Jocelyn Cerrone
Jocelyn Cerrone

Head of Cybersecurity | Cloud, Kubernetes, IAM & PKI Security Engineer

Open to offers · Member since 29 Sep 2026
Location
Paris, France
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Lead

About

Professional summary

I am a hands-on cybersecurity engineer with more than three years of experience building and operating security for B2B SaaS platforms. I currently lead cybersecurity for a supply-chain traceability platform supporting large enterprise customers across Europe.

I specialize in cloud and Kubernetes security, with practical experience securing GKE environments on GCP through Terraform, RBAC, NetworkPolicies, OPA/Gatekeeper, Falco, Cosign, and Sigstore. I build security controls that are operational, automated, and aligned with engineering workflows.

My core expertise includes identity and access management, secrets management, and public key infrastructure. I have deployed federated identity using Keycloak, LDAP, SAML 2.0, OIDC, OAuth2, RBAC, and SSO, while operating HashiCorp Vault for dynamic secrets, PKI, certificate rotation, and high availability.

I also lead governance, risk, and compliance initiatives, including ISO/IEC 27001, EBIOS RM risk assessments, GDPR, NIS 2, PCI-DSS, and security policy development. I have written ISMS documentation, implemented technical controls, and supported certification audits.

I bring experience in vulnerability management, endpoint protection, SIEM engineering, SOAR automation, incident response, and security awareness. My approach combines technical depth with the ability to translate customer and contractual requirements into pragmatic security roadmaps.

Based in Paris, I am an EU citizen and equipped for remote work. I am a native French speaker, fluent in English, and have intermediate Spanish proficiency.

Skills

33 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Head of Cybersecurity Tilkal

I lead the end-to-end information security programme for a B2B SaaS supply-chain traceability platform operating a large European B2B blockchain network. I manage security architecture, customer audit engagement, contractual security requirements, security roadmaps, risk assessments, GDPR compliance, and the ISO/IEC 27001 certification programme.

I operate HashiCorp Vault at scale for dynamic database, AWS, and PKI secrets, using AppRole and Kubernetes authentication, audit logging into the SIEM, Raft high availability, and automated unsealing. I built an internal PKI that automates TLS and mTLS certificate issuance and rotation for Kubernetes microservices through cert-manager.

I deployed and operate the IAM platform using Keycloak and LDAP, providing federation, RBAC, SSO, SAML 2.0, and OIDC across internal and SaaS applications. I harden GKE clusters with RBAC, NetworkPolicies, OPA/Gatekeeper admission controls, Falco runtime detection, and Cosign/Sigstore image signing.

I also own endpoint security across Windows, Linux, and macOS devices, and rolled out HarfangLab EDR across cloud workloads and more than 170 endpoints. I developed SOAR playbooks for automated high-severity alert containment and represent security in enterprise customer audits.

Cybersecurity Consultant Extrabank Ltd

I led the vulnerability management programme, conducting Nessus scanning, prioritizing findings using CVSS, producing monthly executive reporting, and coordinating patch remediation with development teams against defined SLAs.

I delivered security training workshops for IT staff and privileged users. The sessions included phishing simulations, incident response procedures, and practical security awareness guidance.

Education

Learning history

CSB.SCHOOL (Cybersecurity Business School)

M.Sc. Cybersecurity Solutions Development, Cybersecurity

RNCP Level 7 and EQF Level 7 master's-level programme accredited SecNumedu by ANSSI. Completed part-time alongside full-time employment.

Institut des Hautes Études de Défense Nationale

Jeune IHEDN, National Defence and Security Studies

National defence and security studies programme delivered by a French government institute.

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