Everforth ECS is seeking a Subject Matter Expert III to work in our Arlington, Virginia office.
Please Note: This position is contingent upon contract award.
Salary Range: $180,000 - $210,000
Position OverviewEverforth ECS is seeking a Subject Matter Expert III with recognized expertise in communications, engineering, or physics. You will advise DARPA MXO on research that pushes beyond conventional electronic approaches, combining new physics, materials, components, and architectures to create more capable and resilient ways to sense, compute, communicate, and generate mission effects.
You will join an integrated scientific, engineering, and program support team that works alongside DARPA program managers from early concept development through program execution, testing, transition, and closeout.
About DARPA MXODARPA's Multi X Office applies the physical sciences across scales and disciplines to create mission-relevant capabilities. Its work extends from materials at the atomic, molecular, and cellular scales to components, tools, processes, systems, and architectures that can reshape future military operations and strengthen the U.S. technology base.
- Materials and components beyond traditional CMOS foundations, with an emphasis on resilient, secure, and attack-resistant systems
- New tools, processes, manufacturing approaches, and domestic supply chains for critical technologies
- New modalities for sensing, orienting, computing, communicating, and producing mission effects
- Technical domains that include effects, energy, quantum science, organics and materials, new compute, robotics, and photonics
Depending on program assignment, your work may involve these areas or other emerging MXO priorities. Learn more about DARPA MXO
What You Will Do- Provide authoritative technical judgment on communications, applied physics, RF, photonics, devices, components, systems, or related research areas.
- Lead independent assessments of complex performer approaches, integration challenges, tests, failure investigations, and recovery strategies.
- Advise on new program concepts, technical milestones, evaluation criteria, system-level consequences, and transition pathways.
- Build shared understanding among program managers, research performers, Government partners, test organizations, and senior leaders.
- Advise DARPA program managers on program planning, technical execution, cost, schedule, risk, and transition considerations throughout the R&D lifecycle.
- Assess performer progress through technical reviews, site visits, laboratory results, tests, demonstrations, and other program events; identify concerns early and recommend practical risk-reduction actions.
- Coordinate with performers, Government partners, test organizations, transition stakeholders, and other technical experts to keep complex efforts moving toward measurable program objectives.
- Develop clear technical and programmatic products for DARPA leadership and external stakeholders, including review briefings, decision materials, trip reports, technical assessments, and program documentation.
- Support the development of new program concepts by researching emerging science and technology, evaluating military relevance and feasibility, and contributing to trade studies, sensitivity analyses, and new-start materials.
- Provide independent, objective advice while protecting sensitive information and complying with all security, organizational conflict-of-interest, and Government requirements.
- Travel may include locations within and outside the continental United States and occasional international travel in support of program reviews, tests, demonstrations, or partner engagement.
- Master's degree
- 20 or more years of relevant experience
- U.S. citizenship required for security-clearance eligibility
- Expert credentials or broad recognition as an authority in communications, engineering, physics, or a closely related discipline.
- Mature judgment and extensive experience advising senior Government or research leaders on complex technical matters.
- Ability to independently address consequential R&D engineering problems, resolve important questions, and plan and coordinate multidisciplinary work.
- Advanced command of the techniques, theories, and practices required in the candidate's discipline.
- Strong written and verbal communication skills.
Skills Required
- Master's degree
- 20 or more years of relevant experience
- U.S. citizenship required for security-clearance eligibility
- Expert credentials or broad recognition as an authority in communications, engineering, physics, or a closely related discipline
- Mature judgment and extensive experience advising senior Government or research leaders on complex technical matters
- Ability to independently address consequential R&D engineering problems, resolve important questions, and plan and coordinate multidisciplinary work
- Advanced command of the techniques, theories, and practices required in the candidate's discipline
- Strong written and verbal communication skills
ECS Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ECS and has not been reviewed or approved by ECS.
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Healthcare Strength — ECS advertises multiple national-network medical plan options with HSA eligibility alongside dental and vision coverage. Coverage generally begins quickly and is paired with company-paid short- and long-term disability, adding stability to the health package.
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Retirement Support — A 401(k) with Safe Harbor and immediate vesting on employer contributions is emphasized, with an employer match available. Access to an employee stock purchase plan via the parent company provides an additional savings avenue.
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Parental & Family Support — Paid parental leave up to 30 days, adoption assistance, and other family-oriented leaves are highlighted. Feedback suggests these offerings add meaningful value beyond base pay for many roles.
ECS Insights
What We Do
ECS, a segment of ASGN (NYSE: ASGN), delivers advanced solutions and services in cloud, cybersecurity, artificial intelligence (AI), machine learning (ML), application and IT modernization, and science and engineering. The company solves critical, complex challenges for customers across the U.S. public sector, defense, intelligence and commercial industries. ECS maintains partnerships with leading cloud, cybersecurity, and AI/ML providers and holds specialized certifications in their technologies. Headquartered in Fairfax, Virginia, ECS has more than 3,400 employees throughout the U.S. and has been recognized as a Top Workplace by The Washington Post for the last five years.








