Senior Network Engineer

Company: Harmonia Holdings Group
Location: Washington
Posted on: April 2, 2026

Job Description:

Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. Title: Senior Network Engineer Location: Washington, DC (Onsite) Terms: Full-time Clearance: Active TS/SCI Travel: Position Description Harmonia is seeking an experienced Senior Network Engineer with expertise in Palo Alto Networks and Cisco technologies to support the Department of State in Washington, DC. The ideal candidate will bring deep technical knowledge in firewall management, routing protocols, and enterprise networking while providing leadership in technology modernization, network security, and systems integration. This position requires an active TS/SCI clearance and U.S. citizenship. Responsibilities: Design, deploy, configure, and maintain enterprise network systems, including Palo Alto Networks and Cisco firewalls, routers, and switches. Utilize the Panorama Firewall Management platform for centralized configuration, monitoring, and troubleshooting. Provide Tier-III firewall and network support, including advanced troubleshooting of complex security and connectivity issues. Conduct technical analysis in network planning, engineering, design, and performance optimization. Integrate and secure enterprise applications across interconnected systems. Monitor, document, and maintain network performance, configurations, SOPs, and technical documentation. Ensure compliance with Department of State security policies, DHS standards, and industry best practices. Install, configure, and maintain LAN/WAN infrastructure, servers, SANs, and related network devices. Lead efforts in requirements gathering, test planning, and certification/accreditation activities. Provide escalation support, training, and mentorship to junior network engineers. Conduct research and development for emerging technologies to enhance the network security posture. Requirements Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent work experience). Active TS/SCI security clearance. CCNA or CCNP is required. 8 years of enterprise IT systems and network administration experience. Strong expertise with Cisco networking technologies (switches, routers, firewalls). Proficiency in routing protocols (OSPF, static routes, VLANs, ACLs, QoS, multicast). Experience with Windows OS, Active Directory, Linux, VMware virtualization, and SAN/RAID storage solutions. Proven experience developing and implementing network security solutions. Excellent troubleshooting, communication, and leadership skills. Desired Palo Alto Networks certification (PCNSE) is highly desired. Hands-on experience with Panorama Firewall Management and Palo Alto Networks products. Prior experience supporting the Department of State or other federal agencies. Strong knowledge of federal compliance standards, C&A activities, and security frameworks. Demonstrated ability to lead modernization projects and mentor junior engineers. CJ LI DICE ___________________________________________________________________________________________________________ Here at Harmonia we are pleased to have been repeatedly recognized for our outstanding work culture, the innovative work we do, and the employees on our team who make a difference each day. Some of these recognitions include: Recognized as a Top 20 "Best Place to Work in Virginia" Recipient of Department of Labor's HireVets Gold Medallion Great Place to Work Certification for five years running A Virginia Chamber of Commerce Fantastic 50 company A Northern Virginia Technology Council Tech 100 company Inc. 5000 list of fastest growing companies for eleven years Two-time SBA SBIR Tibbett's Award winner Virginia Values Veterans (V3) Certification We recognize that every bit of our success is the result of our teams of hard-working, motivated, and innovative professionals who are proud to call themselves part of the Harmonia family! In addition to competitive compensation, a family-focused culture, and a dynamic, productive work environment, we offer all full-time employees a variety of benefits including, but not limited to Traditional and HSA- eligible medical insurance plans 100% employer-paid dental and vision insurance options 100% employer-sponsored STD, LTD, and life insurance 5% 401(k) company matching Flexible-schedules and teleworking options Paid holidays and PTO Accrual Plans Paid Parental Leave Professional development and career growth opportunities Team and company-wide events, recognition, and appreciation and so much more! Check out our LinkedIn , Facebook , and Instagram to find out a little more about who we are and if we are the right next step for your career! Harmonia is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race, color, religion, national origin, age, gender, gender identity, sexual orientation, disability, or genetics. Harmonia does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans. To perform the above job successfully, an individual must possess the knowledge, skills, and abilities listed; meet the education and work experience required; and must be able to perform each essential duty and responsibility satisfactorily. Other duties in addition to those listed may be assigned as necessary to meet business needs. Reasonable accommodation will be made to enable an applicant with a disability to successfully apply for and/or perform the essential duties of the job. If you are in need of an accommodation, please contact HR@harmonia.com .

Keywords: Harmonia Holdings Group, Wilmington , Senior Network Engineer, IT / Software / Systems , Washington, Delaware