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# Application Security Engineer AppSec

- **Company:** Bjak
- **Location:** London, UK (Remote available)
- **Experience:** Experienced
- **Salary:** £55,672.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Software System Penetration Testing, User Authentication, Burp Suite, Code Review, Cyber Security, Python (Programming Language), Node.Js, Open Web Application Security, Secure Coding, Software Engineering, TypeScript, Software Vulnerability Management, Web Applications, Google Cloud, Software Security, Swift (Programming Language), Backend, Kotlin, Information Technology, Tenable Nessus, Static Application Security Testing, Dynamic Application Security Testing
- **Published:** October 13, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5925524688

## About the Role

* Degree in Computer Science, Cybersecurity, or related discipline, or equivalent experience.
 * 3+ years in application security, penetration testing, or secure software development.
 * Experience implementing and owning SC TRM and BNM RMiT application security and secure SDLC requirements.
 * Strong understanding of OWASP Top 10, OWASP API Security Top 10, web vulnerabilities, API security, and secure design.
 * Hands-on experience with Burp Suite, OWASP ZAP, SAST, DAST, and dependency scanning tools.
 * Experience reviewing TypeScript/Node.js and Python services; familiarity with Swift, Kotlin, AWS, and GCP.
 * Able to work closely with developers, explain findings, and support remediation.

English is our main working language across global teams. Strong English communication is required.

## Description

Secure BJAK's web applications, APIs, and backend services, coordinating with mobile stakeholders on cross-platform risks. Embed security into design, development, testing, and release workflows., * Perform security reviews, code reviews, and testing for web applications, APIs, and backend services.

 * Identify, prioritize, and help remediate injection, broken access control, authentication, and configuration vulnerabilities.
 * Integrate SAST, DAST, software composition analysis, and secrets scanning into CI/CD pipelines.
 * Conduct threat modeling and design reviews for features, APIs, third-party integrations, and major changes.
 * Coordinate with mobile engineers on cross-platform findings and backend controls protecting native iOS and Android clients.
 * Own application security implementation for SC TRM and BNM RMiT, including secure SDLC evidence, vulnerability management, testing, and audit remediation.
 * Provide secure coding guidance, track remediation, retest fixes, and improve developer security awareness.