Senior Fullstack Developer

Reason One•Toronto, ON

1d•CA$120,000 - CA$145,000•Remote

About The Position

Reason One is hiring a Senior Fullstack Developer to build innovative products for clients like Emory Healthcare, Children's Nebraska, and Beacon Health. As a Senior Fullstack Developer, you'll lead the technical delivery of enterprise CMS solutions for U.S. healthcare organizations - integrating code and design with CMS functionality on hybrid platforms (Sitecore, Optimizely, Kontent.ai) and on fully composable stacks that pair a specialist platform to each need: Storyblok for CMS, Coveo for search, VWO for personalization, Jotform for HIPAA-compliant forms. Experience with the clinical and operational platforms common in healthcare digital is a plus: EHRs (Epic, Cerner), patient portals (MyChart), and provider management tools (Kyruus Health, DexCare). Healthcare is complex, deeply human work. You'll join a growing B Corp on a mission to improve digital access and equity in healthcare, building products that deliver real results for health systems, patients, and their communities.

Requirements

3+ years in a technical leadership role such as tech lead, team lead, or principal web developer within an agency
Significant professional experience using React (5+ years), Next.js (4+ years - including recent App Router work), and TypeScript (3+ years)
Excellent knowledge and proficiency with tools of the trade, including HTML, CSS (SCSS), JavaScript, WebPack, Git
3+ years professional experience architecting and implementing websites that make use of multiple platforms and services i.e. MACH architecture that includes headless CMS, search-as-a-service, forms-as-a-service etc.
3+ years professional experience working with an enterprise headless CMS such as Optimizely, Sitecore AI, Storyblok, or Kontent.ai.
3+ years professional experience developing and consuming APIs (GraphQL, REST)
Professional experience integrating clinical and operational healthcare platforms, including EHR systems (Epic, Cerner), patient portals (MyChart), and provider management tools (Kyruus Health, DexCare, Sparkle).
Experience with serverless functions / edge workers (Vercel, Cloudflare Workers, Azure Functions, AWS Lambda)
Able to setup and own DevOps for projects you are leading using GitHub Actions with deployments to targets on platforms such as Vercel or Netlify
Strong debugging skills combined with experience using performance and load testing tools.
Practical experience using AI assistants such as Claude in day-to-day work, with sound judgement about task suitability, verifying outputs, and handling confidential information appropriately.
Excellent communication skills with the ability to explain the technical aspects of a project to non-technical people
Ability to handle multiple competing projects in a fast-paced environment
Ability to contribute to the whole process from concept and research to implementation and ongoing maintenance.
Professional experience working with agile practices (backlog, user stories) and methodologies (Scrum / Kanban)

Nice To Haves

Experience with the clinical and operational platforms common in healthcare digital is a plus: EHRs (Epic, Cerner), patient portals (MyChart), and provider management tools (Kyruus Health, DexCare).

Responsibilities

Design and deliver comprehensive, high-quality solutions that seamlessly integrate front-end and back-end technologies.
Write high-quality, reusable code following industry best practices
Develop (in collaboration with other team members) creative, functional, maintainable, and performance-driven web applications, websites and components.
Document application architecture, development workflows, and internal processes that enable knowledge transfer to teammates.
Take part in code reviews - peer review pull requests and provide actionable feedback.
Project-based work and contributing to our internal library of reusable components.
Provide estimates on work efforts.
Provide senior-level support to developers on your team through mentoring and helping them debug issues
Ensure strong team collaboration. Lead by example. Drive team communication.
Ability to demonstrate Reason One’s core values day to day
Participation in our B Corp mandate to improve our social and environmental impact

Benefits

Extended health, dental, life, disability
Employee assistance programs
Parental leave with top-up
Paid Vacation days—15 days per year
Paid Sick leave—6 days per year
Paid Volunteer days—2 days per year
$250 home office expenses per year
$50 per month internet stipend
Training allowance of $800 a year and professional development opportunities like conferences and continuing education
A laptop is provided