Software Development Engineer in Test (SDET)

Role Overview

Software Development Engineer in Test (SDET) to build and maintain automated test frameworks for modern web applications. You’ll troubleshoot client-side issues, validate systems using SQL/Python, and partner across engineering, product, and DevOps to ensure quality throughout the software development lifecycle.

Responsibilities

• Design, develop, and maintain scalable automated test frameworks for web-based applications
• Build and run automated test suites: functional, regression, integration, and end-to-end
• Support applications using modern frontend technologies, including Angular and React
• Use open-source automation frameworks such as Selenium, Cypress, Playwright, and WebdriverIO
• Debug client-side JavaScript issues using Chrome DevTools (console errors, network failures, UI rendering, performance bottlenecks)
• Develop test utilities, scripts, and validation tools with Python
• Use SQL for data validation, backend verification, reconciliation, and test data analysis
• Collaborate with software engineers, QA/product stakeholders, and DevOps to drive quality delivery
• Integrate automated tests into CI/CD pipelines using GitLab CI or Jenkins
• Work in Linux environments for test execution, troubleshooting, and automation support
• Analyze defects, isolate root causes, and document findings clearly
• Use AI-assisted development tools (e.g., Cursor, Claude, GPT) to improve productivity and debugging workflows
• Contribute to continuous improvement of quality engineering practices and standards

Requirements

• Bachelor’s degree in CS/Engineering (or equivalent practical experience)
• 7+ years in software QA/testing, preferably in financial services/trading systems
• Proven SDET / QA Automation Engineer experience
• Hands-on experience building/maintaining test automation frameworks
• Experience with modern automation frameworks: Selenium, Cypress, Playwright, WebdriverIO
• Strong understanding of testing web apps built with Angular/React
• Strong debugging skills for client-side JavaScript using Chrome DevTools
• Strong SQL knowledge for querying/validation and investigation support
• Strong Python knowledge for automation utilities and data processing
• CI/CD experience with GitLab and/or Jenkins
• Well-versed with Git
• Strong Linux command-line and scripting/troubleshooting skills
• Experience with automated testing for UI, API, and regression
• Strong analytical, debugging, and problem-solving skills; excellent communication and collaboration

Preferred Qualifications

• Prior experience in a trading environment (and/or within financial institutions)

Work Location / Remote Policy

• Fully remote (Tradeweb Technology hub in Jersey City for meetings/collaboration)
• Occasional days where travel to Jersey City office may be recommended for off-sites