Alexander U.

Senior Full-Stack & Frontend Specialist (7+ Years Exp) | Angular 20, Ionic 8 & Web Accessibility (WCAG / ADA) Are you looking for a Senior Frontend Engineer who can architect scalable web apps from scratch, lead engineering teams, or fix complex WCAG/ADA accessibility compliance issues? With +6,000 hours logged on Upwork, a 100% Job Success Rate, and a Computer Engineering degree, I help companies turn complex technical requirements into high-performance, maintainable digital products. My core focus is not just writing clean code, but understanding the "helicopter view" of your system—balancing business goals with technical requirements, deadlines, and UI performance. 🚀 Core Expertise & Technical StackFrontend Architecture & Web Apps: - Angular (v5 up to v20+ with Signals & Reactive State), React.js, Next.js, TypeScript, RxJS, PWA. - Mobile Development: Cross-platform iOS & Android apps built with Ionic 8, Capacitor, and Cordova. - Web Accessibility (A11y / WCAG 2.2 / ADA): Full audits, semantic HTML refactoring, dynamic JS/PHP/Liquid patches, screen reader optimization (NVDA), and focus management for e-commerce (Shopify/WordPress) & SaaS platforms. - Data Visualization & 3D Web: High-density dashboards and interactive experiences using Three.js, ApexCharts, ECharts, GSAP, and Lottie. - Backend & Integrations: NestJS, Node.js, Firebase, Strapi, REST/WebSockets, AI Vision/OCR pipelines, and Stripe/PayPal payment systems. 🤝 Beyond Coding: Technical Leadership & Soft Skills Building great software requires more than just frameworks. Having led multidisciplinary engineering teams, I bring strong soft skills to your project: - Architecture & Planning: Designing clean, modular greenfield apps from scratch. - Team Leadership & Client Communication: Translating business vision into technical tasks, negotiating features, and managing deadlines effectively. - Agile Workflow: Autonomous execution using Jira, Trello, Git-flow, and CI/CD best practices. 💼 How We Can Work Together Whether you need a Lead Frontend Developer to build a complex dashboard, an Accessibility Specialist to protect your platform from ADA compliance risks, or a Senior Angular/Ionic Developer to spearhead your mobile app, I'm here to help. 📩 Have a project or technical challenge to discuss? Send me a message and let’s jump on a quick discovery call!