> Markdown version of [/jobs/ext/3657558-senior-software-developer-web](https://www.wearedevelopers.com/jobs/ext/3657558-senior-software-developer-web). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Developer - Web - **Company:** Uline Shipping Supplies - **Location:** Silver Lake, WI, United States - **Experience:** Expert - **Salary:** $110,000.0 - $148,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), .NET Framework, Artificial Intelligence, Application Performance Management, Code Review, Data Integration, Elasticsearch, Monitoring of Systems, Search Technologies, Software Engineering, TypeScript, Web Applications, GitHub Copilot, Claude Code, Information Technology, Apache Nifi, Azure AI, Kibana, Dynatrace - **Published:** October 9, 2026 - **Apply:** https://www.careerjet.com/job/us18603c3a4368bc315121a1d4f6d239b6/eaa ## About the Role * Bachelor's degree in Computer Science, Information Technology or related field. * 5+ years of software development experience, including experience developing web or eCommerce applications using .NET, Java, JavaScript or TypeScript. * Experience with observability and monitoring tools such as Kibana, Elasticsearch or Dynatrace, or data integration tools such as NiFi preferred. * Strong problem-solving, technical leadership and collaboration skills. * Uline does not participate in the H-1B lottery. ## Description Provide technical leadership, mentor developers and work with teams across Uline to continually improve the customer experience. Careers Packed with Potential. Backed by 45+ years of success, Uline offers opportunities to grow your career with stability you can count on. Position Responsibilities * Design, develop and modernize large-scale web applications, influencing architecture and technical direction for Uline.com. * Contribute to project planning, architecture discussions and code reviews for complex initiatives from planning through delivery. * Partner with teams across Uline to improve application performance and deliver solutions that enhance the customer experience. * Mentor and coach developers, providing technical guidance and helping resolve engineering challenges. * Explore and apply AI-powered solutions and emerging technologies, including Claude Code, GitHub Copilot, Azure AI and vector search, as part of ongoing modernization.