Network Engineer

About The Company Lumen is a leading provider of advanced network solutions, dedicated to transforming how businesses connect, secure, and scale in an increasingly AI-driven world. As the trusted network for AI, Lumen leverages innovative technology and a robust infrastructure to enable organizations to move faster, unlock new opportunities, and stay ahead in a competitive landscape. The company's commitment to excellence, trust, and transparency fosters a dynamic environment where teamwork and collaboration are prioritized. With a focus on building a future-proof network, Lumen empowers its clients and employees alike to achieve their full potential through cutting-edge solutions and a culture of continuous improvement. About The Role We are seeking a highly skilled and experienced Network Engineer with strong leadership capabilities to join our team. This hybrid role involves working closely with our customers to assess their current network infrastructure, develop a strategic target-state vision, and implement best practice recommendations. The ideal candidate will possess deep technical expertise in Juniper network platforms, including MX, QFX, and SRX series devices, and demonstrate the ability to troubleshoot complex network issues effectively. This position requires a proactive approach to network design, configuration, and maintenance, ensuring high levels of performance, security, and reliability. The role also involves interacting with vendors to drive resolutions, manage firmware and code upgrades, and incorporate new features. As a subject matter expert, the Network Engineer may lead technical projects and provide guidance to team members or clients. The position supports after-hours maintenance and outages, emphasizing the need for flexibility and responsiveness. Candidates must hold an active TS/SCI clearance with the ability to undergo a polygraph, and are expected to participate in on-site support weekly as part of the hybrid work model. Qualifications Active TS/SCI clearance with the ability to sit for a polygraph7+ years of experience working with Juniper platforms (MX, QFX, SRX series)Strong expertise in routing protocols such as BGP (including communities, route filtering, AS-path, MED), OSPF, IS-IS, and MPLS/LDPHands-on experience with security and tunneling technologies, including MACsec, IPsec, GRE, and firewall zoning and policiesProficiency in fiber optic interfaces at 10G, 40G, and 100G, with troubleshooting skills for transceivers and optical diagnosticsAdvanced knowledge of the JUNOS CLI and familiarity with network automation tools like Ansible and Junos PyEZExperience with network monitoring and management tools such as SNMP, syslog, NetFlow, and centralized logging systemsExcellent communication skills, both oral and written, with the ability to work independently and collaborativelyWillingness to support after-hours outages and maintenance activities Responsibilities Install, configure, and maintain Juniper network devices including MX, QFX, and SRX series platformsConfigure and support security services on SRX devices, including zone-based policies, firewall filters, IPsec/SSL VPNs, and MACsec encryptionImplement and troubleshoot advanced routing protocols such as BGP, OSPF, IS-IS, and MPLSSupport high-speed fiber optic interfaces, ensuring proper diagnostics and transceiver troubleshootingManage network performance, availability, and security by applying QoS, policy-based routing, and traffic shaping techniquesDesign and support VPN tunnels and secure transport links between data centers, cloud services, and remote sitesMaintain comprehensive network documentation, including configurations, IP address management, and topology diagramsCollaborate directly with customers to provide expert advice, implement configuration changes, and resolve network issuesAct as a technical leader or subject matter expert on complex network projects and initiatives Benefits Competitive salary package aligned with experience and skillsComprehensive health, life, and voluntary lifestyle benefitsOpportunities for professional development and certification supportFlexible work arrangements with a hybrid on-site/remote modelSupportive work environment fostering teamwork, trust, and transparencyAdditional perks aimed at enhancing physical, mental, emotional, and financial wellbeing Equal Opportunity Lumen is committed to providing equal employment opportunities to all individuals regardless of race, color, religion, gender, sexual orientation, gender identity, gender expression, age, national origin, veteran status, disability, genetic information, or any other legally protected status. We do not tolerate discrimination or harassment and strive to create an inclusive environment where everyone can thrive. Our hiring practices are designed to ensure fairness and equity, and we welcome applicants from diverse backgrounds to join our team.