3101 Backend Developer Java Spring Mid Level jobs in Chicago,IL

Full Stack Developer

Outlier

Chicago, IL

2+ years of experience in backend engineering, AI automation, or complex systems integration
Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
Practical experience building for live, non-mocked environments and handling multi-turn system interactions
Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
This is a 1099 contract opportunity on the Outlier.ai platform. Because this is a freelance opportunity, we do not offer internships, sponsorship, or employment. You must be authorized to work in your country of residence.

3B staffing

Chicago, IL 60691

ITlearn360

Chicago, IL 60290

Babki

Chicago, IL 60290

Jobot

Chicago, IL 60290

TRC Talent Solutions

Chicago, IL 60601

Ocean Network Express

Lombard, IL 60148

2+ years of modern systems management
2+ years of application and cloud service management
3+ years of desktop and application IT Support
3+ years customer service experience in IT Support
Strong knowledge of supporting Windows 10 and 11 Laptops, iOS products, Android products, and Chromebooks.
Working knowledge of Google Workspace Enterprise or demonstrate a willingness to learn
Ability to take part in on-call rotation is required
Some travel and flexibility in work hours is required
Resumes may be submitted to: usa.onecareers@one-line.com
Experience with and understanding of networking, SD-WAN, IT Security, and modern IT Service Management.