Showing page 1 of 38 (Total listings: 753)

Senior Fortran Compiler Engineer

NVIDIA ✓ Verified
Direct Apply
Hillsboro, Washington County
Apr 3, 2026

NVIDIA’s HPC compiler group wants to hire a Fortran compiler developer to join the team building one of the world's most important optimizing compilers. If you want a front-row seat to state of the art compiler development for high-performance computing, then we want you! We're implementing Flang with a keen interest in high-level optimization of Fortran, OpenACC, and OpenMP. What you'll be doing: Solve difficult problems at the intersection of compilers, programming models, and high-performanc…

Senior Propulsion Engineer

Astrobotic Technology Inc ✓ Verified
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Pittsburgh, Allegheny County
Jul 10, 2026

Job Description Job Description The Senior Propulsion Engineer will be responsible for working directly on all aspects of the propulsion systems, from initial component and system sizing through specification, procurement, integration, test, and mission operations. You will regularly report to the Propulsion Lead on progress, as part of a joint propulsion team including the Mojave office. Job Responsibilities: Lead and support the design of new propulsion systems for spacecraft Coordinate betwe…

4309 Software Developer with Security Clearance

Procession Systems ✓ Verified
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Chantilly, Fairfax County
May 25, 2026

OVERVIEW: We are seeking a highly skilled Software Developer with strong experience in Fortran and algorithm development to support mission-critical systems. The ideal candidate will work in a secure environment, contributing to high-performance computational solutions, data processing pipelines, and next-generation analytic capabilities. GENERAL DUTIES: * Design, develop, maintain, and optimize software solutions in support of scientific, analytical, and geospatial applications. * Develop and …

Software Engineer with Security Clearance

Optimum Governmental Solutions LLC ✓ Verified
Direct Apply
Rockrimmon, El Paso County
Jul 6, 2026

Seeking a mid-Senior Software Engineer with solid mathematics and/or physics background and experience in some combination of modeling and simulation, Fortran and/or C languages, Python, Korn, BASH, and/or Perl scripting, compilers, software benchmarking, system analysis, algorithm and/or software design. Basic Qualifications · Bachelor's degree in STEM related discipline and a minimum of 10 years of professional level experience · Around 5 years of experience developing and using modeling and …

Senior/Lead Software Engineer (MFC & C++)

Luxoft ✓ Verified
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Houston, Houston County
Jul 23, 2026

Job Description Project Description: \n \n Developed product is the leading software system in Energy domain covering all aspects of Oil & Gas production from geological exploration to optimization of ongoing production. Our technology solution helps geologists and geophysicists to research, visualize and interpret large volumes of geological data. \n Work supposes close cooperation with Customer team located in Houston and following Agile principles. \n Our team is senior, supportive and frien…

HPC Linux Software Engineer with Security Clearance

ClearanceJobs Workforce Solutions ✓ Verified
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Stratmoor Hills, El Paso County
May 25, 2026

Senior Software Engineer – HPC/Linux Environment (TS/SCI with CI Polygraph Required) Location: Colorado Springs, Colorado We are seeking an experienced Software Engineer to support a classified High-Performance Computing (HPC) research program focused on advanced modeling and simulation initiatives. This individual will work directly with technical users, scientists, engineers, and site personnel to support mission-critical software applications and computational workflows in a secure Linux-bas…

Senior Software Simulation Engineer with Security Clearance

By Light Professional IT Services ✓ Verified
Direct Apply
Chantilly, Fairfax County
May 25, 2026

Veraxx Engineering Corporation, a By Light Company is an engineering services company supplying modeling, simulation, and training solutions. Services include hardware, software, and system engineering, requirements assessments, system development, integration, testing, documentation, and customer support services. Veraxx has a high level of expertise in flight simulation hardware and software development, as well as computer architecture, tactical environments, interoperability (HLA/DIS), avio…

Scientist - Computational Physics

University of Rochester ✓ Verified
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Rochester, Sangamon County
Jul 23, 2026

Job Description Scientist – Computational Physics | Inertial Confinement Fusion | High Energy Density Physics \n \n Location: Rochester, NY | University of Rochester – Laboratory for Laser Energetics (LLE) \n Are you passionate about advancing the frontiers of computational physics, plasma physics, and inertial confinement fusion (ICF)? The University of Rochester's Laboratory for Laser Energetics (LLE) is seeking an exceptional Scientist to join the Integrated Modeling Group within our Theory …

Sr S/W Staff Engineer TS/SCI CI Poly with Security Clearance

Anonymous Employer ✓ Verified
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Stratmoor Hills, El Paso County
May 25, 2026

Basic Qualifications • Bachelor's degree in STEM related discipline and a minimum of 10 years of professional level experience • Around 5 years of experience developing and using modeling and simulation software in heterogeneous, multi-platform environments • Working with HPC users workflow for mod/sim problems and GUIs • Knowledge of High Performance Computing (HPC) environment and related technologies • Demonstrated proficiency with Fortran, C, and/or C++ • Demonstrated proficiency with BASH …

Research Scientist with Security Clearance

Amentum ✓ Verified
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Washington, D.C., US
Jul 15, 2026

