Senior Frontend Security Engineer – React/Next.js

Our client is a leader in innovative software security solutions, focusing on cutting-edge security platforms that safeguard web applications and user data.

• At least 7 years of frontend development experience with expertise in React, Angular, or Vue.
• Proven experience mitigating security vulnerabilities at the code level, including XSS, CSRF, and supply-chain attacks.
• Strong proficiency in TypeScript, unit and e2e testing (Cypress, Playwright), and CI/CD processes.
• Experience connecting frontend systems to GCP microservices with type-safe API contracts (REST, GraphQL, gRPC).
• Demonstrated leadership in guiding engineering teams and influencing technology direction.
• Broad technical skill set with problem-solving abilities.
• Fluent English, both written and spoken.

Nice to have:

• Experience architecting solutions for operational problems or opportunities.
• Respected reputation for quality development and impactful contributions.
• Holistic problem-solving mindset with focus on long-term impact.

• Develop and deliver production-ready code focusing on React Server Components, Server Actions, and Partial Pre-rendering.
• Architect and implement 'Security at the Edge' layers within Next.js.
• Build and maintain Content Security Policies, secure cookie management, and authentication flows using OAuth2/OpenID Connect.
• Prevent frontend vulnerabilities such as XSS, CSRF, and clickjacking.
• Connect frontend architectures to GCP-based microservices via type-safe API contracts using REST, GraphQL, or gRPC.
• Mentor teams on security best practices and foster a culture of quality and continuous improvement.
• Lead automation of security checks and optimize developer workflows.
• Stay updated with frontend and security trends and guide teams toward innovative solutions.

Only candidates with an existing legal right to work in the European Union will be considered for this role.