frontend developer web security
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Описание
Cognizant provides IT services, IT consulting, and business consulting and services. The company focuses on analyzing and securing browser-based applications, including web extensions, through cybersecurity assessments, threat detection, and process automation.
Задачи
- Analyze web extension code using static and dynamic analysis techniques to detect security violations and malicious behavior
- Perform JavaScript reverse engineering and debugging to understand complex or obfuscated codebases
- Identify, document, and report security vulnerabilities, including root cause analysis and recommended remediation steps
- Support the takedown and investigation of malicious browser extensions
- Conduct regular code reviews and provide constructive feedback aligned with secure coding best practices
- Analyze JavaScript code to identify malicious activities and reverse engineer the code when necessary
- Define and implement detection rules and security patterns to identify violations at scale
- Identify emerging threat patterns and share insights to enhance team detection capabilities
- Drive innovative ideas, recommend improvements, and help design and implement automation for existing processes
- Act as a technical consultant, providing guidance, clarification, and technical grooming to team members
- Collaborate with cross-functional teams and maintain clear technical documentation
- Contribute to continuous improvement of security workflows and tooling
Требования
- Strong hands-on experience with JavaScript, including closures, prototypes, variable scope, hoisting, callbacks, and OOP principles
- Hands-on experience with HTML and CSS
- Knowledge of JSON, AJAX, and ES6/ES7 standards
- Good understanding of Node.js and Webpack
- Experience with front-end frameworks or libraries such as React, Angular, or jQuery
- Strong code analysis, debugging, and reverse engineering skills, particularly in JavaScript applications
- Ability to analyze JavaScript code and identify malicious activities effectively
- Good communication skills and ability to work as a collaborative team player
- English required
- Nice to have: Cybersecurity experience or strong security knowledge, familiarity with DAST and SAST methodologies, knowledge of cybersecurity open-source tools such as Burp Suite and Nmap or similar tools, understanding of obfuscation and de-obfuscation techniques, experience writing technical and security assessment reports
Условия
- English is required
- Based in Lisbon, Portugal
- Hybrid work schedule
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