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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Chief Information Security Officer - CISO (H/F) - **Company:** FRANCE HORIZON - **Location:** Paris, France - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Access, Java (Programming Language), Software System Penetration Testing, Software as a Service, Cloud Computing, Cyber Security, Linux, Financial Software, Monitoring of Systems, Identity and Access Management, Network Security, Microsoft Security Essentials, Microsoft Servers, Role-Based Access Control, Azure Active Directory, Security Information and Event Management, User Environment Management, Software Vulnerability Management, Data Logging, Software Security, Performance Monitor, Network Server, Devsecops, Docker - **Published:** June 29, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=2ae97b4b0a5ca2ea ## About the Role Do you have experience in Security?, * At least five years of hands-on experience in cybersecurity. * Strong experience in identity, access, infrastructure and network security. * Good knowledge of Microsoft security environments, particularly Microsoft Entra ID. * Experience with vulnerability management, penetration testing, monitoring and incident response. * Ability to define a pragmatic security roadmap and drive remediation actions through to completion. * Autonomous, pragmatic and action-oriented mindset. * Professional fluency in English. * Experience with application security, DevSecOps, business-critical SaaS, financial software or electronic trading environments would be a plus. Technical Environment * Microsoft Entra ID and Microsoft end-user environment * Cloud, on-premise and hybrid infrastructure * Networks, firewalls, endpoints and servers * SIEM, EDR, centralised logging and monitoring tools * Java-based electronic trading platform * Linux, Docker and CI/CD environments * Real-time and business-critical systems ## Description We are currently looking for a Chief Information Security Officer to strengthen our cybersecurity posture and lead the execution of our key security initiatives. This newly created role combines security strategy with hands-on execution. You will assess our existing environment, define clear priorities and work closely with our technical teams to ensure that security improvements are effectively implemented., * Assess and strengthen identity and access management across the organisation. * Improve MFA, SSO, RBAC, privileged-access management and access-review processes. * Strengthen the security of our Microsoft environment, particularly Microsoft Entra ID. * Review the security of internal networks, endpoints, servers and cloud or on-premise environments. * Identify security weaknesses and work with technical owners to implement remediation actions. Cybersecurity Strategy & Roadmap * Assess Horizon's current cybersecurity posture and main areas of exposure. * Define and maintain a pragmatic, risk-based cybersecurity roadmap. * Translate identified risks into prioritised actions, owners and deadlines. * Drive security initiatives and ensure that agreed improvements are effectively delivered. * Track and communicate key risks, remediation progress and security priorities. Vulnerability Management, Monitoring & Incident Response * Establish proactive monitoring of vulnerabilities and emerging threats. * Coordinate penetration tests and manage remediation plans through to closure. * Improve security monitoring capabilities, including SIEM, EDR, logging and alerting. * Define and test incident-response procedures. * Support the investigation and coordination of cybersecurity incidents. Cyber Resilience * Review disaster-recovery, backup and business-continuity capabilities. * Define and test recovery procedures for critical systems. * Organise cyber-crisis simulations with technical and business stakeholders. * Identify and address resilience gaps affecting business-critical services. Security Advisory & Stakeholder Support * Provide practical security guidance to IT, Engineering, Product and Support teams. * Support client security reviews, audits and technical due-diligence processes. * Present key cybersecurity risks and priorities to senior management. * Promote pragmatic security practices aligned with operational and business constraints., * Take ownership of cybersecurity within an international fintech. * Combine security strategy with concrete and visible execution. * Work on business-critical electronic trading technology. * Collaborate closely with experienced technical teams and senior management. * Contribute directly to Horizon's next stage of cybersecurity maturity. * Join an international and human-sized organisation where your work can make a real difference. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [DevSecOps: Injecting Security into Mobile CI/CD Pipelines](https://www.wearedevelopers.com/videos/273-devsecops-injecting-security-into-mobile-ci-cd-pipelines) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [DevSecOps culture](https://www.wearedevelopers.com/videos/783-devsecops-culture) - [DevSecOps: Security in DevOps](https://www.wearedevelopers.com/videos/36-devsecops-security-in-devops) ## Related Articles - [Best Companies to Work For in Paris: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/190-best-companies-to-work-for-in-paris-top-25-companies-in-2023) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Best Companies to Work For in France: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/189-best-companies-to-work-for-in-france-top-25-companies-in-2023) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)