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Freelance Game Engine Developer Jobs in Illinois

Fox

Streaming Freelancer - Big Ten Network

Chicago, IL · On-site

$107K - $146K/yr

This freelance position runs for the duration of the academic calendar (August through mid-June ... with BTN Programming and Student U teams, including same-day and future changes * Assist with ...

seoClarity

Sales Solutions Engineer (Chicago-based)

Chicago, IL · On-site

$80K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

We're looking for someone who can bring enterprise SEO, AI search, data, and platform capabilities ... game room for casual breaks or informal team connection. * Fitness & Commuter-Friendly Perks ...

Nuphoriq

Director of Web Strategy & Design

Chicago, IL · On-site

  • Medical

  • Retirement

  • PTO

You'll lead our web team and freelancers through the website process. * Innovation. You'll improve ... You don't need to be the only writer, SEO person, analyst, or developer, but you do need to ...

Nuphoriq

Director of Web Strategy & Design

Chicago, IL · On-site

  • Medical

  • Retirement

  • PTO

You'll lead our web team and freelancers through the website process. * Innovation. You'll improve ... You don't need to be the only writer, SEO person, analyst, or developer, but you do need to ...

Simplex Trading

Software Engineer

Chicago, IL · On-site

$125K - $200K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

... engine design * Design, build, and maintain efficient, reusable, and reliable C++ code on Linux ... In-person happy hours, celebrations throughout the year, game nights, video game fun, and so much ...

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Infographic showing various Freelance Game Engine Developer job openings in Illinois as of June 2026, with employment types broken down into 88% Full Time, 7% Part Time, 1% Temporary, 3% Contract, and 1% Nights. Highlights an 84% Physical, 1% Hybrid, and 15% Remote job distribution.

Senior Lua Developer (Roblox) - AI Code Evaluation

Lifted, an Upwork Company™

Chicago, IL • On-site, Remote

$60/hr

Contractor

Posted 17 days ago

Job description

Company Description
An enterprise client is seeking experienced Lua Developers to support AI model training through technical evaluations, scripting tasks, and code quality reviews. This opportunity is ideal for developers who have strong Lua programming skills and experience building or scripting within the Roblox ecosystem.
The client partners with leading AI organizations to improve the quality of next-generation AI models by leveraging the expertise of experienced software developers. Selected freelancers will help evaluate AI-generated code, review programming solutions, and contribute to the development of high-quality training data used to advance generative AI technologies.
Job Description
This opportunity is ideal for experienced Lua programmers who enjoy solving technical challenges, reviewing code, and improving software quality.
What You'll Do:
  • Review, analyze, and evaluate Lua code for accuracy, quality, and best practices.
  • Complete technical evaluations and scripting-related tasks involving Lua programming.
  • Identify bugs, performance issues, and opportunities to improve existing code.
  • Develop and modify Lua scripts based on project requirements.
  • Apply strong programming fundamentals, including modular design, data structures, and debugging techniques.
  • Work with Roblox Studio and Roblox development environments where applicable.
  • Contribute to AI model training by providing high-quality technical feedback and code evaluations.
  • Collaborate with the client's AI evaluation platform while following detailed project guidelines.

Qualifications
Requirements:
  • Advanced proficiency in Lua programming, including scripting, debugging, and code optimization.
  • Hands-on experience using Roblox Studio and/or developing applications or games on the Roblox platform.
  • Strong understanding of programming fundamentals, including data structures, functions, modular programming, and performance optimization.
  • Ability to independently review, analyze, and improve existing Lua code.
  • Professional working proficiency in English with strong written communication skills.
  • Ability to work independently and follow detailed technical instructions.

Nice to Haves:
  • Experience developing Roblox games or interactive experiences.
  • Experience reviewing code or conducting technical quality assurance.
  • Familiarity with software testing, debugging, and code optimization techniques.
  • Experience contributing to AI, machine learning, or code evaluation projects.

Additional Information
  • Fully remote, project-based opportunity.
  • Up to $60/hour, depending on project availability.
  • Expected workload ranges from 10-39 hours per week, although work volume may fluctuate.
  • Weekly lump-sum payments for work completed during the previous week.
  • Qualified candidates will receive an Upwork contract offer along with onboarding instructions.
  • Candidates who successfully complete the initial survey will be invited to a paid technical evaluation (approximately 2-3 hours). Approved evaluations will receive a $150 payment.
  • To begin onboarding and access project tasks, candidates must have an active Upwork contract with the client.
  • Due to the high volume of applicants, the client may not be able to respond to individual inquiries.

Apply