Principal Software Engineer
Leidos
Principal Software EngineerLeidos has an exciting opportunity for a Principal Software Engineer in our Intel Security Sector's Analysis Solutions Business Area. 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 vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!Job SummaryAs a Software Engineer on this program, you will have the opportunity to build strong systems, software, and cloud environments while providing operations and maintenance for critical systems. This role will provide technical expertise in the design, development, implementation and testing of customer tools and applications. Based in a DevOps framework, this role participates in and/or directs major deliverables of projects through all aspects of the software development lifecycle including scope and work estimation, architecture and design, coding and unit testing.Primary Responsibilities:Participates in and/or directs software programming initiatives using Java, JavaScript, Python, SpringBoot, and Hibernate.Develops software system validation and testing methods using Junit and Katalon and uses integrated custom developed software solutions to leverage automated deployment technologiesDevelop, prototype and deploy solutions within Commercial Cloud Solutions leveraging infrastructure platform servicesCoordinate closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use casesSupport the Agile software development lifecycle following SAFe practices, using industry leading DevOps tools like GitHub, Jenkins, Unix bash scripting and leveraging tools such as JIRA and Confluence to track activitiesAnalyze (though proof of concept, performance, and end-to-end testing) and effectively coordinate Infrastructure needs driven by developed software to meet customer mission needs.Apply and identify best practices and standard operating procedures creating innovative solutions to meet the technical needs of customers.Basic Qualifications:In-depth use and experience in common Agile practices, service-orientated environments, and development practicesIn-depth experience with Java, Spring, C2S and the software development lifecycle, delivering within DevOps toolsets/practicesDirect experience utilizing software testing performance tools, such as Junit/Katalon and scripting languages, such as Python and Bash, while working in an Agile development environmentIn-depth experience with development in Commercial Cloud Platforms (ex, AWS, Google Cloud, Azure) and leveraging cloud data services (ex: S3, RDS, EFS)In-depth experience using version control systems and issue/problem tracking systemsBachelor's degree with 12+ years of prior relevant experience or Master's with 10+ years of relevant experience.To be considered must have an active TS/SCI with polygraph security clearancePreferred Qualifications:Experience with structured analysis and design methodologiesUnderstanding of the customer's system development policies.
- ...making it easy for buyers at Fortune 1000 companies to tap into global manufacturing capacity. Xometry is seeking a Principal Software Engineer to join our Xometry Partner Experience Technology Organization. In this role as a senior individual contributor, you will...SuggestedFull time
$131.3k - $237.35k
Leidos has an exciting opportunity for a Principal Software Engineer in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and...SuggestedFull timeImmediate startFlexible hours$131.3k - $237.35k
Leidos has a new and exciting opportunity for a Principal Biometrics Software Engineer in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical...SuggestedFull timeImmediate startFlexible hours$200k - $225k
...making it easy for buyers at Fortune 1000 companies to tap into global manufacturing capacity. Xometry is looking for a Principal Software Engineer to join our Partner Ecosystems team. This team builds the high-performance integration layer that embeds Xometry's AI-...SuggestedWork at office3 days per week$163.8k - $257.4k
...backs your ambition, you won’t just contribute. You’ll make things happen-fast.About the Role:We are seeking an experienced Principal Software Engineer (Data) to join our fast-paced, collaborative data team. In this role, you will have broad authority to drive the...SuggestedWorldwide- ...The Role Join us in revolutionizing the lending landscape. SoFi is seeking enthusiastic Principal Software Engineers who are ready to lead the technical and strategic evolution of our financial services platform in support of our goals that put our members in control...Full timeTemporary workWork experience placement
$172.5k - $313.7k
...You’re in the right place! Agentforce is the future of AI, and you are the future of Salesforce.Salesforce is seeking a Principal Software Engineer (PMTS) to join the Tableau Agent Analytics Agentforce Process Intelligence team. You will act as a technical leader across...Full time$272k - $431.25k
...of any single GPU, this platform enables efficient, resilient deployment of cutting-edge LLM workloads.We are seeking a Principal Systems Engineer to define the vision and roadmap for memory management of large-scale LLM and storage systems.What you'll be doing:Design...Full timeLocal areaRemote work$131.3k - $237.35k
We are seeking an experienced Principal Software Engineer to join our team in developing the forefront of unmanned and autonomous ship development for the US Government. Based in Arlington, VA, you will be embedded within an Agile Scrum team - designing, building, and testing...Full time- Arlington, VirginiaHybridFull Time$180k - $200kAn early-stage AI startup is hiring a Principal Software Engineer to join its team. This is a hybrid opportunity based in Herndon, VA.The company is building the platform enterprises use to deploy, monitor, and optimize AI...
