Exceptional written and verbal English with complete fluency.
10+ years of overall experience in software development.
5+ years of experience as a lead software developer and co-founder of a software development studio/agency/company.
5+ years of TypeScript experience.
5+ years of backend web development experience (e.g., Node.js, Go, Ruby on Rails).
5+ years of React experience.
Computer Science degree (major or minor).

Design Engineer

Efor

Chicago, IL 60290

Principal System Engineer

Disability Solutions

Libertyville, IL 60048

Sterling Engineering

Mundelein, IL 60060

Outlier

Wauconda, 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)
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
If you are an international student, you may be able to sign up for Outlier if you are on a visa