> Markdown version of [/jobs/ext/526005-sr-engineer-core-network](https://www.wearedevelopers.com/jobs/ext/526005-sr-engineer-core-network). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Engineer - Core Network - **Company:** LUMOS - **Location:** High Point, NC, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Complex Networks, Computer Networks, Internet Protocol, IPv6, IP Routing, Internet Service Provider, Network Security, Network Troubleshooting, PostgreSQL, MySQL, Network Architecture, Routing, Network Service, Virtualization Technology, Computer Network Operations, Reliability of Systems, Information Technology, Open Network Automation Platform, Cisco - **Published:** June 14, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=930a4ca6dde1e7cf ## About the Role Do you have experience in Virtualization?, * CCNP (Cisco Certified Network Professional) certification or equivalent hands-on experience supporting enterprise or service provider networks. * Strong expertise in IP routing, carrier-grade networking, and ISP network operations. * Experience designing, implementing, and supporting IPv6 network environments. * Experience with virtualization technologies and virtualized network infrastructure. * Strong working knowledge of Linux operating systems and administration. * Experience working with MySQL and PostgreSQL database structures and environments. * Deep understanding of routing protocols, network architecture, security principles, and network performance optimization. * Strong written and verbal communication skills with the ability to explain technical concepts to both technical and non-technical audiences. Other Experience & Requirements * 7+ years of experience in network engineering, core network operations, or related telecommunications engineering roles. * Bachelor's degree in Engineering, Computer Science, Information Technology, or a related field preferred; equivalent experience will be considered. * Experience supporting Internet Service Provider (ISP) or telecommunications networks strongly preferred. * Experience with Nokia networking platforms and configurations preferred. * Experience working with ARIN and internet resource management preferred. * Demonstrated success designing and supporting scalable network infrastructure in high-growth environments. Physical Requirements * Frequently operates a computer, keyboard, and other standard office equipment. * Near-constant use of sight, speech, hearing, comprehension, and reasoning. * Primarily remote work with occasional travel to a Lumos office or offsite meetings as needed. * Must be able to sit or remain in a stationary position for extended periods., Applicants must be at least eighteen (18) years of age at the time of application. ## Description Lumos Fiber is seeking a Sr. Engineer, Core Network to help design, build, and optimize the core network infrastructure that powers our rapidly expanding fiber footprint. In this role, you will be responsible for enhancing the reliability, scalability, and security of our IP routing environment while evaluating and implementing new technologies that support network growth and performance. This is an exciting opportunity for a network engineering professional who enjoys solving complex technical challenges and influencing the future of a modern service provider network. The ideal candidate brings deep expertise in IP networking, a passion for continuous improvement, and thrives in a fast-paced, high-growth environment where innovation and collaboration are highly valued., Network Architecture & Engineering * Design, implement, and support core IP routing infrastructure and related network services. * Evaluate, lab test, and validate new technologies, platforms, and service offerings to support network growth and performance objectives. * Design and implement network security enhancements and infrastructure hardening initiatives. * Develop technical requirements and engineering standards for commercial products and network services. * Create and maintain best practices, design standards, and documentation for current and future network architectures. * Identify opportunities to improve network reliability, scalability, and operational efficiency. Network Operations & Technical Leadership * Provide Tier IV support for complex network and customer-impacting issues, serving as a technical escalation point across the organization. * Partner with Network Operations, Field Operations, Product, Sales Engineering, and Customer Support teams to troubleshoot and resolve service issues. * Analyze recurring network issues and develop long-term solutions that improve network stability and customer experience. * Research, test, and implement operating system upgrades, patches, and infrastructure improvements. * Support strategic initiatives related to IPv6 deployment, routing optimization, network automation, and service innovation. * Participate in industry events, vendor demonstrations, and technical training to remain current on emerging technologies and industry trends. ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [IoT: The road to sustainability](https://www.wearedevelopers.com/videos/557-iot-the-road-to-sustainability) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Demystifying application networking in the cloud](https://www.wearedevelopers.com/videos/675-demystifying-application-networking-in-the-cloud) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)