Software Developer Engineer in Test

About the role

Trimble is an industrial technology company transforming the way the world works by delivering solutions that enable our customers to thrive. We create technologies that connect the digital and physical worlds, helping our customers increase productivity, quality, safety, and sustainability. From purpose-built products to enterprise-level solutions, our technology empowers professionals in construction, geospatial, government, transportation, and more. AECO: The Trimble AECO segment provides digital construction solutions that increase precision and productivity for Architecture, Engineering, Construction, and Operations. What Makes This Role Great: This is a high-impact, foundational role where you will help establish a brand-new Quality Assurance team in Mexicali. You will have the unique opportunity to integrate cutting-edge AI coding assistants and LLM evaluation libraries into the SDLC, moving beyond traditional QA to pioneer testing techniques for the next generation of AI-driven API ecosystems. Key Exciting Responsibilities Partner directly with AI development engineers to build and validate a next-generation API ecosystem using state-of-the-art testing techniques. Implement and maintain sophisticated automation frameworks using Playwright, Selenium, and API testing tools to ensure high-velocity delivery. Evangelize new automation techniques and best practices, mentoring the growing QA team on AI-assisted development and prompt engineering. Design and execute complex performance, regression, and functional test plans to support critical business decisions through data-driven metrics. Evaluate and recommend emerging test automation and performance tools to continuously improve software processes and AI integration. Essential Skills & Experience Bachelor's degree in Computer Science or a related field with 3+ years of experience in software quality assurance and test automation. Proficiency in scripting and automation using C#, TypeScript, and/or Python. Strong foundational knowledge of AI coding assistants (GitHub Copilot, Cursor) and the ethical application of prompt engineering. Expertise in UI automation (Playwright/Selenium) and API automation frameworks (NUnit, Xunit, or MSTest). Deep understanding of Agile methodologies and cloud-based deployment within a CI/CD pipeline environment. Bonus Points For: Experience evaluating AI models using libraries like Microsoft AI or DeepEval. Foundational understanding of LLM operations and the ability to configure Model Context Protocol (MCP) servers. Familiarity with testing microservices and construction project management principles. Experience in a global work setting with knowledge of performance and security testing tools. Logistics: Location: Mexicali, México (office based) Why You'll Love Working With Us At Trimble, we're not just a company that "does good"-we are a team dedicated to making a tangible, positive Real-World Impact. We build innovative solutions designed to solve the world's most critical challenges. From construction sites to transportation hubs, our work tangibly improves how people live, build, move, and grow. You'll work on projects that truly matter: Our purpose-driven culture means you'll be helping to build and deliver solutions that make work faster, safer, and more sustainable for millions of people worldwide. Our impact is tangible, from connected machines that save fuel to data-driven insights that reduce waste. Collaborate with like-minded people: Our strong internal culture is a "hidden gem." You will work with a collaborative, supportive team that shares your purpose and fosters a genuine sense of belonging. We're a company of "visionary pragmatists" who think boldly and build things that work. Be an owner: Trimble thrives on individuals who take initiative and embrace ownership. You'll find an entrepreneurial spirit where success is often "self-authored," empowering proactive "doers." SDET, AI Testing, QA Automation, Playwright, C#, TypeScript, API Testing, LLM Evaluation, Software Quality Assurance, Mexicali Tech Jobs How to Apply: Please submit an online application for this position by clicking on the 'Apply Now' button located in this posting. Join a Values-Driven Team: Belong, Grow, Innovate. At Trimble, our core values of Belong, Grow, and Innovate aren't just words-they're the foundation of our culture. We foster an environment where you are seen, heard, and valued (Belong); where you have an opportunity to build a career and drive our collective growth (Grow); and where your innovative ideas shape the