$166k - $225k
...strategize, brainstorm and connect on key projects.About Our Engineering OrganizationOur Product Engineering organization consists of cross... ...agile methodology.We are proud to have one of the strongest software development teams in the health tech space, with deep...Full timeTemporary workWork at officeImmediate startRemote workWorldwide3 days per week- ...Principal Software Engineer Apogee Research is at the forefront of a revolution in how the DoD operates: a turn towards compositional systems of systems instead of traditional monolithic architectures. This change is driven by a need for faster adaptation to adversarial...Full timeFor contractorsWork at officeFlexible hours
$220k - $280k
...Principal Software EngineerArlington, VAAbout The TeamSTR's Intelligence Division researches and develops advanced analytics and machine learning... ...security. Our team consists of passionate and motivated engineers with advanced degrees in engineering, computer science,...- ...Principal CNO Software EngineerZetier is seeking Principal CNO Software Engineers to develop operationally critical cyber capabilities. Candidates will demonstrate practical experience designing, developing, and deploying tools intersecting command and control, persistence...
$150k - $175k
...every day for mission-critical security, delivered through our cloud infrastructure. We are looking for an experienced Principal Software Engineer who will be responsible for developing and maintaining our flagship product assets. This includes the architecture,...Work at office- ...Software Developer Design and develop software applications using Twelve-Factor App methodology from functional requirements. Develop highly innovative UI design, web components, achieved through collaboration and dialogue with other experts in the field. The candidate...
$200k - $250k
...Principal Software Engineer - emPower Do you love working with connected devices, automation, and real-world systems? Have you automated your own home, built integrations across smart devices, or thought deeply about how cloud software should control physical systems...Casual workWork at officeImmediate startWorldwide$220k - $372k
...cutting-edge technologies and thrive.Key ResponsibilitiesLead design, architecture, implementation, and delivery of complex software engineering projects in the cloud storage service organization.Serve as a technical leader on demanding, cross-functional engineering projectsFunctionally...Local area$117.1k - $187.3k
...Content Systems, Content workflows and Content AI platforms. As a successful technology leader, you will build and lead remote software engineering organizations using agile principles to architect and deliver high availability enterprise software. You will partner...Work experience placementLocal areaRemote workWorldwide$161.5k - $218.5k
...Software Engineer Sr PrincipalGDIT is seeking a Principal Software Engineer to join our team.This challenging and interesting software engineering and development position is a chance to participate in the development and operation of a high-performance big data system...Temporary workImmediate startRemote workWorldwideFlexible hours$114.6k - $234.6k
...to design or simplify the commerce experience? Our Oracle Commerce team is seeking a passionate, energetic and curious Principal Software Engineer to join our organization. Oracle Commerce is an established and diverse team, driven to unify and build premier commerce...Temporary workRemote workFlexible hours$204k - $284k
...Principal Software Reverse Engineer Arlington, VA Job Description STR is hiring a Principal Software Reverse Engineer who has a passion for research and analysis of vulnerabilities in cyber physical systems. This opportunity will be part of a multidisciplinary...Full timeWork experience placementLocal areaImmediate startNight shift- ...Job Title: Principal Software Engineer Client: Leidos LOCATION: Woodlawn, MD (5 days per week onsite) Duration: 12+ Months Visa: USC/GC (Will need to obtain Public Trust) Rate: $85/hr on c2c Years of Exp.: 14+ Required...Contract workRelocation
- ...Position Description Design and develop software applications using Twelve-Factor App methodology from functional requirements... ...) Bachelor's Degree in Computer Science, Mathematics, Engineering or a related field. Masters or Doctorate degree may...
$123k - $308k
...Principal Software Engineer Clarity Innovations is a trusted national security partner, dedicated to safeguarding our nation's interests and delivering innovative solutions that empower the Intelligence Community (IC) and Department of Defense (DoD) to transform data...Full time$150k
...Principal Software Engineer at NAVEXAt NAVEX, we're transforming the world—making it safer, more ethical, and ensuring every voice is heard. That's real impact.Our high-performance culture is driven by our values. We move with speed, passion and purpose—as one team. We...$144.2k - $288.4k
...Principal Software Engineer We're building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you'll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold...Hourly payFull timeTemporary workLocal areaFlexible hours- ...Principal Software Engineer As a Principal Software Engineer, you will be guiding software engineering development across several teams, and solving our most challenging technical problems, providing prototypes for our larger engineering team. You will actively contribute...
- ...Principal Software EngineerDate: Jun 30, 2026 Location: Washington, DC, US, 20001 Philadelphia, PA, US, 19104 Wilmington, DE, US, 19801... ...core Internet technologies and modern full stack software engineering practices. Proficiency in Java, JavaScript, TypeScript, SQL...Hourly payTemporary workWork experience placementFlexible hours
- ...Data And Integration Group Lead/Principal Why choose between doing meaningful work and... ...cloud adoption, automation, and engineering best practices – to include hands on development... ...in data engineering, data warehousing, software engineering, data integration, and/or...
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