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Dennis Ryan

@dennisryan

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Senior Full Stack Developer with expertise in web and mobile applications.

United States

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What I'm looking for

I am looking for a role that fosters innovation, encourages collaboration, and offers opportunities for professional growth.

I am a Senior Full Stack Developer with extensive experience in both web and mobile application development. My journey began with a Master’s Degree in Computer Science from Texas Christian University, where I honed my skills in various programming languages and frameworks. Over the years, I have developed a strong proficiency in the MERN stack, PHP frameworks, and mobile technologies like Flutter and React Native. My passion for coding drives me to tackle complex challenges and deliver user-centered designs that scale.

In my most recent role at Oakr, I built and maintained key backend services using Python and Django, focusing on user personalization and data processing. My freelance work on Upwork allowed me to lead the full-stack development of a clinician and patient portal for an IoT healthtech company, ensuring HIPAA compliance through secure integrations. I thrive in collaborative environments, utilizing agile methodologies to ship high-priority features rapidly while maintaining structured reporting.

Throughout my career, I have contributed to innovative software applications, from automating data processes for UNC Health to redesigning testing strategies at Mediavine. I am committed to continuous learning and applying advanced development methodologies to create impactful solutions.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Developer

Current

Oaks

Nov 2024 - Present (8 months)

Built and maintained key backend services with Python and Django, supporting user personalization, data processing, and accessibility features. Participated in daily standups to ship high-priority features rapidly, maintaining structured SOD/EOD reporting. Gained foundational exposure to TensorFlow and PyTorch in a collaborative, AI-focused development environment.

Python Django Backend Development Data Processing TensorFlow PyTorch Agile Methodologies AI Development Accessibility

Senior Web Developer

Self-Employed | Upwork Freelance

Jan 2021 - May 2025 (4 years 4 months)

Led full-stack development of a clinician and patient portal for an IoT healthtech company, focusing on early concussion detection. Utilized Python/Django for the backend and React/React Native for the frontend, integrating AWS services, JWT authentication, and AES-256 encryption. Ensured HIPAA compliance throughout the development process.

Python Django React React Native AWS JWT AES 256 Encryption HIPAA Full Stack Developer IoT

Senior MERN Stack Developer

100 Devs

Jan 2020 - Oct 2022 (2 years 9 months)

Collaborated with development teams to build modern and responsive web applications following best practices. Constructed semantically structured full-stack web and mobile applications using React, NodeJS, React Native, Express, and MongoDB. Applied agile methodologies like SCRUM for efficient project management.

React NodeJS React Native Express MongoDB MERN Stack Agile Methodologies Scrum Web Development Mobile Development

Senior Full Stack Developer

UNC Health

Sep 2017 - Jan 2020 (2 years 4 months)

Developed a web-based application to automatize data entry, analysis, and storage for the UNC pathologist lab. Our team created a containerized web-based application utilizing Docker, React, Flutter, Laravel, Vue, Node, MongoDB, and RedHat-OpenShift. This system streamlined critical lab processes.

Docker React Flutter Laravel Vue Node MongoDB Red Hat OpenShift Web Applications Data Automation

Senior MERN/MEVN Developer

University of North Carolina at Charlotte

Mar 2016 - Aug 2017 (1 year 5 months)

Collaborated on a team project to design an online truck tracking system as a final web development course deliverable. Built modular UIs with React, TypeScript, Material UI, and GraphQL, implementing drag-and-drop interfaces and data visualizations with D3.js. Developed real-time features for enhanced user interaction.

React TypeScript Material UI GraphQL D3.Js UI Development Web Development Data Visualization

Web Developer

Mediavine

Nov 2012 - Feb 2016 (3 years 3 months)

Instilled new standards and practices for JavaScript, HTML, CSS, and React design patterns, mapping flow charts for codebase understanding. Converted outdated codebase into modern React architecture using contemporary design patterns. Built comprehensive test suites and utilities to maintain high-quality code coverage, redesigning the testing strategy for performant builds and faster development.

JavaScript HTML CSS React Design Patterns Testing Test Coverage Web Development Software Architecture

Education

Degrees, certifications, and relevant coursework

Texas Christian University

Master’s Degree, Computer Science

Obtained a Master's Degree in Computer Science. The curriculum focused on advanced topics in the field, preparing for complex software development challenges.