Network Security Engineer

Act Digital; Porto; On-site; EUR 60,000 - 90,000; Full time

Job summary

Act Digital is seeking a Senior Network Security Engineer in Porto to shape and implement API-driven automation for enterprise network security. The role combines software engineering with security, focusing on Django REST-based backends, REST APIs, and Fortinet/NSX-T platforms.

The candidate will manage firewall provisioning, policy automation, and IaC-driven deployments while collaborating with cross-functional teams to ensure secure and scalable network solutions in a Portuguese corporate

Qualifications

• 3–6 years of experience in a similar field.
• Senior-level experience combining Software Engineering and Enterprise Network Security.
• Advanced Python 3 development experience.
• Experience with Django or Django REST Framework for scalable APIs and automation backends.
• Strong experience with REST APIs and API-driven automation.
• Hands-on Fortinet/Fortigate and FortiOS architectures.
• Hands-on VMware NSX-T architectures.
• Experience automating firewall policies, address objects, and security groups.
• Strong FortiManager APIs experience, including JSON-RPC and REST.
• Strong NSX-T Policy API experience.
• Experience with Celery and Redis for long-running network operations.
• Experience with Git and CI/CD pipelines, including GitLab CI or GitHub Actions.
• Knowledge of Infrastructure as Code (IaC) principles.
• Strong understanding of enterprise routing, switching, network zoning, and micro-segmentation.
• Experience with network security automation and firewall provisioning.
• Knowledge of pre-change validation, syntax validation, conflict detection, dry-run mechanisms, rollback, and idempotent automation.
• Experience writing unit and integration tests for automation codebases.
• Strong understanding of security policies and compliance requirements for firewall rule management.
• Strong documentation and knowledge sharing.

Responsibilities

• Will design and implement scalable API backends for automation tasks.
• Maintain secure, policy-driven firewall configurations and network security automation.
• Collaborate with DevOps to integrate IaC and CI/CD for network tooling.

Skills

Python 3

Django REST

REST APIs

Fortinet FortiGate

FortiOS

VMware NSX-T

Firewall automation

FortiManager API

JSON-RPC

NSX-T Policy API

Celery

Redis

Git

CI/CD

IaC

Enterprise networking

Security policy compliance

Unit tests

Integration tests

Documentation

Tools

GitLab CI

GitHub Actions

Job description

• Between 3 and 6 years of experience in a similar field;
  
• Senior-level experience combining Software Engineering and Enterprise Network Security .
• Advanced Python 3 development experience.
• Strong experience with Django or Django REST Framework for building scalable APIs and automation backends.
• Strong experience with REST APIs and API-driven automation.
• Hands-on experience with Fortinet/Fortigate and FortiOS architectures.
• Hands-on experience with VMware NSX-T architectures.
• Experience automating firewall policies, address objects, and security groups .
• Strong experience with FortiManager APIs , including JSON-RPC and REST .
• Strong experience with NSX-T Policy API .
• Experience with asynchronous task queues such as Celery and Redis for long-running network operations.
• Experience with Git and CI/CD pipelines , including GitLab CI or GitHub Actions.
• Knowledge of Infrastructure as Code (IaC) principles.
• Strong understanding of enterprise routing, switching, network zoning, and micro-segmentation .
• Experience with network security automation and firewall provisioning .
• Knowledge of pre-change validation, syntax validation, conflict detection, dry-run mechanisms, rollback, and idempotent automation .
• Experience writing unit and integration tests for automation codebases.
• Strong understanding of security policies and compliance requirements for firewall rule management.
• Strong documentation and knowledge-

Network Security Engineer • Porto, Portuguese Republic, PT