Staff Software Engineer Jobs in Washington

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Principal Software Engineer

Modern Technology Solutions

Fort Meade, Maryland, USA

Full-time

Overview Modern Technology Solutions, Inc. (MTSI) is seeking Software Engineers to join our team in the Ft Meade, MD or San Antonio, TX area in support of a government organization essential to U.S. national security. You will develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requ

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

Principal Kubernetes Software Engineer

Leidos

Columbia, Maryland, USA

Full-time

Description Leidos has a new and exciting opportunity for a Principal Kubernetes Software 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% compan

Senior Principal Engineer, Software Engineering

RTX Corporation

Annapolis, Maryland, USA

Full-time

Date Posted: 2025-06-23 Country: United States of America Location: HMD31: Annapolis, MD 2551 Riva Road , Annapolis, MD, 21401-7435 USA Position Role Type: Unspecified U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: ARINC Incorporated d/b/a Collins Aerospace has an opening for a Senior Principal Engineer, Software Engineering in Annapolis, MD. This is a hybrid role, individual must work in the Annapolis, Maryland office 3 times per week and can work remote two

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

Mission Software Engineer Staff

Lockheed Martin Corporation

Remote or Owego, New York, USA

Full-time

Job Description Who We Are At Lockheed Martin Rotary and Mission Systems (RMS), we are pioneers in mission-critical systems and next-generation technology. Our goal is to create innovative solutions that make a lasting impact across defense, aerospace, and technology. By applying the highest standards of ethics, innovation, and performance, we deliver cutting-edge capabilities to those who protect our nation. As part of our team, you will help shape the future of defense by solving the world's

Senior Software Engineer (Sr. MBR Staff)

Lockheed Martin Corporation

Remote or Moorestown, New Jersey, USA

Full-time

Job Description By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our em

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

Principal Software Engineer 25k Sign on Bonus

Leidos

Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal Software 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 ve

Deputy Staff Engineer

Parsons Services Company

Centreville, Virginia, USA

Full-time

In a world of possibilities, pursue one with endless opportunities. Imagine Next! When it comes to what you want in your career, if you can imagine it, you can do it at Parsons. Imagine a career working with exceptional people sharing a common quest. Imagine a workplace where you can be yourself. Where you can thrive. Where you can find your next, right now. We've got what you're looking for. Job Description: Parsons is looking for an amazingly talented Deputy Staff Engineer to join our team!

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

Principal Kubernetes Software Engineer

Leidos

Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal Kubernetes Software 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

Senior Staff AI Engineer - LLM inference optimization

Yoh - A Day & Zimmerman Company

Remote or San Jose, California, USA

Full-time

Senior Staff AI Engineer LLM inference optimization Roles and Responsibilities: Design and architect technical solutions to deliver foundational AIOS capabilities within SkyOS across ECU domains in electric vehicles (EVs).Lead the development of proof-of-concept projects to evaluate architectural designs for functionality, performance, security, and reliability.Collaborate closely with engineering teams to understand real-world development constraints and ensure high-quality implementation, val

Principal Software Engineer - 25k Sign on Bonus

Leidos

Columbia, Maryland, USA

Full-time

Leidos has a new and exciting opportunity for a Principal Software 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 v

Principal Software Engineer, Connected Warfare

Aduril Industries

Washington, District of Columbia, USA

Full-time

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century's most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril's family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and c

Senior Staff Engineer - Linux Kernel Software Engineer

Qualcomm Technologies

Remote or Santa Clara, California, USA

Full-time

Company: Qualcomm Atheros, Inc. Job Area: Engineering Group, Engineering Group > Software Engineering General Summary: We are looking for motivated Linux Kernel Software Engineer to join the Qualcomm Infrastructure Wi-Fi Connectivity group, to be part of defining the next generation WLAN products. As part of this group, you will be responsible for: Work with the Opensource community and Qualcomm upstream wireless ath12k driver to contribute and review patchesWork with a kenel.org project and

Principal Software Engineer

Leidos

Reston, Virginia, USA

Full-time

Leidos has a new and exciting opportunity for a Principal Software 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 ve

Software Engineer Staff

Lockheed Martin Corporation

Remote or King of Prussia, Pennsylvania, USA

Full-time

Job Description Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We're creating future-ready solutio

C++ Staff Engineer

Ranger Technical Resources

Remote

Full-time

C++ Staff Engineer #2483 Position Summary: Our partner, a leading SaaS provider of unified IT operations solutions designed to simplify and automate the management of IT infrastructure, is looking for a Staff C++ Engineer to join their team. You will design, develop, and maintain native C++ applications that integrate with a wide range of platform solutions driving automation, scalability, and seamless user experiences across IT infrastructure. You ll collaborate closely with cross-functional t

Advanced Software Engineer

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 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred. Must have previous experience with Linux and either C++ or Java. CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is obtainable within a reasonable amount at time from hire. Applicants selected will be sub