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Added 1 min ago
Staff Guidance Navigation and Control Software Engineer (GNC)
Anduril Industries
Costa Mesa, CA · Santa Ana, CA
…of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of…
Added 2 mins ago
Sentinel - Systems Engineer - 20176
Northrop Grumman
Roy
Must have an active U.S
Added 2 mins ago
Systems Engineer - Level 4 (AHT)
Northrop Grumman
Redondo Beach
Northrop Grumman’s Space Systems Sector is seeking a Systems Engineer – Level 4 to join our team in Redondo Beach, CA.
Added 2 mins ago
Sentinel - Principal / Sr Principal Systems Engineer - 19242
Northrop Grumman
Roy
Northrop Grumman Defense Systems is seeking a Principal Systems Engineer / Sr. Principal Systems Engineer. This opening is in Roy, UT and will support the Sentinel Program. Northrop Grumman…
Added 2 mins ago
Principal Mechanical Engineer
Echodyne Corp
Kirkland, WA
Echodyne is seeking a PrinIcipal Mechanical Engineer to join the Advanced Technology Development team and lead mechanical architecture and design for rapid radar prototypes, electronics…
Added 2 mins ago
Space Electronics Test Systems Mechanical Design Engineer (Associate, Experienced and Lead)
The Boeing Company
El Segundo, CA
…initiatives, but also supports the entirety of the Boeing Defense and Security product line and even some Boeing Commercial Aviation products. As part of our collective efforts, you will…
Added 2 mins ago
Senior Special Test Equipment Project Engineer
The Boeing Company
El Segundo, CA
This Project Engineer will be assigned to multiple programs (both commercial and government) and projects. They will lead their team through the design and delivery of test hardware,…
Added 5 mins ago
Principal Software Engineer & Architect, Cyber Defense Engineering
ServiceNow
Santa Clara, CA
As Principal Software Engineer & Architect, you will own the technical direction of the data and platform systems behind detection, investigation, hunting, response, and AI-driven defense.…
Added 6 mins ago
Senior Cisco Security Engineer
Insight
San Francisco
Insight delivers managed infrastructure, operations and security services for some of the most recognizable brands in North America. Many of the large enterprise clients we support are…
Added 7 mins ago
Full Stack AI Engineer
Micron Technology
Boise
Demonstrated experience with prompt engineering and Vibe Coding Prototypes, AI tool integration, and evaluating AI system reliability, security, and failure modes.
Added 7 mins ago
Full Stack AI Engineer
Micron Technology
Boise
Demonstrated experience with prompt engineering and Vibe Coding Prototypes, AI tool integration, and evaluating AI system reliability, security, and failure modes.
Added 9 mins ago
Information Systems Security Engineer – Product Security
Cubic Digital Intelligence Inc
Ashburn, VA
The Information Systems Security Engineer (ISSE), serving within the Product Security Team, supports the security of deployed products throughout their sustainment lifecycle.
Added 9 mins ago
Z5
Environmental Qualification Engineer - EMI/EMC
Zone 5 Technologies
San Luis Obispo, CA
- $177,000 to $210,000 USD / year
Zone 5 Technologies is seeking an Environmental Qualification Engineer specializing in EMI/EMC to lead electromagnetic qualification testing of advanced counter-UAS and missile systems for…
Added 9 mins ago
AI Platform Engineer
Polygon Labs
Remote, United States
- Build and manage MCP servers, including system design, hosting, security, authentication (e.g. per-user OAuth), and keeping a clean connector inventory for Slack, GitHub, Jira, HubSpot,…
Added 10 mins ago
Senior Cloud / OSCAL Developer
Peraton
Washington, DC
Coordinate with Senior ISSEs and the DPM to validate pipeline outputs and ensure OSCAL artifacts reflect current system security state
Added 12 mins ago
N
Mechanical Engineer - Non Oily Waste (Part-time)
Noblis
Oklahoma City, OK
- Part-time
…life-cycle savings. Noblis is looking to hire a Mechanical Engineer to provide support to various ship programs for the US Navy in the areas of oil pollution abatement in the wastewater…
Added 12 mins ago
T
Network Infrastructure Engineer
TEKsystems
Oklahoma City, OK
- $40 to $50 USD / hour
…extensive troubleshooting and part replacement work across the system. Working at the direction of customer, you will respond directly to customer requests and assignments, provide them…
Added 12 mins ago
Senior Front-End and Agentic-UI Engineer
Evolent
Oklahoma City, OK
…care, we seek to connect the pieces of fragmented health care system and ensure people get the same level of care and compassion we would want for our loved…
Added 12 mins ago
Core Senior .NET Software Engineer
Evolent
Oklahoma City, OK
…care, we seek to connect the pieces of fragmented health care system and ensure people get the same level of care and compassion we would want for our loved…
Added 15 mins ago
R
Cybersecurity Engineer
Rule4
Boulder, CO
- $85,000 to $125,000 USD / year
As a cybersecurity engineer you will work side-by-side with clients that are changing the world across industries such as healthcare, manufacturing, finance, utilities, government, outdoor…
Added 16 mins ago
Security Engineer Internship – 2027 (US)
Amazon.com Services LLC - A57
Seattle, WA
By applying to this position, your application will be considered for all Security Engineer roles at all locations we hire for in the United States including but not limited to: Greater…
Added 16 mins ago
Sr. Communication Sys Engineer, Modeling and Simulation
KGS LLC
Arlington, VA · Redmond, WA · El Segundo, CA · Northridge, CA
…government customers. As a Modeling and Simulation Systems Engineer supporting that mission, this role is primarily responsible for assessing and analyzing how both Leo's capabilities and…
Added 16 mins ago
Digital Hardware Design Engineer Co-op (Winter/Spring)(Onsite)
RTX
United States
Qualifications You Must Have: · Must have a minimum of 60 hours of credit by the start of the internship/co-op session
Added 16 mins ago
Digital Hardware Design Engineer Co-op (Summer/Fall 2027)(Onsite)
RTX
United States
Qualifications You Must Have: · Must have a minimum of 60 hours of credit by the start of the internship / co-op session
Added 16 mins ago
Hardware Engineer II
RTX
United States
Qualifications You Must Have:

