Senior Developer, Backend - Developer Infrastructure

About Fullscript
We’re an industry‑leading health technology company on a mission to help people get better. We started in 2011 with one simple idea: make it easier for practitioners to access the products they trust so they can deliver better care. That simple idea grew into a platform that powers every part of care. Today, more than 125,000 practitioners use Fullscript for clinical insights, lab interpretations, patient analytics, education, and access to high‑quality supplements.

Over 10 million patients rely on Fullscript to stay connected to their care plans and follow through on treatment. We build tools that make care smarter and more human – tools that save time, simplify decisions, and help practitioners stay closely connected to the people they care for. When everything they need is in one place, they can focus on what matters most: helping people get better.

This is your invitation
Bring your ideas, your grit, and your care for people. Join us and shape the future of care. Fullscript is looking for an experienced Senior Backend Engineer to join the infrastructure team responsible for the long‑term health, scalability, and developer experience of Fullscript’s core application. Our team enables fast, reliable product development by defining and upholding engineering standards for quality, scalability, and maintainability.

We take on foundational upgrades, cross‑team technical work, and infrastructure projects that help product teams move quickly without compromising the stability of the platform. Our team cares about doing things well – that means improving the systems developers work in every day, reducing friction, modernizing our stack, and making thoughtful technical decisions that support Fullscript’s long‑term growth. This is how we like building software:  If you share our values, we’d be excited to talk with you!

What you’ll do

Own and improve the long‑term technical health of our monorepo

Plan out solution designs and release strategies in collaboration with other engineering teams and stakeholders

Lead foundational upgrades across the stack

Improve code quality, application structure, maintainability, and engineering standards

Address scalability, reliability, and performance concerns as the product grows

Resolve security vulnerabilities across the application and its dependencies

Build and maintain shared developer tooling, CI linting, and quality‑of‑life improvements

Maintain and evolve shared infrastructure such as feature flags, end‑to‑end tests, and infrastructure‑as‑code within the monolith

Support product teams by solving cross‑cutting technical issues

Act as a multiplier by unblocking other teams and improving the systems they rely on

Contribute through implementation, code review, technical guidance, mentorship, and documentation

What you bring to the table

Strong experience with Ruby or Ruby on Rails

Passion for software engineering and a commitment to serving other developers as your end users

Excitement to learn, lead projects and a desire to produce the best work possible

Experience designing maintainable systems and making pragmatic technical tradeoffs

Strong testing habits and an understanding of how tests support long‑term maintainability

Comfort working on platform, infrastructure, tooling, or developer experience problems

A desire to improve engineering standards across teams

Strong communication skills and the ability to collaborate across engineering teams

A willingness to learn, ask questions, and receive feedback

Bonus if you have

Experience scaling or working on high‑scale web applications

Past experience working in e‑commerce or health tech sector

Experience with React or GraphQL in the past

Experience improving CI systems, test suites, feature flag systems, or developer tooling

What we can offer you

Generous PTO and competitive pay

Fullscript’s RRSP match program for financial health

Flexible benefits package and workplace wellness program

Training budget and company‑wide learning initiatives

Discount on Fullscript catalog of products

Ability to work Wherever You Work Well
* Compensation range
The salary range for this role is between $125,000 and $165,000 CAD. Fullscript shares…