I am a Senior Full Stack Engineer with over 12 years of experience building scalable healthcare and SaaS platforms using React, Node.js, and PostgreSQL. I have also delivered production-ready Swift iOS features and integrated mobile backends to support secure clinician and patient workflows. I excel at collaborating across design, data, and engineering teams to ship stable, high-impact products on tight timelines. I focus on robust authentication, real-time data delivery, and performance optimization, consistently reducing latency and delivering MVPs from concept to App Store launches.

Zachary Tate Martin

I am a Senior Full Stack Engineer with over 12 years of experience building scalable healthcare and SaaS platforms using React, Node.js, and PostgreSQL. I have also delivered production-ready Swift iOS features and integrated mobile backends to support secure clinician and patient workflows. I excel at collaborating across design, data, and engineering teams to ship stable, high-impact products on tight timelines. I focus on robust authentication, real-time data delivery, and performance optimization, consistently reducing latency and delivering MVPs from concept to App Store launches.

Available to hire

I am a Senior Full Stack Engineer with over 12 years of experience building scalable healthcare and SaaS platforms using React, Node.js, and PostgreSQL. I have also delivered production-ready Swift iOS features and integrated mobile backends to support secure clinician and patient workflows.

I excel at collaborating across design, data, and engineering teams to ship stable, high-impact products on tight timelines. I focus on robust authentication, real-time data delivery, and performance optimization, consistently reducing latency and delivering MVPs from concept to App Store launches.

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Experience Level

Expert
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Language

English
Fluent

Work Experience

Senior Full Stack Engineer at Function Health
January 1, 2022 - Present
Led the design and delivery of a full-stack healthcare platform using React, Node.js, and PostgreSQL, enabling real-time health data visualization and clinician/patient workflows. Architected GraphQL and REST APIs with secure authentication and push notifications, integrated with WebSocket updates. Delivered production-ready Swift iOS features for data visualization and messaging, deployed to the App Store. Collaborated with product, design, and data teams to define acceptance tests and milestone-driven delivery. Implemented modular authentication, session management, and shift management aligned with HIPAA compliance. Coordinated QA automation and cloud-based testing pipelines to accelerate feature verification, and led post-release bug-fix cycles.
Full Stack Developer at Nuvalence
December 1, 2021 - October 15, 2025
Built end-to-end web and mobile solutions using React, Node.js, and GraphQL, powering staffing and logistics dashboards. Integrated real-time data pipelines using WebSockets and AWS services for instant job matching and notifications. Developed authentication flows for multi-role users with OAuth2 and JWT. Partnered with design teams in Figma to translate UI concepts into accessible React components. Designed database schemas and APIs for scheduling, messaging, and real-time updates; optimized queries in PostgreSQL reducing data fetch times by 30% on high-traffic endpoints. Collaborated on version control, code reviews, and CI/CD for iterative releases; provided technical documentation and onboarding resources.
Software Engineer at Chewy
November 1, 2018 - October 15, 2025
Developed dynamic customer-facing interfaces with React and Node.js, integrating real-time order updates and chat notifications. Created RESTful services handling millions of transactions daily across multiple user tiers. Implemented data caching, indexing, and validation in PostgreSQL to optimize performance at scale. Worked closely with QA and product management to define acceptance criteria and automate test coverage. Designed and deployed microservices using Docker and AWS; supported backend monitoring and rapid bug triage. Mentored junior engineers on code quality, test-driven development, and Agile practices.
Senior Full Stack Engineer at Function Health
January 1, 2022 - Present
Led design and delivery of a full-stack healthcare platform using React, Node.js, and PostgreSQL; architected GraphQL and REST APIs for clinician and patient workflows; delivered production-ready Swift iOS features for data visualization and messaging, fully deployed to the App Store; collaborated with cross-functional teams to define acceptance tests and milestone-driven delivery checkpoints; designed modular authentication and session management aligned with HIPAA; coordinated QA automation and cloud-based testing pipelines; contributed to architectural decisions across front-end, back-end, and mobile integration layers; implemented post-release bug-fixing workflows and hotfix cycles within 30-day SLAs.
Full Stack Developer at Nuvalence
December 1, 2021 - October 15, 2025
Built end-to-end web and mobile solutions using React, Node.js, and GraphQL; integrated real-time data pipelines using WebSockets and AWS services for instant job matching and notifications; developed authentication flows for multi-role users with OAuth2 and JWT-based systems; partnered with design teams in Figma to translate UI concepts into functional, accessible React components; designed database schemas and APIs for scheduling, messaging, and real-time updates; optimized PostgreSQL query performance on high-traffic endpoints; collaborated on version control, code reviews, and CI/CD for iterative feature releases; provided technical documentation and onboarding resources for distributed developers.
Software Engineer at Chewy
November 1, 2018 - October 15, 2025
Developed dynamic customer-facing interfaces with React.js and Node.js, integrating real-time order updates and chat notifications; created RESTful services supporting millions of transactions daily across multiple user tiers; implemented data caching, indexing, and validation in PostgreSQL to optimize performance; worked with QA and product management to define acceptance criteria and automated testing coverage; designed and deployed microservices using Docker and AWS; supported backend monitoring and bug triage for production stability and rapid resolution; mentored junior engineers on code quality and Agile practices; collaborated on UX refinements to improve accessibility and mobile usability.

Education

Bachelor's Degree at Cornell University
April 1, 2008 - August 1, 2012
Bachelor's Degree in Computer Science at Cornell University
April 1, 2008 - August 1, 2012

Qualifications

Add your qualifications or awards here.

Industry Experience

Healthcare, Software & Internet, Professional Services