Front-End Security Developer (React.js | AWS)

Job Description

Project description We are a Fortune 500 global IT services leader dedicated to delivering excellence for our customers and colleagues. Our more than 130,000 people in 60-plus countries are entrusted by our customers to deliver transformative technologies to ensure the success, safety and well-being of businesses and people around the world. We leverage the power of partnerships through our curated DXC ecosystem of leading technology providers. By combining strengths and expertise globally, we create solutions and deliver greater outcomes for customers across their entire IT estate. DXC is an employer of choice with strong values, and fosters a culture of inclusion, belonging and corporate citizenship. Responsibilities Develop secure, scalable frontend applications using React.js, JavaScript/TypeScript, and modern state management tools (Redux, Context API, MobX). Implement robust authentication and authorization flows with OAuth2, OIDC, JWT, and AWS Cognito. Ensure code security and quality by using SAST/DAST tools (e.g., Veracode, SonarQube) and integrating checks into CI/CD pipelines. Collaborate across teams (DevOps, backend, security) to build cloud-native apps using AWS services like ECS Fargate, IAM, and CloudWatch. Conduct thorough testing and monitoring using Jest, Cypress, and observability tools like AWS X-Ray and CloudWatch Skills Must have Minimum 3 years of professional experience with React.js, JavaScript (ES6+), and preferably TypeScript Strong expertise in React Hooks, component-based architecture, and state management (Redux, Context API, or MobX) Solid understanding of frontend security principles including XSS, CSRF, secure token handling, and secure API consumption Hands-on experience implementing authentication and authorization flows using OAuth2, OIDC, JWT, and AWS Cognito Experience with AWS services for frontend/cloud apps: ECS Fargate, IAM, Secrets Manager, VPCs, CloudFront, and WAF Proficiency with SAST/DAST tools (Veracode, SonarQube, Snyk, or similar) and remediating vulnerabilities in codebases Familiarity with CI/CD pipelines and integrating security and code quality checks (Sonar scans, code coverage, unit tests) Experience monitoring applications using AWS CloudWatch, OAM, X-Ray, or similar observability tools Knowledge of CORS, HTTPS, secure headers, CSP, and best practices for secure frontend development Experience with unit, integration, and end-to-end testing frameworks (Jest, React Testing Library, Cypress) Strong problem-solving and debugging skills with the ability to analyze and fix security and performance issues Comfortable collaborating with backend, DevOps, and security teams in a cloud-native environment Proactive in learning and applying new security practices, frameworks, and tools Nice to have Airlines experience