We are seeking a highly adaptable and self-directed Signal Processing Scientist to join our dynamic research and development team. This role is designed for a creative, practical problem-solver who thrives on breadth and variety, rather than being confined to a single narrow project. In this role, you will bridge the gap between advanced academic research and real-world operational impact. You will leverage your creative instincts and deep technical expertise to translate complex mathematical m…

Senior Software Engineer with Security Clearance

SAIC ✓ Verified
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Stratmoor Hills, El Paso County
Jun 17, 2026

Description SAIC seeks an experienced and energetic Senior to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Software Engineer is responsible for responsive and coherent planning, develo…

GNC Senior Performance Engineer - Dallas, TX or Orlando, FL with Security Clearance

Lockheed Martin ✓ Verified
Direct Apply
Grand Prairie, Dallas
Jul 6, 2026

Job Number 731083BR Description:Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration, and sustainment of advanced technology systems, products, and services. Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. We are experiencing growth and looking for a Sr GNC Engineer to join our team in Orlando, FL OR Da…

Principal Software Engineer with Security Clearance

SAIC ✓ Verified
Direct Apply
Stratmoor Hills, El Paso County
Jun 17, 2026

Description SAIC seeks a highly experienced and energetic Principal Software Engineerto support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Software Engineer is responsible for responsive and…

Senior Software Engineer with Security Clearance

SAIC ✓ Verified
Direct Apply
Stratmoor Hills, El Paso County
Jul 16, 2026

Description SAIC seeks an experienced and energetic Software Engineer to support the US Space Force, Space Systems Command, in performing operational maintenance and sustainment of ground-based radars critical to US and Allied strategic missile surveillance, warning, defense, and space surveillance missions in Colorado Springs, Colorado. In support of the government customer, the SAIC Program Manager, and the Chief Engineer, the Software Engineer is responsible for responsive and coherent plann…

Software Assurance Evaluation Engineer with Security Clearance

MANTECH ✓ Verified
Direct Apply
Harmans, Anne Arundel County
Jul 7, 2026

MANTECH seeks a motivated, career and customer-oriented Software Assurance Evaluation Engineer to join our team in Hanover, MD. The Software Assurance Evaluation Engineer will leverage their strong technical background and knowledge to support software assurance and security initiatives for a mission-critical organization within the Intelligence Community, focusing on secure and reliable data dissemination through rigorous source code analysis. Responsibilities include but are not limited to: *…

Software Assurance Evaluation Engineer with Security Clearance

MANTECH ✓ Verified
Direct Apply
Harmans, Anne Arundel County
Jul 7, 2026

MANTECH seeks a motivated, career and customer-oriented Software Assurance Evaluation Engineer to join our team in Hanover, MD. The Software Assurance Evaluation Engineer will leverage their strong technical background and knowledge to support software assurance and security initiatives for a mission-critical organization within the Intelligence Community, focusing on secure and reliable data dissemination through rigorous source code analysis. Responsibilities include but are not limited to: *…

Senior Software Engineer

Apex Systems ✓ Verified
Direct Apply
Trammells, Harris County
Jun 30, 2026

Job: 3040283 Job Description: Senior Software Engineer Location: Houston, Texas (Hybrid, potential for Remote) Role Overview Our organization is seeking a Senior Software Engineer for a newly formed team focused on modernizing complex legacy applications. This role is pivotal in transforming monolithic desktop applications into scalable, API-driven, microservices-based architectures. The ideal candidate will leverage AI-assisted development tools to reverse-engineer, refactor, and rebuild criti…

Assistant Scientist

University of Rochester ✓ Verified
Direct Apply
Rochester, Monroe County
Jul 21, 2026

University of Rochester: Office of the Provost: Academic Center: LLE-Laboratory for Laser Energ Salary Range or Pay Grade $82,500-110,000 Description POSITION SUMMARY: This position is an appointment at the University of Rochester's Laboratory for Laser Energetics (LLE). The Integrated Modeling Group in the Theory Division of the LLE is seeking an outstanding computational and theoretical scientist to conduct rigorous, high-impact research in radiation-hydrodynamic modeling and development rele…

Senior Radar Modeling and Simulation Analyst

Booz Allen Hamilton ✓ Verified
Direct Apply
Beaver Creek, Greene County
May 13, 2026

Job Number: R0239961 Radar Modeling and Simulation Analyst, Senior The Opportunity: Your engineering skills and determination are needed to develop the cutting-edge technology used to support the warfighter and maintain national security. Join an energetic team whose day-to-day mission involves breaking down the Air Force's toughest challenges and communicating the essential results of that work to their leadership. As an electrical engineer, you understand the power behind complex systems. Tha…

Radar Modeling and Simulation Analyst

Booz Allen Hamilton ✓ Verified
Direct Apply
Beaver Creek, Greene County
Jun 27, 2026

Job Number: R0243235 Radar Modeling and Simulation Analyst The Opportunity: Your engineering skills and determination are needed to develop the cutting-edge technology used to support the warfighter and maintain national security. Join an energetic team whose day-to-day mission involves breaking down the Air Force's toughest challenges and communicating the essential results of that work to their leadership. As an electrical engineer, you understand the power behind complex systems. That knowle…

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