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I am a seasoned Full Stack Engineer with 8+ years of experience designing and delivering scalable, secure web applications in healthcare and regulated industries. I specialize in TypeScript-based full-stack development using Next.js and Node.js-inspired backends, building RESTful APIs and optimizing performance while upholding HIPAA data privacy standards. I thrive in remote, agile environments and enjoy collaborating with cross-functional teams to create maintainable, compliant solutions that enhance patient and provider experiences. I'm excited to contribute to Twine's healthcare web app by delivering robust architectures, rigorous testing, and reusable components that scale with growing user needs.…I am a seasoned Full Stack Engineer with 8+ years of experience designing and delivering scalable, secure web applications in healthcare and regulated industries. I specialize in TypeScript-based full-stack development using Next.js and Node.js-inspired backends, building RESTful APIs and optimizing performance while upholding HIPAA data privacy standards. I thrive in remote, agile environments and enjoy collaborating with cross-functional teams to create maintainable, compliant solutions that enhance patient and provider experiences. I'm excited to contribute to Twine's healthcare web app by delivering robust architectures, rigorous testing, and reusable components that scale with growing user needs.

Juan De La Cruz

Full Stack Developer, Developer, AI Engineer, +6

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I am a seasoned Full Stack Engineer with 8+ years of experience designing and delivering scalable, secure web applications in healthcare and regulated industries. I specialize in TypeScript-based full-stack development using Next.js and Node.js-inspired backends, building RESTful APIs and optimizing performance while upholding HIPAA data privacy standards. I thrive in remote, agile environments and enjoy collaborating with cross-functional teams to create maintainable, compliant solutions that enhance patient and provider experiences. I'm excited to contribute to Twine's healthcare web app by delivering robust architectures, rigorous testing, and reusable components that scale with growing user needs.…I am a seasoned Full Stack Engineer with 8+ years of experience designing and delivering scalable, secure web applications in healthcare and regulated industries. I specialize in TypeScript-based full-stack development using Next.js and Node.js-inspired backends, building RESTful APIs and optimizing performance while upholding HIPAA data privacy standards. I thrive in remote, agile environments and enjoy collaborating with cross-functional teams to create maintainable, compliant solutions that enhance patient and provider experiences. I'm excited to contribute to Twine's healthcare web app by delivering robust architectures, rigorous testing, and reusable components that scale with growing user needs.

Available to hire

I am a seasoned Full Stack Engineer with 8+ years of experience designing and delivering scalable, secure web applications in healthcare and regulated industries. I specialize in TypeScript-based full-stack development using Next.js and Node.js-inspired backends, building RESTful APIs and optimizing performance while upholding HIPAA data privacy standards.

I thrive in remote, agile environments and enjoy collaborating with cross-functional teams to create maintainable, compliant solutions that enhance patient and provider experiences. I’m excited to contribute to Twine’s healthcare web app by delivering robust architectures, rigorous testing, and reusable components that scale with growing user needs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Software Engineer – Web Applications at Fry's Electronics

August 1, 2017 - September 3, 2025

Developed scalable backend systems with Python and FastAPI for inventory and sales reporting. Created interactive user interfaces using React and TypeScript with server-side rendering to improve usability and SEO. Integrated secure payment gateways to handle transactions and optimized PostgreSQL databases for high-performance sales analytics. Streamlined developments and deployment using Docker containerization. Contributed to automated testing, CI/CD pipelines with GitHub Actions, and introduced prompt engineering and AI model integration best practices.

Full Stack Engineer at Support.com

November 1, 2019 - September 3, 2025

Designed backend services with Python and FastAPI supporting inventory and asset tracking. Developed dynamic, SEO-friendly React frontends in TypeScript. Integrated AI-driven analytics improving support ticket resolution times by 20%. Built RESTful APIs with secure authentication, managed containerized applications with Docker and Kubernetes for scalability, and optimized PostgreSQL databases. Developed CI/CD pipelines using GitHub Actions and automated cloud infrastructure provisioning with Terraform. Participated in security reviews to protect sensitive data.

