874 Principal Software Engineer jobs in Washington,DC

Software Engineer with Poly SR SWE2

Lockheed Martin

Annapolis Junction, MD 20701

~ 32 min OnsiteUrgently HiringHealth InsurancePaid Time OffRetirement Benefit

TS/SCI w/ FSP
Twenty (14) years' experience as a SWE in programs and contracts of similar scope, type, and complexity is required.
Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor's degree.
Experience as a Software Engineer with knowledge assisting in the design, development, testing, and debugging of software solutions, with a focus on Linux operating systems.
Strong Familiarity with programming languages such as Java.

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Manager, Embedded Software Engineering - Onsite Position

Curtiss-Wright

Ashburn, VA 20147

$144,100-$195,000/yr

~ 42 min OnsiteUrgently HiringPaid Time OffRetirement Benefit

Bachelor degree in the technical field (Computer Science, Computer Engineering, Software Engineering, Electrical Engineering)
Competencies in computer architecture, development of real-time embedded software, engineering process discipline, earned value management systems
Minimum 10 years' experience as an embedded software developer, working closely with other disciplines (hardware, mechanical) with ability to understand hardware design, board schematics
Minimum 5 years' experience leading or managing a software team though full SDLC (Software Development Life Cycle); Skilled in software management tools such as Jira, Confluence, BitBucket
Resource planning experience including staff and equipment needed for successful project execution
Experience and working knowledge of bid and proposal process
Excellent written and verbal communication skills
Leadership and Management skills
US Citizenship required; Currently hold or have the ability to obtain US security clearance.

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Appian Developer

Cherokee Federal

Washington, DC 20036

OnsiteUrgently HiringEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Experience: 10 years (related)
BA/BS in Computer Science, Computer Engineering, or a technical or related field (or equivalent)
Active Secret clearance, or the ability to obtain a Secret clearance, required.
Must pass pre-employment qualifications of Cherokee Federal.
U.S. Citizenship is required.
Must be a US Citizen.
BA/BS with concentration in computer science, computer engineering, or a technical or related field.
Appian Certified Lead Developer certification or comparable.
Three+ years of experience in successful software delivery or software development using Appian technologies and tools or comparable.
Master's degree can be substituted as 4 years of experience.
10 years of related experience.
Familiarity with web services, FTP, Java Messaging System (JMS), and other web integration technologies.
Background in user experience, UI design, or Hyperconverged Infrastructure (HCI).

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Mid-to-Senior Software Developer

SimVentions, Inc - Glassdoor✪ 4.6

Pomfret, MD 20675

Urgently Hiring

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2026 PhD Graduate - Autonomous Systems Design Engineer: Controls, Navigation, Sensors, and Simulation

Johns Hopkins Hospital

Laurel, MD 20723

$105,000/yr

~ 29 min OnsiteUrgently HiringEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

Are pursuing a PhD in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Software Engineering Systems Engineering, Physics, Mathematics, or Computer Science.
Proven internship experience or possess extensive classroom project work in a subject matter in any of the following areas: guidance, inertial navigation, modern/adaptive control, classical control, optimization; electromagnetic wave propagation, RF antennas, optics, signal and image processing, radar, programming/coding; dynamics, programming/coding, algorithms, optimization; hardware testing, embedded systems, sensor testing artificial intelligence and software development.
Are skilled in or have knowledge of coding practices in Matlab/Simulink, C++, Python, or other languages
Are able to obtain an Interim Secret security clearance by your start date and can ultimately obtain a Secret level clearance. If selected, you will be subject to a government security clearance investigation and must meet the requirements for access to classified information. Eligibility requirements include U.S. citizenship.
Have a minimum 3.0 GPA on a 4.0 scale. Note: When prompted to upload attachments, please include a copy of your college transcripts (unofficial transcripts are acceptable).

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Principal Optical Engineer

QinetiQ

Lorton, VA 22079

~ 23 min OnsiteUrgently Hiring

Bachelor's degree in optical engineering or related field
15+ years of experience in optical design and related fields relevant to the position responsibilities, including strong prior experience working in the defense or aerospace industry
Experience in laboratory environments including expertise with opto-mechanical assembly, alignment tools, optical bore sighting, laboratory testing
Design experience incorporating HD visible sensors, SWIR, MWIR, LWIR sensors with optical assemblies (including fixed focus and zoom configurations) and into higher-level systems
Experience modeling visible, SWIR, MWIR and LWIR sensor systems to predict system performance for detection, recognition and identification of objects
Knowledgeable in techniques and specifications for Optical Image Stabilization (OIS) and Fast Steering Mirrors (FSM)
Experience in specifying displays, especially near-eye displays for systems such as sights, binoculars, and AR/VR systems
Experience designing and modeling lenses and other optical components in Zemax
A solid knowledge of relevant optical component suppliers
Up 10% travel to support project needs, including to QinetiQ sites, customer sites, military installations, and other locations
Must have active Secret or higher level clearance #QinetiQClearedJob

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AI & Analytics Solutions Engineer

Trident Maritime Systems

Arlington, VA 22204

Paid Relocation to Arlington, VA

RemoteUrgently Hiring

Bachelor's degree in Computer Science, Engineering, Data Science, Mathematics, or a related technical field
3–5+ years of experience building and deploying machine learning or AI systems
Eligible to work within government tenants (GCC, GCCH) and with FEDRAMP compliant solutions
Certifications in MS Azure, Dev Ops, Analytics, and AI

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Technical Writer - Mid Level

Boeing

Annapolis Junction, MD 20701

~ 32 min OnsiteUrgently Hiring

Six (6) years of experience as a Technical Writer on programs and contracts of similar scope, type and complexity is required
Bachelor's degree in technical discipline from an accredited college or university
Active TS/SCI with Polygraph Clearance
Experience coordinating layout and design of documents on all phases of documentation lifecycle

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Site Reliability Engineer

BOOZ, ALLEN & HAMILTON

Herndon, VA 20171

~ 34 min OnsiteUrgently HiringEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

5+ years of experience in SRE, DevOps, Systems Engineering, or Software Engineering roles
Experience with supporting, troubleshooting, and performing maintenance activities for Java Springboot applications
Experience with writing source code for new applications or generating and enhancing code samples for existing applications, and using back-end and front-end languages to develop complete solutions
Experience with CI/CD pipelines built for classified environments, and Agile methodology
Experience with version control systems, including Bitbucket and GitLab
Ability to provide call-in support after hours on a rotational basis
Ability to troubleshoot, diagnose, and resolve software issues quickly and efficiently, and assist customers with technical issues via phone or email
TS/SCI clearance with a polygraph
HS diploma or GED
DOD 8570 or 8140 IAT Level II Certification, such as Security+ CE, SSCP, CySA+, CCNA-Security, CND, GICSP, or GSEC Certification, or IAT level III Certification

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Engineering Manager (Systems Engineering/ System Verification)

BAE Systems

Rockville, MD 20850

~ 36 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

Bachelor of Science degree in Systems, Mechanical, or Electrical Engineering
8 years' experience supporting systems engineering on large DoD programs
System Engineering experience with major weapon system development product lifecycle and technologies
Experience with conducting compatibility analysis of interface requirements
Experience with integration of models, software, and / or hardware
Experience with various engineering tools / languages including PTC Windchill, IBM DOORS, 2D/3D CAD, SysML, and/or MATLAB Simulink
Experience with leading projects involving multiple team members
Experience with presenting project status to management and/or the client
Experience in organizing and hosting meetings involving multiple stakeholders
Willing to travel approximately 10% of the time
Must possess strong organizational, time management, and project management skills
Proficient with PC and MS Office Suite

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