Hayley Witherell

Building Reliable, Usable Systems

Full-stack software engineer with 5+ years building features in Ruby on Rails and JavaScript across frontend and backend systems. Focuses on usability, accessibility, and reliable systems.

Works across feature development, internal tools, and production debugging, including resolving issues that impact real users. Breaks down complex problems into clear, maintainable solutions.

Emphasizes clear UI patterns, strong documentation, and testing practices. Uses automation and AI tools to improve developer workflows and code quality.

JavaScript
Ruby on Rails
React
HTML/CSS

Work, Community, and Leadership

Engineering and leadership background

Experience in operations and marketing leadership across multiple functions and locations. Trained in software engineering at Turing School of Software & Design and has built production features across e-commerce and education platforms, focusing on complex form workflows, testing, and debugging.

Community and mentorship

Founder of Neurodiversity In Tech and co-founder of Colorado Badged Network, building professional communities. Instructor and mentor at a nonprofit code school, teaching JavaScript and Ruby on Rails to underrepresented adults. Participates in panels, interviews, and discussions on accessibility and inclusion in tech.