Full Stack Developer – Cloud-Native Applications at LawnStarter

November 1, 2021 - September 3, 2025

Developed scalable backend APIs with Python FastAPI for bookings and scheduling. Built responsive React and TypeScript frontends improving user self-service and vendor management. Integrated third-party AI APIs and implemented custom prompt engineering for personalized recommendations. Managed containerized cloud-native deployments on AWS using Docker and Kubernetes. Optimized PostgreSQL schemas for real-time systems and automated CI/CD pipelines with GitHub Actions to enhance reliability. Applied security best practices including RBAC and secure API gateways, while monitoring performance for scalability.

Full Stack Engineer – Cloud & AI Integrations at Google

August 1, 2023 - September 3, 2025

Built scalable backend microservices in Python and FastAPI supporting AI-powered search tools deployed in Kubernetes clusters. Developed interactive React and TypeScript dashboards with Redux, enhancing AI model data visualization. Integrated OpenAI and Anthropic APIs for automated content generation and classification. Designed prompt engineering pipelines and implemented RAG architectures to improve AI response relevance. Managed containerization and Kubernetes orchestration, implemented CI/CD with GitHub Actions, optimized PostgreSQL for analytical workloads, provisioned GCP cloud resources using Terraform, and led security audits safeguarding AI applications.

Senior Full Stack Engineer – AI & Cloud Integration at UnitedHealthCare

April 1, 2025 - September 3, 2025

Led design and development of enterprise healthcare portals with Python FastAPI and React/TypeScript, improving patient data access speed by 30%. Architected and optimized PostgreSQL databases for high-volume claims processing. Integrated AI/ML services and LLM APIs automating claims eligibility verification, cutting manual processes by 40%. Developed scalable containerized microservices on AWS using Docker and Kubernetes. Implemented CI/CD pipelines and infrastructure as code with Terraform for automated deployments. Collaborated closely with product teams, designed prompt engineering and RAG pipelines for AI insights, applied robust security practices, contributed to blockchain notarization workflows, and mentored junior developers.

Lead Full Stack Engineer at UnitedHealthCare

April 1, 2025 - October 20, 2025

Developed and maintained scalable full-stack healthcare web applications using TypeScript, Next.js, and backend patterns; designed secure RESTful APIs for claims processing and eligibility verification, improving data retrieval speed by 40%. Implemented robust authentication and authorization, led remote agile sprints, and integrated PostgreSQL and MongoDB with Prisma ORM, resulting in improved data integrity and query performance. Optimized performance and ensured HIPAA-compliant data privacy in a 24/7 healthcare environment.

Full Stack Software Engineer at Google

August 1, 2023 - October 20, 2025

Developed full-stack microservices and web applications using TypeScript, Next.js frontend framework, and backend patterns inspired by Express.js; built RESTful APIs for large-scale search and data visualization; contributed to technical design discussions to improve system architecture; improved API performance and security practices across services.

Full Stack Developer at LawnStarter

November 1, 2021 - October 20, 2025

Designed and implemented full-stack features for customer self-service portals and scheduling apps; integrated third-party payment gateways ensuring PCI compliance; built interactive frontend components to enhance usability; implemented unit and end-to-end tests; managed deployments and CI/CD workflows.

Full Stack Developer at Support.com

November 1, 2019 - October 20, 2025

Developed internal management systems and client-facing web applications; designed and implemented secure RESTful APIs; integrated payment gateways and enforced data privacy measures; refactored legacy code and optimized database queries to improve performance; led code reviews and CI/CD automation.

Junior Full Stack Developer at Fry's Electronics

August 1, 2017 - October 20, 2025

Contributed to inventory and sales analytics web applications; built REST endpoints and integrated with SQL Server and Oracle; participated in debugging, troubleshooting, and performance tuning; gained early cloud and container experience.