Darragh Nolan

Senior Frontend Engineer | TypeScript

Sigma Software

Jan 2022 - Sep 2025 (3 years 9 months)

Led development of multiple projects using TypeScript-based frameworks (Angular, React, Next.js), delivering responsive, high-performance web applications. Designed scalable frontend architectures with reusable components, improving development efficiency and long-term maintainability. Integrated RESTful APIs and third-party services to ensure seamless backend communication and feature delivery. Optimized performance through code splitting, lazy loading, and advanced state management, significantly improving Core Web Vitals and reducing load times. Collaborated in Agile teams, consistently delivering features ahead of schedule with high quality and strong cross-functional alignment.

Frontend Lead | TypeScript & Angular Expert

Rithum

May 2017 - Dec 2021 (4 years 8 months)

Led the delivery of nine Angular projects, ensuring 100% on-time completion and achieving 5% cost savings through reusable components and scalable architecture. Developed and optimized Angular and TypeScript applications using Angular Material, PrimeNG, and NG Bootstrap, driving a 40% sales uplift and improved user engagement. Enhanced performance with AOT compilation, lazy loading, and OnPush change detection, reducing load times and significantly improving Core Web Vitals. Collaborated closely with designers and backend engineers to deliver pixel-perfect, accessible Uls with seamless API integration.

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Senior Frontend Developer | React & Next.js & Web3

Melonport

Aug 2015 - Mar 2017 (1 year 8 months)

Built scalable, high-performance Web3 applications using React, Next.js, TypeScript, and JavaScript, applying clean architecture and reusable component design principles. Developed server-side rendered (SSR) and static site generation (SSG) solutions in Next.js to improve SEO, performance, and user engagement. Integrated EVM-compatible smart contracts via ethers.js and web3.js, handling wallet connections, transactions, and contract interactions securely. Implemented Subgraph integrations (The Graph) for real-time on-chain data querying and improved dApp responsiveness. Optimized application performance with code splitting, lazy loading, and component-level tuning for smoother blockchain interactions. Collaborated with designers, backend, a

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Mid/Sr. Frontend Developer

MuchMore Software House

Jan 2015 - Jun 2015 (6 months)

Joined as a Middle Frontend Developer and promoted to Senior for exceptional performance. Developed and maintained React-based web applications with a focus on responsive design and smooth user experiences. Customized and optimized CMs platforms including WordPress, WooCommerce, and Shopify, delivering tailored solutions for clients. Integrated APIs, improved site performance, and implemented SEO best practices to enhance visibility and engagement. Collaborated closely with designers and backend developers to ensure high-quality, on-time project delivery.

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