Jobs in the United States

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Added 1 min ago
Hiring Event - RF Radar Engineer
Rocket Lab - Events
Long Beach, CA
Foundational knowledge of radar systems including radar equations and basic signal processing concepts
Added 22 mins ago
Sr Principal System Security Engineer
Northrop Grumman
Rolling Meadows, IL
Basic Qualifications for Sr. Principal Systems Security Engineer:
Added 54 mins ago
ST
Senior Wireless Communication Systems Engineer
Silvus Technologies, Inc.
Irvine, CA
- $155,000 to $195,000 USD / year
Silvus is seeking a full-time Senior Wireless Communication Systems Engineer who will report to the Senior Engineering Director on the Irvine Engineering team. This engineer will develop…
Added 1 hour ago
Systems Engineer / Principal Systems Engineer - Modeling & Simulation
Northrop Grumman
Rolling Meadows
Must have an active U.S
Added 1 hour ago
Principal/Sr. Principal Modeling & Simulation Systems Engineer
Northrop Grumman
Rolling Meadows
This position can be filled at the Principal Modeling & Simulation Systems Engineer or Sr. Principal Modeling & Simulation Systems Engineer level based on specific requirements.
Added 1 hour ago
Modeling & Simulation Systems Engineer
Northrop Grumman
Rolling Meadows
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our…
Added 1 hour ago
Staff SEIT Lead
Northrop Grumman
Bethpage
The Staff SEIT Lead is responsible for directing the execution of the overall systems engineering, integration, and test (SEIT) effort on the program and is responsible for horizontal and…
Added 1 hour ago
Principal/Sr. Principal PWB Design Engineer
Northrop Grumman
Remote, United States
Northrop Grumman offers challenging career opportunities in Hardware Engineering within the Mission Systems Sector that plays a key role in the mission to protect our military personnel.…
Added 1 hour ago
Senior Principal Engineering Program Management ( EPM )
Northrop Grumman
Baltimore
…individuals. You will support the Program Manager and Chief Engineer as a Systems Architect on multiple major development…
Added 1 hour ago
SkillBridge Internship Program is seeking our exceptional enlisted-military talent to join us as a Systems Engineer - 2
Northrop Grumman
Huntsville
Northrop Grumman Space Systems SkillBridge Program seeks exceptional enlisted-military talent to join our team as a Systems Engineer - 2 to support the Systems Engineering & Integration…
Added 1 hour ago
Engineer Electronics – Manufacturing Engineering (RF) 2/3
Northrop Grumman
Rolling Meadows
Northrop Grumman Mission Systems is looking for you to join us as an Engineer Electronics – Manufacturing Engineering (RF) based on-site in Rolling Meadows, IL.
Added 1 hour ago
IS
Senior Digital Signal Processing Engineer
Impulse Space
Redondo Beach, CA
- $130,000 to $280,000 USD / year
…communications, position/navigation/timing (PNT), RF sensing, and radar systems. We are seeking a proactive Senior Digital Signal Processing Engineer to lead DSP architecture and algorithm…
Added 1 hour ago
Senior Staff Engineering Program Management ( EPM )
Northrop Grumman
Baltimore
…individuals. You will support the Program Manager and Chief Engineer as a Systems Architect on multiple major development…
Added 1 hour ago
Principal/Sr. Principal Engineer Microelectronic Semiconductors
Northrop Grumman
Apopka
Northrop Grumman Mission Systems is seeking an experienced and motivated Microelectronics Semiconductor Metals Process Engineer (Principal or Sr. Principal) for our Advanced Packaging…
Added 1 hour ago
Senior Principal RF Microwave Design Engineer
Northrop Grumman
Remote, United States
The designer must have good communication and presentation skills
Added 1 hour ago
Principal / Senior Principal Electronics Engineer
Northrop Grumman
Baltimore
Must have the ability to obtain/maintain SAP clearance and/or program-specific clearances
Added 2 hours ago
NG
2027 Electronics Engineering Intern - Elkridge MD
Northrop Grumman
Elkridge
- $20.5 to $45.5 USD / hour
Northrop Grumman is seeking Electronics Engineer for an internship opportunity. This position will be located at our Mission Systems sector in Elkridge, MD.
Added 2 hours ago
Staff Engineering Program Management ( EPM )
Northrop Grumman
Baltimore
…individuals. You will support the Program Manager and Chief Engineer as a Systems Architect on multiple major development…
Added 2 hours ago
Principal Mechanical Engineer
Echodyne Corp
Kirkland, WA
…Protection, Border Security, Smart Cities, Uncrewed Aircraft Systems (UAS), and Airspace Management including Urban Air Mobility…
Added 2 hours ago
Space Electronics Test Systems Mechanical Design Engineer (Associate, Experienced and Lead)
The Boeing Company
El Segundo, CA
Boeing Space, Intelligence & Weapons Systems is currently hiring a Space Electronics Test Systems Mechanical Design Engineer (Associate, Experienced and Lead) to join us as part of our…
Added 2 hours ago
Equipment Engineer
Micron Technology
Manassas
…troubleshooting across mechanical, electrical, software, and plasma systems. Own PM strategy, including procedure development, cycle time reduction, training, and chronic issue mitigation.…
Added 2 hours ago
Sr. Communication Sys Engineer, Modeling and Simulation
KGS LLC
Arlington, VA · Redmond, WA · El Segundo, CA · Northridge, CA
…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…
Added 2 hours ago
Senior Mechanical Engineer (Onsite)
RTX
United States
Qualifications You Must Have
Added 2 hours ago
T
RF Test Engineer
TEKsystems
Cupertino, CA
- $60 to $75 USD / hour
We are seeking a skilled RF Test Engineer to join our team. As part of our team, you will be responsible for executing RF characterization, conducting OTA antenna measurements, and…
Added 2 hours ago
Antenna Engineer
RADAR
San Diego, CA
…work closely with cross-functional teams spanning hardware, RF systems, and product engineering to deliver robust, scalable RFID sensor-antenna…

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