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Added 35 mins ago
Senior Network Operations Engineer – Tier 3
CACI International
Washington, DC
…across the network environment. Additionally, you will design, engineer, and deploy network solutions of varying complexity to support customer requirements, enhance operational…
Added 35 mins ago
Undersea Systems Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Washington, DC
Join our team as a Systems Security Engineer supporting cybersecurity and systems security analysis for U.S. Navy afloat and undersea platforms. You will help design, assess, and implement…
Added 1 hour ago
Project engineer ii
Essential Utilities, Inc.
Bryn Mawr, PA
…within our eight-state footprint, ranging from field workers and customer service representatives who are on the front lines working with customers, to scientists and engineers who help…
Added 1 hour ago
Lead Engineer - Operational Technology Network Security
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Digital Hardware Engineer
BAE Systems
Totowa, NJ
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Added 1 hour ago
Maintenance Engineer
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Independence, MO
Are you passionate about the patient experience? At HCA Healthcare, we are committed to caring for patients with purpose and integrity. We care like family! Jump-start your career as a…
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Mechanical Engineer II (4830)
Honeywell
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…accredited program in Engineering or Physics - 2+ years of relevant experience in engineering, analytical, or related technical activities. - Ability to travel up to 10% of the time -…
Added 1 hour ago
Information Systems Security Engineer (ISSE) Linux/RHEL
CACI International
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Job Title: Information Systems Security Engineer (ISSE) Linux/RHEL
Added 1 hour ago
Software Test Engineer (Integrated Training Systems) - 30882
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Customer First – Focus on the mission and those we serve.
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Red Team Penetration Tester
BOOZ, ALLEN & HAMILTON, INC.
Dahlgren, VA
…product, or provided in IT services. You will also provide customer support by performing packet-level analysis using appropriate tools such as Wireshark and tcp dump, to identify specific…
Added 2 hours ago
Cyber Security Engineer
CACI International
High Point, NC
…posture in support of national security. We are looking for an Engineer willing to travel and maintain security at customer…
Added 2 hours ago
Network Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fayetteville, NC
As a Network Engineer, you will help maintain and execute a network of simulators and modeling capabilities focused on providing exercise capabilities for various units. These simulators…
Added 2 hours ago
Full Stack Software Engineer II
SONY CORPORATE SERVICES GROUP INC
MADISON, WI
…entertainment excellence and creativity. Full Stack Software Engineer II (Contract Role) Madison, WI Playstation is looking for a Software Engineer to build our next-generation technologies…
Added 2 hours ago
Full Stack Software Engineer II
SONY CORPORATE SERVICES GROUP INC
MADISON, WI
…entertainment excellence and creativity. Full Stack Software Engineer II (Contract Role) Madison, WI Playstation is looking for a Software Engineer to build our next-generation technologies…
Added 2 hours ago
Engineer I, Engineer II, Engineer III Gr
ALLIANT ENERGY CORP
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Added 2 hours ago
Software Verification Engineer
GE HealthCare
Madison, WI
We are seeking a detail-oriented and driven Software Verification Engineer to join our engineering team. In this role, you will be responsible for performing verification testing and…
Added 2 hours ago
Electrical CAD Drafter
WISCONSIN ELECTRIC POWER CO
MILWAUKEE, WI
Added 2 hours ago
BA
Tier 3 MLOPs Engineer
Booz Allen Hamilton
Aurora, CO
- $55,200 to $126,000 USD / year
…development, engineering, and analytic skills? As a Tier 3 MLOps Engineer on our team, you will work with a collaborative Agile development team to manage Tier 3 incidents and help build…
Added 3 hours ago
Electrical Engineer II (Power Systems)
Dennis Group
Salt Lake City, UT
4-7 years of work experience in electrical systems for building power.
Added 3 hours ago
Engineer I - R&D Disposables (hybrid)
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…legacy, we are deepening our commitment to elevating the dialysis experience through digital solutions and advanced services, while looking beyond kidney care and investing in transforming…
Added 3 hours ago
Infrastructure Engineer II
Emergent Holdings, Inc.
Minneapolis, MN
The Infrastructure Engineer II role is responsible for the operations of secure and highly available computing platforms, servers, and networks. This role is responsible for installing,…
Added 3 hours ago
Systems Engineer II-Enterprise Collaboration
WESTERN GOVERNORS UNIVERSITY
SALT LAKE CITY, UT
Added 4 hours ago
M
Engineer II (Overnight)
Marriott
SAN JUAN CAPISTRANO, CA
- $32.5 USD / hour
…Display the ability to train and mentor other engineers (e.g., Engineer I). Display ability to perform Engineer on Duty responsibilities, including readings and…
Added 4 hours ago
IT Manager II
Ross Stores, Inc.
Dublin, CA
…savings. All while providing a fun and exciting treasure hunt…
Added 4 hours ago
Engineer II
General Atomics
Poway, CA
We have an exciting entry level career opportunity for a highly motivated Dynamics Engineer within our Airframe Integrity Group located in Poway, CA. This position will report to the…

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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