JavaScript Specialist

Description

Job Summary: Experienced frontend developer to work as a Fraud and Authentication Specialist, with a focus on digital platform security. Key Highlights: 1. Strategic role in building security solutions 2. Focus on attack prevention and architecture strengthening 3. Collaboration with Red Team and Blue Team JavaScript Specialist Requirements: Professional with over 5 years of frontend development experience, to serve as a Specialist in the Fraud and Authentication team for a large-scale digital platform. Will play a strategic role in building security solutions, focusing on attack prevention, malicious injections, and strengthening authentication architecture. Knowledge: * HTML/CSS \- Sass/Less/JSS; * JavaScript and TypeScript; * Angular/React; * Bundlers (Webpack, others); * Consumption of REST APIs; * Testing (Jest, Cypress, others); * Develop and maintain authentication SDKs (native or cross-platform). * Design and implement security architecture applied to fraud and authentication scenarios. * Prevent and mitigate attacks and injection vulnerabilities. * Collaborate with Red Team and Blue Team to strengthen security controls. * Ensure security coverage in SDK integrations with various applications. * Experience handling high-volume data. Advantages: * Experience with agile frameworks and methodologies (Scrum, Kanban); * Experience with a backend language (NodeJS, NestJS); * Familiarity with User Experience (UX) and User Interface (UI) concepts; * Experience with CI/CD pipelines, particularly using Jenkins; Knowledge of modern security frameworks. Experience in large-scale environments (data tech, fintechs, or similar).