Jobs in the United States

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Added 4 mins ago
RTL Design Engineer, TPU
Google
Sunnyvale, CA
Experience interacting with software, system hardware, and other cross-functional teams.
Added 5 mins ago
Entry- to Mid-Level Model-Based Systems Engineer
Arcfield
Middletown, RI
Arcfield is looking for an aspiring, enthusiastic Systems Engineer to support a dynamic team providing systems engineering and software development support for critical submarine systems…
Added 11 mins ago
Electrical Design & Verification Engineer (DVE), Leo Optical ISL Development
Amazon Kuiper Manufacturing Enterprises LLC
Redmond, WA
The Design Verification Engineer will be a member of the Avionics team, focusing on the design verification of the various electrical functions of high-performance communication systems.
Added 15 mins ago
Engineer Senior – Spacecraft Mechanical Design
BAE Systems
Boulder, CO
Participate in the mechanical design effort for new spacecraft structures from proposal phase through award, detailed design, fabrication, assembly, test, and requirements verification.
Added 21 mins ago
Senior Electrical Engineer (Power & Mixed-Signal)
Anduril Industries
Costa Mesa, CA
Anduril is seeking an experienced Electrical Engineer based in Costa Mesa, CA to develop and test cutting edge electronics for avionics propulsion systems. We are looking for a self-starter…
Added 27 mins ago
Thermal Analysis Engineer III
Axiom Space
United States
…team is seeking a bold and dynamic Senior Thermal Analysis Engineer (Level III) who is fueled by high accountability, execution horsepower, and driven to understand our world,…
Added 28 mins ago
Senior Software Engineer (Runtimes)
HeroDevs, Inc.
Remote, United States
We are seeking a Senior Software Engineer to join our Never-Ending Support (NES) team. This role is specifically focused on developing and proving out new product lines in our runtimes. You…
Added 28 mins ago
OC
Associate Engineer (Electrical)
Orange County Sanitation District
Fountain Valley, CA
- $134,950.4 to $164,028.8 USD / year
OC San is currently looking to fill the role of an Associate Engineer (Electrical).
Added 32 mins ago
A
Systems Engineer
Actalent
Saint Paul, MN
- $65 to $95 USD / hour
Job Title: Senior Systems Engineer Job DescriptionThe Senior Systems Engineer will provide technical leadership for the design, development, and optimization of advanced hypersonic test…
Added 32 mins ago
A
Electrical Test Engineer
Actalent
Golden Valley, MN
- $45 to $65 USD / hour
Senior Test Engineer We are seeking a Senior Test Engineer to lead system verification, reliability validation, and test strategy development for complex robotic and electro-mechanical…
Added 32 mins ago
A
Test Engineer
Actalent
Colorado Springs, CO
- $55 to $75 USD / hour
Job Title: Test Engineer Ground-Based Radar SystemsJob DescriptionThis role focuses on designing, preparing, and executing comprehensive subsystem and enterprise-level test plans and…
Added 42 mins ago
DD
Test Engineer
Data Device Corporation
Bohemia, NY
- $80,000 to $105,000 USD / year
The Test Engineer designs, develops, integrates, maintains, troubleshoots, and modernizes production test equipment, ranging from manual fixtures to complex automated test systems. These…
Added 45 mins ago
CS
26-124 Research Data Engineer/Statistical Programmer Part-time
Colorado State University
Remote, United States
- Part-time
…Survey (QRS) project seeks a part-time (70% FTE) Research Data Engineer or Statistical Programmer to develop and maintain a reproducible data-management system for surveys of public…
Added 45 mins ago
Senior Design Engineer, TVC
Ursa Major
Berthoud, CO
Maintain clear, organized technical documentation, including requirements, design reviews, test plans and reports, and verification/validation evidence.
Added 46 mins ago
Lead ASIC Modem Design Engineer, Satellite Communication
Amazon Kuiper Manufacturing Enterprises LLC
Sunnyvale, CA · San Diego, CA
Lead ASIC Modem Design Engineer, Satellite Communication role within a high performance ASIC Modem design team. This team is using industry leading methodologies to develop proprietary…
Added 46 mins ago
Principal Radar Systems Engineer
STR
Remote, United States
…into users’ hands and is seeking a Principal Radar Systems Engineer to support/lead the architecting, design, development, and implementation of radar systems that meet challenging customer…
Added 50 mins ago
Cybersecurity Systems Engineer III
Data Intelligence LLC
Moorestown, NJ
Data Intelligence, LLC (DI) is seeking a Cybersecurity Systems Engineer III to support the development and sustainment of the U.S. Navy's Aegis Weapon System in Moorestown, NJ.
Added 52 mins ago
R&D System Engineer
SEDAA
Plymouth, MN
Looking for a senior engineer for R&D systems engineering in Electrophysiology division. Prior experience in medical devices and/or systems engineering a plus, especially prior experience…
Added 54 mins ago
Chip Simulation Lead
Etched
San Jose, CA
Etched is building hardware for frontier intelligence. We co-design chips, racks, software, and manufacturing to deliver best-in-class throughput and latency across both prefill and decode…
Added 55 mins ago
DH
Staff Software Engineer
Develop Health
San Francisco Bay Area, CA
- $250,000 to $300,000 USD / year
We're looking for a Staff Software Engineer who wants to set the direction for AI products that do real work in healthcare, and still write a lot of the code. You'll lead projects that span…
Added 55 mins ago
DH
Senior Full Stack Engineer
Develop Health
San Francisco, CA
- $200,000 to $250,000 USD / year
…automating complex, manual healthcare processes - like benefit verification and prior authorization - we've been growing rapidly and over the past couple of years have helped over 3.6…
Added 59 mins ago
Radar Engineer/Scientist Senior
V2X
Dahlgren, VA
Support the development and execution of systems engineering plans from requirements identification through design verification. Plan and execute engineering strategies in accordance with…
Added 1 hour ago
Design Engineer
Actalent
Albany, NY
Job Title: Design Engineer IIJob DescriptionThe Design Engineer II supports mid-level product design and validation for polypropylene venting systems and OEM components, translating…
Added 1 hour ago
A
Electrical Engineer
Actalent
Weston, FL
- $45 to $81.5 USD / hour
DescriptionAs an Electrical Engineer, you will support the design and development of Robotic Systems. Plans and implements the design, manufacture, installation and/or maintenance of…
Added 1 hour ago
Quality Engineer II
Relativity Space
Stennis Space Center, MS
…the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in…

