SYNETIS

About the Company

Créé en 2010, Synetis est le leader français des cabinets de conseil - indépendants financièrement - spécialisés en sécurité des Systèmes d’Information. Pure-player de la cybersécurité, nous proposons une démarche complète à nos clients - PME et grandes entreprises de tout secteur d’activité, de l’accompagnement à la mise en œuvre et la gestion de nouvelles solutions au sein de leur SI. Nous intervenons aujourd’hui sur cinq domaines d’expertise : l’audit de sécurité, le CERT, la GRC (Gouvernance, Risques et Conformité), l’Identité Numérique (IN) et la Sécurité Opérationnelle (SecOp). Implanté à Paris, Rennes, et présent sur Toulouse et Marseille, Synetis couvre l’ensemble du territoire national, en étant au plus proche de ses clients - comptant près de 350 collaborateurs. Synetis est qualifié « Prestataires d’Audit de la Sécurité des Systèmes d’Information » (PASSI) par l’ANSSI, depuis 2021. Le CERT Synetis est en cours de qualification « Prestataires de Réponse aux Incidents de Sécurité » (PRIS), depuis début 2024. Certifié Qualiopi, Synetis propose également une large gamme de formations couvrant toutes les expertises cybersécurité - pour permettre à tous de s'adapter et rester performant face aux nouveaux enjeux cyber. Synetis est reconnu comme entreprise où il fait bon vivre et a reçu le label « Happy At Work » et l’accréditation ChooseMyCompany dans les catégories HappyIndex®AtWork et TechAtWork® ! Synetis est signataire de la Charte de la diversité et s’engage aux côtés des entreprises signataires à lutter contre les discriminations et à promouvoir la diversité au sein de l’entreprise. Synetis, c’est un management collaboratif, décloisonné et à l’écoute des collaborateurs pour que chacun puisse s’épanouir pleinement au sein d’équipes soudées et proactives !

Listed Jobs

Company Name

SYNETIS

Job Title

Consultant Sécurité Réseaux Confirmé H/F

Job Description

**Job Title:** Senior Network Security Consultant **Role Summary:** Seasoned security professional joining an operational security practice to design, audit, and implement network protection solutions (firewalls, bastions, SASE, PKI, cloud security). Acts as a knowledge‑management pillar, produces comprehensive documentation, supports pre‑sales activities, mentors junior consultants, and may lead projects across related security domains. **Expectations:** - Minimum 4 years of consulting experience delivering network security solutions (Fortinet, Palo Alto, Stormshield, etc.). - Strong technical curiosity, proactive learning, and continuous knowledge‑sharing mindset. - Ability to communicate fluently in English (written documentation and meetings). - Willingness to support junior staff and contribute to practice development. **Key Responsibilities:** 1. Conduct security audits and define architecture for network hardening projects (firewall, bastion, SASE, PKI). 2. Advise clients on security roadmaps, solution selection, and implementation. 3. Produce and maintain exhaustive technical guides, best‑practice documents, and training materials. 4. Centralize and manage knowledge assets for rapid team access. 5. Develop pre‑sales proposals and templates aligned with practice offerings. 6. Optionally manage project delivery, mentor junior consultants, and participate in bid defense. 7. Contribute to related service lines (certificate management, identity protection, vulnerability management, XDR, data encryption). **Required Skills:** - Deep expertise with enterprise firewalls and next‑gen security platforms (Fortinet, Palo Alto Networks, Stormshield, etc.). - Strong understanding of SASE, PKI, vulnerability management tools, EPP/XDR, cloud security, and AD hardening. - Experience with security vendors (e.g., SentinelOne, Tenable, Varonis, CyberWatch). - Ability to produce high‑quality technical documentation in English. - Excellent analytical, problem‑solving, and client‑facing communication skills. - Proactive self‑learning and technology‑watching habits. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Security, Engineering, or related field (or equivalent professional experience). - Relevant security certifications strongly preferred (e.g., CISSP, CISM, CCNP Security, Fortinet NSE 4/5, Palo Alto Networks PCNSE, or equivalent).

