Software security Jobs in District of Columbia

21 - 40 of 755 Jobs

SME Cybersecurity EngineerJob Title - SME Cybersecurity Engineer

SAICCompany Name - SAIC

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Washington, District of Columbia, USA

Full-time

Job ID: 2506848 Location: WASHINGTON, DC, US Date Posted: 2025-06-25 Category: Cyber Subcategory: Cyber Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a highly motivated SME Cybersecurity Engineer to provide subject matter expertise (SME) and advisory to the Customer. This effort focuses on providing a comprehensive set of System/

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Falls Church, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a highly skilled Cyber Security Engineer supporting the NRO cyber operations group or Industrial Control Systems group at each site by working with the Information Security Offices to design, implement, and support defensive security solutions that safeguard mission-critical systems and data. The ideal candidate will have deep expertise in cyber threat research, vulnerability assessment, and secure software development practices. This role focuses on pro

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Merrifield, Virginia, USA

Full-time

Cybersecurity Engineer - US FederalJob Title - Cybersecurity Engineer - US Federal

Workday, Inc.Company Name - Workday, Inc.

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McLean, Virginia, USA

Full-time

Your work days are brighter here. At Workday, it all began with a conversation over breakfast. When our founders met at a sunny California diner, they came up with an idea to revolutionize the enterprise software market. And when we began to rise, one thing that really set us apart was our culture. A culture which was driven by our value of putting our people first. And ever since, the happiness, development, and contribution of every Workmate is central to who we are. Our Workmates believe a h

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Quality Assurance TesterJob Title - Quality Assurance Tester

Robert HalfCompany Name - Robert Half

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Washington, District of Columbia, USA

Full-time

Description We are seeking a talented and driven Tester to join our dynamic team in an onsite capacity. In this role, you'll be instrumental in identifying vulnerabilities and strengthening security across applications, networks, and systems. The ideal candidate will hold advanced detail oriented certifications such as GWAPT, OSCP, CEH, or similar credentials and have 3-5 years of hands-on experience in penetration testing, application security testing, and source code review. Key Responsibiliti

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Burke, Virginia, USA

Full-time

Chief Unmanned Systems Robotics EngineerJob Title - Chief Unmanned Systems Robotics Engineer

LeidosCompany Name - Leidos

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Arlington, Virginia, USA

Full-time

Leidos, a global technology leader, is seeking a Chief Unmanned Systems Robotics Engineer for our Sea Systems Business Area within our Defense Systems Sector, supporting the Unmanned Surface and Sub-surface Vessels autonomous systems development. As Chief Unmanned Systems Robotics Engineer, you will play a pivotal role in developing our guiding technology strategy and vision for unmanned maritime systems. You will work with our existing and potential customers to define their needs and develop

Security Automation EngineerJob Title - Security Automation Engineer

Motion Recruitment Partners, LLCCompany Name - Motion Recruitment Partners, LLC

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Arlington, Virginia, USA

Full-time

Security Automation Engineer As a Security Automation Engineer, you will provide technical leadership and strategic guidance on security automation and secure system engineering to both internal and external stakeholders. This role is responsible for designing, implementing, and maintaining automation tools and pipelines that support the Enterprise Security team's mission. The company is located in Reston, VA and will remain 100% remote. This role is a 6-month contract-to-hire. What You Will Be

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Reston, Virginia, USA

Full-time

HPC Data Storage EngineerJob Title - HPC Data Storage Engineer

American Systems CorporationCompany Name - American Systems Corporation

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Arlington, Virginia, USA

Full-time

Overview AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Test & Evaluation, Program Mission Support, Engineering & Analysis, and Training. Responsibilities As a HPC Data Storage Engineer with AMERICAN SYSTEMS you will have the opportunity to do the following: Manage where data is storedCapacity planning and management, performance management, metrics reporting, st

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Chantilly, Virginia, USA

Full-time

Senior Detection and Response EngineerJob Title - Senior Detection and Response Engineer

Costar GroupCompany Name - Costar Group

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Arlington, Virginia, USA

Full-time

Senior Detection and Response 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 estat

Cyber Host Forensic Analyst IIJob Title - Cyber Host Forensic Analyst II

NightwingCompany Name - Nightwing

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Arlington, 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

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Herndon, Virginia, USA

Full-time

Cyber Security EngineerJob Title - Cyber Security Engineer

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Job DescriptionDescription We are seeking a Cyber Security Engineer who is responsible for developing and implementing advanced security solutions to defend critical systems, networks, and data against evolving cyber threats. This role combines technical expertise in both software and hardware to support the design and deployment of defensive cyber measures. The engineer conducts research on current and emerging cyber threats, identifies vulnerabilities, and ensures that development environments

Java/J2EE Senior DeveloperJob Title - Java/J2EE Senior Developer

Apex SystemsCompany Name - Apex Systems

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McLean, Virginia, USA

Full-time

Job#: 2080244 Job Description: Position: Java/J2EE/Python Senior Developer Industry: Financial Services Location: McLean, Virginia Hours: M-F, onsite Requirements: Responsibilities: Develop and maintain Python services for model training and inference. Implement Java services to bridge communication between client callers and Python services. Conduct performance tuning and stress testing of models. Identify and resolve issues during model reconciliation processes. Address software security vul

Cloud EngineerJob Title - Cloud Engineer

SAICCompany Name - SAIC

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Chantilly, Virginia, USA

Full-time

Job ID: 2507290 Location: CHANTILLY, VA, US Date Posted: 2025-07-07 Category: Software Subcategory: SW Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC's Space & Intel Business Group, USG Mission and Information Technology Division, is seeking a Cloud Developer to accelerate the timely, reliable, and secure delivery of open source data, informa

IT Security EngineerJob Title - IT Security Engineer

LeidosCompany Name - Leidos

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Springfield, Virginia, USA

Full-time

Security EngineerJob Title - Security Engineer

LeidosCompany Name - Leidos

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Sterling, Virginia, USA

Full-time