1,779 Results for

Engineer Scientist Jobs in Washington, DC

Jobs

Alexandria, VA

p>CALIBRE Systems inc, an employee-owned mission focused solutions and digital transformation company, is looking to hire a Lead Data Scientist to provide senior-level technical and management leadership in support of a federal civilian government agency. Interface with senior government leaders, contracting representatives, program managers, technical teams, and other stakeholders to communicate progress, resolve issues, negotiate priorities, and support informed decision-making.

Today

Arlington, VA

$131,300–$237,350

June 4, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

2 days ago

Fairfax, VA

$118,987–$169,982
Full time

HII - Mission Technologies is currently seeking an Intermediate-level Data Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform data integration and analytics environment designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Collaborates with platform, infrastructure, and data governance teams to incorporate architectural updates, security changes, and tool enhancements into ongoing operations, strengthening stability and mission value across all War Data Platform (WDP) Core Integration enclaves.

30+ days ago

Fairfax, VA

$118,987–$169,982
Full time

HII - Mission Technologies is currently seeking an Intermediate-level Analytic Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Builds analytic transformations, query models, and feature-ready datasets using Databricks, Spark, Python, SQL, and Apache Airflow to enable mission analytics for Combatant Commands, Joint Staff elements, and interagency partners.

30+ days ago

Fairfax, VA

$94,750–$135,357
Full time

HII - Mission Technologies is currently seeking a Junior BI Developer/Analyst to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Develops business intelligence components supporting War Data Platform (WDP) Core Integration data operations by preparing structured datasets, building baseline dashboards, and conducting routine analytic validation across Unclassified and NIPR, Secret and SIPR, and Top Secret and JWICS enclaves.

30+ days ago

Alexandria, VA

$118,987–$160,000
Full time

This individual will lead DLA‑SM’s analytical efforts to develop government‑wide priorities for critical material risk mitigation while also modernizing a Fortran‑based econometric model currently maintained on a mainframe at IDA (Institute for Denfense Analyses.) 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in realted field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

30+ days ago

Washington, DC

$108,606–$150,000
Full time

This role is not focused on routine International Telecommunication Union (ITU) filings; rather, it requires a candidate capable of applying deep technical knowledge of RF systems to influence emerging rules, policies, and international regulations in ways that advance U.S. Government objectives at ITU Working Party (WP) meetings and ultimately at the World Radiocommunication Conference (WRC). RF Engineer 4 - 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in realted field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Columbia, MD

$72,209–$175,204
Full time

System design and software implementation of proof-of-concept prototypes incorporating a variety of engineering disciplines: control theory, software development, signal/video processing, pattern recognition, machine learning, artificial intelligence, high performance computing, applied mathematics, network/web services, and visualization. Senior Software Engineer (Software Engineer 3): 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

30+ days ago

Arlington, VA

$177,815–$185,000
Full time

HII's Mission Technologies is seeking a Senior RF Spectrum Policy Engineer to provide direct support to our Government customer, the Department of the Navy Chief Information Office in the area of national and international spectrum regulations, national and international policy, and registration and coordination. ExperienceRF Engineer 2 - 2 years relevant experience with Bachelors in related field; 0 years experience with Masters in related field; or High School Diploma or equivalent and 6 years relevant experience.

30+ days ago

Annapolis Junction, MD

$105,000–$175,000
Full time

WS is seeking multiple Software Engineers (Levels 0–2) to design, develop, maintain, and enhance complex software systems, including data‑intensive analytics, novel algorithms, large‑scale data processing, real‑time applications, and business information systems. They will troubleshoot and resolve software issues, apply development and design methodologies appropriate to the environment, and support system‑level design by evaluating hardware/software tradeoffs, promoting software reuse, and assessing COTS/GOTS solutions.

30+ days ago

Fort Meade, MD

Full time

The Warfare Systems team is currently seeking a Process Engineer II in support of an exciting new effort supporting one of our clients that is responsible for unifying the direction of cyberspace operations, strengthening DoD cyberspace capabilities, and integrating and bolstering DoD's cyber expertise. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

30+ days ago

Annapolis Junction, MD

$128,887–$175,000
Full time

9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. HII Mission Technologies has a need for a Cyber Engineer who will be responsible for guiding systems through the full Risk Management Framework (RMF) lifecycle and ensuring all security controls are properly designed, implemented, documented, and assessed.

