Senior API Automation Engineer

Senior API Automation Engineer

Location: Hopkins, MN; Minneapolis, MN; Brookfield, WI; or Denver, CO

*Hybrid onsite 2-3 days per week

Duration: 12 month project

Position Overview

We are seeking a Senior API Automation Engineer to lead the development and maintenance of robust, scalable API test suites across U.S. Bank's digital platforms. This role will focus on contract testing, security validation, and backend integration coverage for Embedded Finance APIs, internal services, and mainframe systems. The ideal candidate will bring deep technical expertise, strong collaboration skills, and a passion for quality engineering.

Key Responsibilities

• Design, develop, and maintain automated API test suites using Karate, Playwright, and RestAssured
• Lead contract testing, security validation, and integration testing across service layers
• Validate backend processes and business rules for systems such as SOR, Domains, and Read Store using SSHLibrary and CLI wrappers (Python/Java)
• Collaborate with developers, architects, and QA leads to ensure testable service contracts and early defect detection
• Integrate API automation into CI/CD pipelines (Jenkins, GitHub Actions, Azure DevOps) and ensure test stability
• Mentor mid-level and junior engineers, contribute to reusable test libraries, and enforce best practices
• Participate in sprint ceremonies, quality governance reviews, and continuous improvement cycles

Required Experience

• 7 years of experience in test automation with a strong focus on API and backend testing.
• Proven expertise in API contract testing, service mocking, and backend data validation.
• Hands-on experience with Karate (preferred),playwright, and RestAssured.
• Familiarity with mainframe systems and secure CLI-based validation is a plus.
• Experience working in Agile/Scrum environments with cross-functional teams.
• Financial services or regulated industry experience preferred.

Tooling Expertise

• API Automation: Karate (primary), Playwright, RestAssured (Java-based legacy support)
• Backend Automation: SSHLibrary, CLI wrappers (Python/Java) for backend validations
• CI/CD Integration: Jenkins, GitHub Actions, Azure DevOps
• Test Data Management: TDP (Test Data Portal) for provisioning and conditioning test data
• Reporting: Robot Framework logs, Allure, ReportPortal, Power BI dashboards

Soft Skills & Leadership

• Strong analytical and debugging skills with a quality-first mindset.
• Effective communicator and collaborator across distributed teams.
• Ability to mentor and support junior team members.
• Comfortable leading innovation pilots and contributing to continuous improvement efforts

Overall Technology Stack