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

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

Posted 1 week ago by Natobotics

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Negotiable
Undetermined
Undetermined
London, England, United Kingdom
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Access Controls Active Server Pages (ASP) Agile Methodology Angular (Web Framework) ASP.NET C# (Programming Language) Cascading Style Sheets (CSS) Cisco Adaptive Security Appliance (ASA) Firewall Front End (Software Engineering) HTML5 HyperText Markup Language (HTML) JavaScript (Programming Language) Management Network Security Software Development Verification And Validation Vue.js Web Applications Web Development Workflows

Summary: The role of ASP.NET / Front-End Developer focuses on developing and maintaining web applications while ensuring robust network security and firewall configurations. The ideal candidate will possess strong ASP.NET and front-end development skills, along with a solid understanding of network security principles. Collaboration with security and network teams is essential to integrate security protocols and troubleshoot application-layer firewall issues. Experience with Palo Alto Networks is highly advantageous.

Key Responsibilities:

  • Develop and maintain web applications using ASP.NET (C#) and modern front-end technologies (e.g., HTML, CSS, JavaScript, React/Angular).
  • 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.

Key Skills:

  • 5+ years of experience in ASP.NET (C#) web development.
  • Strong front-end skills with HTML5, CSS3, JavaScript, and any modern framework (React, Angular, or Vue.js).
  • 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.

Salary (Rate): undetermined

City: London

Country: United Kingdom

Working Arrangements: undetermined

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

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

  • Develop and maintain web applications using ASP.NET (C#) and modern front-end technologies (e.g., HTML, CSS, JavaScript, React/Angular).
  • 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.
  • Strong front-end skills with HTML5, CSS3, JavaScript, and any modern framework (React, Angular, or Vue.js).
  • 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.
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