30+ days ago

Fairfax, VA

$128,887–$184,124
Full time

HII - Mission Technologies is currently seeking a Senior Zero Trust Compliance Officer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 10 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Reston, VA

$100,000–$150,000
Full time

This role is not focused on routine International Telecommunication Union (ITU) filings; rather, it requires a candidate capable of applying deep technical knowledge of satellite and ground systems to influence emerging rules, policies, and international regulations in ways that advance U.S. Government objectives at ITU Working Party (WP) meetings and ultimately at the World Radiocommunication Conference (WRC). The ideal candidate will be comfortable writing highly technical and politically sensitive documents, defending U.S. positions in domestic and international forums—ultimately shaping the regulatory landscape for current and future satellite systems.

30+ days ago

Fairfax, VA

$128,887–$184,124
Full time

HII - Mission Technologies is currently seeking a SME Enterprise Vulernatiblity Management Lead to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Fairfax, VA

$149,168–$184,124
Full time

HII - Mission Technologies is currently seeking Senior-level IaC Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platformdesigned to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • Designs and implements automated cloud architectures using Terraform, Ansible, and CloudFormation to support system administration, release management, cybersecurity controls, and continuous integration pipelines across multiple operational enclaves.

30+ days ago

Fairfax, VA

$153,605–$184,124
Full time

HII - Mission Technologies is currently seeking a SME Information System Security Manager (ISSM) to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience.

30+ days ago

Fairfax, VA

$161,809–$200,000
Full time

15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience. Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals.

30+ days ago

Fairfax, VA

$104,336–$149,052
Full time

HII - Mission Technologies is currently seeking Intermediate-level IaC Engineer to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platformdesigned to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. "• 5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

30+ days ago

Fort Belvoir, VA

$102,160–$220,238
Full time

Excellent analytical, technical, communication, planning, presentation, and organizational skills with the ability to articulate new ideas and concepts to technical and nontechnical audiences, internal teams, senior leaders, vendors, partners, customers, and stakeholders. Will analyze site survey reports, recommend network modernization upgrades, craft network architectures, and assist operations leads in creating deployment plans and executing capability roll outs.

30+ days ago

Fairfax, VA

$128,887–$184,124
Full time

HII - Mission Technologies is currently seeking a Senior Information System Security Officer (ISSO) to work out of Fairfax, VA in support of the DoD/DoW Advana War Data Platform designed to aggregate operational, intelligence, logistics, and sensor data from multiple domains, enable Joint All-Domain Command and Control (JADC2) by providing a common data fabric, and support AI/ML applications for predictive analytics, targeting, and mission planning. • 10 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Annapolis Junction, MD

$133,555–$175,000
Full time

7 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in realted field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 12 years relevant experience. HII, Mission Technologies has a need for an AI/ML Engineer who will be responsible for designing advanced model architectures, developing machine learning pipelines, and optimizing AI systems for operational deployment in government and mission critical environments.

30+ days ago

Arlington, VA

Remote

$80,000–$150,000
Full time

Determines computer user needs; analyzes system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls; prepares operating instructions; designs and develops compilers and assemblers, utility programs, and operating systems. 9 years relevant experience with Bachelors in related field; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD in related field; or High School Diploma or equivalent and 13 years relevant experience.

30+ days ago

Springfield, VA

$71,000–$150,000
Full time

Systems Engineer 4: 9+ years relevant experience with Bachelors; 7 years relevant experience with Masters in related field; 4 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 13 years relevant experience. Systems Engineer 3: 5+ years relevant experience with Bachelors; 3 years relevant experience with Masters in related field; 0 years experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience.

