Senior Full Stack Engineer with 8+ years of experience designing and delivering enterprise-grade web and cloud applications across healthcare, fintech, and education industries. Delivered measurable results, including tripling system throughput and reducing API latency by 60%. Skilled in cloud-native development with AWS, Docker, Kubernetes, and Terraform, driving cost reductions and performance improvements for large-scale clients. Strong background in microservices, REST & GraphQL APIs, CI/CD automation, and test-driven development with Jest and Cypress.

Justin Lee

Senior Full Stack Engineer with 8+ years of experience designing and delivering enterprise-grade web and cloud applications across healthcare, fintech, and education industries. Delivered measurable results, including tripling system throughput and reducing API latency by 60%. Skilled in cloud-native development with AWS, Docker, Kubernetes, and Terraform, driving cost reductions and performance improvements for large-scale clients. Strong background in microservices, REST & GraphQL APIs, CI/CD automation, and test-driven development with Jest and Cypress.

Available to hire

Senior Full Stack Engineer with 8+ years of experience designing and delivering enterprise-grade web and cloud applications across healthcare, fintech, and education industries. Delivered measurable results, including tripling system throughput and reducing API latency by 60%. Skilled in cloud-native development with AWS, Docker, Kubernetes, and Terraform, driving cost reductions and performance improvements for large-scale clients. Strong background in microservices, REST & GraphQL APIs, CI/CD automation, and test-driven development with Jest and Cypress.

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Experience Level

Expert
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Expert
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Expert
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Expert
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Language

English
Fluent

Work Experience

Senior Full Stack Engineer at Perficient
August 1, 2025 - October 3, 2025
Designed and developed a HIPAA-compliant patient portal using Next.js, React, TypeScript, and Node.js with PostgreSQL on AWS S3, tripling document processing throughput. Architected microservices with NestJS, GraphQL, Redis, and Kubernetes, cutting API response times by 60% and boosting checkout conversions by 12%. Built real-time analytics dashboards with Next.js, GraphQL, and Prisma, reducing reporting time by 40%. Implemented IaC and CI/CD pipelines with Terraform, Docker, and GitHub Actions, accelerating deployments by 70% and ensuring reliable rollbacks. Led a 7-person team, improving sprint delivery accuracy from 70% to 95% and collaborating with stakeholders to secure $1.2M in new contracts.
Software Developer at Slalom
February 1, 2023 - October 3, 2025
Migrated monolithic analytics platforms to AWS microservices using Docker and Terraform, reducing infrastructure costs by 30% and improving uptime. Rebuilt legacy UI as a Next.js/React SPA integrated with GraphQL APIs, cutting page load times by 50%. Developed ETL pipelines in Node.js and Python with PostgreSQL to enable near real-time BI and shift reports from daily to hourly delivery. Enhanced QA automation with Cypress and Jest, reducing regressions by 60% and production bugs by 30%. Trained 5 client engineers on CI/CD best practices to shorten onboarding and improve release consistency.
Full Stack Developer at MentorMate
December 1, 2020 - October 3, 2025
Delivered 10+ mobile-first web applications used by 200K+ users across healthcare, fintech, and education, ensuring WCAG accessibility and building responsive PWAs with React, Vue.js, and Nuxt.js. Built RESTful backends in Laravel and Django with MySQL/PostgreSQL and JWT authentication, increasing scalability and reliability. Optimized front-end performance with Webpack code-splitting and tree-shaking, reducing bundle sizes by 45% and cutting average load times from 4.5s to 2.2s. Introduced automated testing pipelines with Jest and Cypress, reducing post-release bugs and hotfix frequency.

Education

Bachelor of Science at St. Cloud State University
August 1, 2013 - May 1, 2017

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Financial Services, Education, Software & Internet, Retail, Professional Services