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Added 5 hours ago
RF Design Electrical Engineer II (Onsite)
RTX Corporation
tucson, AZ
At Raytheon , the Effector RF Design Department is seeking current college students for an RF design position to work with a variety of programs as a contributor to detailed design,…
Added 5 hours ago
RF Mechanical Engineer II (Onsite)
RTX Corporation
tucson, AZ
At Raytheon , the Effector RF Design Department is seeking talented engineers with the skills and passion to develop complex Radio Frequency (RF) systems, subsystems and components,…
Added 5 hours ago
Antenna Design Electrical Engineer II (Onsite)
RTX Corporation
tucson, AZ
At Raytheon , the Effector RF Design Department is seeking talented engineers with the skills and passion to work on complex projects that shape antenna, radome, and antenna measurement…
Added 5 hours ago
FPGA Electrical Design Engineer II (Onsite)
RTX Corporation
tucson, AZ
…environments and into space. We are responsible for the architecture, design, and documentation of deliverable FPGA embedded processing at Raytheon…
Added 10 hours ago
Senior Electrical Engineer II
Formova LLC
Chalfont, PA
JBT Marel is seeking a Senior Electrical Engineer II to join our Electrical Engineering team in Chalfont, PA. This position is responsible for the electrical design, development,…
Added 11 hours ago
Sr. Thermal Engineer (Starlink)
SpaceX
Bastrop, TX
As a thermal engineer, you are responsible for the thermal design, test, and validation of all Starlink hardware. This includes but is not limited to phased array antennas, custom silicon…
Added 12 hours ago
Senior Modeling & Simulation Engineer (TS/SCI)
K2 Space
Los Angeles, CA
You will build the modeling and simulation capabilities that let us design, verify, and operate spacecraft for demanding national security missions. You will simulate and verify the…
Added 16 hours ago
Software Engineer: Perception (II,III)
Lodestar
Los Angeles, CA
As a Software Engineer II/III - Perception at Lodestar, you’ll be joining the perception and machine vision teams to rapidly grow our vision and perception models at MITHRIL’s center.
Added 16 hours ago
Electrical Engineer II - Test Software
RTX
United States
Our Airborne RF Electronics EE Department has an immediate opening for a Electrical Engineer II - Test Software with strong experience in automated test systems, diagnostic software, and…
Added 17 hours ago
Engineer II
General Atomics
Herndon, VA
We have an exciting opportunity for an Electrical Engineer to join our CSS group located in Herndon, VA. The CSS group provides innovative, cutting-edge, security solutions for the United…
Added 18 hours ago
Electrical and Computer Engineering Faculty (Open Rank, Multiple Positions)
Florida Polytechnic University
United States
Teach undergraduate and graduate courses in electrical and computer engineering, including hands-on laboratory and design courses
Added 20 hours ago
Summer 2027 Systems Engineering Intern
Leonardo DRS, Inc.
Frederick, MD
As a System Engineer Intern, you will play a key role in supporting the design, analysis, integration, and validation of cutting-edge RF systems. You will collaborate with engineers and…
Added 20 hours ago
Hardware Development Engineer II, Amazon Leo
Amazon
Redmond, WA
We are looking for a hands-on Test Engineer to join the CommSys team within AMZ Leo RF/Modem Dev, responsible for validating 3GPP- and O-RAN-compliant network elements (RAN HW/SW) across…
Added 1 day ago
Software Engineer II Low Level Embedded Software
BAE Systems
Merrimack, NH
We are looking for a talented early career software engineer to support analyzing, developing, and coding complex software for embedded system development. You will be an integrated team…
Added 1 day ago
Fiber Engineer
SpaceX
Memphis, TN
As a Fiber Engineer at SpaceX, you will work in a complex environment designing and supporting a variety of critical infrastructure. The IT network infrastructure team designs, installs and…
Added 1 day ago
Systems Integration/Test Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
System design and test experience with one or more subsystems or fields outside of Systems Engineering (e.g., Electrical Mechanical, Propulsion, RF, Software, etc.)
Added 1 day ago
Radio Frequency Engineer - Early Career
Lockheed Martin
Colorado Springs, CO · Colorado Springs
Added 1 day ago
Test Solution Electrical Engineer II
RTX
United States
…ever - and Test is at the center of making that possible! We design and deliver the test capabilities that ensure every product leaving our lines is ready for the…
Added 1 day ago
RF Test Systems Engineer II - Onsite McKinney, TX
RTX
United States
Support Lead Test Development engineer in the design, integration, verification, and validation of production test solutions for RF modules, RF CCAs, antenna subassemblies as well as power…
Added 1 day ago
Sr. IT Wireless Network Engineer
SpaceX
Memphis, TN
SpaceX is looking for an experienced wireless network engineer with a strong background in designing, deploying and managing wireless networks in an enterprise environment. This employee…
Added 1 day ago
Device Engineer II (RF/EMC)
Alarm.com
Tysons, VA
…abroad. We are looking for a talented and passionate RF/EMC engineer to join the Device Engineering team and help us define the future of the Internet-of-Things for residential and…
Added 1 day ago
Electrical Engineer II/III - Up to 15K Sign-on Bonus
Textron
Hunt Valley, MD
As an electrical engineer, you will perform a variety of assignments including conceptual design, engineering analysis, detailed sub-system electrical design, integration, test, and…
Added 1 day ago
Electrical Engineer II - Cardiac Ablation Solutions
MED Medtronic Inc
Mounds View, MN
The Electrical Engineer II in Cardiac Ablation Solutions (CAS) contributes to the architecture, design, verification, and lifecycle support of complex electrical systems used in cardiac…
Added 1 day ago
IT Wireless Network Engineer
SpaceX
Memphis, TN
SpaceX is looking for an experienced wireless network engineer with a background in designing, deploying, and managing wireless networks in an enterprise environment. This employee will be…
Added 1 day ago
RF Design Engineer II
RTX
United States
Effector RF Design Department is responsible for designing RF and Microwave hardware, including transmitters, receivers, and exciters. This includes design and test activities that span…

