Systems Engineer

Thinktekllc; Alexandria (VA); On-site; USD 100,000 - 115,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

PTO & paid leave

Job summary

ThinkTek LLC seeks a Systems Engineer (Secret Cleared) to support a Department of War client in the National Capital Region. You will integrate and test secure wireless and network infrastructure within a classified environment, collaborating with government stakeholders, vendors, and senior engineers to move capabilities from design to deployment.

The role emphasizes foundational networking and security skills, with opportunities to advance through CSfC processes, RMF/ATO artifacts, and

Qualifications

• Active Secret security clearance.
• DoD 8140 IAT Level II baseline certification or ability to obtain within 90 days.
• Approximately 2–4 years of systems, network engineering, or IT infrastructure experience in DoD or Federal environments.
• Working knowledge of network fundamentals and DoD hardening standards such as DISA STIGs.
• Exposure to DoD security accreditation processes such as RMF or ATO.
• Ability to produce clear technical documentation.

Responsibilities

• Configure, integrate, and test network and security infrastructure in a classified environment.
• Coordinate deployment activities and change management processes as part of capability integration.
• Support NSA CSfC registration and engagement with the NSA CSfC PMO.
• Develop RMF artifacts to achieve and maintain Authority to Operate.
• Support cybersecurity compliance, STIG application, vulnerability remediation, and configuration hardening.
• Coordinate across vendor, engineering, and accreditation teams.
• Produce technical documentation, network diagrams, and test plans.

Skills

Secret clearance

IAT Level II

Networking basics

Technical documentation

DoD hardening (DISA STIGs)

Tools

Aruba wireless

CSfC program

Job description

Systems Engineer (Secret Cleared)

Who We Are

ThinkTek LLC is a fast-growing Certified SBA 8(a) and Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in management and technology consulting for Federal Government modernization. We provide tailored solutions in Program & Project Management, Strategic Planning, and IT Operations.

Position Description

ThinkTek is seeking a Systems Engineer to support a Department of War client in the National Capital Region. This role supports the deployment of an emerging secure wireless capability, spanning hardware and software integration into a classified network environment. Work covers network integration and cybersecurity accreditation, alongside senior engineers, the technology vendor, and Government stakeholders, as the capability moves from design through deployment. The position suits an engineer early in their career who has foundational networking and security skills and wants to build depth quickly.

Responsibilities

• Perform hands-on configuration, integration, and testing of network and security infrastructure within a classified environment
• Support integration of the capability into the existing network, coordinating deployment activities through established change management processes
• Contribute to the NSA Commercial Solutions for Classified (CSfC) registration package and support engagement with the NSA CSfC Program Management Office
• Support development of Risk Management Framework artifacts required to achieve and maintain an Authority to Operate
• Support cybersecurity compliance, including STIG application, vulnerability remediation, and configuration hardening
• Support coordination across vendor, engineering, and accreditation teams
• Produce technical documentation, network diagrams, integration and test plans, and as-built records

Required Qualifications

• Active Secret security clearance
• DoD 8140 IAT Level II baseline certification, such as Security+ CE, or the ability to obtain within 90 days of hire
• Approximately 2 to 4 years of systems, network engineering, or IT infrastructure experience in DoD or Federal environments, including routing, switching, and secure network integration
• Working knowledge of network fundamentals and DoD hardening standards such as DISA STIGs
• Exposure to DoD security accreditation processes such as RMF or ATO
• Ability to produce clear technical documentation

Desired Qualifications

• Current SCI access eligibility or active TS/SCI
• Familiarity with the NSA CSfC program, its Capability Packages, and the registration process
• Familiarity with enterprise wireless infrastructure, such as Aruba or comparable access points and controllers
• Experience with site surveys and/or wireless troubleshooting
• Vendor certification such as Cisco CCNA
• Higher-level DoD 8140 certification, such as CCNP Security or CASP+
• Experience integrating new or emerging technologies into DoD networks
• Experience working in secure or classified facilities
• Briefing technical content to Government stakeholders

Pay Range

The anticipated annual salary range for this position is $100,030 – $115,020. This range is a good-faith estimate and not a guarantee of compensation. Final compensation will be based on factors including experience, education, skills, geographic location, internal equity, market data, and applicable contract requirements, and may fall outside the posted range.

ThinkTek LLC is proud to be an Equal Opportunity Employer (EOE), making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. ThinkTek offers medical, dental, and vision insurance to all full-time employees; PTO and a variety of other paid leave options are also available. You can read more about ThinkTek benefits at https://www.thinktekllc.com/careers/.