[All remote jobs](https://jobicy.com/jobs.md)[![Flex logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2025/06/7bfdefe3-221.jpeg)](https://jobicy.com/company/flex.md)[Flex](https://jobicy.com/company/flex.md) # Senior Software Development Engineer in Test (SDET) Review the role, location requirements, compensation details, and application process before deciding whether this opportunity fits your next career move. [Apply for this job](#job-application)[View company](https://jobicy.com/company/flex.md)ShareRemote from🌐 AnywhereSalaryUSD 115,600–170k / yrDepartment[QA & Testing](https://jobicy.com/categories/qa-testing.md)EmploymentFull TimeExperienceSeniorPublished19 Oct 2026Apply before18 Nov 2026Listing views55Application actions3Application toolkit ## Make your next move. Prepare your resume, explore your fit, and draft a cover letter for this opportunity. AI Summary ## The role, at a glance. Flex is seeking a senior SDET to own automation and quality practices for substantial product areas in a fintech environment. The role focuses on architecting and maintaining API, UI, and integration test frameworks, embedding automated testing in CI/CD, and directing test strategy and risk analysis. The successful candidate will investigate complex defects, improve systemic quality processes, and use quality metrics to raise release reliability. This is a senior cross-functional role that includes code and test reviews, release-planning partnership, and mentorship of junior SDETs and QA engineers. ## Role DNA A quick view of the complexity, pace, ownership and collaboration implied by the job description. ### Job Complexity 5/5EasyHard ### Pace & Pressure 4/5RelaxedFast-paced ### Autonomy Level 5/5GuidedFull ownership ### Communication Load 5/5IndependentCollaborative AI insightThe role requires deep automation architecture expertise, advanced debugging, and ownership of quality decisions across complex systems. It also demands leadership under ambiguity and the ability to influence engineering and product teams without relying on direct authority. ## Salary analysis Estimated compensation compared with the broader US market for similar roles. Estimated job median (per year)Highly competitive$142,800US market range (per year)$115.60k–$170k0$187.00k AI insightThe yearly pay period is inferred from the job context; it was not explicitly stated by the employer. The employer discloses a USD 115,600–170,000 starting-pay range across US location tiers. The annual period is inferred from the compensation magnitude and the full-time senior US engineering context; the estimated market range is presented on the same annual basis. ## Core skills Skills and capabilities most closely associated with this opportunity. [Test automation architecture](https://jobicy.com/jobs?search_keywords=Test%20automation%20architecture.md)[Playwright](https://jobicy.com/jobs?search_keywords=Playwright.md)[Cypress](https://jobicy.com/jobs?search_keywords=Cypress.md)[Selenium](https://jobicy.com/jobs?search_keywords=Selenium.md)[RestAssured](https://jobicy.com/jobs?search_keywords=RestAssured.md)[API testing](https://jobicy.com/jobs?search_keywords=API%20testing.md)[UI testing](https://jobicy.com/jobs?search_keywords=UI%20testing.md)[Integration testing](https://jobicy.com/jobs?search_keywords=Integration%20testing.md)[CI/CD pipelines](https://jobicy.com/jobs?search_keywords=CICD%20pipelines.md)[Test strategy](https://jobicy.com/jobs?search_keywords=Test%20strategy.md)[Risk analysis](https://jobicy.com/jobs?search_keywords=Risk%20analysis.md)[SQL](https://jobicy.com/jobs?search_keywords=SQL.md)[Root cause analysis](https://jobicy.com/jobs?search_keywords=Root%20cause%20analysis.md)[Observability monitoring](https://jobicy.com/jobs?search_keywords=Observability%20monitoring.md)[Technical mentorship](https://jobicy.com/jobs?search_keywords=Technical%20mentorship.md) Sample interview questionsHow would you design an automation framework that supports API, UI, and integration testing at scale?I would create layered components with shared configuration, test-data utilities, reporting, and environment controls, while keeping API, UI, and integration adapters independent. I would prioritize deterministic tests, clear ownership, parallel execution, and straightforward local debugging so the framework remains maintainable as product complexity grows. How do you decide which scenarios should be automated first for a major feature? I start with risk analysis: customer impact, payment or data integrity risk, likelihood of regression, system complexity, and frequency of execution. I automate stable, high-value regression paths first, then expand coverage based on production incidents, release patterns, and observed gaps. Describe how you would integrate automated tests into a CI/CD pipeline without creating an unreliable bottleneck. I would use a tiered approach: fast unit and API checks on pull requests, targeted integration tests for changed services, and broader end-to-end suites in controlled post-merge or pre-release stages. I would track flaky tests separately, enforce quarantine and ownership practices, and optimize parallelism and test data to preserve useful feedback speed. What is your approach to investigating an intermittent production defect that automated tests do not reproduce? I would first collect evidence from logs, traces, metrics, feature flags, and affected request data to identify patterns in timing, environment, and inputs. Then I would reproduce the conditions in a controlled environment, narrow the failure through hypothesis-driven debugging, document the root cause, and add focused automated coverage plus monitoring to prevent recurrence. How do you mentor junior SDETs while maintaining high testing standards? I combine practical code reviews with pairing, reusable examples, and clear quality principles for test design, assertions, data isolation, and maintainability. I set progressive ownership goals, explain the risk behind review feedback, and encourage engineers to use metrics and production outcomes to improve their testing decisions. Opportunity details ## About this role. Flex is a growth-stage, NYC headquartered FinTech company that is building the payment layer for life’s essential bills, giving households one place to see, split, and pay their bills around how they live and get paid. By offering greater choice over how and when payments are made and allowing eligible on time payments to help build a positive credit history, Flex puts households back in control of their cash flow. That work brings together people with different perspectives who challenge the status quo and take ownership of solving difficult problems. For you, that means doing the best work of your career next to people who make you better, and together bringing ideas to life that make a real impact for the people we serve. About the role As a Senior SDET at Flex, you will own the test automation and quality efforts for entire product areas or major features. You will architect and optimize automation frameworks, lead test strategy for complex systems, and regularly collaborate across teams to deliver reliable and high-quality releases. This role offers the opportunity to mentor others, drive cross-functional quality improvements, and play a critical part in shaping the future of our engineering excellence. What you’ll do * 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. Key qualifications * Bachelor’s degree in Computer Science or related field, or equivalent experience * 5+ 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 ### Compensation Flex takes a market-based approach to pay, and compensation may vary depending on your primary work location. Work locations are categorized into one of three tiers based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be commensurate with their experience, qualifications, and Flex’s internal leveling guidelines and benchmarks. Tier 1 (NYC/Bay Area, Los Angeles, Seattle) $136,000—$170,000 USD Tier 2 (Austin, Washington D.C. Philadelphia, San Diego, Chicago, Atlanta) $122,400—$153,000 USD Tier 3 (Salt Lake City, all other USA cities) $115,600—$144,500 USD ### Life at Flex We understand that it takes a diverse team of highly intelligent, curious, determined, empathetic, and self aware people to grow a successful company. Our HQ is located in New York City, but we have employees located throughout the US, Australia, Canada and South America. We are growing quickly, but deliberately, with a focus on building an inclusive culture. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity workplace. Offices Roles posted in New York, San Francisco, and Salt Lake City are hybrid positions with on-site expectations of 2-3 days per week in our local offices. For candidates outside of these areas, you may be eligible for our relocation assistance program. Benefits View our benefits and more at [getflex.com/careers](https://getflex.com/company/careers). 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