Heisly Park

About

Senior Full Stack Developer with 6+ years of experience building scalable web applications using React, Next.js, Node.js, AWS, and RESTful APIs. Proven track record delivering high-quality software for startups and enterprise teams, with a focus on performance, maintainability, and collaboration across product and design.

Experience

• Lead Staff Developer · TechNova Solutions08-01-2022 – 12-31-2025

  Designed and architected scalable APIs and distributed backend services, improving system performance by 30% and reducing server costs through optimized caching and data flow. Led development of a modern React/Next.js frontend platform serving thousands of daily users, improving UX scores and reducing page load times by 40%. Directed a team of 4 developers, performing code reviews, mentoring junior engineers, and establishing engineering standards that increased delivery velocity by 22%. Collaborated with product, design, and QA to define roadmap priorities, contributing to the successful release of 12+ major features. Modernized legacy modules into modular microservices, reducing deployment cycles from hours to minutes. Implemented CI/CD pipelines using AWS + GitHub Actions, reducing production incident frequency by 35%.

• Full Stack Developer · Bluewave Labs01-01-2021 – 08-31-2022

  Built robust web applications using React, Node.js, Express, MongoDB, and RESTful APIs; supported multi-tenant architecture for enterprise clients. Developed and documented RESTful APIs; improved data reliability and throughput by 18%. Optimized front-end and back-end architecture and implemented best practices that reduced load times by 25% across all primary user flows. Partnered with designers and PMs to deliver features ahead of schedule while maintaining high code quality. Improved application security through role-based access, input validation, and endpoint hardening.

• Junior Full Stack Developer · CodeBridge Studio05-01-2020 – 12-31-2020

  Built reusable UI components using React and JavaScript for high-traffic client applications. Assisted backend development with Node.js and Laravel, contributing to API endpoints, database modeling, and authentication logic. Diagnosed and fixed bugs, improving overall stability and reducing user-reported issues by 20%. Learned full-stack architecture and CI/CD workflows, becoming a core contributor within the first 6 months.

Education

• Virginia TechB.S., Computer Science
• IronhackCertificate, Full Stack Web Development

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