Software Development Engineer in Test - C# SDET

As a Senior Specialist in Software Development & Engineering (SDET), you'll contribute to building reliable, scalable, and client-centric digital solutions that support how advisors and clients onboard and engage with Schwab. This role sits within Advisor Services Technology on the Digital Onboarding team, where quality engineering is embedded into everything we deliver. You'll collaborate across engineering, architecture, and product teams to ensure our platforms are resilient, accessible, and built with our clients' needs at the center.

You'll thrive in an agile, fast-moving environment that values curiosity, accountability, and continuous improvement. Your work will help reduce risk, accelerate delivery, and enable smoother experiences for our clients and advisors-making a meaningful impact at Schwab.

What You'll Do

• Build, maintain, and enhance scalable UI and API test automation frameworks that support critical, client-facing platforms

• Partner with engineers and architects to embed testability, automation, and quality earlier in the development lifecycle

• Identify potential quality risks early and apply preventive testing strategies to improve platform stability and performance

• Enable faster and safer integrations by automating validation of APIs and core services

• Apply AI-assisted testing approaches to improve efficiency, accuracy, and test coverage

• Serve as a quality engineering leader for one or more agile teams by elevating standards, practices, and quality-driven decisions

• Create clear, concise documentation that supports both technical and non-technical stakeholders

• Foster a collaborative, inclusive environment where experimentation, learning, and shared ownership are encouraged

• Bachelor's degree in computer science, engineering, or a related field, or equivalent practical experience

• 3+ years of experience designing, developing, or maintaining automated testing solutions

• Demonstrated ability to build and maintain automated tests for APIs, services, or user interfaces using C# with Reqnroll, TypeScript, Webdriver IO, Playwright, nUnit (c#) Jasmine(Angular), Karma JS - Test runner, Cucumber and Gherkin and follow the principles of Test-Driven Development (TDD), Behavioral Driven Development (BDD), and Acceptance Test Driven Development (ATDD).

• Good understanding with continuous integration and continuous deployment (CI/CD) concepts, unit testing principles and implementations, API test automation techniques as well as automated deployment pipeline tools (Bamboo /GIT)

• Good knowledge of new standard industry tools for logging bugs and managing test cases (ex. JIRA, Zephyr).

• Demonstrated ability to build and maintain automated tests for APIs, services, or user interfaces

• Strong foundation in software development concepts, including object-oriented design, algorithms, and data structures

• Experience contributing within agile or iterative delivery teams

• Ability to analyze complex problems, communicate clearly, and apply sound judgment

Preferred Qualifications

• Experience supporting or testing highly available, scalable applications

• Familiarity with modern web technologies and front-end frameworks

• Experience working with relational or non-relational data stores

• Exposure to CI/CD pipelines and test automation in cloud-based environments

• Exposure to write/run the performance test scripts using JMeter to see how scalable and responsive APIs and event-driven consumer applications are under different load conditions.

• Interest in mentoring others and influencing quality engineering best practices

• Experience working in regulated or security-conscious environments

At Schwab, you're empowered to shape your future. We champion your growth through meaningful work, continuous learning, and a culture of trust and collaboration-so you can build the skills to make a lasting impact. Our Hybrid Work and Flexibility approach balances our ongoing commitment to workplace flexibility, serving our clients, and our strong belief in the value of being together in person on a regular basis.

We offer a competitive benefits package that takes care of the whole you - both today and in the future:

• 401(k) with company match and Employee stock purchase plan

• Paid time for vacation, volunteering, and 28-day sabbatical after every 5 years of service for eligible positions

• Paid parental leave and family building benefits

• Tuition reimbursement

• Health, dental, and vision insurance

What's in it for you:

At Schwab, we're committed to empowering our employees' personal and professional success. Our purpose-driven, supportive culture, and focus on your development means you'll get the tools you need to make a positive difference in the finance industry. Our Hybrid Work and Flexibility approach balances our ongoing commitment to workplace flexibility, serving our clients, and our strong belief in the value of being together in person on a regular basis.

We offer a competitive benefits package that takes care of the whole you - both today and in the future:

401(k) with company match and Employee stock purchase plan

Paid time for vacation, volunteering, and 28-day sabbatical after every 5 years of service for eligible positions

Paid parental leave and family building benefits

Tuition reimbursement

Health, dental, and vision insurance

At Schwab, you're empowered to make an impact on your career. Here, innovative thought meets creative problem solving, helping us challenge the status quo and transform the finance industry together.