Scientist
Posted 28 Aug 2026
Advertised as “Senior Scientist - High Power Microwave”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 10+ yrs
- Management level
- Individual contributor
No salary listed for this role.
What Impact You'll Have
Sem-Sol, a GRVTY company is seeking a Senior Scientist who brings an energizing combination of experience and character to the table. The scientist we are looking for knows more than just the subject matter - they know how to get the job done. We always have several Department of Defense projects running, and their successful completion requires your skill and your professionalism. We need a self-motivated individual who also has the strong organizational and communication skills to effectively work as part of a team. As part of the Sem-Sol team, you will be an innovator at the leading edge where R & D and real-world applications meet.
What You'll be Owning
- Collaborating with other scientists, engineers, technicians, and program managers to develop the next generation of High-Power Microwave (HPM) devices and systems.
- Designing, simulating, and testing:
- Vacuum electronics based HPM sources.
- HPM antennas
- Waveguide components such as directional couplers, mode converters, and filters.
- Performing laboratory measurements and calibrations of microwave components and equipment.
- Presenting work at design reviews and conferences.
- Writing reports to describe simulation results.
- Comparing simulation results to experimental results.
- Writing technical proposals.
What You Must Have
- Active Security Clearance is required or ability to obtain a security clearance.
- B.S. in physics, mathematics, electrical engineering, or related field.
- 10+ years of experience working in a microwave engineering-related discipline.
- Experience performing microwave device simulations in CST, ICEPIC, HFSS or similar software.
- Experience working in a research, development, or prototyping environment.
- Experience in writing proposals for competitive solicitations.
What Would be Nice to Have
- 20+ years of experience of working on HPM projects for either the government or industry.
- Familiarity with performing measurements of microwave components and antennas using equipment such as Vector Network Analyzers, Noise Figure Analyzers, Power Meters, and Near Field Arrays.
- M.S. or Ph.D in physics, mathematics, electrical engineering, or related field.
Why Choose GRVTY
The toughest national security challenges demand vision and ingenuity, not just resources. We deliver mission and technical expertise to outpace our adversaries. We’re purpose-built to tackle the most entrenched, systemic national security issues around the world.