Senior Application Security Engineer
AGS
Senior Security Engineer – Secure Code Review
San Francisco, California
On-site | Full-Time
My client is seeking a Senior Security Engineer to join their Application Security practice. This role is ideal for a hands-on AppSec professional with a strong software development background and deep experience performing secure code reviews, analysing CVEs, and working with SAST and SCA tools in real production environments.
Responsibilities
- Perform manual and tool-assisted secure code reviews across Java and C#/.NET applications
- Analyse and triage vulnerabilities in open-source libraries and frameworks (CVE analysis)
- Assess applications against OWASP Top 10 and identify exploitable security issues
- Provide developers with actionable remediation guidance and architectural recommendations
- Use AI-assisted code analysis tools to accelerate vulnerability detection and validate findings
- Support vulnerability management, risk assessments, and compensating controls such as WAF rules
- Research emerging open-source vulnerabilities and produce mitigation guidance
Must-Have Skills
- 5+ years in software development, application security, or both
- Hands-on experience with SAST and/or SCA tools (e.g. Checkmarx, SonarQube, Black Duck)
- Real-world experience performing CVE analysis and exploitability triage
- Strong Java proficiency (JDK 8–21, Spring, Maven/Gradle)
- Ability to review and understand complex codebases written by others
- Solid understanding of OWASP Top 10 and secure coding principles
Preferred Skills
- C#/.NET and ASP.NET Core experience
- DAST tools such as Burp Suite or OWASP ZAP
- Experience writing or validating WAF rules
- Secure SDLC, threat modelling, or security champion programmes
- Consulting or professional services background
- Cloud application security experience (AWS, Azure, or GCP)
- Certifications such as CSSLP, GWEB, GPEN, or OSCP
Vacancy posted 4 days ago
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