Principal Network Engineer

Principal Network Engineer Employment Eligibility Statement: Due to specific project and client requirements, this position is open to U.S. Citizens and U.S. Lawful Permanent Residents (Green Card holders). Sponsorship is not available at this time. Danta Technologies evaluates all candidates in compliance with the Immigration and Nationality Act (INA) and EEOC guidelines. All hiring decisions are made without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, age, disability, veteran status, or any other protected characteristic. Location: Onsite Mode: Contract (6+ Months) Location (Complete Work Address with Zip code): 170 Data Dr, Waltham, MA 02451 55 Bearfoot Rd, Northborough, MA 01532 300 Erie Blvd West, Syracuse, NY 13202 2 Hanson Pl, Brooklyn, NY 11217 Comments - No set days required in office, will be ad-hoc for meetings etc. and then perhaps some travel to the DC locations. Most work will be done remotely. Role Purpose Principal Network Engineer within the Global Network Engineering team, responsible for delivering a major Internet Gateway Migration programme across the US and UK regions, owning the low-level design and implementation activities. Working closely with other Network engineers, Network Architects, Security Architects, Operations teams, and suppliers, you will design, build, test, migrate, and troubleshoot complex enterprise network services across Internet, WAN, SD-WAN, cloud, and security domains. This is a hands-on network engineering role. Key Responsibilities Design, build, test, and implement Internet Gateway migration solutions. Configure and troubleshoot complex routing environments including BGP, OSPF, MPLS, VRFs, route redistribution, and traffic engineering. Perform deep-dive troubleshooting across Internet edge, SD-WAN, WAN, LAN, cloud, security, and carrier connectivity domains. Develop and execute migration plans, implementation procedures, service cutovers, rollback strategies, and operational acceptance testing. Perform detailed dependency analysis across routing, security, DNS, DDI, remote access, cloud connectivity, and carrier services. Analyse technical dependencies and resolve migration blockers across network and security services. Create and review low-level designs, implementation plans, MOPs, and operational documentation. Work closely with Network Architects to translate target-state designs into deployable engineering solutions. Support and Lead on major implementation events, service transitions, and high-risk change activities. Drive engineering best practice, technical quality, and operational readiness. Required Skills & Experience CCIE (Cisco Certified Internetwork Expert) - Enterprise Infrastructure (mandatory) Expert-level BGP knowledge including Internet edge design, route policy, traffic engineering, route filtering, and multi-carrier connectivity. Extensive hands-on experience with Cisco enterprise routing and switching platforms. Proven experience designing and implementing enterprise Internet connectivity solutions. Strong SD-WAN engineering experience (Cisco Viptela). Strong understanding of OSPF, MPLS, VRFs, QoS, route redistribution, and high-availability network design. Experience delivering complex network migrations and transformation programmes. Experience integrating enterprise networks with Azure and hybrid-cloud environments. Advanced troubleshooting skills using packet captures, protocol analysis, routing diagnostics, and telemetry tools. Experience working directly with ISPs, carriers, and managed service providers. Experience producing implementation plans, migration runbooks, and low-level designs. Desirable Skills CCDE or equivalent design experience. Azure ExpressRoute and hybrid-cloud networking. Network automation using tools such as Python, Ansible, NetBrain. Experience within Utilities, Energy, Critical National Infrastructure, or highly regulated environments. Notes:- All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance. Benefits: Danta offers a compensation package to all W2 employees that are competitive in the industry. It consists of competitive pay, the option to elect healthcare insurance (Dental, Medical, Vision), Major holidays and Paid sick leave as per state law. The rate/ Salary range is dependent on numerous factors including Qualification, Experience and Location. Danta Technologies