Lead UI Developer

About the job

About Letitbex AI Letitbex AI is a fast-growing AI-driven technology company focused on building intelligent, scalable, and enterprise-grade solutions. We work at the intersection of AI, data engineering, cloud, and business transformation, helping organizations unlock real value from artificial intelligence. Position: Lead UI Developer Experience Level: 8+ Years Responsibilities • Lead requirement analysis and frontend technical design in collaboration with Product, UX, QA, and Backend teams • Architect, develop, and maintain scalable, reusable frontend applications using Angular, TypeScript, JavaScript, HTML, and CSS/SCSS • Define and enforce frontend best practices for performance, accessibility (WCAG), security, and code quality • Design and govern application state management using NgRx, ensuring predictable and scalable data flow • Oversee frontend–backend integration by consuming REST APIs built on .NET, ensuring smooth data exchange and error handling • Lead and mentor a team of Angular developers and .NET backend developers through code reviews and technical guidance • Drive frontend performance optimization, focusing on Core Web Vitals (LCP, CLS, INP/FID), bundle size reduction, lazy loading, and efficient change detection • Support frontend-related Azure integrations, including environment configuration and SSO/authentication using Azure AD (OAuth2 / OIDC) • Participate in sprint planning, estimations, architectural decisions, and technical roadmap discussions • Collaborate with QA teams to ensure high-quality releases and resolve UI and integration issues Qualifications • 8+ years of experience in frontend or full-stack development with strong Angular leadership experience • Expert-level proficiency in Angular, TypeScript, JavaScript • Strong hands-on experience with RxJS and NgRx for reactive programming and state management • Solid understanding of HTML5, CSS3, SCSS, responsive and mobile-first design • Proven experience integrating REST APIs with .NET backend systems • Strong knowledge of frontend performance optimization and Core Web Vitals • Experience or exposure to Azure services and Azure AD–based SSO implementations • Demonstrated experience in team leadership, mentoring, and code reviews • Experience with unit testing tools such as Jest Nice to Have • Experience with micro-frontend or modular UI architectures • Exposure to CI/CD pipelines and frontend build optimization • Knowledge of enterprise security practices and role-based access control • Experience working on large-scale or enterprise-grade applications

Requirements

• Angular
• TypeScript
• JavaScript
• HTML
• CSS/SCSS
• RxJS
• NgRx
• REST APIs
• .NET
• Azure

Qualifications

• 8+ years of frontend or full-stack development experience
• Expert-level proficiency in Angular, TypeScript, JavaScript

Preferred Technologies

• Angular
• TypeScript
• JavaScript
• HTML
• CSS/SCSS
• RxJS
• NgRx
• REST APIs
• .NET
• Azure

About the company

Letitbex AI is a fast-growing AI-driven technology company focused on building intelligent, scalable, and enterprise-grade solutions. We work at the intersection of AI, data engineering, cloud, and business transformation, helping organizations unlock real value from artificial intelligence.