Apex Systems
Senior Network Engineer
Apex Systems has an immediate need for a Senior Network Engineer for a large Government client of ours! We are looking for a strong leadership/hands-on Network Engineer to work with our customers capable of assessing the current state infrastructure, configuration and producing a target-state vision and strategy with best practice recommendations. Applies advanced engineering and network principles, theories, concepts, technologies to solve unusually complex problems and issues. Interacts and drives vendor requirements, resolution of bug fixes, code upgrades, and vendor development as necessary. Resolves difficult production/interoperability problems by working with cross functional teams and applying advanced engineering and network principles, theories and concepts. Regarded as a subject matter expert and may act as a technical project leader or provide leadership for the team and/or customer. Self-motivated with problem solving capabilities, sense of urgency and accountability. The position is hybrid and requires weekly on-site support. The main responsibilities include: Install, configure, and maintain Juniper network devices, including MX, QFX, and the latest SRX Series security platforms. Configure and support security services on SRX devices, including zone-based policies, firewall filters, IPsec/SSL VPNs, tunneled connections, and MACsec encryption. Implement and troubleshoot advanced routing protocols, including BGP (with communities, route filtering, AS-path, MED), OSPF, IS-IS, and MPLS/LDP. Support and maintain high-speed fiber optic interfaces, including 10G, 40G, and 100G ports, with experience in LACP, optical diagnostics, and transceiver troubleshooting. Manage network performance, availability, and security by applying CoS/QoS, policy-based routing, and traffic shaping techniques. Design and support VPN tunnels and secure transport links between data centers, cloud services, and remote sites. Maintain detailed and accurate network documentation, including configurations, IP address management, and topology diagrams. Works directly with the customer to advise on requests and make necessary configuration changes. What we look for in a candidate: Active TS/SCI with ability to sit for a Poly. Candidates will be subject to a background investigation. 7+ years of experience with Juniper platforms (MX, QFX, and new-generation SRX devices). Strong expertise in routing protocols such as BGP, OSPF, IS-IS, and MPLS, including real-world experience with complex policy configurations. Experience with security and tunneling technologies, including MACsec, IPsec, GRE, and firewall zoning and policies. Proficiency working with fiber interfaces at 10G, 40G, and 100G, including troubleshooting transceivers, optical power levels, and port configurations. Advanced knowledge of the JUNOS CLI, with familiarity in network automation tools such as Ansible, Junos PyEZ, or other scripting platforms. Experience working with network monitoring and management tools, including SNMP, syslog, NetFlow, and centralized logging systems. Ability to work well with others to achieve common goals and to foster a cooperative climate, as well as to work independently in the field with little supervision. Ability to support after-hours outages and maintenance actions. Experience working independently with little supervision. Excellent oral and written communication skills. Additional preferred qualifications: Juniper Networks Certifications: JNCIS-SEC, or higher. EEO Employer Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at employeeservices@apexsystems.com or 844-463-6178.
Apex Systems has an immediate need for a Senior Network Engineer for a large Government client of ours! We are looking for a strong leadership/hands-on Network Engineer to work with our customers capable of assessing the current state infrastructure, configuration and producing a target-state vision and strategy with best practice recommendations. Applies advanced engineering and network principles, theories, concepts, technologies to solve unusually complex problems and issues. Interacts and drives vendor requirements, resolution of bug fixes, code upgrades, and vendor development as necessary. Resolves difficult production/interoperability problems by working with cross functional teams and applying advanced engineering and network principles, theories and concepts. Regarded as a subject matter expert and may act as a technical project leader or provide leadership for the team and/or customer. Self-motivated with problem solving capabilities, sense of urgency and accountability. The position is hybrid and requires weekly on-site support. The main responsibilities include: Install, configure, and maintain Juniper network devices, including MX, QFX, and the latest SRX Series security platforms. Configure and support security services on SRX devices, including zone-based policies, firewall filters, IPsec/SSL VPNs, tunneled connections, and MACsec encryption. Implement and troubleshoot advanced routing protocols, including BGP (with communities, route filtering, AS-path, MED), OSPF, IS-IS, and MPLS/LDP. Support and maintain high-speed fiber optic interfaces, including 10G, 40G, and 100G ports, with experience in LACP, optical diagnostics, and transceiver troubleshooting. Manage network performance, availability, and security by applying CoS/QoS, policy-based routing, and traffic shaping techniques. Design and support VPN tunnels and secure transport links between data centers, cloud services, and remote sites. Maintain detailed and accurate network documentation, including configurations, IP address management, and topology diagrams. Works directly with the customer to advise on requests and make necessary configuration changes. What we look for in a candidate: Active TS/SCI with ability to sit for a Poly. Candidates will be subject to a background investigation. 7+ years of experience with Juniper platforms (MX, QFX, and new-generation SRX devices). Strong expertise in routing protocols such as BGP, OSPF, IS-IS, and MPLS, including real-world experience with complex policy configurations. Experience with security and tunneling technologies, including MACsec, IPsec, GRE, and firewall zoning and policies. Proficiency working with fiber interfaces at 10G, 40G, and 100G, including troubleshooting transceivers, optical power levels, and port configurations. Advanced knowledge of the JUNOS CLI, with familiarity in network automation tools such as Ansible, Junos PyEZ, or other scripting platforms. Experience working with network monitoring and management tools, including SNMP, syslog, NetFlow, and centralized logging systems. Ability to work well with others to achieve common goals and to foster a cooperative climate, as well as to work independently in the field with little supervision. Ability to support after-hours outages and maintenance actions. Experience working independently with little supervision. Excellent oral and written communication skills. Additional preferred qualifications: Juniper Networks Certifications: JNCIS-SEC, or higher. EEO Employer Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at employeeservices@apexsystems.com or 844-463-6178.