Principal Engineer, Survivability (R4608)

The Rundown AI, Inc.; San Francisco (CA); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

Bonus

Benefits

Equity

Job summary

A technology organization in California seeks a Survivability Engineer to enhance the low observable performance of their advanced autonomous aircraft. The ideal candidate will have extensive experience in low observable engineering, radar cross-section shaping, and electromagnetic signature modeling. You will work collaboratively across multiple teams to drive the integration of survivability features while ensuring mission success in contested environments. Full-time positions include competitive salary, benefits, and equity options.

Qualifications

• 10+ years of hands-on experience in LO or survivability engineering.
• Proficiency with EM simulation tools.
• Strong understanding of RCS shaping principles.

Responsibilities

• Design and optimize low observable features across the airframe.
• Conduct modeling and simulation of electromagnetic signatures.
• Lead signature testing efforts, including RCS range tests.

Skills

Low observable (LO) engineering

Radar cross-section (RCS) shaping

Electromagnetic signature modeling

Effective communication skills

Education

B.S. or M.S. in Aerospace Engineering, Electrical Engineering, Physics or related discipline

Tools

HFSS

CST Studio Suite

Xpatch

SENTRi

Job description

Job Description:

At Shield AI, we're building the most intelligent autonomous aircraft ever deployed. As we push the boundaries of what’s possible in contested environments, we are looking for a Survivability Engineer to shape and optimize the low observable (LO) performance of our next‑generation autonomous aircraft.

This role is ideal for an experienced engineer with expertise in radar cross‑section (RCS) shaping, LO materials, and electromagnetic signature modeling who thrives in a fast‑paced, mission‑driven environment. You’ll work across disciplines to ensure our aircraft can survive, evade, and complete missions in highly contested airspace.

What you'll do:

• Design and optimize low observable (LO) features across the airframe focusing on shaping, edge treatments, radar‑absorbing materials, and subsystem integration.
• Conduct modeling and simulation of electromagnetic signatures using industry‑standard tools such as HFSS, CST Studio Suite, Xpatch, and SENTRi.
• Work with multidisciplinary teams in propulsion, avionics, structures, and AI to ensure survivability is baked into the system architecture from day one.
• Lead or support signature testing efforts, including indoor and outdoor RCS range tests, validation campaigns, and supplier‑level hardware evaluations.
• Translate mission threats and requirements into survivability features that address RCS, thermal, visual, and acoustic observability constraints.
• Partner with materials scientists to mature radar‑absorbing coatings and structural RAM for manufacturability and field durability.
• Support internal and customer assessments, threat‑modeling reviews, and milestone decisions throughout the program lifecycle.

Required qualifications:

• B.S. or M.S. in Aerospace Engineering, Electrical Engineering, Physics, or a related discipline.
• 10+ years of hands‑on experience in LO or survivability engineering, preferably on tactical aircraft, UAVs, or stealth systems.
• Proficiency with EM simulation tools such as HFSS, CST, Xpatch, or SENTRi.
• Strong understanding of RCS shaping principles, edge treatments, cavity suppression, and materials integration.
• Practical experience with LO testing methods and RCS measurement equipment.
• Familiarity with radar‑absorbing materials (RAM), LO coatings, and structural LO trade studies.
• Solid collaboration and communication skills with the ability to work across design, test, and manufacturing teams.
• U.S. Citizenship and active Secret clearance required.

Preferred qualifications:

• Experience with military UAV platforms or 5th‑gen fighter programs.
• Background in survivability analysis in contested environments (e.g., IADS, radar networks).
• Familiarity with platform CONOPS, threat‑modeling, and mission‑level survivability assessments.
• Ability to contribute to the design, test, and fielding of a fully integrated LO platform.
• Active Top Secret or SCI clearance.

Full‑time regular employee offer package: Pay within range listed + Bonus + Benefits + Equity.

Temporary employee offer package: Pay within range listed above + temporary benefits package (applicable after 60 days of employment).

Salary compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, licenses and certifications, and specific work location. All offers are contingent on a cleared background and possible reference check. Military fellows and part‑time employees are not eligible for benefits. Please speak to your talent acquisition representative for more information.

Shield AI is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed toequal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, marital status, disability, gender identity or Veteran status. If you have a disability or special need that requires accommodation, please let us know.