30+ days ago

Springfield, VA

$55,000–$135,000
Full time

Systems Administrator 4: 10+ years relevant experience with Bachelors; 8 years relevant experience with Masters in related field; or High School Diploma or equivalent and 14 years relevant experience. Systems Administrator 3: 6+ years relevant experience with Bachelors; 4 years relevant experience with Masters in related field; or High School Diploma or equivalent and 10 years relevant experience.

30+ days ago

Arlington, VA

$62,079–$88,000
Full time

We are seeking a detail-oriented and highly organized QA Policy & Strategy Analyst to support spectrum band studies through comprehensive paperwork preparation, documentation management, and administrative coordination. Our capabilities range from C5ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class.

30+ days ago

McLean, VA

$143,088–$180,000
Full time

HII – Mission Technologies is seeking a highly experienced and mission‑driven Mission Operations Lead to oversee the execution of complex, globally dispersed technical operations across Department of Defense (DoD) and U.S. Government programs. Responsibilities include leading subcontractor performance, managing technology fielding and sustainment activities, driving operational alignment with mission needs, and proactively mitigating global supply chain and mission risks.

30+ days ago

Columbia, MD

$83,239–$125,000
Full time

Our workforce includes skilled tradespeople; artificial intelligence, machine learning (AI/ML) experts; engineers; technologists; scientists; logistics experts; and business administration professionals. When extending an offer, HII's Mission Technologies division takes a variety of factors into consideration which include, but are not limited to, the role's function and a candidate's education or training, work experience, and key skills.

30+ days ago

Seeking qualified professionals to support Federal Aviation Administration (FAA) Aviation Safety (AVS) programs through engineering, technical, and analytical support and mission execution activities addressing complex system, safety, and operational challenges across the National Airspace System (NAS). Master's degree may be waived with a bachelor's degree in psychology, industrial or organizational psychology, engineering, science or other technical or analytical related fields and seventeen years of experience in performing the above duties or aviation-related experience.

21 days ago

Arlington, VA

ul>

Lead multi-media environmental permitting efforts for the life-cycle of a project from initial due diligence, through preparation of applications, strategic compliance support throughout construction and ongoing operational compliance;

Interact with and build relationships with clients, contractors/subcontractors, and internal practice leaders with a strong commitment to customer service and responsiveness to client needs;

Deliver on multiple fast-paced projects and tasks within specific budgets, schedules, and deadlines;

Prepare permit applications and compliance programs for multiple environmental media, including air, wastewater, stormwater, waste, spill prevention and storage tanks, EPCRA (Tier II, TRI);

Perform multi-media environmental compliance audits, gap assessments, inspections, and program reviews;

Develop and support implementation and management of various monitoring and spill prevention and contingency plans/programs (SPCC, FRP, SPR, SWPPP, Hazardous Waste Contingency Plans, TOMP, Slug Control, etc.);

Provide direct oversight and management of junior staff for specific project assignments;

Lead and/or assist in the preparation of proposals including development of scope and costs;

Manage project budgets and assist in invoicing as project or task manager;

Conduct field support at client sites including routine site inspections, collection of samples, and on-call support;

Train and mentor junior staff; and. CHMM) is strongly preferred;

40-hour OSHA HAZWOPER certification preferred;

Ability to effectively manage multiple clients and projects;

Ability to work well on multi-disciplinary projects;

Willingness and ability to maintain and develop existing client relationships as well as identify new opportunities is strongly desired;

Basic understanding of common industrial activities and the relationships among environmental media /regulations (e.g.

30+ days ago

$190,000–$200,000 / year

Conduct independent technical and programmatic assessments / evaluations of: NNSA's nuclear weapons electronic product realization (PR) information and data management applications/ systems Systems utilized in the NNSA nuclear weapons design-to- production environment PRIDE's NSE transformational achievements/impacts Warhead Life Extension Program (LEP) product realization information technology advancements Return on Investments (ROI) supporting long-term Stockpile Stewardship Contributions to PR systems/applications technical planning, information management objectives Classified Need-to-Know models-based engineering environment and Enterprise Architecture decision analyses Cybersecurity, supply chain, and other risks our digital program poses to the mission Progress towards Models-based Enterprise (MBE), Models-based Definition (MBD) and Digital Engineering (DE) Minimum Qualifications: Current, active DOE Q Clearance/Top Secret Clearance with ability to acquire SCI. The company offers technical, engineering, and programmatic support expertise to a host of U.S. federal and international agencies, including, but not limited to, the Department of Energy, the Department of Defense, the Department of Homeland Security, the Department of Justice, INTERPOL, and the International Atomic Energy Agency.

