Senior Security Engineer - freelance

Posted 3 Days Ago
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Hiring Remotely in Athens, GRC
Remote
Senior level
Information Technology • Consulting
The Role
Design, implement, and maintain cybersecurity solutions for government and critical infrastructure. Configure and monitor security controls and SIEM, investigate incidents, remediate vulnerabilities, manage certificates/HSMs, secure on‑prem/cloud/hybrid environments, enforce GRC-aligned policies, automate detection/response, produce risk assessments and documentation, and collaborate with stakeholders.
Summary Generated by Built In
Company Description

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 an Senior 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 a Senior 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.

In the following link you may find our CV Submission privacy notice: https://netcompany.com/cv-submission-privacy-notice/

Skills Required

  • University degree in Cybersecurity, Computer Science or related field and minimum 10 years professional cybersecurity experience
  • Proven expertise with security standards and compliance (ISO 27001, NIS/NIS2, GDPR or similar)
  • Experience with SIEM tooling and security event analysis (e.g., Splunk)
  • Strong knowledge of identity/security protocols and certificate management: SSL/TLS, X.509, SAML, OAuth, OpenID Connect, JWT
  • Experience with key management and HSMs: AWS KMS, KMIP, PKCS#11, hardware security modules
  • Solid understanding of cryptography and algorithms (AES, GCM, PBKDF2, HMAC, SHA-2)
  • Advanced network security and architecture knowledge (next‑gen firewalls, WAFs e.g., Fortigate, Imperva; TCP/IP, IPSec, HTTP/HTTPS, routing, switches)
  • Proficiency in Linux/Unix systems, system hardening, OS security and secure configuration
  • Experience with secure SDLC, scripting/programming and automation for security monitoring and response
  • Experience securing large-scale, complex environments (data centres, government systems, cloud/hybrid infrastructures)
  • Strong English communication skills (French knowledge is an advantage)
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The Company
HQ: Copenhagen
6,701 Employees
Year Founded: 2000

What We Do

Netcompany is the fastest growing and most successful IT service company in Northern Europe. Today, we lead the way with digitalisation in Northern Europe, building modern IT solutions and introducing advanced use of technology for large global customer, side by side in agile teams. Netcompany leads the way in the next generation of IT consulting, with keen focus on Customer Value, Speed and Guaranteed delivery. We build IT solutions through agile delivery methods with speed to market. Our solutions are based on modern legacy free technology and industry standards. We build scalable robust solutions that will adapt to changing business needs, fully anchored in the organization. We know what it takes to build, operate and maintain IT solutions across all sectors and industries. We constantly challenge and innovate, and ensure that Development and Operations resources work together to ensure stability with speed. Netcompany’s vision is to be the leading digital Challenger in Northern Europe. We help Northern European businesses become future digital winners. The clients of Netcompany are large companies from a diverse array of industries and the public sector. Current and recent clients include: Danish Customs and Tax Administration (SKAT), ATP, Carlsberg, Royal Danish Ministry of Foreign Affairs, Ørsted, Airbus, Ministry of Justice (UK), Sodexo, Oslo Local Authority and Post Nord to name a few. We are headquartered in Copenhagen and besides the offices in Denmark, we are located in UK, Netherlands, Poland, Norway and Vietnam, with an employee count of more than 6500+. Privacy policy: https://www.netcompany.com/int/Privacy-Policy

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