Open Source Software Engineer for AI Training

OpenTrain AI, Inc.; United States; Remote; USD 69,000 - 138,000; Part time

Job summary

OpenTrain AI is recruiting remote software engineers to support AI training through high‑quality contributions to established open source codebases. You will develop and refine features, resolve complex bugs, improve legacy code, validate implementation quality, and explain technical decisions clearly.

The listing is entry level, yet the role requires expert proficiency in at least two languages and substantial open source development experience.

Qualifications

• Advanced programming ability and experience with established codebases
• Extensive open source development experience
• Ability to analyze complex coding problems and develop efficient solutions
• Ability to apply competitive programming and algorithmic techniques
• Strong judgment validating code accuracy, output consistency, maintainability, and performance
• Careful attention to code quality and engineering standards
• Ability to write precise technical documentation and collaborate on proposed changes
• Clear written and verbal communication
• Comfort working independently and remotely while following project standards and deadlines
• Competitive programming experience and well-documented code history helpful

Responsibilities

• Develop, implement, and refine features in established open source codebases
• Diagnose and resolve complex software bugs
• Refactor and optimize legacy code for performance, readability, and scalability
• Validate code for accuracy, output consistency, maintainability, and sound engineering practices
• Apply algorithms and competitive programming techniques to intricate coding problems
• Review proposed changes and contribute to implementation decisions
• Maintain project documentation and write concise technical design explanations

Skills

Python

C++

Java

Rust

TypeScript

Go

C#

Job description

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this remote opportunity. OpenTrain is the #1 platform for finding and building careers in AI training and data labeling, helping contributors discover projects, build a professional profile, and apply in minutes.

Creating an OpenTrain account is free. Your profile can help showcase credible technical experience and support a long-term career in the growing AI training industry.

• Remote contractor opportunity
• Part-time engagement with a 20+ hour weekly requirement
• Apply and manage your opportunity through OpenTrain

About AI Training Through Software Development

AI training is the human side of building artificial intelligence. Alongside language, image, audio, and search projects, AI systems depend on skilled contributors who write, review, evaluate, and improve code used to develop better models and software tools.

This role combines practical open source engineering with careful evaluation of implementation quality. Your work can help assess the correctness, efficiency, maintainability, and clarity of code used in AI training workflows.

• Contribute to cutting-edge AI development through software engineering
• Work remotely with flexible task-based scheduling
• Use specialized coding expertise in a fast-growing technology field

The Role

OpenTrain is recruiting software engineers to support AI training through high-quality contributions to established open source codebases. You will develop and refine features, resolve complex bugs, improve legacy code, validate implementation quality, and explain technical decisions clearly.

The listing is marked as entry level, while the role requires expert-level proficiency in at least two relevant programming languages and substantial open source development experience.

• Subject matter: Open source software development
• Languages used: English
• Experience level listed: Entry level
• Minimum time requirement: 20+ hours per week

What You’ll Do

You will work on existing projects where implementation quality, compatibility, and maintainability matter. Assignments may involve both hands-on development and evaluation of proposed or completed code changes.

• Develop, implement, and refine features in established open source codebases
• Diagnose and resolve complex software bugs
• Refactor and optimize legacy code for performance, readability, and scalability
• Validate code for accuracy, output consistency, maintainability, and sound engineering practices
• Apply algorithms and competitive programming techniques to intricate coding problems
• Review proposed changes and contribute to implementation decisions
• Maintain project documentation and write concise technical design explanations

Required Skills and Background

You should bring advanced programming ability, strong analytical judgment, and experience working with established codebases. The role values engineers who can make efficient technical decisions while preserving clarity, reliability, and long-term maintainability.

• Expert-level proficiency in at least two of Python, C++, Java, Rust, TypeScript, Go, or C#
• Extensive experience developing features, fixing bugs, or refactoring existing open source codebases
• Ability to analyze complex coding problems and develop efficient solutions
• Ability to apply competitive programming and algorithmic techniques
• Strong judgment when validating code accuracy, output consistency, maintainability, and performance
• Careful attention to code quality and engineering standards
• Ability to write precise technical documentation and collaborate on proposed code changes
• Clear written and verbal communication
• Comfort working independently and collaborating remotely while following project standards and deadlines
• Competitive programming experience and a history of well-documented code are helpful

Compensation and Schedule

This is a remote, part-time contractor opportunity. The listed compensation range is $50 to $100 per hour. The source role also describes compensation as output-based for tasks that meet project specifications, so the time required may vary by assignment and workflow.

The role includes a minimum weekly task expectation of 20+ hours. Workload and task duration may vary depending on the project.

• Compensation range: $50 to $100 per hour
• Employment type: Contractor and part time
• Minimum weekly commitment: 20+ hours
• Remote work across the countries listed for this opportunity