30+ days ago

McLean, VA

$147,200–$184,000 / year

Your future colleagues are a collegial team of energy and environmental engineers, material scientists, systems engineers, mechanical engineers, electrical engineers, chemists, physicists, and civil engineers who work across MITRE's diverse sponsors and partners.

Department Summary:

MITRE Lab's Energy, Environmental, Material and Chemical Sciences is seeking a senior engineer with expertise in power and energy technologies to work in a dynamic analytical environment focused on solving our customers energy technology and resilience challenges.

14 days ago

Laurel, MD

As an AOS Sector Senior Administrative Assistant you will: Independently manage the flow of people and information in support of four Sector-level chief engineers and scientists; primarily responsible for coordinating and expediting activities for a driven set of leaders in a fast-paced environment, executing day-to-day activities. Initiative and persistence in pursuing administrative needs, meeting quick turnaround demands, and resolving problems with a sense of urgency and demonstrated capability to anticipate, prioritize and expedite numerous tasks from multiple sources.

30 days ago

Laurel, MD

We seek to drive technology advances in a variety of applications including remote sensing, rf photonics, optical communications, optical system design, high energy laser systems, applied spectroscopy, optical materials characterization, and advanced photonic technologies (including leveraging FPGA and digital design tools for photonic-based systems).

Are interested in exploring a career in one or more of the following areas: Remote Sensing, Optical Communications, Optical System Design, High Energy Laser systems and technologies, Applied Spectroscopy, Optical Materials Characterization, or Advanced Photonics, FPGA development or digital design.

30+ days ago

Laurel, Maryland

30+ days ago

$128,473–$205,519 / year

p>FOREIGN EDUCATION: Applicants who have completed part or all of their education outside of the U.S. must have their foreign education evaluated by an accredited organization to ensure that the foreign education is comparable to education received in accredited educational institutions in the U.S. A written evaluation of any foreign education must be provided with your application in response to this vacancy announcement or be received by the closing date of this announcement.

Certain Military Spouses: Permanent Change of Station (PCS) orders authorizing you to accompany the Military member to the new duty permanent station; OR verification of the members 100% disability (VA Letter); and/or verification of the members death while on active duty (DD-1300 and Death Certificate) AND verification of the marriage to the service member (i.e., a marriage license or other legal documentation verifying marriage).

14 days ago

Washington, DC

$102,415–$158,322 / year

Specified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A. Related curriculum -- Successful completion of a curriculum leading to a bachelors degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelors degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. As a Interdisciplinary General Engineer Physical Scientist, you will provide professional engineering or physical science expertise and support to DOE programs, projects or initiatives whose mission or responsibilities include a combination of engineering and physical science work that supports the DOE mission to maintain US preeminence in engineering and scientific technology research and applications.

26 days ago

Washington, DC

$169,279–$197,200 / year

li>Specified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A.

Related curriculum -- Successful completion of a curriculum leading to a bachelors degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelors degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance.

To apply for this position, you MUST provide a complete application package which includes:

Your RESUME showing all relevant work experience (paid and unpaid) including: duties performed; full name and address of the each employer; start and end dates (month/day/year); work schedule (part-time, full-time, number of hours if intermittent); salary; and any completed education and training (program title, subject area, number of hours completed, and completion date).

7 days ago

$127,141–$197,200 / year

p>1301- Degree: physical science, engineering, or mathematics that included 24 semester hours in physical science and/or related engineering science such as mechanics, dynamics, properties of materials, and electronics OR Combination of education and experience -- education equivalent to one of the majors shown in A above that included at least 24 semester hours in physical science and/or related engineering science, plus appropriate experience or additional education.

