Senior SDET (Software Development Engineer in Test)
About The Position
Fullscript is an industry-leading health technology company focused on improving healthcare delivery. The Core Payments team is responsible for the end-to-end e-commerce experience, including cart, checkout, payments, taxes, discounts, payouts, and financial reporting. This team requires high reliability, security, and correctness in its systems. The Senior SDET role is crucial for owning the engineering of quality for these revenue-critical payment systems. This involves building and evolving automated testing systems, enhancing developer workflows, and ensuring quality through engineering practices rather than solely manual validation.
Requirements
- 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
- Strong collaboration skills and ability to influence engineering practices
Nice To Haves
- Experience with payments, e-commerce, or financial systems
Responsibilities
- 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
Benefits
- 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
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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
Number of Employees
251-500 employees
