Senior Security Engineer - freelance

Netcompany; France; Sur place; EUR 65 000 - 90 000; Plein temps

Avantages offerts par ce poste

Diverse working environment

Opportunity for professional growth

Résumé du poste

Netcompany is seeking a Senior Security Engineer to design and implement advanced cybersecurity solutions that safeguard government systems and critical infrastructure. The role requires extensive experience in cybersecurity, a solid understanding of security standards like ISO 27001, and proficiency with various security technologies.

If you thrive in a diverse environment and are eager to work on impactful projects that benefit millions globally, we encourage you to apply.

Qualifications

• 10 years of professional experience in cybersecurity or secure systems engineering.
• Proven expertise in security standards like ISO 27001 and GDPR.
• Experience securing complex environments, including data centres.

Responsabilités

• Design and maintain cybersecurity solutions for critical infrastructure.
• Monitor and investigate security events using SIEM tools.
• Implement cybersecurity policies in line with standards.

Connaissances

Cybersecurity expertise

Knowledge of security standards

Network security experience

Linux/Unix proficiency

Communication skills in English

Formation

University Degree in Cybersecurity or related field

Outils

SIEM tools (e.g., Splunk)

Next-generation firewalls (e.g., Fortigate)

AWS KMS

Description du poste

Are you ready to shape the future technological landscape in Europe?
We are dedicated to responsible digitalisation, building innovative, inclusive solutions that drive meaningful impact. With over 8,900 professionals across Europe, we help EU institutions, public and private organisations thrive in a rapidly evolving digital world. Are you ready to shape the future through technology? Your journey starts here. Take a look at some of our impactful projects here: https://netcompany.com/cases/

Job Description

So, what are the main responsibilities of anSenior Security Engineer in Netcompany?

The Senior Security Engineer is responsible for designing, implementing, and maintaining cybersecurity solutions to protect the organization’s systems, infrastructure, and data.

As aSenior Security Engineer, you will:

• Design, implement, maintain, and continuously improve cybersecurity solutions protecting government systems and critical infrastructure using modern security technology stacks.
• Integrate and securely configure security controls in line with organizational policies, EU regulations, and public sector standards.
• Monitor, evaluate, and investigate security controls and events, including security event analysis and SIEM tooling (e.g., Splunk investigations).
• Identify, analyze, and remediate vulnerabilities and incidents, including patching, system hardening, and certificate and cryptographic asset management.
• Ensure the security and resilience of systems across on-premise, cloud, and hybrid environments, including high-availability infrastructures.
• Implement and enforce cybersecurity policies, procedures, and controls aligned with governance, risk, and compliance (GRC) frameworks.
• Develop scripts, tools, and automation to enhance security monitoring, detection, and response capabilities.
• Produce technical documentation, risk assessments, and audit reports; communicate findings to stakeholders and management.
• Collaborate with internal teams, external providers, and public sector bodies; provide cybersecurity expertise and user support.

Qualifications

What would make you a fit for the role:

• University Degree in Cybersecurity, Computer Science or related field and minimum 10 years of professional experience in cybersecurity, information security, or secure systems engineering within complex environments.
• Proven expertise in security standards, frameworks, and compliance requirements (e.g., ISO 27001, NIS/NIS2, GDPR, or similar public sector frameworks).
• Strong knowledge of security technologies and identity protocols: SSL/TLS, X.509, SAML, OAuth, OpenID Connect, JWT, AWS KMS, KMIP, PKCS#11, including digital certificates and hardware security modules (HSMs).
• Solid understanding of cryptographic principles and algorithms: AES, GCM, PBKDF2, HMAC, SHA-2.
• Advanced knowledge of network security and architecture including next-generation firewalls and web application firewalls (e.g., Fortigate, Imperva), TCP/IP, IPSec, HTTP/HTTPS, routing, firewalls, routers, and switches.
• Proficiency in Linux/Unix systems, system hardening, operating system security, and secure configuration practices.
• Experience with secure software development lifecycle (SDLC), programming/scripting, and automation in security contexts.
• Experience securing large-scale, complex environments (e.g., data centres, government systems, cloud and hybrid infrastructures).
• Strong communication skills in English, knowledge of French is an advantage.

Additional Information

If you are looking forward to be part of a diverse environment, and have the opportunity to work alongside well-experienced professionals, on challenging, large-scale projects that directly impact millions of citizens around the globe, then this is the place to be!

#LI-SS2

Please upload your CV in English via the Apply button. All applications will be treated as strictly confidential.

We ensure equal opportunities, treatment, and consideration to all candidates. Discrimination based on sex, racial or ethnic origin, religion or belief, disability, age, sexual orientation or marital status, physical or mental disability, or any other factor protected by applicable laws and regulations is prohibited. As part of the Netcompany culture, we respect human rights and focus on creating a positive workplace, where all employees are valued, and where diversity and inclusion are a vital part of our everyday working experience.