14 days ago

Chantilly, VA

$154,050–$278,475 / year

Bachelors degree in Computer Science, Data Science, Software Engineering, Mathematics, Engineering, or related technical field with 8+ years of relevant experience and 15+ years overall experience; additional experience may be considered in lieu of degree. Familiarity with contemporary AI coding ecosystems and developer productivity tools such as Claude Code, OpenAI Codex, Cursor, OpenCode, GitHub Copilot, or similar platforms.

30+ days ago

Millersville, MD

$153,000–$284,000 / year

Additionally, the Scientist will be responsible for defining and driving the technical direction of prospective business opportunities, developing system architectures, providing leadership for proposals and strategic pursuits, as well as having significant input to shape the investments of the business.

Job Description:

L3Harris Acoustics Systems & Imaging Systems is a worldwide leader in the engineering, development, manufacture and integration of acoustics and imaging systems for defense, governmental and advanced applications.

30+ days ago

$89,508–$201,205 / year

Specified academic courses -- Successful completion of at least 60 semester hours of courses in the physical, mathematical, and engineering sciences and that included the courses specified in the basic requirements under paragraph A. The courses must be fully acceptable toward meeting the requirements of an engineering program as described in paragraph A. Related curriculum -- Successful completion of a curriculum leading to a bachelors degree in an appropriate scientific field, e.g., engineering technology, physics, chemistry, architecture, computer science, mathematics, hydrology, or geology, may be accepted in lieu of a bachelors degree in engineering, provided the applicant has had at least 1 year of professional engineering experience acquired under professional engineering supervision and guidance. Specialized experience is: Participating in technical evaluations of operational performance, including evaluations of supporting technical documentation, in a high-hazard facility (i.e., hazards with potential consequences affecting a large number of onsite or offsite personnel); Assisting in preparing portions of technical reports, briefing materials or other documentation detailing performance relative to safe and efficient operations or documenting operational incidents, accidents, malfunctions or non-routine operations; and.

12 days ago

Chantilly, Virginia

This role requires the ability to visualize and communicate complex data in a clear and compelling manner, as well as provide support for the overall workload and execution of Operations and Maintenance (O&M) tasks on the Situational Awareness as a Service (SAaaS) instance of ServiceNow. Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.

23 days ago

Arlington, Virginia

The Technical Management Scientist/Engineer will provide project management support to program managers at the Defense Advanced Research Projects Agency (DARPA), helping to oversee the creation and execution of advanced government-funded research and development programs. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event.

2 days ago

Laurel, Maryland

p style="margin:0px">If you are graduating with a Bachelor’s degree in Computer Science, Computer Engineering, Systems Engineering, Electrical Engineering, Mathematics, Physics, or related fields, and want to contribute to important national security missions, we'd love to have you join our team! Our team works collaboratively with industry, academia, and government to study, design, develop, implement, and test cyber capabilities applied to air, afloat, ground, and undersea military and/or tactical platforms and systems.

9 days ago

Arlington, VA

li>Experience in relevant defense-related technology research and/or development programs including long range effects, mission logistics, and complex project management. If you are a qualified job seeker with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access http://www.blueskyinnovators.com as a result of your disability.

23 days ago

Washington, DC

Remote

Founded in 1986, HETI is a full-service, nationwide environmental services company specializing in environmental and indoor air quality site assessment, site remediation, risk characterization, occupational health and safety services, and litigation/expert witness support. The candidate should have experience managing consulting assignments, must work effectively in multi-disciplinary teams, is expected to be proficient in the analysis and communication of information, and must be able to work cooperatively with agencies, organizations, and individuals to guide decision-making.

30+ days ago

Reston, VA

Available across cloud, on-premises, and edge environments, SeekrFlow reduces bias, strengthens data integrity, and simplifies model oversight so organizations can rely on trusted AI decisions in high-stakes settings that impact society's most sensitive and vital systems. Trusted by leading enterprises and government agencies, we partner with defense, finance, telecom, and critical infrastructure leaders to enable AI solutions that drive real-world results with unmatched transparency and control.

