Devoteam Cyber Trust | Network Security Architect | Telecom Sector

Devoteam; Figueirinha; On-site; EUR 48,000 - 72,000; Full time

Job summary

Devoteam Cyber Trust in Portugal is seeking a Network Security Consultant to join our Network Security Operations team. This role focuses on VMware NSX microsegmentation, firewall automation, and API integration to strengthen enterprise security.

You will lead daily firewall and WAF management, design zero-trust policies, automate security tasks via REST APIs, and mentor junior engineers while collaborating with Cloud/DevOps teams.

Qualifications

• Minimum 2+ years of hands-on experience with advanced microsegmentation solutions, specifically VMware NSX and/or VSF9.
• API integration experience with NSX and VSF9 APIs for automation.
• Fortinet FortiGate API automation experience transferable to VMware ecosystem.
• Strong knowledge of TCP/IP, routing, switching, VPNs, and modern security posture design.
• Professional working proficiency in English (written and spoken).

Responsibilities

• Network Security Operations: Lead the daily management, maintenance, and troubleshooting of enterprise Firewalls, Web Application Firewalls (WAF), and Proxy systems.
• Microsegmentation Architecture: Design, deploy, and enforce granular zero-trust microsegmentation policies within VMware virtualized environments to secure East-West traffic.
• Automation & Orchestration: Streamline operational workflows by consuming and interacting directly with infrastructure REST APIs to automate routine security policy updates.
• Incident & Change Management: Serve as a high-level escalation point for complex network security incidents, performance bottlenecks, and scheduled infrastructure changes.
• Collaboration & Mentorship: Partner with cross-functional infrastructure and Cloud/DevOps teams while providing technical guidance to junior engineering staff.

Skills

NSX/VSF9

API automation

Fortinet API

TCP/IP networking

English proficiency

Tools

VMware NSX

VSF9

Fortinet FortiGate

Job description

Company Description

Devoteam Cyber Trust is the Cybersecurity specialist arm of the Devoteam Group. With our 800+ experts located across EMEA, we aim to establish cybersecurity as an enabler of business success rather than a gatekeeper. We leverage an end-to-end approach to Cyber Resilience, Applied Security, and Managed Security services to secure the tech journey of large and medium-sized companies from all sectors and industries.

Since 2009, previously known as INTEGRITY, our team based in Portugal is specialised in providing cutting-edge Managed Security Services that combine its expertise and proprietary technology to consistently and effectively reduce the cyber risk of our clients.

The comprehensive service range includes Persistent Intrusion Testing, ISO 27001, PCI-DSS, GRC Consulting and Solutions, and Third-Party Risk Management. ISO 27001 (Information Security) and ISO 9001 (Quality) certified, PCI-QSA, and member of CREST and CIS - Centre for Internet Security, we provide services to a considerable number of clients, operating in more than 20 countries.

Job Description

We are seeking a Network Security Consultant to join our Network Security Operations team. This position demands a technical expert capable of maintaining infrastructure stability while driving automation and advanced security practices. You will serve as a subject matter expert, focusing heavily on VMware microsegmentation, firewall automation, and API integration.

Key Responsibilities

• Network Security Operations: Lead the daily management, maintenance, and troubleshooting of enterprise Firewalls, Web Application Firewalls (WAF), and Proxy systems.

• Microsegmentation Architecture: Design, deploy, and enforce granular zero-trust microsegmentation policies within VMware virtualized environments to secure East-West traffic.

• Automation & Orchestration: Streamline operational workflows by consuming and interacting directly with infrastructure REST APIs to automate routine security policy updates.

• Incident & Change Management: Serve as a high-level escalation point for complex network security incidents, performance bottlenecks, and scheduled infrastructure changes.

• Collaboration & Mentorship: Partner with cross-functional infrastructure and Cloud/DevOps teams while providing technical guidance to junior engineering staff.

Qualifications

• Experience: Minimum 2+ years of dedicated hands‑on experience with advanced microsegmentation solutions, specifically VMware NSX and/or VSF9.

• API Expertise: Proven background integrating with and consuming NSX APIs and VSF9 APIs for automation tasks.

• Alternative Profile: Strong expertise in Fortinet / FortiGate API automation will be fully considered as a transferrable skill set into the VMware ecosystem.

• Core Security Protocols: Deep knowledge of TCP/IP, routing, switching, VPNs, and modern security posture design.

• Languages: Professional working proficiency in English (written and spoken).

Nice-to-Have Qualifications

• Scripting: Solid proficiency in Python for network automation, infrastructure‑as‑code, and custom API tooling.

• Certifications: Relevant industry certifications such as VCP‑NV / VCAP‑NV (VMware), NSE 4+ (Fortinet), or general security credentials (CISSP, CISM).

Additional Information

Devoteam Group works for equal opportunities, promoting its employees based on merit and actively fights against all forms of discrimination. We are convinced that diversity contributes to the creativity, dynamism and excellence of our organization. All of our vacancies are open to people with disabilities.