Cybersecurity Engineer – Application/Software Security

Cybersecurity Jobs; Norfolk (VA); On-site; USD 140,000 - 170,000; Full time

Job summary

Data Systems Analysts, Inc. in Charlottesville, VA seeks a TS/SCI-cleared Cybersecurity Engineer focused on application and software security for an onsite role at NGIC.

The engineer will secure software supporting DoD systems through testing, code review, vulnerability validation, and tool integration. The role owns software security, provides guidance for securing apps and APIs, applies adversary techniques and threat modeling, and supports RMF/ATO activities with clear documentation and

Qualifications

• BS degree in Computer Science, Software Engineering, Cybersecurity, or related field; experience may substitute.
• TS/SCI Clearance required.
• Minimum 5 years of combined experience in software development, application security, or secure software assessment.
• Hands-on development experience in Python, Java, C#, Go, or JavaScript with back-end APIs and databases.
• Knowledge of OWASP Top 10, CWE, exploitability, and remediation.

Responsibilities

• Own software security for the cyber engineering team and guide securing applications, APIs, and back-end services.
• Perform security testing of applications and validate fixes resolve findings.
• Review source code against secure coding standards to identify vulnerabilities.
• Implement, tune, and maintain SAST, DAST, dependency scanning, and container scanning tools.
• Evaluate security tools and source code for risk and fit for mission.

Skills

Software security

Adversary techniques (MITRE ATT&CK)

Secure coding practices

Back-end APIs & databases

Education

BS degree in Computer Science or related field

Tools

Fortify

SonarQube

Checkmarx

Burp Suite

OWASP ZAP

GitLab

Jenkins

Oracle

PostgreSQL

AWS/GovCloud

Job description

Data Systems Analysts, Inc. is seeking a TS/SCI-cleared Cybersecurity Engineer focused on application and software security for an onsite role at NGIC in Charlottesville, VA. The position is responsible for securing software supporting mission-critical DoD systems through rigorous testing, code review, vulnerability validation, and security tool and process integration.

Role Overview

This position owns software security within the cyber engineering team. The work includes providing technical guidance to strengthen applications, APIs, and back-end services, and ensuring findings are validated and properly addressed prior to release. The engineer applies adversary techniques, threat modeling, and evidence-driven documentation to support RMF and ATO activities.

Key Responsibilities

• Own software security for the cyber engineering team, offering technical guidance for securing applications, APIs, and back-end services.
• Perform security testing of applications and validate that fixes resolve identified findings.
• Review source code against secure coding standards to identify vulnerabilities, insecure design, and exploitable weaknesses.
• Implement, tune, and maintain software security tools, including SAST, DAST, dependency scanning, and container scanning, and integrate them into development and release workflows.
• Evaluate open-source and commercial cyber tools and source code to determine security risk, fit, and mission adaptability.
• Partner with engineers, system admins, architects, ISSOs, and ISSMs to define security requirements and confirm that tools and controls are sufficient.
• Assess risk associated with major software changes, unpatched components, and software reaching end of support.
• Apply adversary techniques (including MITRE ATT&CK) and threat modeling to prioritize findings based on real-world impact.
• Document independent test results, release risk, and technical evidence supporting RMF and ATO activities.
• Communicate software risks, findings, and practical remediation steps to technical teams, system owners, and leadership.

Required Qualifications

• BS degree in Computer Science, Software Engineering, Computer Information Systems, Cybersecurity, or a related field (experience may substitute for degree).
• TS/SCI Clearance.
• CompTIA Security+ (DoD 8140 compliant).
• Minimum 5 years of combined experience in software development, application security, penetration testing, or secure software assessment.
• Hands-on software development experience in at least one language such as Python, Java, C#, Go, or JavaScript, with understanding of back-end services, APIs, and databases.
• Demonstrated experience identifying and validating software vulnerabilities via code review, security testing, or technical assessment.
• Working knowledge of common application weaknesses (OWASP Top 10, CWE), how they are exploited, and how to remediate them.
• Ability to assess exploitability and impact, and communicate clear, practical fixes to engineers and compliance staff.
• Ability to work independently as the primary software security resource on a cybersecurity team.

Technologies and Tools

• Microsoft Copilot, Python, Java, C#, Go, JavaScript
• SAST, DAST, dependency scanning, container scanning
• MITRE ATT&CK, OWASP Top 10, CWE
• Fortify, SonarQube, Checkmarx, Burp Suite, OWASP ZAP
• GitLab, Jenkins, SQL, Oracle, PostgreSQL, AWS/GovCloud
• SBOMs, RMF, NIST SP 800-53, eMASS
• DISA Application Security and Development STIG

Preferred Experience

• Certifications such as GWAPT, OSCP, OSWE, CSSLP, PenTest+, CySA+, SecurityX/CASP+, CEH, CISSP, or other relevant credentials.
• Experience with SAST/DAST tooling including Fortify, SonarQube, Checkmarx, Burp Suite, or OWASP ZAP.
• Penetration testing, red team, or web application testing experience.
• Experience integrating security checks into CI/CD pipelines using GitLab and Jenkins.
• SQL and relational database experience (Oracle, PostgreSQL) and familiarity with ETL workflows.
• Familiarity with containers, AWS/GovCloud, software supply chain security, or SBOMs.
• Familiarity with RMF, NIST SP 800-53, eMASS, and the DISA Application Security and Development STIG.
• Experience supporting DoD, U.S. Army, or Intelligence Community missions.

Location and Compensation

Location: Norfolk, VA (onsite).
Salary: USD 140,000 - 170,000 per year.