Network Engineer, Principal Specialist, Onsite, Marlborough, MA
Listed on 2026-06-13
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Engineering
Systems Engineer, Cybersecurity
Network Engineer, Principal Specialist (P3)
Location:
Marlborough, MA. Role type:
Onsite.
Active U.S. DoD Secret clearance required prior to start. U.S. citizenship required. Clearance sponsorship provided; interim clearance required before day one.
What You Will Do- Maintains smooth operation of voice and data networks. Plans, evaluates, coordinates, and performs installation and/or reconfiguration of hardware and software elements of data and/or voice communication network.
- Develop technical expertise in all areas of voice and data networks hardware and software interconnection and interfacing, such as switches, routers, firewalls, authentication servers, encryptors etc.
- Maintains network management software platforms.
- Propose solutions to management to ensure all communications requirements based on future needs and current usage, configuring such solutions to optimize cost savings aligning with future requirements factoring in redundancy and required network uptime.
- Prepares or ensures that appropriate network documentation exists, including operational instructions, technical diagrams, and other documentation. Where no documentation exists, new documentation will be created.
- Provide regular monitoring and network analysis regarding short- and long-range planning for in-house systems.
- Assist with coordination of third-party maintenance for network equipment or with vendors for third-party support.
- Network designs that include selection of hardware and software packages, hierarchical architecture, and geographical limitations.
- Work with program engineers to resolve networking problems in tactical environments.
- Assist in the overall performance and capability of technical team through mentoring, training, and knowledge sharing.
- Willingness and availability to work outside normal business hours (evenings and weekends) as needed.
- Must be able to work with general supervision and follow established procedures.
- Typically requires a university degree or equivalent experience and minimum 5 years prior relevant experience, or an advanced degree in a related field and minimum 3 years’ experience.
- Experience with configuration and troubleshooting of Cisco routers, switches, firewalls, and intrusion detection systems, including software upgrades.
- Experience with current cabling and fiber standards.
- Active and transferable U.S. government issued U.S. DoD Secret security clearance required prior to start. U.S. citizenship required, as only U.S. citizens are eligible for a security clearance.
- Willingness and availability to travel domestically as needed.
- Experience with access control list, security posture, and vendor best practices.
- Experience with Visio diagramming and design capabilities.
- Knowledge of configuration and troubleshooting of encryption devices.
- Effective customer service skills, including oral and written communications.
- Experience with platforms such as IP telephony, NTP servers, Gem One, and Solar Winds.
- Certifications in Security+ within 6 months and Cisco Certified Network Associate (CCNA) is highly desired within a year.
- Ability to work under time constraints.
- Experience with classified computing, STIG compliance, and network refreshes.
- Eligible for benefits including medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, parental leave, paid time off, and holidays, subject to business unit and collective bargaining agreements.
- Eligible for annual short‑term and/or long‑term incentive compensation programs, based on level and collective bargaining agreement.
Salary range: $86,800 – $165,200 USD.
RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
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