Senior Application Security Consultant (SAST/DAST/OWASP)

Senior Application Security Consultant (SAST/DAST/OWASP )/DevSecOps Security - Banking - London

Secure SDLC | SAST | DAST | Threat Modelling | Cloud Security | CI/CD

Location: London (Hybrid - 8 days onsite per month)

Contract: 12 Months + extension

Rate: £500-£550 per day (Umbrella)

The Opportunity

We're looking for an experienced Senior Application Security Consultant/DevSecOps Security Architect to join a high-performing Cyber Security function within a large enterprise technology environment.

Working alongside software engineering, cloud, architecture and DevOps teams, you'll play a key role in embedding security throughout the Software Development Lifecycle, ensuring applications are designed, developed and deployed securely.

This is an excellent opportunity for someone passionate about Secure-by-Design, DevSecOps and modern Application Security within a large-scale cloud environment.

Key Responsibilities

• Lead application security reviews across business-critical applications and cloud platforms.
• Conduct security architecture and secure design reviews.
• Perform application security risk assessments and define security requirements.
• Lead Threat Modelling workshops using STRIDE, MITRE ATT&CK or similar methodologies.
• Embed Secure SDLC principles into engineering teams.
• Integrate security tooling into CI/CD pipelines and DevSecOps processes.
• Review and analyse SAST, DAST and Software Composition Analysis (SCA) findings.
• Work closely with development teams to prioritise vulnerability remediation.
• Define security testing requirements and support penetration testing activities.
• Produce security standards, technical guidance and best practice documentation.
• Act as the Application Security SME across multiple technology programmes.

Essential Skills

Application Security

• Secure Software Development Lifecycle (SSDLC)
• OWASP Top 10
• Secure Coding
• Secure Design Reviews
• API Security
• REST APIs
• Microservices Security
• Application Security Risk Assessments

Threat Modelling

• STRIDE
• MITRE ATT&CK
• Security Architecture
• Risk Assessments

DevSecOps

• CI/CD Security
• GitHub Actions
• GitLab
• Jenkins
• Azure DevOps
• Security Automation
• Shift Left Security

Security Testing

• SAST
• DAST
• SCA
• Vulnerability Management
• Penetration Testing

Cloud Security

• AWS, Azure or GCP
• Kubernetes
• Docker
• Container Security
• Cloud Security Best Practices

Security Tooling

Experience with one or more of:

• Checkmarx
• Fortify
• SonarQube
• Veracode
• Semgrep
• Burp Suite
• OWASP ZAP
• Snyk
• Trivy
• Prisma Cloud
• Aqua
• Wiz

Ideal Background

You'll ideally have:

• 8+ years in Cyber Security
• Strong Application Security or DevSecOps experience
• Experience working directly with software engineering teams
• Experience embedding security into CI/CD pipelines
• Strong knowledge of Secure SDLC
• Experience conducting Threat Modelling sessions
• Excellent stakeholder management and communication skills
• Previous experience within Banking, Financial Services, Insurance or another highly regulated enterprise environment

Contract Details

• 12-month contract
• £500-£550 per day (Umbrella)
• Hybrid working - 8 days onsite per month in London
• Immediate interview availability preferred

*Rates depend on experience and client requirements