Senior Network & Cloud Engineer (Lisbon or Porto)

Claranet Portugal; Lisboa; On-site; EUR 65,000 - 90,000; Full time

Job summary

Claranet Portugal is seeking a Senior Network & Cloud Engineer to join our internal team in Lisbon or Porto. You will design and manage network architectures across on‑premises, Azure, and hybrid environments, focusing on security, connectivity, and performance.

Proficiency in Azure networking, TCP/IP, VPNs, and security policies is essential, along with scripting experience (PowerShell or Python). The role emphasizes collaboration across Cloud, Infrastructure, and Operations teams.

Qualifications

• Advanced experience with Microsoft Azure Networking.
• Solid experience in Network Engineering, Cloud Networking, or Network Security.
• Strong knowledge of TCP/IP, routing, switching, DNS, BGP, NAT, IPsec, VPN, TLS.
• Experience with enterprise firewalls and network security policies.
• Knowledge of hardening, access control and infrastructure security.

Responsibilities

• Design, implement, and manage network architectures in on-premises, Azure, and hybrid environments.
• Configure virtual networks, subnets, and routing.
• Manage VPN Gateway and ExpressRoute; Azure Firewall and NSGs.
• Setup Application Gateway, Load Balancer, and Private Link.
• Ensure secure connectivity between data centers, offices, and cloud platforms; monitor availability, performance, and security.

Skills

Azure Networking

TCP/IP

VPN & TLS

Network Security

Scripting (PowerShell/Python)

English proficiency

Tools

Terraform

Bicep

ARM Templates

Cloud Networking

Kubernetes Networking

Job description

We're fast learners, hard workers, natural collaborators... and we Make Modern Happen!

Our ambition is to unlock the potential of our digital world so that organisations everywhere can innovate and thrive securely.

We aim to achieve this goal by bringing together the world’s most talented people and the most powerful technologies, combining them to address our customers' challenges and to build something stronger together.

Right now, we are looking for a Senior Network & Cloud Engineer to integrate our internal team, based in Lisbon or Porto.

Your responsibilities include:

• Design, implement, and manage network architectures in on-premises, Azure, and hybrid environments;
• Virtual Networks, subnets, and routing;
• VPN Gateway and ExpressRoute;
• Azure Firewall and Network Security Groups;
• Application Gateway, Load Balancer, and Private Link;
• Private DNS and connectivity between environments.

• Ensure secure connectivity between data centers, offices, cloud platforms, and enterprise systems;
• Implement Zero Trust principles, network segmentation, and least privilege;
• Manage firewalls, VPNs, security policies, and traffic protection mechanisms;
• Monitor the availability, performance, and security of the infrastructure;
• Investigate and resolve network and security incidents, identifying the root cause;
• Collaborate with Cloud, Infrastructure, Security Operations, and Operations teams;
• Contribute to the automation, documentation, and continuous improvement of environments;
• Support migration, transformation, and technology modernization projects.

You must have:

• Solid experience in Network Engineering, Cloud Networking, or Network Security;
• Advanced experience with Microsoft Azure Networking;
• Strong knowledge of TCP/IP, routing, switching, DNS, BGP, NAT, IPsec, VPN, and TLS;
• Experience with enterprise firewalls and network security policies;
• Knowledge of hardening, access control, and infrastructure security;
• Ability to troubleshoot in complex and distributed environments;
• Experience with scripting or automation, preferably PowerShell, Python, or equivalent;
• Good knowledge of technical English;
• Ability to work independently, a sense of responsibility, and a focus on problem-solving.

We value:

• Experience with Google Cloud Platform, specifically VPC, Cloud VPN, Cloud Interconnect, Cloud Load Balancing, and Cloud DNS;
• Knowledge of Terraform, Bicep, ARM Templates, or other Infrastructure as Code tools;
• Experience with Cisco, Fortinet, Palo Alto, Check Point, or equivalent solutions;
• Knowledge of Kubernetes Networking, SD-WAN, SASE/SSE, or SIEM/SOAR;
• Certifications such as Azure Network Engineer Associate, Azure Security Engineer Associate, CCNP, or Google Cloud Professional Cloud Network Engineer;
• Experience in regulated environments or those with high security and availability requirements.