2,002,097open jobs
119,041companies
246,826added this week
Browse all
Salary
$108k – $195k per year
Location
In office (Ashburn)
Seniority
Staff · 8+ years exp
Visa
H-1B filings in 12 months: 50 · for this role: 4 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Jul 13, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

The Department of Homeland Security (DHS), Customs and Border Protection (CBP) Cyber Security Directorate (CSD) Security Operations Center (SOC) is a US Government program responsible to prevent, identify, contain and eradicate cyber threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area networks/wide area networks (LAN/WAN), commercial Internet connection, public facing websites, wireless, mobile/cellular, cloud, security devices, servers and workstations. The CBP SOC is responsible for the overall security of CBP Enterprise-wide information systems, and collects, investigates, and reports any suspected and confirmed security violations.

Primary Responsibilities

Leidos is looking for an Application Security Engineer to support:

Application Security Operations and Maintenance, Application Security Configuration Management and Application Security Logging and Vulnerability Management :

  • Ensure continuous monitoring of all CSD managed applications and implement an alerting system for critical incidents
  • Participate in market research to identify new security solutions as required to avoid obsolescence and to improve the overall security posture
  • Develop, deploy, maintain, and/or assist in the implementation and integration of Machine Learning (ML) and Artificial Intelligence (AI) into CBP’s security tool suite.
  • Integrate security best practices into the software development life cycle (SDLC) and ensure security is embedded from design to deployment.
  • Utilize SAST tools to analyze source code for vulnerabilities.
  • Work closely with development teams and ISSOs to remediate identified security issues.
  • Conduct security assessments using Microfocus WebInspect and other DAST tools.
  • Collaborate with development teams to address and remediate dynamic security findings.
  • Implement and manage container security tools, with a focus on Anchore, to ensure secure container deployments.
  • Provide recommendations for secure container orchestration.
  • Work on ensuring systems and applications comply with Security Technical Implementation Guide
  • Establish and maintain the definitive current basis for control and status accounting of application systems and their configuration items.
  • Select configuration items at appropriate levels for application products to facilitate documentation, control
  • Tune logging capabilities for efficiency, identify shortfalls, and recommend improvements and new technologies for application logging.
  • Support the CSD Service Desk in managing and executing the Vulnerability Identification and Remediation process for applications.

Basic Qualifications

  • BS degree in Information Technology, Software Engineering, or related field and 8 - 12 years of prior relevant experience
  • 3+ years of prior experience in application security with a focus on SAST, SCA, DAST
  • Knowledge of secure coding practices and integration into SDLC
  • Familiarity with common security frameworks and standards
  • Strong programming/scripting skills
  • Excellent communication and collaboration skills
  • Working in an Agile project management environment
  • Must have a Top Secret Clearance with SCI
  • Must be able to report into the Ashburn VA office up to 5 days per week.

Preferred Qualifications

  • Master’s with 1-2 years of prior experience in application security with a focus on SAST, SCA, DAST
  • Experience with data engineering tools such as Kubernetes/Rancher, Cloudera
  • Experience with Configuration Management and IaC tools such as Salt or Ansible
  • Experience with scripting languages, CI/CD tools, Elasticsearch, or Gitlab
  • Experience working in an air-gapped environments
  • Experience working in large computing environments (> 1,000 end-points)

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:

July 13, 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.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,002,097 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Security
Similar stack
Same company
Ashburn
≈ $101k – $194k per year (Estimated) · In office · Contractor · Chicago
DevOps
Linux
Windows
Cybersecurity
Microsoft Defender
Tanium
Apply
$104k – $166k per year · Remote (United States) · Public Trust · 8+ years exp · High School Diploma · United States
DevOps
Azure DevOps
GitHub Actions
Azure
Cybersecurity
Nessus
Microsoft Defender
NIST 800-53
Zero Trust
Least Privilege
Management
Agile
Apply
$95k – $115k per year · In office · Full-Time · 2+ years exp · Bachelor's Degree · Chicago
Apply
$92k – $149k per year · In office · 2+ years exp · Bachelor's Degree · Redlands
Python
Java
Ruby
C++
Perl
DevOps
Linux
Windows
Cybersecurity
OWASP Top 10
GDPR
FedRAMP
CVE
Apply
$114k – $171k per year · In office · TS/SCI · Full-Time · 8+ years exp · High School Diploma · Aurora
DevOps
Splunk
IAM
Cybersecurity
Nessus
Apply
≈ $77k – $160k per year (Estimated) · Hybrid · Full-Time · Portsmouth
Management
Agile
Apply
$144k per year · In office · TS/SCI · Full-Time · Ashburn
AI/ML
ChatGPT
LLM
Cybersecurity
MITRE ATT&CK
Cyber Kill Chain
Apply
$80k – $130k per year · In office · Full-Time · 1+ year exp · Ashburn
DevOps
CI/CD
Apply
≈ $83k – $164k per year (Estimated) · In office · Full-Time · 8+ years exp · Bachelor's Degree · Ashburn · Irving · Irvine · Chicago · Cary
Apply
≈ $185k – $395k per year (Estimated) · In office · Full-Time · Bachelor's Degree · Ashburn
Python
AI/ML
Recommender Systems
DevOps
GCP
Azure
AWS
TCP/IP
DHCP
BGP
MPLS
Apply
≈ $24k – $44k per year (Estimated) · In office · Full-Time · Master's Degree · Ashburn
Apply
See all jobs
This is one of many
2,002,097 more open roles from verified company boards, updated every day.