Jobs in the United States

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Added 10 mins ago
O
Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Meet operational readiness requirements through design, implementation, testing, and documentation.
Added 14 mins ago
SR
Database Administrator
Salt River Pima-Maricopa Indian Community
Scottsdale, AZ
- $134,290 to $191,366 USD / year
3. Provides logical and physical database designs, create database objects and applies database security in support of in-house Java and PeopleSoft People Tools application development.
Added 25 mins ago
Secure Software Intern (Summer 2027)
RTX Corporation
woburn, MA
Contribute to the design, development, integration, and testing of real‑time embedded software and firmware with a focus on system security and integrity.
Added 26 mins ago
Senior Manager, Full-stack Engineer-People Leader
Capital One
Cambridge, MA
Lead teams utilizing programming languages like Java, Scala, Python, Go, Node.js, JavaScript and TypeScript, Open Source RDBMS and NoSQL databases, Container Orchestration services…
Added 27 mins ago
EG
Full Stack Developer (Java & React), Risk and Compliance AI Platform
Eliassen Group
Boston, MA
- $75 to $80 USD / hour
We are seeking a highly motivated full stack developer to join a focused remote software development team. The team turns complex software requirements into reliable, scalable solutions for…
Added 1 hour ago
Software Development Engineer
Amazon.com Services LLC
Seattle, WA · New York, NY
…applications, tools, systems, and services using: C#, C++, Java, or Perl…
Added 1 hour ago
Senior Staff Software Engineer- UKG Ready Payroll
UKG
Lowell, MA · Lowell
This role requires strong Java expertise, experience with cloud-native architectures, and the ability to build and integrate AI-powered capabilities while following software engineering…
Added 1 hour ago
Staff Software Engineer-UKG Ready Payroll
UKG
Lowell, MA · Lowell
Establish standards for testing, automation, deployment, and production readiness.
Added 1 hour ago
Sr. Application Security Engineer
American Express Global Business Travel
Cheyenne, WY
…application development into application security, bringing a developer's mindset to security and operations, and will mentor others while helping shape how the organization builds and…
Added 1 hour ago
EG
Full Stack Developer (Java & React), Risk and Compliance AI Platform
Eliassen Group
Cheyenne, WY
- $75 to $80 USD / hour
We are seeking a highly motivated full stack developer to join a focused remote software development team. The team turns complex software requirements into reliable, scalable solutions for…
Added 1 hour ago
Sr. Application Security Engineer
American Express Global Business Travel
Providence, RI
…application development into application security, bringing a developer's mindset to security and operations, and will mentor others while helping shape how the organization builds and…
Added 1 hour ago
EG
Full Stack Developer (Java & React), Risk and Compliance AI Platform
Eliassen Group
Providence, RI
- $75 to $80 USD / hour
We are seeking a highly motivated full stack developer to join a focused remote software development team. The team turns complex software requirements into reliable, scalable solutions for…
Added 1 hour ago
Sr. Application Security Engineer
American Express Global Business Travel
Frankfort, KY
…application development into application security, bringing a developer's mindset to security and operations, and will mentor others while helping shape how the organization builds and…
Added 1 hour ago
EG
Full Stack Developer (Java & React), Risk and Compliance AI Platform
Eliassen Group
Frankfort, KY
- $75 to $80 USD / hour
We are seeking a highly motivated full stack developer to join a focused remote software development team. The team turns complex software requirements into reliable, scalable solutions for…
Added 1 hour ago
Software Engineer - E2
Lockheed Martin
Cape Canaveral, FL · Cape Canaveral
Programming experience in one or more of the following: C/C++, LabView, Python, Java, TestStand
Added 1 hour ago
sUAS/Drone Software Engineer Asc - Early Career
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
…should also be able to develop and conduct effective software testing to ensure quality and reliability. They should have experience writing embedded firmware for microcontrollers. They…
Added 1 hour ago
sUAS/Drone Software Engineer - Intern
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
…should also be able to develop and conduct effective software testing to ensure quality and reliability. They should have experience writing embedded firmware for microcontrollers. They…
Added 1 hour ago
sUAS/Drone Software Engineer - Intern
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
…should also be able to develop and conduct effective software testing to ensure quality and reliability. They should have experience writing embedded firmware for microcontrollers. They…
Added 1 hour ago
sUAS/Drone Software Engineer Asc - Early Career
Lockheed Martin
San Luis Obispo, CA · San Luis Obispo
…should also be able to develop and conduct effective software testing to ensure quality and reliability. They should have experience writing embedded firmware for microcontrollers. They…
Added 1 hour ago
Software Engineer
Lockheed Martin
Cape Canaveral, FL · Cape Canaveral
Programming experience in one or more of the following: C/C++, LabView, Python, Java, TestStand
Added 1 hour ago
Systems Engineer Sr - E3
Lockheed Martin
Littleton, CO · Littleton
This role of software integrator will be responsible for the integration, testing, and deployment of complex software systems within Lockheed Martin mission-critical environments. This role…
Added 1 hour ago
Information Assurance Security Engineer (IASE) / Information Systems Security Engineer (ISSE)
LEIDOS, INC.
Suitland, MD
…with hands on engineering, vulnerability remediation, security testing, and architecture support to help protect mission critical systems and…
Added 1 hour ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
Ensure software quality, security, scalability, and reliability through rigorous development and testing practices.
Added 1 hour ago
MS
Full Stack Developer Junior-Mid
Millennial Software Solutions Inc
Chantilly, VA
- $80,000 to $140,000 USD / year
Millennial Software is seeking a Junior-Mid Full Stack Software Developer to join our collaborative team supporting a Government customer. This is for a future contract slated to start in…
Added 1 hour ago
Software/ Principal Software Engineer
Northrop Grumman
Huntsville
Support testing activities including unit and functional testing, code coverage analysis, and static code analysis; contribute to continuous improvement of test effectiveness and automation.

