Senior Infrastructure Engineer - Military veterans preferred

ManTech (


  full-time   employee

United States

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry-leading Organization, where our employees come first.  At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented Senior Infrastructure Engineer to join our team on a remote basis. 

Essential Responsibilities 

  • Support multiple environments, teams, and stakeholders

  • Work with other senior members in the Mission & Enterprise IT Technical Focus Area housed within the Innovation & Capabilities Office (ICO) to develop innovative enterprise solutions, provide subject matter expertise advisory and support. 

  • Provide design, architecture and implementation of new technologies, optimize current hosting enclaves and integrate emerging technologies in order to develop differentiated capabilities. Excellent written and verbal communication skills and the ability to work autonomously yet collaboratively in a team environment. 

Basic Qualifications

  • 10+ years of professional technology experience

  • Bachelors of Science (BS) Degree in Networking Technologies, Electrical Engineering, Computer Engineering, Software Engineering, Computer Science, Mathematics, Physics, or a STEM related field.

Technical Qualifications

  • Network Technologies: IPv4/IPv6, BGP & MP-BGP, OSPF, EIGRP, RIP, GRE, HSRP, VRRP, GLBP, VLANs, 802.1q Trunking, VTP, Spanning-tree 802.1D/W/s, Port Channel/Ether Channel, ECMP, VPC, VDC, Metro Ethernet, PPP, HDLC, DSL, VPLS, MPLS, LDP, VRF/EVN, Ethernet, SNMP, DNS, NTP, EEM, TCL, MulticastQoS 

  • Virtual Technologies:  VMware ESXi & vSphere, DRS, Storage Multi-Pathing Policy, P2V, V2V, V2P migrations, vm backups, vMA, PowerShell scripting, NSX – Manager, Controller, Edge, VXLAN, VTEP, VCSA

  • Security Technologies: Firewalls, IPSec VPN, Cisco AnyConnect VPN, SSL VPN, WCCP, AAA (TACACS+ & RADIUS), IKEv1/2, ESP/AH, TLS, DTLS, Palo Alto Global Protect, Certificate Based IKE, Suite-B and CNSA cipher and mac hashing algorithms

  • Hardware: Cisco ISR 1800 - 3900, 7600, ASR1000, & CSR1000v routers, Cisco 2960, 3560, 3750, 4500, and 6500, 9300 Catalyst switches, Cisco 1000v, 2000 FEX, 5000, 7000 Nexus Data Center switches, Meraki MS

  • Firewalls: Cisco ASA 5500 series, Cisco ISE, Secure ACS 5.X, Prime; Palo Alto 220, 850, 3XXX, 5XXX, PA-VM firewalls, Panorama Management

  • Loadbalancers: Citrix ADC Netscaler, F5, Cisco 1100, 1200 series Wireless Access Points, and 5508 Wireless LAN Controllers

  • Operating Systems: Cisco IOS 12.x, 15.x; IOS-XE 3.x, 16.x; NXOS 4.x-7.x; PAN-OS 7.1-10.0, Linux, BSD

  • Software: Wireshark (Ethereal), Sniffer Pro, Solarwinds, Kiwi, MRTG, Nmap, Net-SNMP, Visio

  • Lab and Modeling Tools: GNS3, Packet Tracer, Netbrain, UNL, EVE-NG, Cisco VIRL/CML, Cypherpath

Preferred Qualifications

  • Networking, Infrastructure and Cloud certifications preferred

Security Clearance Requirements

  • Able to obtain and maintain a Top Secret clearance

Physical Requirements

  • Must be able to be in a stationary position more than 50% of the time

  • Must be able to communicate, converse, and exchange information with peers and senior personnel

  • Constantly operates a computer and other office productivity machinery, such as a computer

  • The person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations

  • The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

The projected compensation range for this position is $146,300-$243,100. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, ManTech invests in it’s employees beyond just compensation. ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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