SME Network Engineer

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.

SME Network Engineer

Location : Lorton VA (22079)

Citizenship : U.S. Citizen (required for access to DHS IT systems)

Clearance : Must be able to obtain and maintain DHS / ICE Fitness Determination (Public Trust) including favorable preliminary Fitness and full NBIS eAPP investigation (SF-85P OF-306 SSA-89 fingerprints PREA questionnaire if required)

Schedule : Full-time; 8-hour workdays with on-call support as needed.

Hybrid Work : Lorton VA roles may telework up to 2 days per week; 3 days onsite required (subject to mission needs)

Travel : Occasional CONUS travel; local travel within 50 miles is not reimbursable

Role Overview

Harmonia Holdings Group is seeking an experienced SME Network Engineer to support DHS ICE Homeland Security Investigations (HSI) Title III and Linguists Unit (T3LU) under the CALEA program.

This role provides hands-on leadership across all network engineering functions including architecture routing switching firewall engineering VPN and PKI integration segmentation design troubleshooting and IA / accreditation-grade documentation. The SME ensures the integrity resilience and performance of mission-critical CALEA networks and collaborates closely with Systems Virtualization Storage and Field Engineering teams to ensure end-to-end operational success.

This position supports DHSs mission while contributing to Harmonias overarching goals : delivering premier technology services driving mission-focused innovation sustaining organizational excellence and being an employer of choice for skilled professionals.

Responsibilities

Network Architecture & Design

• Design document and maintain CALEA network architecture including :
• Layer 2 / Layer 3 topology
• IP address schema and subnetting
• VLAN / VRF segmentation
• Routing design (OSPF BGP EIGRP static routing)
• Firewall zoning NAT policies and security segmentation
• VPN tunnels encrypted transport paths and PKI integrations
• COOP / DR network routing and failover paths
• Produce and maintain authoritative network diagrams data flows trust boundaries and configuration baselines.
• Evaluate recommend and implement enhancements to improve security availability and performance.

Network Operations & Troubleshooting

Firewall Security & Accreditation Support

Interoperability & Cross-Domain Integration

COOP / DR & Lab Engineering

Documentation & Mission Coordination

Required Qualifications

Technical Proficiency

Preferred Certifications

Additional certifications may be required after hire and must be obtained within designated timelines.

Professional Competencies

Preferred Experience

Soft Skills

Physical Demands / Work Environment

#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 :

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

Check out ourLinkedIn Facebook andInstagramto 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 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 .

Key Skills

Load Balancing,Routing Protocols,Network Administration,Network Engineering,BGP,LAN,Computer Networking,IPsec,OSPF,Cisco ASA,Juniper,MPLS

Employment Type : Full Time

Experience : years

Vacancy : 1