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Senior QA / SDET Engineer

3B Staffing LLC, Boston, MA, United States


Role - Senior QA / SDET Engineer

Banking services

Rate: up to $63 hr

Location: Norwell, MA- local only

Duration: 1 year +

Hybrid - Go to office 2 or 3 days a week

Visa - any except OPT and H4 and H1-B

MUST BE LOCAL CANDIDATES (Boston area) -

Financial exp would be great

We are seeking a Senior QA / Software Development Engineer in Test (SDET) with strong engineering capability to support (a) refactoring of existing client facing applications onto strategic components and/or (b) development of a new unified client portal. This is an automation driven engineering role working closely with Java and React engineers in a shared quality model.

Key Responsibilities
• Design and implement automated unit, integration, end to end, and stress tests for both refactored components and new UI functionality, using existing internal frameworks and approved tools (e.g., Playwright, Postman).
• Enhance current automation frameworks where necessary, aligned with established engineering standards.
• Collaborate with backend and frontend engineers to test full workflows across UI, APIs, and microservices.
• Participate in code and test reviews, contributing to testability, best practices, and engineering quality.
• Perform limited exploratory testing early in the cycle until automation coverage is established.
• Ensure automated tests integrate into CI/CD pipelines to support rapid, reliable delivery across both the refactoring programme and greenfield portal build.
• Apply familiarity with Post Trade and Collateral Management lifecycle events (e.g., allocations, confirmations, settlements, margining) to design realistic and business aligned automated tests.

Required Experience

• Bachelor's degree in Computer Science, Engineering, or equivalent.

• 10+ years of combined software engineering and QA automation experience, consistent with seniority expectations across all roles.

• Strong hands-on automation skills using Java or JavaScript/TypeScript, especially with Playwright, Postman, REST/JSON testing, and browser/UI automation.

• Solid understanding of modern web systems (React frontends, REST APIs, microservices) and ability to test full-stack workflows.

• Experience integrating automated tests into CI/CD pipelines.

• Comfortable operating in environments without a separate QA team, where quality is owned collectively.

• Strong debugging, analysis, and communication skills.

• Demonstrated experience testing systems within financial institutions, with exposure to trading, post-trade, collateral, or risk-related platforms in regulated environments.

Nice to Have
• Experience testing cloud-hosted applications (AWS).
• Exposure to Docker/Kubernetes environments.
• Experience with performance or load testing tools.