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# Cyber Security Engineer - RADIUS, TACACS+

- **Company:** Xfinity
- **Location:** Mount Laurel Township, NJ, United States (Remote available)
- **Experience:** Expert
- **Salary:** $104,959.0 - $157,438.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, User Authentication, Microsoft Azure, Cloud Computing Security, CompTIA Security+, Cyber Security, Linux, Perl (Programming Language), Identity and Access Management, Networking Hardware, Information Systems Security Architecture Professional, Python (Programming Language), Key Management, Network Security, Lightweight Directory Access Protocols (LDAP), Network Architecture, Node.Js, Systems Development Life Cycle, Queueing Systems, Azure Active Directory, Zero Trust Network Access, Software Engineering, Systems Integration, Terminal Access Controller Access-Control System (TACACS), Authentication Authorization Accounting (Server Program), Transport Layer Security, ReactJS, HybridCloud, Information Technology, Virtual Agents, TACACS+ Protocol, Restful APIs, Devsecops
- **Published:** August 22, 2026
- **Apply:** https://www.careerjet.com/job/us8066b60b962213fce42b0e917ed97bf6/eaa

## About the Role

Bachelor's degree in Computer Science, Cybersecurity, Engineering, or related field.
5+ years of experience in cybersecurity engineering, IAM, network security, or a related discipline.
Experience implementing AAA and IAM solutions in hybrid cloud environments.
Strong knowledge of RADIUS, TACACS+, LDAP, TLS, EAP-TLS, mTLS, Azure Entra ID, and secrets management.
Experience supporting Linux/Unix systems and network infrastructure.
Proficiency with Python, Node.js, REST APIs, and automation frameworks.
Strong analytical, problem-solving, and communication skills.
Preferred Qualifications
Experience with cloud security, Zero Trust architectures, and DevSecOps practices.
Experience developing or integrating AI/Agentic AI solutions.
Experience with React-based application development.
Industry certifications such as CISSP, Security+, GIAC, or Azure Security Engineer.
Disclaimer: This information has been designed to indicate the general nature and level of work performed by employees in this role. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications.
Skills Authentication, Identity Access Management (IAM), Python (Programming Language), RADIUS AAA, Requirements Analysis, TACACS, While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience

## Description

What You'll Do:
Cybersecurity & IAM Engineering
Design and implement secure architecture and AAA solutions for network devices and Linux/Unix environments.
Develop and integrate authentication and authorization technologies including RADIUS, TACACS+, LDAP, TLS, EAP-TLS, and mTLS.
Support identity services leveraging Azure Entra ID, Secrets Management, and certificate-based authentication.
Conduct security assessments, audits, and risk analyses to identify vulnerabilities and drive remediation efforts.
Automation & Agentic AI
Automate manual IAM and access management workflows to improve efficiency and reduce operational risk.
Build and integrate Agentic AI solutions to automate authentication and authorization processes, improve decision-making, and enhance observability and auditability.
Development & Integration
Develop scalable full-stack applications and security automation solutions using Python, Perl, Node.js, and React.
Design and implement integrations using REST APIs, message queues, and enterprise identity platforms.
SDLC & Operations
Participate in all phases of the software development lifecycle, including requirements gathering, architecture, design, testing, deployment, and production support.
Investigate and respond to security incidents, perform root cause analysis, and implement corrective actions.
Document technical solutions, processes, and recommendations for leadership and stakeholders.
Leadership
Provide technical guidance to project teams and junior engineers.
Collaborate across engineering, infrastructure, and cybersecurity organizations to deliver secure, scalable solutions.
Maintain awareness of emerging threats, technologies, and industry best practices.
What You'll Need, The Cyber Security Engineer supports the development, implementation, and maintenance of the cybersecurity program. Working under the direction of the Cyber Security Project Manage…

 + 10 hours ago


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