Senior SDET (Software Development Engineer in Test)

 

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.

 

 

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.

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

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

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*