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OpenTrain AIFor AI Companies

Backend Engineer for AI Systems and Software Evaluation

Use your backend engineering expertise to build, debug, and evaluate software environments for next-generation AI systems. This remote contract pays $65–$120 per hour and requires no prior AI experience.

OpenTrain AI

Coding & Software

100% Remote Hourly · $65–$120/hr

$65–$120/hr

Compensation

Worldwide

Eligibility

Intermediate

Experience

Aug 14, 2026

Posted

Open worldwide

Interested in this role?

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About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role and the #1 platform for finding and building careers in AI training and data labeling. We connect skilled professionals with opportunities to help shape how modern AI systems are built.

  • Remote contract opportunity
  • Expected project duration: 3 to 6 months
  • Worldwide opportunity

About AI Training and Software Evaluation

AI training is the human side of building artificial intelligence. Engineers, reviewers, and other specialists create examples, test systems, and evaluate model performance so AI can become more capable and reliable.

In this project, your backend expertise will help create realistic development environments and challenging tasks that test AI models on backend software engineering problems.

  • Work on cutting-edge AI systems
  • Apply practical engineering judgment to model evaluation
  • No previous AI experience is required

The Backend Engineer Role

We are looking for an experienced Backend Engineer to contribute to a project focused on training and evaluating next-generation AI systems. You will create, debug, and assess real-world software environments that challenge AI models with backend development tasks.

This is an intermediate-level contract role for someone who enjoys solving complex problems, working in unfamiliar codebases, and communicating technical reasoning clearly.

  • Compensation: $65–$120 per hour
  • Typical rate shown: $92.50 per hour
  • Contract position
  • Fluent English proficiency required
  • AI experience is not required

What You'll Do

You will combine hands-on backend development with code review and AI evaluation. Your work will include building reliable technical environments, creating reference solutions, and assessing whether software submissions are correct, clear, and high quality.

  • Build reinforcement learning environments for backend software engineering tasks
  • Create APIs, database logic, and backend features
  • Debug backend bugs, data-handling issues, and performance bottlenecks
  • Optimize existing backend code and database queries
  • Work with Python, Java, Go, Rust, C++, or TypeScript
  • Create reproducible development environments and reference solutions
  • Document technical reasoning and development decisions
  • Review code and technical submissions for correctness, quality, and clarity

Requirements

You should have at least one year of hands-on backend development experience and strong practical knowledge of at least one supported programming language. Success in this role also requires careful debugging, strong technical communication, and comfort navigating unfamiliar systems.

  • 1+ year of hands-on backend development experience
  • Strong experience with Python 3, Java, Go, Rust, C++, or TypeScript
  • Solid understanding of API design
  • Experience with SQL or NoSQL databases
  • Understanding of data structures and backend development
  • Strong debugging and root-cause analysis skills
  • Ability to work comfortably with unfamiliar codebases
  • Strong technical communication and documentation skills

Who Should Apply

This opportunity is a strong fit for backend engineers who enjoy building reliable software, investigating difficult bugs, and evaluating technical solutions. An interest in AI and emerging technologies is welcome, but your engineering ability is the primary qualification.

  • Backend engineers with intermediate-level experience
  • Developers who enjoy APIs, databases, debugging, and performance work
  • Engineers who can explain technical decisions clearly
  • Professionals interested in applying software skills to AI development

How It Works

As an OpenTrain AI contractor, you will contribute remotely to a defined project expected to run for 3 to 6 months. The work centers on backend software engineering, code evaluation, and the development of environments used to test AI systems.

  • Work remotely from anywhere worldwide
  • Contribute as a contractor
  • Use your existing backend engineering expertise
  • Help improve the quality and capabilities of next-generation AI systems

Ready to apply?

Create a free OpenTrain account and apply for this role in minutes.

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