Senior Software Engineer — Enterprise Web & AI (On-Site)

Uline

Waukegan (IL)

On-site

USD 110,000 - 148,000

Full time

14 days+

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Benefits offered by this job

Health insurance

401(k) with employer match

Generous paid time off

Tuition Assistance

Job summary

Uline, a family-owned company and North America’s leading distributor of shipping, industrial, and packaging materials, is seeking a Senior Software Developer in Waukegan, IL. You will apply full‑stack expertise to build and modernize a business‑critical web platform serving thousands of customers across North America, influencing architecture and delivering high‑performing solutions.

You will provide technical leadership, mentor developers, and collaborate with cross‑functional teams.

Qualifications

Bachelor's degree in Computer Science, Information Technology or related field.
5+ years of software development experience in web/eCommerce using .NET, Java, JavaScript or TypeScript.
Experience with observability/monitoring tools such as Kibana, Elasticsearch or Dynatrace, or data integration tools such as NiFi.
Strong problem-solving, technical leadership and collaboration skills.
Uline does not participate in the H-1B lottery.

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.