Senior Software Test Engineer Jobs in Prosper, TX

Job Description: Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

At Caterpillar, technology always has a purpose: solving our customers toughest challenges. Through Cat Technology, we are building the intelligence layer that connects machines, data, and people to make jobsites safer, more productive, and more sustainable.

The Senior Software Test Engineer helps build quality into the Autonomy Services Platform by creating scalable automation for mission, task, command, state, and integration services. This is an opportunity to shape how modern microservices and APIs are validated, use AI-assisted coding platforms to accelerate automation, and improve the reliability of software that supports intelligent machines and autonomous operations at global scale.

• Design and build automated test frameworks for Java/Spring Boot microservices, REST APIs, event-driven services, databases, and distributed workflows.
• Create API, contract, component, integration, end-to-end, regression, performance, resilience, and failure-recovery tests for autonomy platform services.
• Use AI-assisted coding tools and software engineering agents to accelerate test generation, test-data creation, mocks, stubs, failure analysis, refactoring, and documentation.
• Review and validate AI-generated test code for correctness, security, maintainability, coverage, and alignment with engineering standards.
• Validate asynchronous processing, state transitions, retries, timeouts, duplicate requests, message ordering, idempotency, backpressure, and partial-failure recovery.
• Integrate automated tests into CI/CD pipelines and define quality metrics, release-readiness criteria, and actionable feedback for engineering teams.
• Partner with developers, architects, product teams, and mission teams to translate requirements and service contracts into executable tests and mentor others in test-first engineering practices.

• Software Product Testing: Knowledge of software product testing; ability to design, plan, and execute testing strategies and tactics to ensure software quality and adherence to stated requirements.
• System Testing: Knowledge of system and software testing; ability to design, plan, and execute system-testing strategies across all stages of the system lifecycle.
• Software Development: Knowledge of software development tools and activities; ability to build maintainable test frameworks, utilities, and production-quality automation code.
• Software Integration Engineering: Knowledge of integration processes and functions; ability to validate APIs, events, data contracts, interfaces, and dependencies across distributed systems.
• Decision Making and Critical Thinking: Knowledge of decision-making tools and techniques; ability to analyze risks, identify failure modes, prioritize coverage, and make informed quality and release-readiness decisions.

• Strong hands-on experience building software test automation for backend microservices, REST APIs, event-driven systems, and cloud-native applications.
• Experience testing Java 17+ and Spring Boot services using tools such as JUnit, Mockito, Testcontainers, WireMock, REST Assured, Cucumber, or equivalent frameworks.
• Experience with AWS, Docker, Kubernetes, CI/CD pipelines, Kafka or similar messaging platforms, and automated test-environment or test-data setup.
• Practical experience building automation with AI-assisted coding platforms such as GitHub Copilot, Claude Code, Cursor, or equivalent tools, including structured context, verification criteria, human review, and responsible AI controls.
• Strong understanding of API contracts, state management, asynchronous processing, retries, idempotency, observability, resiliency, performance, and security testing.
• Experience creating reusable mocks, stubs, simulators, service virtualization, and integration-test harnesses for systems with unavailable or evolving dependencies.
• Experience with autonomy, robotics, machine integration, industrial systems, simulation-based testing, Software-in-the-Loop, Hardware-in-the-Loop, or Python-based test tooling is preferred.
• A self-driven, ownership-oriented mindset with a focus on continuous improvement, defect prevention, and building quality into the engineering process.

This position is based in Irving, TX. This is a hands-on software quality engineering role focused on automation, APIs, microservices, distributed systems, and platform reliability; it is not primarily a manual testing role.

Summary Pay Range: $112,710.00 - $183,140.00 Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.

• Medical, dental, and vision benefits*
• Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
• 401(k) savings plans*
• Health Savings Account (HSA)*
• Flexible Spending Accounts (FSAs)*
• Health Lifestyle Programs*
• Employee Assistance Program*
• Voluntary Benefits and Employee Discounts*
• Career Development*
• Incentive bonus*
• Disability benefits
• Life Insurance
• Parental leave
• Adoption benefits
• Tuition Reimbursement *
• These benefits also apply to part-time employees

This position requires working onsite five days a week. Relocation is available for this position. Visa sponsorship is available for eligible applicants. Posting Dates: Any offer of employment is conditioned upon the successful completion of a drug screen.

Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.

There's more to work at Caterpillar than just the work itself. We hire smart, friendly people and it shows in our culture. We hold ourselves to high standards and make sure our values of integrity, excellence, teamwork, commitment and sustainability come to life in the way we work. We make sure our employees feel continuously challenged while also supported. We provide professional growth opportunities, including leadership programs. We celebrate the diversity of our team, while also working together as one Caterpillar. Our culture, like everything at our company, is made possible by each employee’s contribution. Person by person, we create the environment we work in, and we are proud of the Caterpillar we’ve built.