Senior Software Development Engineer in Test, SDET

November 4

🗽 New York – Remote

Although this job is listed in New York, this company may be open to hiring remote in other states.

💵 $142k - $155k / year

⏰ Full Time

🟠 Senior

⚙️ Software Development Engineer in Test (SDET)

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Flex

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Fintech • Real Estate • B2C

Flex is a financial technology company that enables renters to split and schedule rent payments, pay move-in costs over time, and build credit through on-time rent reporting. It offers consumer-facing payment products (rent split, pay-over-time, and move-in loans) and partners with property owners and property-management systems to help properties collect on-time rent and retain residents. Flex operates via bank partnerships and regulated lending/servicing subsidiaries to provide loans and payment processing while emphasizing security and regulatory compliance.

201 - 500 employees

Founded 2019

💳 Fintech

🏠 Real Estate

👥 B2C

📋 Description

• Architect, implement, and optimize automated test frameworks for complex product areas, ensuring high reliability and maintainability • Design, develop, and maintain robust automated test suites for API, UI, and integration testing • Lead test strategy development and perform risk analysis for major features and systems • Integrate automated testing into CI/CD pipelines, supporting continuous integration and delivery processes • Proactively identify systemic quality issues and drive cross-team process improvements to increase coverage and efficiency • Analyze test coverage, identify gaps, and implement solutions to improve product quality • Collaborate closely with engineering, product, and quality leaders on cross-functional quality initiatives and release planning • Provide technical guidance and mentorship to junior SDETs and QA team members, fostering skill development and best practices • Review code and test cases contributed by other engineers for quality and maintainability • Maintain accurate and actionable test documentation, reports, and quality metrics for assigned product areas • Investigate and resolve complex defects and production issues through advanced debugging and root cause analysis • Advocate for quality and champion adoption of best practices within and across engineering teams • Proven ability to lead test strategy and risk analysis while making high-impact technical decisions amid ambiguity and prioritizing what matters most.

🎯 Requirements

• Bachelor’s degree in Computer Science or related field, or equivalent experience • 4+ years of experience in software development and test automation • Advanced proficiency in multiple programming languages and test automation frameworks • Deep experience designing, building, and maintaining automation frameworks (e.g., Playwright, Cypress, Selenium, RestAssured) • Strong expertise in API, UI, and integration testing • Proficient in CI/CD pipeline integration and optimization • Skilled in test strategy development, risk analysis, and test architecture • Advanced debugging, troubleshooting, and root cause analysis • Solid understanding of database systems and advanced SQL • Experience with observability and monitoring tools (e.g., DataDog, NewRelic) • Excellent cross-functional communication and mentorship skills • Strong written and verbal communication skills; able to collaborate across functions.

🏖️ Benefits

• Competitive pay • 100% company-paid medical, dental, and vision • 401(k) + company equity • Unlimited paid time off + 13 company paid holidays • Parental leave • Flex Cares Program • Free Flex subscription