Senior Developer, Fullstack - Identity and Access Management (IAM)

RXinsider LTD.; Toronto; Hybrid; CAD 125,000 - 165,000; Full time

Benefits offered by this job

Generous PTO

RRSP match program

Flexible benefits package

Training budget and learning programs

Discount on Fullscript catalog

Wherever You Work Well

Job summary

Fullscript is seeking a Senior Fullstack Developer for our Identity and Access Management (IAM) Engineering team.

You will develop and maintain IAM capabilities, including authentication, authorization, sign-up, SSO integrations, and OAuth flows, in collaboration with product, security, and legal teams.

Requirements include 5+ years of professional software development, and hands-on experience with Ruby on Rails, React, JavaScript/TypeScript, GraphQL, and Apollo.

Qualifications

• 5+ years of professional software development experience.
• Experience with authentication protocols, SSO, RBAC, and MFA.
• Proficient with Ruby on Rails, React, GraphQL, and TypeScript.

Responsibilities

• Collaborate with your pod — a small, focused team of full-stack engineers — to build and maintain IAM capabilities.
• Contribute to backend and frontend codebases with an eye toward reliability, scalability, and security
• Participate in technical design discussions and help break down projects into clear, actionable tasks
• Identify and suggest improvements to our authentication and authorization flows
• Help support the maintenance and uptime of IAM systems, including investigating and resolving production issues
• Work closely with product, security, and legal stakeholders to ensure compliance and integrity of user data and access
• Stay informed on evolving security practices, frameworks, and technologies

Skills

Authentication protocols

SSO

OAuth

RBAC

MFA

Ruby on Rails

React

TypeScript

GraphQL

Apollo

5+ years experience

Tools

Ruby on Rails

React

TypeScript

GraphQL

Apollo

Job description

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.

We are seeking a Senior Fullstack Developer for our Identity and Access Management (IAM) Engineering team.

As a Senior Developer, you will play a critical role in developing and maintaining all things IAM, including authentication, authorization, and identity. You'll contribute directly to the systems powering sign-up, login, SSO integrations, and our OAuth flows. You’ll work closely with your teammates, engineering leads, product, and security stakeholders to deliver secure, reliable, and scalable solutions.

This is how we like building software: https://fullscript.com/developer-handbook If you share our values, we’d be excited to talk with you!

What you'll do:

• Collaborate with your pod — a small, focused team of full-stack engineers — to build and maintain IAM capabilities
• Contribute to backend and frontend codebases with an eye toward reliability, scalability, and security
• Participate in technical design discussions and help break down projects into clear, actionable tasks
• Identify and suggest improvements to our authentication and authorization flows
• Help support the maintenance and uptime of IAM systems, including investigating and resolving production issues
• Work closely with product, security, and legal stakeholders to ensure compliance and integrity of user data and access
• Stay informed on evolving security practices, frameworks, and technologies

What you bring to the table:

• A collaborative mindset and a willingness to share knowledge and ideas with teammates
• Passion for IAM and security — you care about protecting users and understanding the threat landscape
• Experience with authentication protocols, SSO (SAML, OAuth), RBAC, and MFA
• 5+ years of professional software development experience
• Hands-on experience with modern web development — we use Ruby on Rails, React, JavaScript/TypeScript, GraphQL, and Apollo
• A commitment to writing clean, maintainable code and fostering strong engineering practices

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*

*Our Wherever You Work Well philosophy means Fullscript teammates get to pick their own office — whether that’s in-office, at home, or a bit of both

Compensation range

The salary range for this role is between $125,000 and $165,000 CAD. Fullscript shares salary ranges to support transparency and help candidates make informed decisions. The range shown reflects base salary only and does not include stock options, wellness stipends, or other benefits that are part of Fullscript’s total rewards package.

Final compensation depends on experience, skills, and location. We review pay regularly to stay aligned with market data and internal equity. Benefits and total rewards may vary by region.

Why Fullscript

Great work happens when people feel supported, trusted, and inspired. At Fullscript, we stay curious and keep finding smarter ways to make care better. We grow together, take on new challenges, and focus on impact. We put people first, work as a team, and leave egos at the door.

A quick note:

Due to the high volume of applications, we’re not able to respond to phone or email inquiries about application status. If there’s a match, our team will reach out directly.

Fullscript is an equal opportunity employer committed to creating an inclusive workplace. Accommodations are available upon request at [e-mail].

All offers are contingent on successful background checks conducted in compliance with federal, state, and provincial laws.

We use AI tools to support parts of the hiring process, including screening and reviewing responses. Final hiring decisions are always made by people and follow all applicable privacy and employment laws in Canada and the U.S.

Learn More

www.fullscript.com

@fullscriptHQ on instagram

Let’s make healthcare whole