Senior Software Development Engineer In Test Jobs in Acton, MA

State Street’s Wealth Custody & Clearing (WC&C) business delivers institutional grade custody, clearing, and platform services to wealth managers, broker dealers, and financial institutions. As WC&C modernizes and scales its digital platforms, quality engineering and automated testing are critical to ensuring platform reliability, data integrity, and regulatory grade controls. We are seeking a Software Development Engineer in Test (SDET) to serve as a hands‑on quality engineering contributor, embedded within Wealth Technology delivery teams and accountable for building robust automated testing solutions across frontend, backend, and integration layers.

This role is a senior individual contributor position focused on test automation, quality engineering, and software validation in a regulated, production critical environment. You will design, build, and maintain automated testing frameworks, partner closely with developers and product teams, and act as a quality advocate throughout the software development lifecycle. This position emphasizes engineering driven testing, not manual execution, or people management.

• Design, develop, and maintain automated test frameworks for frontend, backend, and API driven systems
• Build and execute automated test suites covering functional, regression, integration, and end‑to‑end scenarios
• Partner closely with application developers, product managers, and platform engineers to embed quality early in the SDLC
• Validate system behavior across wealth custody, clearing, trading, and servicing workflows
• Create and maintain test data strategies that support repeatable, reliable automated testing
• Identify, document, and track defects while contributing to root cause analysis and defect prevention
• Ensure applications meet enterprise expectations for accuracy, reliability, resiliency, and regulatory compliance
• Support production readiness efforts, including release validation and post deployment issue analysis

• 7+ years of experience in software quality engineering, SDET, or test automation roles
• Strong experience working as a hands‑on individual contributor embedded within engineering teams
• Proven ability to design and implement automated testing solutions for complex systems
• Experience working in enterprise or regulated environments where quality and control are critical
• Strong collaboration skills and the ability to influence quality outcomes without formal authority

Exposure to wealth management, brokerage, or financial services systems is strongly preferred. Familiarity with validating workflows such as:

• Account and portfolio lifecycle events
• Trading and order management processes
• Operational servicing and exception handling
• Understanding of testing needs related to role‑based entitlements, data accuracy, auditability, and controls
• Experience supporting systems subject to regulatory oversight (e.g., SEC, FINRA) is a plus

• Strong proficiency in test automation tools and frameworks (e.g., Selenium, Cypress, Playwright, or equivalent)
• Experience testing API based and microservices architectures, including integration and contract testing
• Familiarity with Java, JavaScript, or other backend/frontend languages used for test development
• Experience working with CI/CD pipelines to integrate automated testing into deployment workflows
• Knowledge of performance, resiliency, and negative path testing concepts
• Strong understanding of testing best practices, quality metrics, and defect management

Bachelor’s degree in Computer Science, Engineering, or a related field. Equivalent practical experience will be considered.

Support mission critical wealth platforms used across global custody and clearing markets. Operate as a true quality engineer—writing test code, not managing people. Partner with experienced engineers and architects on complex, high impact systems. Competitive compensation, benefits, and a strong technical IC career path.

Salary Range: $90,000 - $157,500 Annual. The range quoted above applies to the role in the primary location specified. If the candidate would ultimately work outside of the primary location above, the applicable range could differ.

Employees are eligible to participate in State Street’s comprehensive benefits program, which includes:

• our retirement savings plan (401K) with company match
• insurance coverage including basic life, medical, dental, vision, long‑term disability, and other optional additional coverages
• paid‑time off including vacation, sick leave, short term disability, and family care responsibilities
• access to our Employee Assistance Program
• incentive compensation including eligibility for annual performance‑based awards (excluding certain sales roles subject to sales incentive plans)
• eligibility for certain tax advantaged savings plans.

For a full overview, visit https://hrportal.ehr.com/statestreet/Home.

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success. We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work‑life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law. Discover more information on jobs at StateStreet.com/careers Read our CEO Statement

Job Application Disclosure: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success. We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work‑life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future. As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law. Discover more information on jobs at StateStreet.com/careers Read our CEO Statement