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Founding Engineer
True Talent Solutions Partners
San Francisco, CA
- $180,000 to $220,000 USD / year
Join an early-stage AI software team building tools for leaders across public and private sectors. As a founding engineer, you will work closely with the engineering lead and founding team,…
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Senior/Staff Product Engineer, Applied AI
True Talent Solutions Partners
San Francisco, CA
- $200,000 to $300,000 USD / year
- Improve system performance, reliability, and capacity as product needs evolve.
Added 1 min ago
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Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
System Design & Architecture - System Scalability:
Added 2 mins ago
Systems Engineer I
Robert Half Inc.
Remote, United States
Robert Half is seeking a Systems Engineer I who, as part of a team, will operate key controls and respond to needs within Robert Half's Azure and AWS cloud computing infrastructure with a…
Added 2 mins ago
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IT Technician - Global Yacht Technology
Triton Technical
Tukwila, WA
- $28.85 to $36.06 USD / hour
The Systems Engineer Associate supports the design, implementation, and maintenance of IT infrastructure under the guidance of senior engineers. This role is ideal for someone transitioning…
Added 6 mins ago
Internship - Electrical Engineer
ASML US, LP. (US30)
Wilton, CT
As an Electronic Development Intern, you will be working with teams developing portions of the lithography system and/or associated tooling related to the electronics. Additionally, you…
Added 6 mins ago
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Coop - Mechatronics Engineer (Internship)
ASML US, LP. (US30)
Wilton, CT
- $18 to $48 USD / hour
…mechatronics engineers use MATLAB-based analysis tools to evaluate system dynamics and performance using large sets of measurement…
Added 6 mins ago
Plasma and Laser Physics Engineer
ASML US, LP. (US30)
San Diego, CA
As a Plasma and Laser Physics Engineer within the EUV Source Performance team, you will play a critical role in validating and optimizing EUV source performance to ensure products meet or…
Added 6 mins ago
Senior Electrical Engineer- PCBA Designer
ASML US, LP. (US30)
San Diego, CA
As Senior Electrical Engineer - PCBA Design Engineer, you’ll:
Added 6 mins ago
MD
Electrician
M.C. Dean, Inc
Aldie, VA
- $35.5 to $39.5 USD / hour
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
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Fire Marshal
City of Henderson
Henderson, NV
- $118,374.32 to $177,561.48 USD / year
Nevada PERS (Public Employees' Retirement System)
Added 7 mins ago
Quality Engineer Associate
M.C. Dean, Inc
Manassas, VA
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Engineer 2
M.C. Dean, Inc
Austin, TX
We are seeking an Engineer 2 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers,…
Added 7 mins ago
Project Engineer, Senior
M.C. Dean, Inc
Atlanta, GA
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Telecommunications Engineer 4 - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
The engineer owns the quality and constructibility of the team's deliverables: site survey reports, site installation plans, equipment lists, bills of materials, drawings, specifications,…
Added 7 mins ago
Program Support Specialist 2
M.C. Dean, Inc
Tysons, VA
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Project Leader 1
M.C. Dean, Inc
Bowling Green, OH
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Electrician
M.C. Dean, Inc
Burlington, TX
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Electrician
M.C. Dean, Inc
Dallas, TX
…Tysons, Virginia and employs more than 9,000 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms…
Added 7 mins ago
Deputy Node Lead
Panthalassa
Portland, OR
…maintenance or intervention. The node is a first-of-its-kind system integrating mechanical structures, electrical power, embedded controls, software, data, operations, and ocean deployment…
Added 8 mins ago
Lead Ceramic Engineer – Production Quality
Global Nuclear Fuel-Americas, LLC
United States
The Global Nuclear Fuels (GNF) Fuel Manufacturing Operation (FMO) Ceramic Engineer – Production Quality is responsible for multiple quality activities to support the production of ceramic…
Added 8 mins ago
Industrial Engineer 1- Lead Materials Engineer 1
GE Vernova International LLC
United States
This role will lead strategic projects focused on material system designs to improve material flow, reduce waste, and improve manufacturing efficiency. This role will require both strong…
Added 8 mins ago
Forward Deployed Engineer
Accellor
Remote, United States
…technology-agnostic architectures to ensure faster time-to-value and seamless system interoperability. From initial strategy to full-scale deployment, we build intelligent, connected…
Added 11 mins ago
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Junior System Engineer
AMAX
Fremont, CA
- $80,000 to $95,000 USD / year
We are seeking a highly motivated System Engineer to join our Engineering team. This role will focus on the design, deployment, validation, and troubleshooting of high-performance computing…
Added 15 mins ago
Network Engineer Level III
BizFirst
Kearneysville, WV
BizFirst is assisting our client with recruiting a Network Engineer Level III for a mission-focused customer in Kearneysville, West Virginia. You will install, maintain, troubleshoot,…

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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