Sr. Specialist, Software Development Engineer in Test - Santander Holdings USA, Inc. - Miami, FL
Santander Holdings USA, Inc.
It Starts Here:
Santander is a global leader and innovator in the financial services industry and is evolving from a high-impact brand into a technology-driven organization. Our people are at the heart of this journey and together, we are driving a customer-centric transformation that values bold thinking, innovation, and the courage to challenge what’s possible. This is more than a strategic shift. It’s a chance for driven professionals to grow, learn, and make a real difference.
If you are interested in exploring the possibilities We Want to Talk to You!
The Difference You Make:
• **This is a hybrid role located in the Coconut Grove area of Miami***
The Sr. Specialist, Software Development Engineer in Test (SDET) is responsible for ensuring the quality, reliability, and performance of applications through automation, technical testing, and deep collaboration with engineering teams. SDETs combine software development skills with quality engineering practices to design, build, and maintain automated test frameworks, tools, and test suites across UI, API, backend, and integrated systems for high availability, secure, regulated financial platforms. They participate throughout the SDLC — from design to deployment — to ensure testability, accelerate releases, and drive an automation-first quality culture.
• Analyze requirements to design test plans, test cases, and test acceptance criteria.
• Perform and support wide range of functional and non-functional testing types including automated functional and feature testing, regression, integration, system, compatibility, API, and performance tests.
• Develop and maintain automated test scripts and reusable frameworks, tools, utilities (UI/API/backend/mobile)
• Integrate automation into CI/CD pipelines and support continuous testing (Shift left/right)
• Identify, log, and report defects; support root-cause analysis; perform manual tests when needed to cover critical paths or exploratory tests.
• Write SQL queries for bac