Network Engineer

We are looking for a Network Engineer to support enterprise voice and network environments in Iselin, New Jersey. This Long-term Contract opportunity is ideal for a communications and infrastructure specialist who wants to deepen expertise across Cisco-based networking, VoIP platforms, and collaboration technologies. The role will focus on maintaining reliable connectivity, strengthening network security, and supporting critical telecommunications services across the organization., Administer and support enterprise network infrastructure, including Cisco routing and switching environments, to maintain stable and secure operations. Configure, monitor, and troubleshoot VoIP and unified communications systems to ensure consistent voice service and collaboration performance. Manage firewall technologies such as Palo Alto and Cisco ASA by applying security policies, reviewing traffic behavior, and resolving connectivity issues. Support routing architecture by implementing and maintaining Border Gateway Protocol (BGP) configurations across complex network environments. Investigate network incidents, perform root cause analysis, and restore service quickly while documenting findings and corrective actions. Partner with internal technical teams to plan network improvements, optimize system performance, and support infrastructure-related projects. Maintain technical documentation for network designs, configuration standards, operational procedures, and troubleshooting records. Evaluate network health through ongoing monitoring and recommend updates that improve reliability, scalability, and security.

Hands-on experience with Cisco routers and broader Cisco networking technologies in an enterprise setting. Working knowledge of Palo Alto Firewall administration, including rule management and traffic analysis. Experience supporting Cisco ASA firewalls and resolving security or access-related issues. Practical understanding of Border Gateway Protocol (BGP) and its use in routed network environments. Background in network engineering with exposure to telecommunications, VoIP, or unified communications platforms. Ability to diagnose complex network problems and implement effective technical solutions. Strong communication skills with the ability to document configurations and collaborate across technical teams., All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.