Web Security Engineer JavaScript

Overview

As Web Security Engineer, you will fortify web applications by applying offensive security practices within a cross-functional team. You’ll bridge Security and Engineering to embed secure coding and resilient design across the SDLC, focusing on penetration testing and reverse engineering. The role blends hands-on security work with guidance to developers, shaping secure architecture at scale. It offers remote flexibility with periodic London office collaboration and strong career progression.

Pay / Benefits

• salary up to 80k
• bonus
• equity
• excellent career progression

Responsibilities

• Perform offensive web security testing and penetration testing
• Conduct reverse engineering and vulnerability assessments
• Provide expert guidance on secure coding practices
• Influence architecture and design decisions to embed security
• Collaborate closely with web development teams to build secure web applications
• Embed security throughout the software development lifecycle

Key requirements

• Strong experience in web application security
• Offensive security testing and reverse engineering expertise
• Deep understanding of modern web vulnerabilities and mitigations
• Commercial JavaScript experience; TypeScript knowledge highly desirable
• Comfort with writing and reviewing production code
• Collaborative and pragmatic with engineering teams

• collaborative
• pragmatic
• strong communication
• web application security
• offensive security testing
• penetration testing

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