KGS LLC

Sr. Communication Sys Engineer, Modeling and Simulation

Arlington, VA, United States
Redmond, WA, United States
El Segundo, CA, United States
Northridge, CA, United States

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Job details

Posting language: English
Posted: Nov 13, 2026

Original job description

Amazon Leo is a low Earth orbit satellite constellation providing low-latency, high-speed broadband connectivity to unserved and underserved communities around the world. The mission of Amazon Leo for Government is to leverage Leo and provide high speed, low latency, and secure satellite services to United States and allied government customers. As a Modeling and Simulation Systems Engineer supporting that mission, this role is primarily responsible for assessing and analyzing how both Leo's capabilities and Leo products built for government perform against government use cases, and for producing the analyses that underpin government contract work. You will evaluate system and network performance from the capacity, coverage, latency, and availability point of view to determine how Leo delivers the operational outcome the customer mission needs. It is a unique opportunity to innovate and define groundbreaking wireless technology with few legacy constraints.

Key job responsibilities

Own system-level modeling, simulation, and analysis for government mission scenarios and constellation designs, across coverage, capacity, latency, and availability, from concept trades through customer deliverables
Perform mission engineering: translate customer mission objectives into scenarios and measures of effectiveness, develop design reference missions and CONOPS, and model whether the end-to-end system delivers the required operational outcome
Apply orbital mechanics, including orbit and constellation geometry, reference frames, revisit and access behavior, and station-keeping and conjunction considerations, as the foundation of coverage, access, and contact analyses
Design and evaluate resource scheduling and allocation approaches, heuristic or solver-based, for contact scheduling, satellite beam assignment, and prioritization under power, thermal, and spectrum constraints
Evaluate complex multi-disciplinary trades involving RF bandwidth and network resource allocation to customers, optimizing customer experience against cost, power, and spectrum, including constellation design and link selection trades
Build and/or utilize RF and optical link budgets and combine them with orbital constellation dynamics to model time-varying system capacity, latency, and availability
Model inter-satellite geometry and access, including link availability windows, contact scheduling, and handover behavior
Extend existing simulation code and tools, and create new simulation models representative of the target system (primarily MATLAB, also C++ / Python), designing around hardware and software capabilities and constraints to support a dynamic network topology
Prepare and present technical content for government customers and program reviews, including analysis packages, visualizations, briefings, and proposal material
Account for self-interference and interference with other space and terrestrial communication systems in coverage and capacity analyses

Export Control : This position requires that the candidate selected be a U.S. Citizen in order to comply with U.S. government-imposed requirements related to the nature of the work and/or where it will be performed.

This position requires that the candidate selected be a US Citizen and candidates must be able to obtain and maintain a US Government security clearance of TS/SCI. Basic qualifications

Bachelor's degree in Electrical Engineering
Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Manufacturing Engineering, or an equivalent field
5+ years of experience in satellite or network system design, modeling, and analysis
Strong understanding of orbital mechanics and constellation geometry, including modeling orbits, reference frames, and vector geometry to simulate the time-varying relative geometry of satellites and ground nodes
5+ years of experience developing code in MATLAB, C, C++, or Python, including industry-standard coding and regression practices
Working knowledge of RF or optical link budgets and how link performance drives system capacity and availability
Experience with resource scheduling, allocation, or optimization for a communications or satellite system (e.g. contact scheduling, link or beam assignment)
Strong written and verbal communication skills, including preparing and presenting technical content for customers and program reviews Preferred qualifications
Master's or PhD in Aerospace Engineering, Electrical Engineering, Computer Science, Physics, a related discipline, or equivalent experience
Experience with satellite constellation design and constellation management trades
RF or communications system design and modeling background, covering link-level analysis, communication theory, OFDM/MIMO, and digital/wireless communication systems
Experience with optical inter-satellite links and space-to-space access analysis
Experience with graph theory and network topology analysis
Familiarity with satellite operations, mission planning, and contact scheduling
Experience supporting government or national security programs and proposals
Experience with mission engineering or mission-level analysis, including design reference missions, CONOPS development, scenario and vignette analysis, and measures of effectivenes

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.

USA, CA, El Segundo - 129,200.00 - 174,800.00 USD annually USA, CA, NORTHRIDGE - 129,200.00 - 174,800.00 USD annually USA, VA, Arlington - 129,200.00 - 174,800.00 USD annually USA, WA, Redmond - 129,200.00 - 174,800.00 USD annually

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More about this job

Skills

Communication skills
Scheduling
Prioritization
Customer experience
The MathWorks MATLAB
C++
Python
Electrical engineering
Mechanical engineering
Aerospace engineering
C
Computer science
Customer service
Recruitment
Mental health

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Work requirements

Jobs in the United States