years of experience in designing secure and scalable cloud architectures. I have led complex digital transformations that have delivered measurable ROI: a 40% reduction in cloud costs (FinOps), a 60% improvement in time-to-market, and ISO 27001/SOC2 compliance achieved without operational friction.
My philosophy: Security is not a hindrance but a growth accelerator when managed with agility and intelligence (e.g., integrated into product design, ...).
Key achievements:
→ Migration from an on-premises platform to the cloud, incorporating a vision and strong security enhancements
→ Multi-cloud architecture (GCP/AWS) supporting 30M+ users with a 99.99% SLA
→ FinOps strategy that saved €3M annually while doubling capacity
→ DevSecOps framework reducing vulnerabilities by 85% in production
→ Team of 25+ engineers transformed into a center of technical excellence
Expertise: Security Awareness - Cloud Architecture • FinOps • Product Security • Platform Engineering • Team Leadership • Business Strategy
Passionate about building and integrating technology solutions that combine performance, security, and cost-efficiency.
My approach: #LeverageBusiness #BuildSecure #ScaleSmart #LeadWithPurpose
My philosophy: Security is not a hindrance but a growth accelerator when managed with agility and intelligence (e.g., integrated into product design, ...).
Key achievements:
→ Migration from an on-premises platform to the cloud, incorporating a vision and strong security enhancements
→ Multi-cloud architecture (GCP/AWS) supporting 30M+ users with a 99.99% SLA
→ FinOps strategy that saved €3M annually while doubling capacity
→ DevSecOps framework reducing vulnerabilities by 85% in production
→ Team of 25+ engineers transformed into a center of technical excellence
Expertise: Security Awareness - Cloud Architecture • FinOps • Product Security • Platform Engineering • Team Leadership • Business Strategy
Passionate about building and integrating technology solutions that combine performance, security, and cost-efficiency.
My approach: #LeverageBusiness #BuildSecure #ScaleSmart #LeadWithPurpose
Head of Infrastructure & CISO
SlimPay
Août 2016
à novembre 2020
- Management of the DevOps, SupOps, and PaymentOps teams (~ 10 people)
- Mentoring the DevOps team (Technology, Cloud, DevOps practices, etc.)
- Infrastructure containerization (Docker, ECR, ECS)
- Management of the infrastructure’s PCI-DSS “service provider” certification process. (Certification obtained)
- Migration vers le Cloud AWS (en alignement avec les prérequis du régulateur Banque de France/ACPR)
- Review and strengthening of security measures (bastion host, storage encryption, in-transit traffic, etc.)
- Implementation of high-availability solutions for key components (Load Balancer, Database Cluster, Messaging, etc.)
- Management of supervision and monitoring systems (Kafka, ElasticSearch, InfluxDB, Grafana, etc.)
- Implementation of continuous integration/continuous deployment tools (Jenkins/GitLab CI)
- Use of configuration management tools (Ansible)
- Implementation of Infrastructure as Code (IAC) using Terraform, including management of multiple AWS accounts
- Define a DoD (Definition of Done) for development and infrastructure deployment
- Agile project & task management (daily stand-ups, Kanban, etc.)
- Management of the Infrastructure & Platform budget
- Setup of tools for support teams (CS & SupOps)
- Implementation of the technical vision to support our technological business growth
- Sharing knowledge and providing guidance on the AWS Cloud to development teams
