Senior Front End Developer (Mumbai)

You'll join Grip Technologies Pvt. Ltd., a Daxko subsidiary, working on FitnessForce, the club management platform used by gyms and fitness businesses around the world. About the role FitnessForce gives gyms and fitness clubs around the world a rapid, intuitive interface for everything from point-of-sale retail to check-in and member management. As a senior frontend developer, you'll own the architecture of our Angular web application, working closely with our .NET Core backend team to turn complex business requirements into clean, reliable user experiences. You'll use AI coding tools like Cursor to move faster, while staying fully accountable for performance, security, and code quality. What you'll do * Design, build, and scale modular, maintainable web applications using Angular and TypeScript * Implement state management and reactive programming patterns with RxJS across POS, member management, and access permission features * Integrate payment gateway SDKs like Stripe Elements, building checkout flows that handle card entry, 3D Secure authentication, and digital wallets * Implement client-side tokenization so card data stays encrypted and never touches our internal state, keeping us PCI compliant * Architect UI components that support dynamic theming for whitelabel clients and build embeddable widgets for international markets * Partner with backend engineering to consume .NET Core APIs efficiently, with smart caching and error handling * Profile and optimize frontend performance across large, data-heavy dashboards What you'll bring * 6 to 8 years of experience building complex, data-intensive web applications * Deep expertise in Angular (recent versions), TypeScript, HTML5, and SCSS/CSS3 * Experience using AI coding assistants in production, with the fundamentals to evaluate and support AI-generated frontend code * Advanced experience with RxJS and state management patterns like NgRx * Direct experience building frontend checkout flows and working with paym