Command Holdings

Senior Software Engineer

N/A, NM, United States

Expected salary range: $130,000 - $170,000

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Job details

Pay: Expected salary range: $130,000 - $170,000
Experience: Minimum of 5 years of experience in computational modeling, software development, and software documentation, including legacy software and systems.
Posting language: English
Posted: Nov 2, 2026

Original job description

CeLeen, an operating firm of Command Holdings, is seeking a Senior Software Engineer to support a potential contract within the Department of Energy (DOE).

The Senior Software Engineer will provide virtual scientific computing support sustaining a mission-critical computational framework for a Carlsbad, New Mexico site. This role will provide expertise in computer science methods and strong written communication skills to support an existing computational framework. The individual will support sustainment, modernization, performance optimization, HPC readiness, and transition support for evolving three-dimensional modeling capabilities, including software development, analysis, refactoring, verification and validation, documentation, performance improvement, platform portability, workflow reproducibility, and migration readiness for Linux-based computing environments.

Expected salary range: $130,000 - $170,000

Work Environment:

Ability to sit at a computer terminal for an extended period of time.
Ability to work in confined areas.

Physical Demands:

While performing the responsibilities of the job, the employee is required to sit, stand, talk, and hear.
Employee is often required to sit and use their hands and fingers to operate a computer.
Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Travel:

0-10% / Occasional travel.

CeLeen, an operating firm of Command Holdings, is a tribally-owned firm providing management consulting services to U.S. government agencies.

Pursuant to PL 93-638, as amended, preference will be given to qualified Native Americans and spouses in all phases of employment.

At CeLeen, our employees are the embodiment of our success as a firm. Our team is comprised of a tenacious group of professionals located across the globe. It includes military veterans and spouses of active duty troops, former federal employees, policy experts, academics, attorneys, and technical and business experts, all of whom share a strong work ethic and the skills to succeed in both collaborative and independent environments. CeLeen is invested in the long-term success of both our clients and colleagues for the right reasons. Our dedication to putting good government into practice is underpinned by a merit-based culture that measures success by productivity and credibility.

CeLeen will provide reasonable accommodations to applicants who are unable to utilize our online application system due to a disability. Please send your request to the Human Resources Team.

CeLeen is committed to equal employment opportunity based on merit. We recruit, employ, train, compensate, and promote without regard to race, religion, color, national origin, age, sex, disability, protected veteran status, or any other basis protected by applicable federal, state, or local law, and in accordance with EO 14173 and Federal Employment Laws: Equal Employment Opportunity and Employee Polygraph Protection Act.

CeLeen's Affirmative Action Program is available to any employee or applicant for employment for inspection upon request, to the extent required by federal regulations. The Affirmative Action Program can be accessed during normal business hours by making an appointment with the Human Resources Team.

Basic Requirements

Master's degree in computer science, engineering, or a related discipline such as environmental science, mathematics, or physics //OR// Bachelor's degree in a related discipline with 10 years of relevant experience.
Ability to obtain and maintain a DOE Q clearance.
Minimum of 5 years of experience in computational modeling, software development, and software documentation, including legacy software and systems.
Experience in one or more technical and business domains.
Experience programming in mixed-language scientific software environments, including Fortran, Python, and C and/or C++.
Experience working in GNU/Linux or equivalent Linux-based development environments and associated build, compilation, and debugging toolchains.
Experience with high-performance computing (HPC) systems.
Experience using HPC job schedulers, such as Slurm or equivalent workload management systems.
Must be able to demonstrate relevant project experience within the past five years.
Must have hands-on experience in project completion involving computational modeling and software development performed in a regulated, safety-critical, or other high-consequence computational environment, consistent with the type of experience required under this role.
Exceptional customer relationship management and team building skills.
Advanced organizational and leadership skills.
Outstanding communication skills, influencing abilities, and client focus.
Professional proficiency in English is required.
Demonstrated proficiency in using all Microsoft Office applications.
Must be a U.S. Citizen.
Ability to access federal facilities in compliance with Real ID. More information about Real ID can be found here: https://www.dhs.gov/real-id/about-real-id and at https://www.tsa.gov/travel/security-screening/identification.
Applicants must be currently authorized to work in the United States on a full-time basis. CeLeen will not sponsor applicants for work visas for this position.

Preferred Qualifications

Master's Degree.
Current, active DOE Q clearance.

Benefits

CeLeen offers a competitive benefits plan including:

Health, Dental, and Vision Insurance
Flexible Spending Accounts
Life and Disability Insurance
401(k)
Paid Time Off
Paid Holidays
Employee Assistance Program
Pet Insurance

*Eligibility requirements apply

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