Principal Defense Systems Analyst
STR
Make my CV for this job, freeView job and applyYour CV, rewritten for this role using only your real experience. Sign in with Google and upload your CV. Nothing to install.
Skills named in this job
Read from the description itself, not inferred.
This role on the market
140 open defense roles across 44 companies are on ApplySarthi right now, most of them in Hyderabad (3), Bengaluru (2), Mumbai (1).
- Federal, Aerospace, & Defense (FA&D) Partner ManagerJobgether
- Federal, Aerospace, & Defense (FA&D) Partner ManagerPtc
- C-32A and C-40B/C Experienced Field Service Representative-DefenseBoeing
- Senior Manager, Italy – Defense Systems & Ecosystem DevelopmentAnalogdevices
- Software Engineer - Multi-Agent UAV Autonomy (Defense)Applied
What defense roles keep asking for: Python (15%) — counted across their open postings here.
C++ jobs · MATLAB jobs · Python jobs
STR has 134 open roles listed here.
- Chief Strategist
- Chief Strategist
- Chief Strategist (TL1)
- Principal Scientist
- Senior Cyber RF Hardware Engineer
Counted across 14 company job boards, updated as roles open and close.
Preparing for this interview
Interviews for defense roles keep coming back to Python. Practise those questions before you sit with STR.
Questions you are likely to be asked
- Why do you want to join STR?
- What is your experience with C++? Tell me one thing you learned the hard way.
- Explain a join or a window function you have used, and why you needed it.
- How would you explain a surprising number to a manager who does not believe it?
- Tell me about an analysis that changed a decision. What did you find?
Prep Sarthi gives you a free mock interview: an AI interviewer asks you questions like these out loud, from your own CV and this job, and shows your score and your weakest answer.
Practise the Principal Defense Systems Analyst at STR interview free →About the Team
The Sensors Division at STR focuses on technology development for advanced sensor systems and platforms in support of national security. At STR, Defense Systems Analysts study complex defense technologies and systems by building representative, physics-based models; analyzing data; developing metrics of performance; and evaluating these models against mission requirements. In addition, the analyst will often integrate the algorithms and control systems that are critical to operations of modern defense systems.
The Systems Autonomy, Analysis, and Modeling (SAAM) Group within the Sensors Division uses modeling and simulation to create and analyze system architectures and designs and their mission impact. We focus on the capability and limitations of ground, air, and space sensing and counter-sensing platforms (both crewed and uncrewed) and the resource management of these assets in the service of the survivability and capability of US air and space assets (e.g., the F-35 Joint Simulation Environment) using the methods of operational and systems analysis. SAAM is developing software and hardware tools and datasets to support these analyses, including algorithms, processing chains, and scenarios to inform and deploy onto prototype demonstration systems as well as operational systems. Our main customer focus is on Air Force, Navy, and DARPA research programs.
The Role:
The SAAM Group is seeking a Principal Defense Systems Analyst to research, design, develop and implement a portfolio of capabilities to characterize the impact of advanced concepts and algorithms on the performance and survivability of operational systems in a variety of scenarios. You will lead and advise fellow researchers, scientists, and engineers on multi-disciplinary teams spread across multiple STR campuses to understand customer objectives, craft strategic plans, lead proposal efforts, and develop innovative solutions to complex and challenging national security problems. Your areas of specific focus will include innovating and developing advanced modeling & simulation and systems engineering capabilities.
A successful candidate will have significant expertise and skill in several of the following areas: systems engineering, radar systems, modeling & simulation, test & evaluation, hardware design, software architecture, resource management, signal processing, and/or communications. This position requires skills in leading multi-disciplinary teams, managing complex system design, development, and test programs, developing technology roadmaps and marketing strategies, as well as deep technical proficiency in relevant technologies. Strong interpersonal, communication, technical, management, mentorship, and peer-leadership skills are also required.
Interviews for this role will require an in-person or virtual presentation.
What you will do:
- Lead multi-disciplinary and multi-site teams to develop system studies and new capabilities
- Develop and implement sensor, platform, and threat models within simulation environments and in support of software and hardware prototypes
- Utilize and enhance simulation tools, incorporating real-world data, to conduct in-depth studies of system performance and effectiveness
- Design, develop, validate, and manage large-scale simulations, with a focus on sensing and counter-sensing technologies
- Serve as a subject matter expert on the capabilities of current and future US and threat weapon systems, sensors, and platforms
- Synthesize complex data into actionable insights, providing strategic assessments and evaluations to inform defense planning and decision-making
- Prepare and deliver comprehensive technical reports and presentations to government customers, articulating the implications of simulation findings on national security
Who you are:
- Active Security Clearance at the Top Secret (TS) level, for which U.S. citizenship is needed by the U.S government
- BS, MS or PhD in Electrical Engineering, Physics, Applied Mathematics, or related field
- 8-10+ years of practical experience in modeling & simulation, sensing modalities (e.g., RF and EO/IR), and systems engineering, including digital engineering
- In-depth knowledge of remote sensing & counter-sensing technologies including airborne/surface-based radar and electronic warfare, and EO/IR sensing systems
- Expertise in one or more scientific programming languages, such as C/C++, Python, or MATLAB
- Experience with AFSIM, the Joint Simulation Environment/NGTS, or similar large-scale simulation environments
- Proven ability to develop modeling and simulation tools and lead teams
- Expertise in platform dynamics, including aerodynamics and orbital dynamics
- Exceptional technical writing and communication skills, with experience in delivering high-stakes presentations to government and military stakeholders
Pay Information
Full-Time Salary Range: $220,000 - $260,000
The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.
STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, Carlsbad, CA, Atlanta, GA, and Denver, CO. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.
STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.
STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.
STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.
If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info.
Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.
Match this job to your CV
ApplySarthi scores your CV against this role, shows the skills you are missing, and writes a tailored version for the application.
Check my match →Similar open roles
- Senior Manager of Supply ChainSTR
- Lead Product Operations ManagerSTR
- Associate Software Reverse EngineerSTR
- Autonomy Algorithms Lead Software EngineerSTR
- Autonomy Algorithms Lead Software EngineerSTR
- Autonomy Algorithms Senior Software Engineer STR
- Autonomy Algorithms Senior Software Engineer STR
- Autonomy Algorithms Senior Software Engineer STR
Need answers during your interview? Try Live Sarthi.
Live Sarthi, an Interview Sarthi app, shows answer suggestions during the call.
- Hidden from supported screen sharingThe overlay stays out of supported Windows screen captures.
- Answers start in about 1.5 secondsResponse time varies with your connection and model.
- From your own CVYour projects and your experience, not a generic script.
- 30 minutes freeThen ₹99 for a 2-day pass with unlimited calls — you pay for the days you are interviewing, not a subscription.
A Windows app, from the same team as ApplySarthi.
Listed on greenhouse · posted 2026-05-19. ApplySarthi collects openings and links to application pages; the role is advertised by STR, not by us.