30+ days ago

Tysons, VA

$120,000–$150,000

The Data Scientist/ML Engineer will work directly with data scientists, software engineers, and subject matter experts in the definition of new analytics capabilities able to provide our federal customers with the information they need to make proper decisions and enable their digital transformation.

Hands-on experience deploying and operating applications using IaaS and PaaS on major cloud providers, such as Amazon AWS, Microsoft Azure, or Google Cloud Services.

1 day ago

Tysons, VA

$150,000–$190,000

Hands-on experience deploying and operating applications using IaaS and PaaS on major cloud providers, such as Amazon AWS, Microsoft Azure, or Google Cloud Services.

30+ days ago

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Engineer Scientist Jobs in Washington, DC

Lead Data Scientist Calibre Systems

Subsea Lead Program Engineer Leidos

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Econometrician (Data Scientist 3) - 28593 Company Confidential

Spectrum RF Engineer - 28443 Company Confidential

Software Engineer - Multiple Levels - 26302 Company Confidential

Senior RF Spectrum Policy Engineer - 28296 Company Confidential

Software Engineer Company Confidential

Sr. Process Engineer Company Confidential

Cyber Engineer - 27644 Company Confidential

Zero Trust Compliance Officer (Engineer Info Assurance 4) Company Confidential

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Enterprise Vulnerability Management Lead (Engineer Info Assurance 4) Company Confidential

Senior IaC Engineer (Computer Sys Security Anlyst 5) Company Confidential

Information Systems Security Manager ISSM (Engineer Info Assurance 5) Company Confidential

Senior Proposal Solution Architect (Engineer Systems Architect 5) - 28076 Company Confidential

IaC Engineer (Computer Sys Security Anlyst 3) Company Confidential

Network Engineer Company Confidential

Information System Security Officer (Engineer Info Assurance 4) Company Confidential

Principal AI/ML Engineer - 27560 Company Confidential

DSCA .Net Core Developer (Software Engineer) - 28637 Company Confidential

Systems Engineer, MAJESTIC Company Confidential

Systems Administrator - MAJESTIC 26755 Company Confidential

QA Policy & Strategy Analyst 1 - 27360 Company Confidential

LOGIX Mission Operations Leader (Mgr Programs 3) - 28398 Company Confidential

Scrum Master (Systems Software Analyst 2) - 28343 Company Confidential

SME - Engineer/Scientist/Aviation CSSI Inc

Project Environmental Permitting & Compliance Engineer, Scientist or Manager Langan Engineering & Environmental Services Inc

Engineer Scientist 4 MELE Associates Inc

Energy Technologies Engineer/Scientist Mitre Corp

Administrative Assistant to Chief Engineers & Scientists Johns Hopkins University Applied Physics Laboratory LLC

2026 Graduate - Optics & Photonics Engineer/Scientist Johns Hopkins University Applied Physics Laboratory LLC

2026 Graduate - Optics & Photonics Engineer/Scientist Johns Hopkins Applied Physics Laboratory

Supervisory General Engineer/Physical Scientist US Department of Energy

Interdisciplinary General Engineer Physical Scientist US Department of Energy

Interdisciplinary Supervisory General Engineer/Physical Scientist US Department of Energy

General Engineer/Physical Scientist US Department of Energy

Senior Software Engineer / Data Scientist (Training Systems) Leidos Holdings Inc

Scientist Systems Engineer L3Harris Technologies Inc

General Engineer/Physical Scientist (Facility Representative) US Department of Energy

Data Scientist/Sustainment Engineer CACI

Technical Management Scientist/Engineer Guidehouse

2026 Graduate - Engineer/Scientist - Resilient Military Systems Johns Hopkins Applied Physics Laboratory

Part-Time Senior Engineer/Scientist, TS/SCI Blue Sky Innovators

Senior Geologist/Senior Environmental Scientist/Professional Engineer HYDRO-ENVIRONMENTAL TECHNOLOGIES INC

AI Engineer / Research Scientist Senior, Staff, Explainable AI Seekr Technologies Inc

Data Scientist/Machine Learning Engineer (req-253) CATHEXIS

Senior Data Scientist/Machine Learning Engineer - TS/SCI with Poly (req-242) CATHEXIS

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