Principal, Software Engineer Jobs in Washington

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Lead Software Engineer

Costar Group

•

Arlington, Virginia, USA

Full-time

Lead Software Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate information and
Posted 60+ days ago | Updated 3 hours ago

Lead Software Engineer, Back End (Enterprise Platform Technology)

Capital One

•

McLean, Virginia, USA

Full-time

Lead Software Engineer, Back End (Enterprise Platform Technology) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who love to solve real problems and meet real customer needs. We are seeking Back End Software Engineers who are passionate about marrying data with emergin
Posted 60+ days ago | Updated 3 hours ago

Lead Product Software Engineer

Booz Allen Hamilton

•

McLean, Virginia, USA

Full-time

Job Number: R0220496 Product Software Engineer, Lead The Opportunity: We're looking for a Sof tware Engineer to join our internal Product Engineering team-a dynamic group of innovators passionate about redefining the market through cutting-edge technology. This role is ideal for a self-starter, visionary, "10x-type" engineer who thrives in high-impact environments and is eager to build and operate always-on, secure, and scalable sof tware services. As a seasoned sof tware engineer at Booz Allen,
Posted 60+ days ago | Updated 4 hours ago

Principal Cyber Engineer

Nightwing

•

Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th
Posted 60+ days ago | Updated 3 hours ago

Principal Cybersecurity Engineer

NuLeap

•

Remote or US

Third Party

Job Summary (List Format): - Lead the design and implementation of secure, scalable, and high-performance cloud-based systems. - Architect and develop backend systems using Rust (Tokio, Actix, Axum, Rocket) and Scala (Akka, ZIO, Cats, Play). - Ensure secure execution environments utilizing WebAssembly (WASM). - Employ extensive AWS services (Lambda, ECS, S3, API Gateway, CloudFront, DynamoDB, GuardDuty, WAF, Security Hub, KMS) for cloud infrastructure and security. - Implement and enforce AP
Posted 60+ days ago | Updated 9 days ago

Lead Software Engineer, (Manager IC) (Bank Tech)

Capital One

•

McLean, Virginia, USA

Full-time

Lead Software Engineer, (Manager IC) (Bank Tech) Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At Capital One, you'll be part of a big group of makers, breakers, doers and disruptors, who solve real problems and meet real customer needs. We are seeking Full Stack Software Engineers who are passionate about marrying data with emerging technologies. As a Ca
Posted 60+ days ago | Updated 3 hours ago

Senior Staff Engineer, Software Autonomy Applications (R3694)

Shield AI Inc

•

Washington, District of Columbia, USA

Full-time

The Software Applications Engineer will provide technical expertise and support to customers during the implementation and use of Shield AI enterprise software products. This role involves working closely with customers to understand their requirements and ensuring successful product integration for AI & Autonomy development. What you'll do: Become an expert user of the Hivemind enterprise software stack. Provide technical support and training to customers. Develop AI & Autonomy applications usi
Posted 60+ days ago | Updated 3 hours ago

Principal Systems Engineer

Leidos

•

Fort Meade, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal System Engineer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate ves
Posted 55 days ago | Updated 3 hours ago

Principal Data Center Facility Engineer, JoinOCI

Oracle Corporation

•

Ashburn, Virginia, USA

Full-time

Job Description The IC4-DCFE will have experience in data center mechanical, electrical, CMMS, and BMS systems. They will possess knowledge of large-scale data centers, including state-of-the-art electrical distribution systems, static and rotary UPS, emergency standby generation, fire alarm/suppression and monitoring systems. In addition, the IC4-DCFE will be accountable for the coordination and completion of all significant planned and emergency maintenance events for the facility and confirm
Posted 13 days ago | Updated 3 hours ago

Senior Software Engineer Technical Lead

Booz Allen Hamilton

•

Springfield, Virginia, USA

Full-time

Job Number: R0222912 Software Engineer Technical Lead, Senior The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software, but to create a system that will make a difference, we need you on our team. We're looking for an experienced developer like you with the skills needed to develop software and systems from vision to production-ready. This role is more than
Posted 16 days ago | Updated 4 hours ago

Software Engineer - Active Sonar C / C++

General Dynamics

•

Manassas, Virginia, USA

Full-time

Basic Qualifications Requires a Bachelor's degree in Software Engineering, or a related Science, Engineering or Mathematics field. Also requires 2+ years of job-related experience or a Master's degree. Agile experience preferred. Must have C / C++ experience and Linux. CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for acce
Posted 16 days ago | Updated 3 hours ago