LEIDOS, INC.

Information Assurance Security Engineer (IASE) / Information Systems Security Engineer (ISSE)

Suitland, MD, United States

Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

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Job details

Pay: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.
Posting language: English
Posted: Oct 30, 2026

Original job description

Information Assurance Security Engineer (IASE) / Information Systems Security Engineer (ISSE) Location: Suitland, MD Clearance: Active TS/SCI

Leidos is hiring a hands-on Information Assurance Security Engineer (IASE) / Information Systems Security Engineer (ISSE) to support a complex, mission-driven enterprise environment in Suitland, MD.

In this engineering-focused role, you will actively secure, administer, harden, and maintain critical systems and infrastructure while collaborating across network, systems, cybersecurity, and architecture teams to continuously strengthen and evolve the organization’s overall security posture. You will combine deep technical security expertise with hands on engineering, vulnerability remediation, security testing, and architecture support to help protect mission critical systems and capabilities.

This role is open to candidates across a range of experience levels. The scope of the position and corresponding compensation will be aligned with the selected candidate’s background and expertise.

Primary Responsibilities

Serve as a primary security engineering resource for enterprise infrastructure, providing hands on administration, configuration, security hardening, troubleshooting, and vulnerability remediation.
Research and evaluate cybersecurity tools, technologies, and methodologies to identify opportunities to strengthen enterprise security.
Participate in architecture and engineering reviews and provide security recommendations for new capabilities, technologies, and infrastructure changes.
Troubleshoot complex security issues across storage, networking, operating systems, authentication, and enterprise infrastructure.
Conduct vulnerability assessments, ethical hacking, and penetration testing to identify and address security risks.
Review and harden storage protocols and services, including NFS, SMB/CIFS, iSCSI, and management interfaces, based on operational and security requirements.
Apply and validate applicable DISA Security Technical Implementation Guides (STIGs), Security Requirements Guides (SRGs), vendor security guidance, and industry security best practices.
Configure and maintain secure administrative access using technologies and principles such as SSH, HTTPS/TLS, role based access control (RBAC), centralized authentication, and least privilege.
Develop and deliver training on cybersecurity tools, technologies, and processes.

Required Qualifications

Bachelor’s degree in Cybersecurity, Electrical Engineering, Information Technology, Information Assurance, or a related field with 8+ or 12+ years of experience; Master’s degree with 6+ or 10+ years of experience. Additional relevant experience may be considered in lieu of a degree.
Active TS/SCI clearance in DISS and required program access.
Security engineering experience, including experience with DoD RMF, ICD 503, and/or the NIST Risk Management Framework.
Extensive experience with Intelligence Community (IC), Department of Defense (DoD), Defense Information Systems Agency (DISA), NAVINTEL Cybersecurity, Fleet Cyber Command (FLTCYBERCOM), and DoDIIS processes, tools, systems, reporting mechanisms, and requirements supporting Assessment and Authorization (A&A).
Software development experience using Java, C, C++, or other programming or scripting languages, including experience designing and developing host based and network based scanning tools.
Experience with Security Content Automation Protocol (SCAP) based tools and specifications.
Experience installing, configuring, testing, deploying, operating, and maintaining enterprise network based scanning and reporting tools such as Trellix/ESS, ACAS, RedSeal, Evaluate STIG, SteelCloud ConfigOS, and STIG Manager.
Extensive experience hardening modern Unix operating systems, such as Oracle Solaris 10/11 and RHEL, as well as Microsoft Windows environments using Security Technical Implementation Guides (STIGs).
Extensive experience securing systems and software in accordance with IC, DoD, and industry security best practices.
Experience developing security controls, testing methodologies, and test procedures for systems, cloud based architectures, and Cross Domain Solutions (CDS).
Demonstrated ability to take a proactive, results oriented approach while building effective customer and team relationships.

Required Certifications

Active IAM Level III DoD 8140 approved baseline certification, such as CISSP or SecurityX.

NITESONI DABAOPP1

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

October 30, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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More about this job

Skills

Cybersecurity
Troubleshooting
Research
Troubleshoot
Penetration testing
Security threats
Security regulations
Provide training
Electrical engineering
Computer technology
Risk management
Reporting
Software development
Oracle Java
C
C++
Red Seal
UNIX
Oracle Solaris
Microsoft Windows
Test procedures
Identity and access management
CISSP

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