Paris, France

Hybrid

Junior

25-02-2026

Company Name

SYNETIS

Job Title

Expert SOC H/F

Job Description

**Job title**: SOC Expert (Security Operations Center) **Role Summary** Lead technical direction of a growing SOC (15 members) for enterprise clients (including CAC 40). Drive continuous improvement of processes, tools, and detection strategy while managing escalations (N3) and mentoring junior analysts. Act as liaison between security operations and clients, ensuring high‑quality technical communication and incident response. **Expectations** - Maintain and evolve SOC capabilities to support new client scopes. - Deliver advanced threat hunting, incident handling, and KPI reporting. - Build strong client relationships and serve as escalation point for complex incidents. - Participate in solution deployment, monitoring, and documentation upkeep. **Key Responsibilities** - Define and refine SOC strategy, processes, and technical roadmap. - Lead continuous improvement initiatives: tool upgrades, workflow automation, dashboards, and KPI tracking. - Conduct and coordinate threat‑hunting exercises with CERT. - Oversee log collection strategy and ensure robust alert detection. - Handle N3 escalations and provide technical guidance to analysts. - Mentor junior SOC analysts, offering day‑to‑day support and knowledge transfer. - Maintain SOC documentation, knowledge base, and standard operating procedures. - Participate in deployment, integration, and evolution of security solutions, particularly SOC tools. - Ensure timely communication of SOC status and incident outcomes to clients. - Participate in bi‑monthly on‑call rotations. **Required Skills** - 5+ years in detection, incident response, or SOC operations. - Expert proficiency with Sekoia and/or Splunk (daily use). - Strong analytical and problem‑solving abilities. - Excellent written and oral communication in English (B2+). - Proficiency in French (written and spoken). - Ability to work autonomously and adapt to changing environments. - Experience in security incident response, threat hunting, and SOC toolchain. **Preferred Skills** - Background in system/network administration and general information security. - Pedagogical aptitude for training and coaching analysts. - Commercial mindset with strong client‑service orientation. **Required Education & Certifications** - Minimum Bac +5 in Cybersecurity, Computer Science, Information Systems, or Network Engineering. - Valid certifications in SOC or incident response (e.g., GCIH, GCTI, Splunk Certified Power User) are highly regarded.

Cesson-sévigné, France

Hybrid

Mid level

25-02-2026

Company Name

SYNETIS

Job Title

Pentester expérimenté / Red Teamer H/F

Job Description

**Job Title:** Senior Penetration Tester / Red Teamer (H/F) **Role Summary:** Lead offensive security engagements for a diverse client portfolio. Conduct penetration tests (internal and external), participate in Red Team operations, deliver technical reports, and share expertise with the team. **Expectations:** - Perform full‑cycle penetration tests, representing roughly one‑third of internal intrusion tests. - Lead or co‑lead Red Team missions (~6 per year, multi‑month scope). - Produce professional reports, presentations, and client hand‑offs. - Develop proof‑of‑concepts, tools, and exploitation techniques. - Continuously refine methodologies and adopt new attack vectors. - Occasional on‑site client visits for field operations. **Key Responsibilities:** 1. Execute penetration tests (web, network, internal). 2. Engage in Red Team exercises: planning, exploitation, persistence, lateral movement, and C2. 3. Create clear, actionable security findings and mitigate recommendations. 4. Present findings to technical and non‑technical stakeholders. 5. Mentor junior teammates and disseminate knowledge. 6. Innovate script‑based/automated development of exploits and evasion techniques. 7. Contribute to the evolution of audit frameworks and toolsets. **Required Skills:** - Advanced expertise in web and network penetration testing. - Proven Red Team experience, autonomous operation through planning to exploitation. - Mastery of stealth, lateral movement, persistence, C2, OSINT, malware development, EDR bypass, and stealth techniques. - Ability to manage stress and maintain composure during physical intrusion incidents. - Strong communication skills for client reporting and adaptive presentation. - Proficiency in English (both written and spoken). - Comfortable with occasional travel and on‑site client engagement. **Required Education & Certifications:** - Bachelor’s degree or equivalent in Computer Science, Information Security, or related field. - Common security certifications (OSCP, CEH, GPEN, or similar) preferred; not mandatory if equivalent experience demonstrated.

Paris, France

Hybrid

02-03-2026