Senior Systems Engineer (Mission Support ISR Comms)
SMX is seeking a Senior Systems Engineer / ISR Communications professional to support the design, implementation, operation, security, and troubleshooting of enterprise and mission-focused network infrastructure. The ideal candidate will have strong hands-on experience with Cisco routing, switching, firewall, and network services technologies; working knowledge of Juniper networking platforms such as Junos, Session Smart Router (SSR), SRX, and Mist; and the ability to maintain networks in accordance with DoD 8140 / legacy DoD 8570 cybersecurity workforce requirements, DISA STIGs, vulnerability management processes, and organizational security policies.
This role requires a senior-level engineer capable of independently resolving complex network issues, supporting secure architecture decisions, maintaining configuration standards, and coordinating with system administrators, cybersecurity teams, customers, vendors, military leadership, and other stakeholders.
This position requires a DoW TS/SCI clearance which requires US citizenship for work on DoW contracts.
Location: Manilla Philippines
Essential Duties & Responsibilities
- Design, configure, operate, and troubleshoot enterprise LAN/WAN networks—including routers, switches, firewalls, IPsec VPNs, wireless, and other network security appliances
- Support Cisco environments (VLANs, trunks, STP, routing protocols, NAT, ACLs, QoS, IPsec VPN, AAA, SNMP, NTP, and network segmentation) and Juniper platforms as needed (Junos, SRX, Session Smart Router, Mist, policy configuration, and troubleshooting)
- Monitor network availability, capacity, latency, and performance; identify root causes and implement corrective actions
- Develop and maintain network diagrams, IP address plans, configuration baselines, SOPs, configuration guides, and change documentation
- Implement secure network configurations in accordance with DISA STIGs, vulnerability findings, patching requirements, and RMF/ATO activities
- Manage network backup, recovery, lifecycle replacement, firmware/software upgrades, and scheduled maintenance
- Collaborate with cybersecurity teams to remediate findings (e.g., ACAS/Nessus), validate mitigations, and provide input for Plans of Action and Milestones
- Lead or support outage response, incident resolution, change planning, and after-action documentation
- Set up, operate, and support encryption/COMSEC and mission communications devices (e.g., KG-series, radio systems)
- Assist with the setup and administration of FMV and data-stream transport systems (Vidterra Compass, Kraken, Haivision Makito); prior expertise is not required, but the ability to configure and operate with guidance is expected
- Mentor junior engineers and provide technical guidance to operations staff
- Perform other mission-essential duties as assigned
Required Skills & Experience
- 7+ years of hands-on network engineering experience, ideally in enterprise, government, DoD, or mission-critical environments
- Extensive experience with Cisco routing, switching, firewall, and network services: configuration, troubleshooting, and lifecycle support
- Working knowledge of Juniper Junos routing/switching and related Juniper technologies
- Solid understanding of TCP/IP, subnetting, VLANs, routing protocols, VPNs, ACLs, NAT, DNS, DHCP, NTP, SNMP, syslog, and network monitoring
- Experience supporting secure network operations, vulnerability remediation, configuration hardening, and compliance documentation
- Ability to create and maintain technical documentation, diagrams, SOPs, and change records
- Skill in briefing military leadership on network architecture, operational status, risks, and remediation plans
- Strong troubleshooting, communication, customer support, and independent problem-solving abilities
- Compliance with DoD 8140 / legacy 8570 requirements, including Security+ CE (or higher, as required by contract)
Desired Skills & Experience
- Certifications such as SecurityX, CISSP, CCNP Security/Enterprise, JNCIA-Junos, JNCIS-ENT, JNCIP-ENT, or other relevant Cisco/Juniper/DoD certifications
- Experience with DoD, federal, tactical, overseas, or cleared contractor environments
- Familiarity with Cisco ASA/Firepower, ISE, DNA Center/Catalyst Center, SD-WAN, Nexus, wireless controllers, and Juniper enterprise platforms
- Knowledge of virtualization (Proxmox, VMware), cloud networking, zero trust, and network automation
- Experience supporting RMF packages, ATO renewals, PPSM documentation, inventories, and network architecture diagrams
- Ability to work independently in small-team, remote-site, or expeditionary settings
#CJPOST
The SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications. At SMX, one of our Core Values is to Invest in Our People so we offer a competitive mix of compensation, learning & development opportunities, and benefits. Some key components of our robust benefits include health insurance, paid leave, and retirement.
At SMX®, we are a team of technical and domain experts dedicated to enabling your mission. From priority national security initiatives for the DoD to highly assured and compliant solutions for healthcare, we understand that digital transformation is key to your future success.
We share your vision for the future and strive to accelerate your impact on the world. We bring both cutting edge technology and an expansive view of what’s possible to every engagement. Our delivery model and unique approaches harness our deep technical and domain knowledge, providing forward-looking insights and practical solutions to power secure mission acceleration.
SMX is an Equal Opportunity employer including disabilities and veterans.
Selected applicant may be subject to a background investigation and/or education verification.
SMX does not sponsor a new applicant for employment authorization or immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1 and O-1, or any EADs or other forms of work authorization that require immigration support from an employer).
As published by greenhouse
First Name, Last Name, Email, Phone, Resume/CV, Cover Letter
- Legal First Name
- Legal Last Name
- Full Middle Name
- Suffix optional
- Street Address
- City
- State choose one
- Postal Code
- Are you at least 18 years of age? choose one
- What level of security clearance do you currently hold? choose any
- Work Authorization choose one
- Will you at any time require any form of work authorization, visa, or other immigration sponsorship? choose one
- Salary Requirements
- Have you previously worked for SMX or a subsidiary? choose one
- Reference #1 (Please provide name, working relationship, and email address) written answer
- Reference #2 (Please provide name, working relationship, and email address) written answer
- WE ARE AN EQUAL OPPORTUNITY EMPLOYER. Applicants and employees are considered for positions and are evaluated without regard to mental or physical disability, race, color, creed, religion, sex, gender, national origin, ancestry, age, genetic information, military or veteran status, sexual orientation, gender identity or expression, marital status, familial status or any other legally protected status under applicable law or other similar factors that are not job-related. No question on the application is intended to secure information about these subjects. We encourage all qualified individuals to apply for employment. We also provide reasonable accommodation to qualified individuals with disabilities in accordance with the Americans With Disabilities Act and applicable state and local law. If you require assistance or a reasonable accommodation to complete the application or any aspect of the application process, please contact the Talent Acquisition team at [email protected]. All applicants must properly complete this employment application; failure to do so may result in denial of employment. Rhode Island Applicants: PURSUANT TO THE WORKERS’ COMPENSATION LAW SECTION 28-29-6, THE ORGANIZATION INFORMS YOU THAT IT IS SUBJECT TO THE WORKERS’ COMPENSATION LAWS. IF YOU PROVIDE FALSE INFORMATION ABOUT YOUR ABILITY TO PERFORM THE ESSENTIAL FUNCTIONS OF THE JOB WITH OR WITHOUT ACCOMMODATION, YOU MAY BE BARRED FROM FILING A CLAIM UNDER THE PROVISIONS OF THE WORKERS’ COMPENSATION ACT OF THE STATE OF RHODE ISLAND. choose one
- I have read and agree to the SMX Data Privacy Policy. choose one
- I agree to the Conditions of Application and Employment statement below. choose one
- I hereby authorize this electronic signature submittal to serve as my legal signature. choose one
- Enter Full Legal Name
- Date (mm/dd/yyyy)