Senior Frontend Engineer React/TypeScript Expert

John Deere Harvester Works in East Moline, IL seeks a Senior Software Engineer to design, build, and maintain scalable applications integrating with enterprise platforms. You will lead architecture, review code, and mentor teams across React/TypeScript, APIs, data stores, and pipelines. The role emphasizes automated testing, performance monitoring, and strong DevOps ownership (CI/CD, observability). Onsite position with visa sponsorship not available; manufacturing domain exposure is a plus.