ASP.NET / Front-End Developer

N Consulting Global; London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading IT consulting company is seeking an experienced ASP.NET / Front-End Developer with a strong knowledge of network security and firewall configurations. In this role, you will ensure the integration of security protocols and contribute to application development. The ideal candidate will have significant hands-on experience, particularly with Palo Alto Networks, and collaborate closely with security and DevOps teams.

Qualifications

• 5+ years of experience in ASP.NET (C#) web development.
• Understanding of network security principles and firewall rules.
• Experience with Palo Alto Networks is a strong advantage.

Responsibilities

• Collaborate with security and network teams to integrate firewall policies.
• Assist in design and validation of firewall rules and access control lists.
• Troubleshoot application-layer firewall conflicts.

Skills

ASP.NET (C#)

Network security principles

Firewall rules

Access control

Tools

Palo Alto Networks

Firewall management tools

Job description

1 day ago Be among the first 25 applicants

Get AI-powered advice on this job and more exclusive features.

Direct message the job poster from N Consulting Global

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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Contract

Job function

• Job function

  Information Technology

• Industries

  IT Services and IT Consulting

Referrals increase your chances of interviewing at N Consulting Global by 2x

Get notified about new Frontend Developer jobs in London Area, United Kingdom.

London, England, United Kingdom 4 months ago

Software Engineer Intern/Co-op (Fall 2025)

London, England, United Kingdom 1 week ago

Greater London, England, United Kingdom 1 month ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 15 hours ago

London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 1 month ago

Python Backend Junior Software Engineer - Remote 4 days a week (Europe)

London, England, United Kingdom $30,000.00-$40,000.00 1 month ago

London, England, United Kingdom 1 week ago

Hounslow, England, United Kingdom 1 week ago

London, England, United Kingdom 1 month ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 6 days ago

Full-stack Software Dev - UK or Ireland (remote)

London, England, United Kingdom 1 day ago

London, England, United Kingdom 2 months ago

Greater London, England, United Kingdom 2 weeks ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 2 weeks ago

City Of London, England, United Kingdom 1 week ago

London, England, United Kingdom £50,000.00-£58,000.00 15 hours ago

London, England, United Kingdom 2 days ago

London, England, United Kingdom 1 day ago

London, England, United Kingdom 1 week ago

London, England, United Kingdom 1 month ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 3 weeks ago

London, England, United Kingdom 1 week ago

Greater London, England, United Kingdom 1 week ago

London, England, United Kingdom 3 months ago

City Of Westminster, England, United Kingdom 3 days ago

London, England, United Kingdom 2 days ago

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.