K2 Space

Senior Modeling & Simulation Engineer (TS/SCI)

Los Angeles, CA, United States

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Job details

Experience: 5+ years of professional modeling and simulation experience.
Posting language: English
Posted: Oct 30, 2026

Original job description

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by over $1 billion in total funding from leading investors including Altimeter Capital, ICONIQ, Kleiner Perkins, Lightspeed Venture Partners, Redpoint Ventures, and T. Rowe Price - and with over $1 billion in signed contracts across commercial and US government customers, we're mass-producing the highest-power satellite platforms ever built for missions from LEO to deep space.

The rise of heavy-lift launch vehicles is shifting the industry from an era of mass constraint to one of mass abundance, and we believe this new era demands a fundamentally different class of spacecraft. Engineered to survive the harshest radiation environments and to fully capitalize on today's and tomorrow's massive rockets, K2 satellites deliver unmatched capability at constellation scale and across multiple orbits.

With multiple launches in 2027 and plans to scale to 100 satellites a year, we're Building Bigger - helping develop the solar system and build toward a Kardashev Type II (K2) civilization. If you are a motivated individual who thrives in a fast-paced environment and you're excited about contributing to the success of a high-growth Series D-funded company, we'd love for you to apply.

The Role

You will build the modeling and simulation capabilities that let us design, verify, and operate spacecraft for demanding national security missions. You will simulate and verify the software that flies and orchestrates some of the largest satellites ever flown, and model how those systems perform against real mission objectives, threats, and operational constraints. As a senior member of the team, you will drive solutions end-to-end across the software stack, make changes to vehicle control software where needed, set technical direction, and mentor other engineers.

In your first 3 months you will generalize our simulation tools to operate in classified contexts, modeling multiple spacecraft and mission profiles, demonstrating robust performance in contested and demanding environments. In your first 6 months you will design many-agent, mission-level simulations and tools for operating entire constellations, directly informing mission assurance and critical company and program decisions.

This role supports classified national security programs. Work is performed on-site in a secure environment and requires an active TS/SCI clearance and US citizenship.

Responsibilities

Develop mission-level modeling and simulation of national security space missions, capturing operational objectives, environments, and constraints.
Model and analyze constellation-level capability and performance against mission requirements, including network coverage, beam planning, and resilience in contested environments.
Support work on classified programs in accordance with all applicable security requirements.
Create and maintain simulation software infrastructure for our 20kW+ spacecraft.
Develop physics-based software models of spacecraft subsystems, including propulsion, attitude control, power, and communications systems.
Create and utilize robust tools to allow for rapid deployment of quality code.
Perform data analysis and anomaly investigation to identify and resolve on-orbit problems.
Support integration and testing of spacecraft subsystems.
Set technical direction, review designs and code, and mentor junior engineers.

Qualifications

• Active U.S. government security clearance (any level), or a clearance held within the last 12 months, and US Citizenship

Prior experience working on classified national security programs and in secure/SCIF environments, including familiarity with handling classified information and program security protocols.
Bachelor's degree in physics, aerospace/mechanical/electrical engineering, computer science, math, or a STEM field
5+ years of professional modeling and simulation experience.
Development experience in Rust, C++, or similar compiled language.
Experience using scientific Python (NumPy, SciPy, etc.), Julia, MATLAB, or similar.
Demonstrated ability to own complex systems end-to-end and guide the work of other engineers.

Nice to Have

Master's or PhD in physics, aerospace/mechanical/electrical engineering, computer science, math, or a STEM field.
Experience with mission-level or campaign-level modeling and simulation for defense or national security applications.
Facility communicating intuition and expertise effectively to stakeholders.
Experience working in Rust production environments.
Experience defining and creating simulation systems.
Experience with Monte Carlo simulations and probability/statistics.
Experience with linear algebra, controls, and/or orbital mechanics.
Experience with space communication modeling (RF, ground stations).
Basic knowledge of electronics, Linux, and computer architecture.
Experience with continuous integration and continuous delivery systems.

Compensation and Benefits:

Base salary range for this role is $160,000 - $200,000 + equity in the company
Salary will be based on several factors including, but not limited to: knowledge and skills, education, and experience level
Comprehensive benefits package including paid time off, medical/dental/vision/ coverage, life insurance, paid parental leave, and many other perks

If you don’t meet 100% of the preferred skills and experience, we encourage you to still apply! Building a spacecraft unlike any other requires a team unlike any other and non-traditional career twists and turns are encouraged!

If you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.

Export Compliance

As defined in the ITAR, “U.S. Persons” include U.S. citizens, lawful permanent residents (i.e., Green Card holders), and certain protected individuals (e.g., refugees/asylees, American Samoans). Please consult with a knowledgeable advisor if you are unsure whether you are a “U.S. Person.”

The person hired for this role will have access to information and items controlled by U.S. export control regulations, including the export control regulations outlined in the International Traffic in Arms Regulation (ITAR). The person hired for this role must therefore either be a “U.S. person” as defined by 22 C.F.R. § 120.15 or otherwise eligible for a federally issued export control license.

Equal Opportunity

K2 Space is an Equal Opportunity Employer; employment with K2 Space is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

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