Lead Machine Learning Engineer

Jobot

•

Falls Church, Virginia, USA

Full-time

ML Engineer Tysons Corner, VA This Jobot Job is hosted by: Charles Simmons Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $150,000 - $200,000 per year A bit about us: Our client is a well-funded deep tech company headquartered in Northern Virginia, building a suite of autonomous software reliability and testing products. Their team is collaborative, highly technical, and customer focused. They prioritize the long-term in our structure, our
Posted 12 hours ago | Updated moments ago

FLEX Senior Software Engineer - Salesforce OMS

Marriott International

•

Bethesda, Maryland, USA

Full-time

Job Description This is a temporary position. Senior Software Engineer - Salesforce OMS Marriott International is seeking a Senior Software Engineer, Salesforce OMS for the implementation and on-going support of a new OMS & Commerce platform. The ideal candidate will be part of a collaborative project team, responsible for understanding business requirements, development, reviewing code, writing unit test scenarios, and fixing defects for in-use modules/applications. He/she will be responsible
Posted 31 days ago | Updated 3 hours ago

Principal Engineer, Product Development

Micron Technology, Inc.

•

Manassas, Virginia, USA

Full-time

Our vision is to transform how the world uses information to enrich life for all. Micron Technology is a world leader in innovating memory and storage solutions that accelerate the transformation of information into intelligence, inspiring the world to learn, communicate and advance faster than ever. As DRAM Engineering Group (DEG) Product Principal Engineers we are responsible for running technical projects to align product performance and manufacturing flows across DRAM products. We define pr
Posted 60+ days ago | Updated 3 hours ago

Staff Engineer, Software Perception (R3554)

Shield AI Inc

•

Washington, District of Columbia, USA

Full-time

Founded in 2015, Shield AI is a venture-backed defense technology company with the mission of protecting service members and civilians with intelligent systems. Its products include the V-BAT aircraft, Hivemind Enterprise, and the Hivemind Vision product lines. With offices in San Diego, Dallas, Washington, D.C., Boston, Abu Dhabi (UAE), Kyiv (Ukraine), and Melbourne (Australia), Shield AI's technology actively supports U.S. and allied operations worldwide. For more information, visit Follow Sh
Posted 45 days ago | Updated 3 hours ago

Senior Principal Photonics Engineer

RTX Corporation

•

Columbia, Maryland, USA

Full-time

Date Posted: 2025-03-24 Country: United States of America Location: MD721: HS Columbia MD 7100 Columbia Gateway Dr Suite 160, Columbia, MD, 21046 USA Position Role Type: Onsite At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's
Posted 60+ days ago | Updated 3 hours ago

Senior Software Engineer

Booz Allen Hamilton

•

Fort Meade, Maryland, USA

Full-time

Job Number: R0221713 Software Engineer, Senior The Opportunity: As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you're looking for the chance to not just develop software, but to create a system that will make a difference, we need you on our team. We're looking for a seasoned developer like you with the expertise needed to build software and systems from vision to production ready. This role is more than just coding. As a
Posted 38 days ago | Updated 4 hours ago

Lead Software Engineer

Realm One

•

Maryland, USA

Full-time

We're seeking a Lead Software Engineer to collaborate with system users, requirements owners and developmental contractors to translate operational requirements. If you are ready to support a high-performing team that truly makes a difference, thencome join us! Job Description: Essential Duties and Responsibilities: Collaborates with system users, requirements owners, and developmental contractors to translate operational requirements into software requirements, designs, and implementations.P
Posted 60+ days ago | Updated 3 hours ago

Remote Principal Software Developer- AI/ML

Oracle Corporation

•

Remote

Full-time

Job Description As a Principal Member of Technical Staff, you will be a key contributor to the development and success of our next-generation CDA platform, which leverages the power of generative AI and cloud-native technologies. Your expertise in data platform engineering will drive the creation of a robust and intelligent system, enhancing the healthcare experience for patients and clinicians alike. We are seeking a candidate with a good understanding of current AI trends and the ability to g
Posted 20 days ago | Updated 3 hours ago

Sr Principal Systems Engineer - LINUX - Active Top Secret Required

General Dynamics Information Technology

•

Washington, District of Columbia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Systems Engineering Job Qualifications: Skills: Complex Systems, Microsoft Windows Server, Systems Engineering, Systems Management Certifications: CompTIA - Security+ CE - CompTIA Experience: 15 + years of related experience ship Required: Yes Job Description: Senior Principal Systems Engineer - Linux Design,
Posted 60+ days ago | Updated 23 hours ago