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Staff Engineer

Fullscript


Job Location:

Toronto - Canada

Yearly Salary: CAD 170000 - 190000
Posted: 5 September 2026 (23 hours ago)
Application Deadline: 3 December 2026
Vacancies: 1 Vacancy

Job Summary

About Fullscript

Were 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 125000 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.
The Opportunity

Team GSD is Fullscripts internal AI and automation team. We build the shared infrastructure integrations and internal tools that help Fullscripters improve how work gets done across the company. Were looking for a Staff Developer to help shape and build the technical foundation behind that work.

Our work starts with real business problems. We use AI and modern automation to reduce manual effort connect fragmented workflows and give teams practical tools they can rely on in production. We care about speed but we also care about building systems that are secure observable maintainable and able to scale.

This is a deeply hands-on individual contributor role focused on internal products and infrastructure rather than Fullscripts customer-facing platform. You will design and operate production systems that connect large language models with company data tools and workflows through technologies such as MCP agentic systems model gateways and workflow orchestration.

You will work with a high degree of autonomy. Direction and business context will come from the GSD team and targeted conversations with business owners but you will be expected to define the technical path challenge assumptions make pragmatic trade-offs and carry meaningful work from an ambiguous problem through production. This is not a ticket-driven role.

At the Staff level your impact will extend beyond the systems you personally build. You will help determine what GSD should tackle next influence architectural decisions act as a thought partner to other experienced developers and raise the teams technical capability through reviews pairing documentation office hours and engineering discussions.

This is how we like building software: . If you share our values wed be excited to talk with you.

What youll do
  • Architect and build production-grade internal AI tools and shared platform capabilities used by teams across Fullscript.

  • Lead the technical design and delivery of complex AI integrations including MCP-based tool use agentic workflows context layers model gateways and workflow automation.

  • Independently take ambiguous business problems from technical discovery and architecture through implementation deployment measurement and ongoing operation.

  • Develop and maintain the infrastructure that connects approved models with Fullscripts internal systems data APIs and user workflows.

  • Own the reliability scalability observability and security of production AI systems including model routing evaluation access control and the responsible handling of sensitive data.

  • Build internal experiences that are useful to people across the business contributing across backend servicesinfrastructure and user-facing interfaces where the problem requires it.

  • Work with GSD teammates engineers and business owners to understand high-value workflows and translate them into maintainable technical solutions without becoming dependent on heavy stakeholder oversight.

  • Evaluate emerging AI models frameworks and patterns through practical experimentation then make clear recommendations about what Fullscript should adopt adapt or avoid.

  • Shape GSDs technical roadmap by identifying reusable platform opportunities challenging architectural assumptions and connecting engineering investments to measurable business impact.

  • Act as a force multiplier through thoughtful code reviews pairing technical guidance documentation office hours and active participation in the broader engineering community.

What you bring to the table
  • 8 years of professional software development experience including demonstrated impact as a technical leader on complex production systems.

  • Hands-on experience building and operating AI-enabled applications in production including strong familiarity with MCP or comparable tool-use protocols agents context management and LLM integrations.

  • A track record of building internal tools developer platforms or enterprise systems that were adopted by real users and produced measurable operational impact.

  • Deep backend engineering expertise in Ruby Python or a comparable language along with the ability to learn new languages and frameworks as the problem requires.

  • Strong systems-design fundamentals including APIs integrations distributed systems data flows authentication authorization and pragmatic architectural trade-offs.

  • Practical cloud and DevOps experience operating reliable systems in AWS or a comparable environment including CI/CD containers serverless infrastructure observability and infrastructure as code.

  • The ability to work independently through ambiguity define your own path forward and drive substantial initiatives to completion without waiting for detailed requirements or a queue of tickets.

  • Clear credible communication and Staff-level influence with the ability to explain decisions challenge other experienced engineers constructively share knowledge and connect technical work to business outcomes.

Bonus if you have
  • Experience with React TypeScript or GraphQL and the ability to contribute to full-stack internal applications.

  • Experience with n8n Temporal or another workflow orchestration platform.

  • Familiarity with LLM evaluation and observability platforms such as Langfuse.

  • Experience with GitLab CI/CD Kubernetes Cloudflare Workers or similar infrastructure and deployment tooling.

  • Experience building technology in healthcare or another regulated environment governed by standards such as HIPAA or SOC 2.

Technical Envionrment
  • Languages and frameworks: Ruby React TypeScript Python GraphQL and SQL
  • AI and LLM:Multiple LLM providers AWS Bedrock AI gateway MCP agentic workflows and AI evaluation and observability tooling
  • Infrastructure: AWS EKS/Kubernetes GitLab CI/CD Cloudflare serverless services and infrastructure as code
  • Data: Snowflake and PostgreSQL
  • Observability: Langfuse Sentry and Coralogix
What we can offer you
  • Remote-first flexibility to work where you work best with Ottawa Toronto or Calgary preferred for this role.

  • Flexible PTO and competitive pay because work-life balance matters

  • RRSP/401k match and competitive compensation packages to invest in your future

  • Premium benefits package with customizable coverage paramedical services and an HSA.

  • Fullscript discounts to save on high-quality wellness products

  • Continuous learning opportunities to grow your skills and career

Compensation range

The salary range for this role is between $170000 and $190000 (CAD). Fullscript shares salary ranges to support transparency and help candidates make informed decisions. The range shown reflects base salary only. The range shown reflects base salary only. Additional incentives perks and benefits may be available as part of Fullscripts 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.

What to Know Before You Apply

Were grateful for the interest in joining Fullscript. To make sure your application reaches our hiring team please apply directly through our careers page.

A quick note: Due to the high volume of applications were not able to respond to phone or email inquiries about application status. If theres 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 emailprotected.

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
@fullscriptHQ on instagram
@fullscript on YouTube
FullScripton LinkedIn
We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

Staff IC


About Company

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Join thousands on Fullscript in making health last with a platform for personalized treatment planning, active wellness support, and top-quality supplements.

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