Nicholas Duadei Nicholas

Led the design and implementation of a scalable full-stack architecture for a multi-tenant digital platform, accommodating diverse services, users, and complex data flows.

Developed highly responsive and feature-rich frontend interfaces using React, Tailwind CSS, ShadCN UI, and Chart.js, significantly enhancing user experience and performance.

Seamlessly integrated Stripe Connect across frontend and backend, enabling secure payments, recurring billing, wallet funding, and automated coach payouts.

Engineered real-time communication features, including chat, voice/video calls, and livestreams, leveraging GetStream and Context API for robust authentication.

Oversaw server-side API development, database schema design (Node.js/Express, MongoDB), and AWS cloud infrastructure management, ensuring high reliability, security, and scalability.

Developed comprehensive analytics pipelines utilizing MongoDB aggregations and dynamic charts, providing critical insights into user engagement, revenue, and trending metrics.

Optimized frontend data fetching, caching, and state management by implementing React Query, improving application responsiveness and efficiency.

Automated critical platform tasks and enhanced user engagement through the implementation of background jobs, push notifications, and event-driven workflows.

Engineered scalable job discovery and automated application pipelines using Puppeteer, effectively navigating dynamic and JavaScript-heavy job platforms.

Implemented generative AI for intelligent resume parsing, job requirement inference, and context-aware auto-filling of application forms.

Developed a CPU-aware parallel scraping architecture with Node.js child_process, dynamically scaling workers based on system resources to optimize performance.

Stored and enriched scraped job data in a database, creating vector embeddings to enable advanced semantic search and relevance-based matching.

Ensured ethical and robust scraping practices by integrating rate limiting, retries, session management, and CAPTCHA handling through third-party services.

Deployed and containerized automation workloads on AWS ECS (Fargate), achieving fault isolation, scalability, and cost-efficient execution.

Led the development of the MapXpress Marketplace, significantly streamlining vendor management, product listings, and order tracking processes.

Integrated PayPal payment system to facilitate secure deposits and transactions, ensuring a seamless and reliable financial workflow.

Developed robust user authentication features, including signup, login, and account management, to ensure a seamless onboarding experience.

Designed and implemented a referral system that successfully incentivized user engagement and expanded the platform's user base through new user referrals.

Engineered core backend services for Yenreach, a business and job listing platform, achieving over 20% performance improvement.

Designed and implemented scalable APIs with JWT-based authentication, significantly enhancing data security.

Mentored junior developers and enforced coding standards through rigorous pull request reviews, elevating team's full-stack development best practices.

Optimized server performance by applying rate limiting, caching, and query optimizations, reducing server response times and load.

Managed the full feature development lifecycle from conception to deployment, ensuring high availability and system integrity.

Spearheaded frontend development for a no-code AI/ML/data science platform, converting complex user flows into intuitive and responsive interfaces.

Converted wireframes and mockups into fully functional, high-performance web pages using modern frontend technologies.

Collaborated with backend engineers to integrate RESTful APIs, effectively debugging and resolving data flow issues for seamless functionality.

Contributed to timely project delivery by actively participating in daily stand-up meetings and sprint planning sessions.

Performed comprehensive unit testing to identify and resolve bugs, significantly improving overall software quality.

Contributed to the development of the I-Sabi Mobile Application using React and React Native in a collaborative team environment.

Translated UI/UX designs into functional application features and user interfaces.

Provided valuable input during design reviews, assisting UI/UX designers in refining application interfaces.

Integrated WebSocket communication in collaboration with the backend team, enabling real-time updates for online users.

Implemented a centralized logging system, significantly enhancing debugging and monitoring capabilities for improved application performance.

Conducted rigorous testing to ensure optimal screen responsiveness across various devices.