Jobs in the United States

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Added 13 days ago
DevOps - Lead Software Engineer
JPMC page
Columbus, OH · Plano, TX
AWS certification, such as Solutions Architect, Developer, or DevOps Engineer
Added 13 days ago
AI/ML Platform Engineer
CACI
Lisle, IL · Lisle
Must have good work ethics and show diligence in work performed
Added 13 days ago
Solutions Architect
Ricoh Americas Corporation
Boulder, CO
AWS Certifications (AWS Certified Solutions Architect, Data Engineer, AI Practitioner, etc.).
Added 13 days ago
VF
2027 Internship - Frontend Engineer (UI)
Virtu Financial
NY
- $5,000 to $5,800 USD / week
…opportunity for students to learn first hand how to design and architect trading tools for scale and performance, and to support the massive amounts of data that flow through Virtu's…
Added 13 days ago
Staff Software Engineer, Platform Cryptography
ServiceNow
Santa Clara, CA
As a Staff AI Security & Crypto Engineer, you will architect and deliver enterprise-scale security solutions that integrate cryptographic systems with machine learning, reasoning engines,…
Added 13 days ago
Senior Quality Engineer - Apple Maps Performance
Apple
Cupertino, CA
Ignite your passion for quality and innovation! We're seeking a visionary Tools and Automation Quality Engineer to architect the future of excellence for Apple Maps. You will dive deep into…
Added 13 days ago
Modeling and Simulation Engineer
SAIC
El Segundo, CA
SAIC is seeking a Modeling & Simulation Software Engineer on the Horizon 2 contract to support the United States Space Force Portfolio Acquisition Executive organization for Space Combat…
Added 13 days ago
O
Principal Core Infrastructure Engineer, OCI Planning & Capacity
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Oracle Cloud Infrastructure is seeking a motivated Principal Core Infrastructure Engineer to join the OCI Infrastructure Planning and Capacity Management organization.
Added 13 days ago
O
Principal Core Infrastructure Engineer, OCI Planning & Capacity
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Oracle Cloud Infrastructure is seeking a motivated Principal Core Infrastructure Engineer to join the OCI Infrastructure Planning and Capacity Management organization.
Added 13 days ago
DevOps Engineer
Ideal Innovations
Bethesda, MD
To be considered, must have an active TS/SCI with polygraph security clearance
Added 13 days ago
Sr. DevOps Engineer
Ideal Innovations
Bethesda, MD
To be considered, must have an active TS/SCI with at least a CI-poly
Added 13 days ago
Staff Software Engineer, Infrastructure
Current
NY
…internal tooling our members and engineers rely on. As a Staff engineer with a backend focus, you will own infrastructure domains that span several squads and work closely with frontend and…
Added 13 days ago
Software Engineer, Global Investment Research, Agentic Systems
Campus
Dallas, TX · NY
…engineering teams that build massively scalable software and systems, architect low latency infrastructure solutions, proactively guard against cyber threats, and leverage machine learning…
Added 13 days ago
Principal Software Engineer (BM/SRM) (26-464) Space AHT
Northrop Grumman
Huntsville, AL
Applicants must have a current, active in-scope Government-issued Secret security clearance at the time of application, which is required to start
Added 13 days ago
Principal DevOps Engineer
LEIDOS, INC.
Bethesda, MD
To be considered must have an active TS/SCI with polygraph security clearance
Added 13 days ago
Senior Software Engineer | C5 SW Architect
General Dynamics Mission Systems, Inc
Remote, United States
As a C5 Software Architect for a next-generation combat vehicle program, you will provide hands-on architectural and technical leadership for a cross-functional engineering team developing…
Added 13 days ago
Software Engineer III - Flight Software (Clearance Required)
Sierra Space
Centennial, CO · Louisville, CO
The Software Engineer III role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires expertise in at least…
Added 13 days ago
Senior Software Engineer
Toyota
Plano, TX
Toyota Financial Services Enterprise Platforms team is seeking a highly motivated Senior Software Engineer to help our growing Enterprise platform needs. The Senior Java Developer will…
Added 13 days ago
AS
GCP Cloud Engineer/Architect (Remote)
August Schell
Rockville, MD
- $150,000 to $190,000 USD / year
· GCP Professional Architect or Security Engineer certification
Added 13 days ago
Chief Software Engineer, Space Ground Systems
Anduril Industries
Colorado Springs, CO · Costa Mesa, CA · Washington, DC
We are looking for a Chief Engineer to join our rapidly growing space ground systems teams in Costa Mesa, Washington DC and Colorado Springs. In this role, you will serve as the technical…
Added 13 days ago
Sr Development Engineer, Manhattan Active
Mclane
Temple, TX
Are you a seasoned software engineer who thrives on solving complex business challenges and building scalable enterprise solutions? We are seeking a Senior Development Engineer to help…
Added 13 days ago
DevOps Engineer Specialists
FIS Management Services LLC
United States
FIS Management Services, LLC seeks DevOps Engineer Specialists in Jacksonville, FL to work throughout the software development life cycle and perform in a utility capacity to create,…
Added 13 days ago
Systems Engineer
Radiance Technologies, Inc.
Beavercreek, OH
…architectures? The Scientific Analysis Operation is seeking a Systems Engineer to support our government customers’ Model-Based Systems Engineering (MBSE) capabilities. MBSE is a rapidly…
Added 13 days ago
Software Development Engineer, Playback Team
Amazon
Newark, NJ
We are seeking a highly skilled and innovative Software Development Engineer to design, architect, and implement machine learning solutions that drive transformative technological…
Added 13 days ago
SS
Modeling Simulation Software Engineer
Space Systems Integration
El Segundo, CA
- $200,000 to $245,000 USD / year
SSI is seeking a Modeling Simulation Software Engineer for a role in El Segundo, CA.

