Senior SDET (Software Development Engineer in Test)

Fullscript

Fullscript

Software Engineering

Ottawa, ON, Canada

CAD 125k-165k / year

Posted on Apr 28, 2026
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.

The Mission: Core Payments

The Core Payments team is the revenue engine powering Fullscript’s growth.

We own the end-to-end ecommerce experience, including cart, checkout, payments, taxes, discounts, payouts, and financial reporting. Every transaction flows through these systems, requiring high reliability, security, and correctness.

The Role

We’re hiring a Senior SDET to own the engineering of quality for revenue-critical payment systems. This role focuses on building and evolving automated testing systems, improving developer workflows, and ensuring quality is enforced through engineering practices and not just manual validation.

What You'll Do

  • Own the design, development, and maintenance of scalable automated test frameworks (Playwright, API, integration, end-to-end)
  • Build and operate reliable test infrastructure integrated into CI/CD pipelines
  • Drive test automation strategy, optimizing for coverage, speed, and signal quality
  • Identify systemic quality gaps and address them through tooling and engineering improvements
  • Partner with engineers to design systems for testability (e.g., observability, contracts, idempotency)
  • Write production-quality code for test systems, utilities, and supporting infrastructure
  • Improve developer experience by enabling fast, reliable feedback loops
  • Validate complex payment flows and external integrations (e.g., Stripe) through automation-first approaches
  • Lead root cause analysis for defects and implement systemic fixes to prevent recurrence
  • Define and enforce quality standards for high-reliability, revenue-critical systems

What You Bring

  • 5+ years of experience in software engineering, SDET, or test automation roles
  • Proven experience designing and maintaining test automation frameworks at scale
  • Experience with API, integration, and end-to-end testing patterns
  • Strong understanding of CI/CD systems and test pipeline optimization
  • Experience improving test reliability, performance, and maintainability
  • Ability to design systems for testability (e.g., dependency injection, contract testing)
  • Experience working with distributed systems and understanding failure modes
  • Experience with payments, e-commerce, or financial systems (preferred)
  • Strong collaboration skills and ability to influence engineering practices

What We Offer

  • 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 🐶🏡

Why this role matters

This team owns systems where defects directly impact revenue, financial accuracy, and customer trust. This role ensures quality is engineered into the system—preventing issues before they reach production and enabling safe, reliable delivery at scale.

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.
What to Know Before You Apply
We’re 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, 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 accommodations@fullscript.com.
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
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