davidzagi

• Built full stack features end to end across a React/TypeScript frontend and Node.js and Python (FastAPI) backends, taking work from architecture discussion through implementation, review, and production for enterprise clients. • Shipped a real-time streaming chat interface with React, TanStack Query, and WebSockets/SSE over a Python service processing 100,000+ documents, with source-grounded responses and a reusable component architecture. • Designed and built REST APIs and Node.js services connecting PostgreSQL, Redis, and downstream systems, with OAuth2/SSO authentication securing access for 5,000+ users. • Created the team's AI development tooling: agent-based workflows for PR creation, commit explanation, and content pipelines using Claude, plus shared prompt libraries and onboarding docs that raised team velocity. • Established testing and CI/CD standards (Jest, React Testing Library, GitHub Actions, Docker), reaching full coverage on critical flows and cutting production defects by 40%. • Owned features in 2-week sprints and partnered directly with product managers and non-technical stakeholders to turn requirements into shipped software.

Optimized RemixD terminal, static analysis tab, and setting tab to React/TypeScript architecture, resulting in 20% performance gains and enhanced maintainability. Automated end-to-end testing procedures using Selenium and Nightwatch frameworks, achieving 35% increase in UI coverage and ensuring seamless user experience. Collaborated with the development team to identify and resolve issues, fostering a culture of continuous improvement and delivering high-caliber IDE products to end-users. Implemented continuous integration/continuous deployment (CI/CD) pipelines for efficient development workflows, resulting in a 20% improvement in deployment processes. Led the application integration with Plaid for financial Institution.

Developed a highly efficient Admin Panel using Retool, streamlining administrative workflows and achieving 15% improvement in system configuration management. Led full development lifecycle of team-building app, deploying on AWS for scalability and performance, boosting user satisfaction by 19%. Conducted code reviews to maintain code quality standards and ensure adherence to best practices. Actively participated in Agile methodologies for project management, contributing to efficient project delivery and team collaboration.