Senior Full Stack Developer (Contractor)

Healthy Gamer•Houston, TX

About The Position

Healthy Gamer is a mental wellness company that aims to make mental health care inclusive and affordable. Since its launch in November 2019, their coaching service has assisted over 13,000 individuals across 77 countries. The company has a significant presence in the gaming community, ranking among the top 0.1% of Twitch streamers and top 1% of YouTube channels. They are expanding their resources to address mental health challenges more broadly and are seeking passionate individuals to join their team. The Senior Full Stack Developer will be responsible for creating intuitive, performant, and accessible user interfaces, as well as contributing to backend logic and API development within their Ruby on Rails stack. This role involves close collaboration with product, design, and engineering teams to transform ideas into user-centered experiences. The ideal candidate will have a strong focus on usability and quality, enjoy cross-disciplinary collaboration, and thrive in an environment that values ownership, mentorship, and continuous improvement.

Requirements

5+ years of professional experience as a front-end or full stack developer.
Strong proficiency in JavaScript, HTML, and CSS.
Experience building SPAs using a modern front-end framework (Svelte, React, Vue, or similar).
Comfortable working with REST APIs.
Some backend experience (Ruby on Rails preferred, but not required).
Strong attention to detail with a user-first mindset.
Clear communicator who works well in cross-functional teams.
Comfortable mentoring others.

Nice To Haves

Experience with Ruby on Rails or a similar backend framework.
Experience with TypeScript.
Experience implementing browser-side analytics with tools like Google Tag Manager or Amplitude.
Experience with testing frameworks such as RSpec and Jest.
Exposure to accessibility standards and inclusive design.
Experience in healthcare, mental health, or regulated environments.
Experience in a startup or scaling product team.

Responsibilities

Build, maintain, and improve user-facing features using Svelte SPA, managing the process from design handoff to deployment.
Translate product requirements and design mockups into clean, scalable, and reusable front-end code.
Collaborate with product managers, designers, and backend engineers to deliver high-quality features end-to-end, contributing to backend logic and APIs (Ruby on Rails) as needed.
Ensure consistent implementation of design systems and UI standards across the product.
Optimize applications for performance, responsiveness, and cross-browser compatibility.
Write maintainable, well-tested front-end code and participate in code reviews.
Ensure accessibility best practices (WCAG) are incorporated into front-end development.
Identify and address technical debt and front-end architecture improvements.
Help set front-end best practices, tooling decisions, and technical standards.
Mentor junior and mid-level engineers, providing constructive code review feedback.
Debug and resolve issues across the front end and, when needed, the Rails backend.
Stay current with evolving front-end technologies and apply learnings where appropriate.