ASP.NET / Front-End Developer - network security and firewall configuration

N Consulting Limited; United Kingdom; Remote; GBP 45,000 - 65,000; Full time

Job summary

A leading company in network security is seeking an ASP.NET / Front-End Developer to fortify application security through the integration of firewall protocols and development standards. You will collaborate with network teams while leveraging your expertise in ASP.NET and network security for impactful contributions. This role promises diverse technical challenges and opportunities for professional growth.

Qualifications

• 5+ years of experience in ASP.NET web development.
• Good understanding of network security principles and firewall rules.
• Exposure to Palo Alto, Cisco ASA, or Fortinet.

Responsibilities

• Collaborate with security and network teams to integrate firewall policies.
• Assist in designing and validating firewall rules and ACLs.
• Troubleshoot issues related to application-layer firewall.

Skills

ASP.NET (C#)

Network Security Principles

Firewall Rules

DevOps/SRE Collaboration

Tools

Firewall Management Tools

Job description

ASP.NET / Front-End Developer - network security and firewall configuration at N Consulting Ltd

We are looking for a skilled ASP.NET / Front-End Developer with a strong foundation in network security and firewall configuration. The ideal candidate will have hands-on experience with ASP.NET technologies and front-end development, coupled with working knowledge of firewall rules, access controls, and network policies. Experience with Palo Alto Networks is a strong advantage.

Key Responsibilities:

• Collaborate with security and network teams to integrate firewall policies and security protocols into applications.
• Assist in the design and validation of firewall rules and ACLs, ensuring secure access to application modules.
• Translate security and compliance requirements into front-end behavior and access control logic.
• Troubleshoot issues related to application-layer firewall conflicts and rule enforcement.
• Work closely with DevOps/network teams on deployment, access, and secure routing.
• Participate in code reviews, architecture discussions, and Agile ceremonies.

Required Skills & Experience:

• 5+ years of experience in ASP.NET (C#) web development.
• Good understanding of network security principles, firewall rules, ports, protocols, and access control.
• Exposure to firewall management tools (e.g., Palo Alto, Cisco ASA, Fortinet).
• Ability to read and apply basic firewall configurations to development workflows.
• Experience in working with DevOps/SRE teams and understanding deployment pipelines.