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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Digital Factory UX/UI Test Engineer IV - **Company:** RTX - **Location:** Tucson, AZ, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Automation of Tests, Microsoft Azure, Software Bug Management, Software Documentation, Digital Technology, Design of User Interfaces, Human-Computer Interaction, Python (Programming Language), Regression Testing, Azure DevOps Pipelines, Selenium, SQL Databases, Test Case, Test Management, User Interface Testing, Website Wireframe, Playwright, Data Analytics, Figma - **Published:** August 30, 2026 - **Apply:** https://dejobs.org/x/x/4137DC0FC4D14E56871B407CC127AF33/job/ ## About the Role The ability to obtain and maintain a U.S. government issued security clearance is required., * Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience unless prohibited by local laws/regulations. * 8+ years of experience in UI/UX design, front-end testing, human-machine interfaces, or digital manufacturing systems. * Experience designing user-centric interfaces using Figma, Ignition, or similar tools. * Experience in front-end testing, UX validation, and test plan development. Qualifications We Prefer * Experience using Azure DevOps (or similar tools) for test management and defect tracking. * Proficiency with Python and SQL for lightweight automation and validation scripting. * Experience with automated UI testing tools (Selenium, Playwright, Robot Framework). * Experience establishing testing standards or leading testing initiatives in engineering organizations. * Experience with Ignition, MES systems, IIoT connectivity, or digital factory applications. * Familiarity with manufacturing workflows, operator interfaces, and plant floor digital systems. ## Description The Connected Factory Intelligence (CFI) department develops, deploys, and enhances digital factory solutions that enable modern, data-driven manufacturing. We are seeking a Principal Digital Factory UX/UI Test Engineer to serve as the UI/UX design authority and front-end test expert for our digital manufacturing applications. This role drives the creation of intuitive operator experiences, validates front-end functionality, establishes test best practices, and builds regression test automation that ensures reliable, high-quality releases., The Principal Digital Factory UX/UI Test Engineer leads UI/UX design, front-end testing, usability validation, and regression automation for Ignition-based applications, MES workflows, dashboards, and IIoT-enabled systems. The engineer partners with manufacturing engineers, software developers, and stakeholders to design intuitive user interfaces, validate operator workflows, prevent defects, and establish department-wide testing standards. * UI/UX Design Leadership * Lead the design of modern, intuitive UI/UX for Ignition screens, MES workflows, dashboards, and digital factory applications. * Develop wireframes, prototypes, and final layouts using tools such as Figma and Ignition Designer. * Establish consistent UX patterns, visual standards, and interaction guidelines for all CFI applications. * Collaborate closely with engineers and stakeholders to ensure designs align with operator needs and manufacturing workflows. Front-End Testing & Validation * Own the front-end testing strategy for digital factory applications across CFI. * Develop and execute structured test plans for usability, workflow accuracy, interface clarity, error-handling behavior, and navigation flow. * Validate implementation fidelity between UX designs and deployed features. * Conduct iterative UI/UX reviews and acceptance testing to prevent defects from entering production environments. Testing Standards & Department Best Practices * Define testing best practices, templates, and guidelines for software engineers and stakeholders. * Establish test case documentation standards, release readiness expectations, and UX validation processes. * Train engineers on testing fundamentals, Azure DevOps workflows, defect triage, and UI/UX acceptance criteria. * Automated Regression Testing * Build and maintain automated regression tests focused on front-end interactions, click-path validation, and navigation behavior. * Use tools such as Selenium, Playwright, or similar Python-based automation frameworks to simulate user workflows. * Integrate automated tests into Azure DevOps pipelines and ensure consistent operation before releases. What You Will Learn * Opportunities to lead UI/UX strategy and testing modernization across CFI. * Exposure to Industry 4.0 technologies, digital manufacturing innovation, and advanced automation. * Leadership experience shaping how future digital factory applications are designed, validated, and deployed. * Mentoring and collaboration across cross-functional engineering and operations teams., * Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as: * Onsite : Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. ## Related Videos - [AIQSpecFlow: Improves and automates your agile process of specification and creation of testcases.](https://www.wearedevelopers.com/videos/100084-aiqspecflow-improves-and-automates-your-agile-process-of-specification-and-creation-of-testcases) - [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis) - [UX is a fullstack job!](https://www.wearedevelopers.com/videos/1020-ux-is-a-fullstack-job) - [Proactive monitoring and smoke testing in your production environment](https://www.wearedevelopers.com/videos/139-proactive-monitoring-and-smoke-testing-in-your-production-environment) - [AI as a Test Designer: Transforming Experience into Automated Testing](https://www.wearedevelopers.com/videos/1984-ai-as-a-test-designer-transforming-experience-into-automated-testing) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Now is the time for industrialized software development](https://www.wearedevelopers.com/magazine/601-now-is-the-time-for-industrialized-software-development) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Why developer experience matters](https://www.wearedevelopers.com/magazine/514-why-developer-experience-matters)