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Washington, District of Columbia

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Today

Overview Are you ready to take your career to the next level? BigBear.ai is seeking a Principal Software Developer to join our GALE (Generic Area Limitation Environment) Support team. This is your chance to work on impactful projects that directly support the Department of Defense (DoD) and the Intelligence Community (IC). At BigBear.ai, we empower organizations to make sense of their data through cutting-edge technology, transforming massive volumes of structured and unstructured data into act

Full-time

Principal Software Engineer Manager- CTJ- Poly

Reston, Virginia

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Today

Overview Microsoft has an exciting opportunity for a Principal Software Engineer Manager to lead engineering teams responsible for developing, deploying, operating, and continuously improving Azure services within Microsoft Specialized Clouds. This role sits at the intersection of cloud platform engineering, live site operations, and regulated cloud delivery, supporting mission critical Azure products in environments. As a people manager and technical leader, this role owns end to end service

Full-time

USD 139,900.00 - 274,800.00 per year

Principal Software Engineer

Bethesda, Maryland

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Today

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 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 Schedu

Full-time

USD 131,300.00 - 237,350.00 per year

Principal ETL Developer

Bethesda, Maryland

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Today

Leidos has an exciting opportunity for a Principal ETL Developer 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 vesting, Flex

Full-time

USD 131,300.00 - 237,350.00 per year

Tech Lead - Principal Software Engineer

Arlington, Virginia

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Today

Seeking a career with a sense of purpose, work life balance, and growth opportunities? There's a place for you at Leidos! We are currently seeking an Technical Lead to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. Apply today to become part of the Leidos team that is assisting CESO as t

Full-time

USD 131,300.00 - 237,350.00 per year

Principal Java Developer

Bethesda, Maryland

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Today

Leidos has an exciting opportunity for a Principal Java Developer 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

Full-time

USD 131,300.00 - 237,350.00 per year

Principal Software Engineer, Enablement

Remote or Reston, Virginia

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Today

Principal Software Engineer - Enablement This is not a maintenance role. This is a reinvention role. We are looking for a Principal Software Engineer who doesn't just build systems-but reshapes how they are conceived, delivered, and trusted. Someone who pairs deep technical credibility with architectural vision, and who has the conviction to challenge legacy approaches when the mission demands more. Leidos is seeking a Principal Software Architect to be a technical software lead for the Enabl

Full-time

USD 154,050.00 - 278,475.00 per year

Principal Security Software Engineer (Starshield)

Washington, District of Columbia

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. PRINCIPAL SECURITY SOFTWARE ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch capability to support national security efforts. While Starlink is designed for consumer and commercial us

Full-time

USD 220,500.00 - 300,000.00 per year

Principal Security Software Engineer, Applied Computing (Starshield)

Washington, District of Columbia

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. PRINCIPAL SECURITY SOFTWARE ENGINEER, APPLIED COMPUTING (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch capability to support national security efforts. While Starlink is designed for consume

Full-time

USD 220,500.00 - 300,000.00 per year

Principal Software Engineer - CTJ - Poly

Reston, Virginia

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Today

Overview Do you have a passion for large-scale services and working with some of Microsoft's most critical customers? We're looking for a Software Engineer II with the right mix of software development, on-line services experience, and passion for quality to envision, design, and deliver Microsoft 365 government cloud service offerings. Microsoft 365 is at the center of Microsoft's cloud first, devices first strategy as it brings together cloud versions of our most trusted communication and co

Full-time

USD 139,900.00 - 274,800.00 per year

Principal Software Engineer - CTJ - POLY

Reston, Virginia

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Today

Overview Azure Data Transfer enables secure access and data transfer between disconnected clouds and enclaves. Our service allows Microsoft to deliver Azure to customers with heightened data isolation and security requirements. As a Principal Software Engineer in Azure Data Transfer, you will help us fulfill our goal of seamless, secure, and quick data transfer. You will help us enable additional scenarios and help us build out additional data pairings. In this role, you will practice customer

Full-time

USD 139,900.00 - 274,800.00 per year

(USA) Principal, Software Engineer, Information Security

Herndon, Virginia

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Today

Position Summary What you'll do Role summary: The Principal Software Engineer, Information Security, leads the design and implementation of secure, scalable software solutions aligned with business objectives. This role requires expertise in coding standards, software architecture, and telemetry to ensure high availability and maintainability. The role requires expertise across multiple domains including technical design, implementation, testing, troubleshooting, analytics, and stakeholder mana

Full-time

USD 132,000.00 - 264,000.00 per year

Principal Software Engineer (SWE-V)

Maryland

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Today

Leidos has a new and exciting opportunity for a Principal Software Engineer in our Intel Sector. 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,

Full-time

USD 154,050.00 - 278,475.00 per year

Senior Software Engineer

Tysons, Virginia

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Today

Senior Software Developer / Staff Software Engineer Needed for Well-Funded Tech Startup! This Jobot Job is hosted by: Reed Kellick Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $140,000 - $215,000 per year A bit about us: We are a well-funded tech startup that is on the lookout for a talented Principal Software Engineer / Senior Backend Developer! Why join us? As a Senior Full Stack Engineer / Senior Backend Engineer in our company, we

Full-time

USD 140,000.00 - 215,000.00 per year

Software Engineer, Associate Principal

Maryland

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Today

Job Description Readiness Delivered. Kratos Defense & Security Solutions develops and fields transformative, affordable technology, platforms, and systems for United States National Security related customers, allies, and commercial enterprises. We proactively build trusted relationships with our peers, partners and customers, and take ownership for our actions-always striving to do the right thing. Kratos is looking for an Associate Principal Software Engineer to join our team in-person in A

Full-time

Depends on Experience

Senior Full Stack Engineer

Tysons, Virginia

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Today

Senior Full Stack Developer / Senior Software Engineer Needed for Well-Funded Tech Startup! This Jobot Job is hosted by: Reed Kellick Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $140,000 - $215,000 per year A bit about us: We are a well-funded tech startup that is on the lookout for a talented Senior Fullstack Engineer / Senior Software Developer! Why join us? As a Senior Fullstack Developer / Principal Software Engineer in our compan

Full-time

USD 140,000.00 - 215,000.00 per year

Principal Software Engineer (ONSITE)

Fulton, Maryland

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Today

Date Posted: 2026-03-24 Country: United States of America Location: US-MD-FULTON-8170 ~ 8170 Maple Lawn Blvd ~ MAPLE LAWN, Ste 190, 200 & 300 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Solipsys, Managed by Collins Aerospace

Full-time

USD 118,300.00 per year

AWS Marketplace Developer Sr. Principal

Falls Church, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: Technical Solutions Job Qualifications: Skills: Amazon Web Services (AWS) Security, Artificial Intelligence (AI), AWS Development, Innovation, Marketplace Management Certifications: None Experience: 8 + years of related experience ship Required: No Job Description: Are you an AWS Marketplace SME and solution and product build

Full-time

USD 164,382.00 - 218,500.00 per year

Principal Software Engineer - Strategic Defense Solutions (Onsite)

Sterling, Virginia

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Today

Date Posted: 2026-03-09 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 Principal Software Engineer - Strategic Defense Solutions (Onsite) Ro

Full-time

USD 118,300.00 per year

Senior Principal Software Engineer (ONSITE)

Fulton, Maryland

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Today

Full-time

USD 145,600.00 per year

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