Space Systems Integration

Modeling Simulation Software Engineer

El Segundo, CA, United States

$200,000 to $245,000 USD / year

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Job details

Pay: $200,000 to $245,000 USD / year
Posting language: English
Posted: Oct 26, 2026

Original job description

Space Systems Integration (SSI) is a fast-growing engineering company that provides aerospace solutions to a variety of government and commercial customers. Our employees are forward-thinking, self-directed individuals who are committed to solving our customers’ technical challenges.

SSI is seeking a Modeling Simulation Software Engineer for a role in El Segundo, CA.

Role and Responsibilities include:

Be a member of a fast-paced multidisciplinary mission operations modeling, simulation, and analysis team informing the United States Space Force acquisition decision process.
Your background and interest in simulation development will be highly valued in developing and testing simulation applications. You'll be integrating mission simulation tools into an automated system-level trade study execution architecture.
You will have a strong hand in defining requirements, specifying designs, and implementing an ever-growing portfolio of space mission operations analysis simulations and trade studies.

Required Qualifications

Bachelors degree in aerospace, astronautics, mathematics, or physics and fourteen (14) years of experience with:
At least one programming language: MATLAB, Python, Java, C#, or C++.
Live, virtual, and/or constructive (LVC) simulation techniques and technologies.
Simulation development experience with simulation environments such as STK, AFSIM, GMAT, or FreeFlyer.
MATLAB and/or Simulink or other simulation scripting languages.
Preparing and delivering presentations and technical demonstrations.
Satellite orbital mechanics & maneuvers, remote sensing, spacecraft launch/command/control, and/or satellite communications.
Equivalent experience with airborne systems is applicable to this role.
Managing files & directories, network file sharing, installing software & licenses, and command line shell (Windows Cmd or Bash).
Active TS clearance with in-scope T5/SSBI is required, along with SCI eligibility and participation in Continuous Evaluation.
Must meet all requirements for SCI and SAP access and be willing to undergo a polygraph examination.
Travel is 10%

Desired Qualifications:

Simulation software development, test, and integration experience in a team environment. Use of Agile methodology and Atlassian Jira are beneficial.
Prior industry experience in aerospace or space & defense.
Systems engineering, with experience defining and executing trade studies. Engineering methodologies such as Model-Based Systems Engineering (MBSE), Multidisciplinary Design Analysis Optimization (MDAO), or Model-Based Design are a plus. Demonstrated knowledge of supporting toolsets such as Cameo Enterprise Architect, Sparx Systems EA, or Ansys ModelCenter would be helpful.
Participation in engineering peer reviews, both as a developer and as a reviewer.
Advanced degree in engineering with emphasis on applications to space launch, orbit propagation, and maneuvering.
Professional certification (e.g., Professional Engineer, INCOSE CSEP, ITEA CTEP, Agile PM/PO, OMG OCSMP, etc.).

Space Systems Integration provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, or any other characteristic protected by federal, state, or local laws.

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More about this job

Skills

The MathWorks MATLAB
Python
Oracle Java
C#
C++
Presentation skills
Remote sensing techniques
Install software
Microsoft Windows
SAP
Software development
Agile
Atlassian JIRA
P.Eng.

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Work requirements

Jobs in the United States