Senior Software Development Engineer in Test (SDET)

Senior Software Development Engineer In Test (SDET)Private asset markets have 10x to 9.8T in AUM over the past decade and are projected to grow to $17T in the next five years. However, digital infrastructure has not kept pace, with most of the market operating predominantly in error-prone, internal-only software solutions.PactFi provides secure, end-to-end, operational infrastructure for managing complex private credit transactions. Our web-based application brings together all parties involved in such a transaction to more efficiently allocate capital, complete KYC, share documents, manage funds flow, and more. The platform is secured to a bank-grade standard, and we have received our SOC 2 Type 2 attestation.PactFi was developed in close partnership with two of the industry's largest players, both of whom represent the top 3 players in the private credit space by both size (AUM) and deal activity.We are seeking a Senior Software Development Engineer in Test (SDET) to help scale end-to-end test automation for a modern fintech platform.Role and ResponsibilitiesPlaywright-based automation engineeringDistributed system validation (API, UI, data layers)AI-assisted testing and automation practicesResponsible for transforming test automation into an AI-augmented quality system to enable:Faster, reliable releases with solid understanding of CI/CD and modern DevOps practicesStrong regression signal with minimal noiseScalable and maintainable test coverage across critical business workflowsAutomation Strategy & LeadershipOwn design and evolution of automation testing framework (primarily Playwright)Establish best practices for E2E, integration, and regression testingDrive test coverage across critical financial workflows (deal lifecycle, cash flows, reporting, etc.)Mentor engineers and QA contributors; set test quality and maintainability standardsHands-On EngineeringBuild and maintain robust Playwright test suites (TypeScript/JavaScript)Develop reusable testing utilities, fixtures, and CI/CD integrationsImplement parallelization, test isolation, and flakiness mitigation strategiesIntegrate tests into CI pipelines (e.g., GitHub Actions, CircleCI)Product & Domain AlignmentTranslate complex financial workflows (e.g., loan servicing, covenant tracking, capital calls) into deterministic test casesValidate data integrity across systems (APIs, databases, reporting layers)Collaborate with product and domain experts to identify edge cases and risk scenariosQuality & ReliabilityDefine SLAs for test reliability and pipeline performanceMonitor and improve test signal vs. noiseIntroduce observability into testing (logs, traces, artifacts)Lead incident retrospectives related to quality gapsAI-Driven Testing & DevelopmentImplement and scale AI-assisted test case generation from product requirements, user stories, and production dataLeverage LLM-based tools to generate, refactor, and maintain Playwright test suitesBuild workflows for automated test creation, prioritization, and gap detection using AIEvaluate and integrate tools for self-healing tests, intelligent selectors, and failure triagingPartner with engineering to incorporate AI into broader development workflows (code generation, debugging, QA automation)Establish guardrails and validation strategies to ensure correctness and determinism in AI-generated testsRequired Qualifications5+ years in QA automation, SDET, or software engineering rolesDeep expertise with Playwright (2+ years required) in production environmentsStrong proficiency in TypeScript/JavaScriptExperience designing scalable test frameworks from scratchSolid understanding of CI/CD systems and modern DevOps practicesExperience testing API-driven architecture and distributed systemsDomain ExpertisePrevious experience in fintech, capital markets, or lending platforms.Familiarity with:Loan lifecycle and servicingPrivate credit structuresCash flow modeling and waterfall structuresFinancial reporting and reconciliationsNice-to-HaveExperience with data validation pipelines (SQL, dbt, etc.)Exposure to backend languages (Python, Java, or Go)Experience with performance or load testing toolsFamiliarity with cloud infrastructure (AWS, GCP)What Success Looks LikeHigh-confidence releases with minimal regression riskStable, fast CI pipelines with meaningful test coverageClear alignment between product logic and automated validationScalable testing culture embedded across engineeringWhy JoinBuild foundational infrastructure in a fast-growing private credit fintechWork directly with domain experts shaping modern capital markets toolingHigh ownership in a Series A environment with strong growth trajectoryCompetitive compensation + equityStrong understanding of financial systems—particularly within private credit, lending, or capital markets workflowsDefine testing architecture, improve release confidence, and partner closely with engineering, product, and operations to ensure platform reliability in a high-stakes financialWhat We OfferCompetitive salary + equity.Healthcare coverage.401k