AI Infrastructure Engineer (Remote, Contract)

About OpenTrain

OpenTrain is the #1 platform for people building careers in AI training and data labeling. We help contributors discover projects, consolidate work across platforms, and build a unified portfolio they control — making it easier to grow a durable freelance career in the human side of AI.

Why AI training infrastructure matters

AI models learn from human-provided examples and evaluation data, so reliable infrastructure and networks are essential to keep data pipelines, annotation systems, and model-feedback loops running smoothly.

This role supports the systems that make high-quality data collection and evaluation possible — you won't be building model logic, but you will shape how real-world input reaches and improves AI systems.

The role

OpenTrain and our partner OpenTrain are recruiting an AI Infrastructure Engineer to maintain and optimize infrastructure that supports AI training workflows. The role emphasizes system performance, reliability, virtualization, and network operations rather than model development.

This is a contract, part-time position (20+ hours/week), fully remote and open worldwide. Compensation is hourly pay between $30 and $130 USD per hour (client set max $130/hr).

• Employment types: Contractor, Part-time
• Time requirement: 20+ hours/week
• Pay: $30–$130 USD per hour (hourly)
• Languages: English required
• Work location: Fully remote, worldwide

What you'll do

You will keep core infrastructure healthy and efficient so annotation, evaluation, and data-collection systems run without interruption. Expect hands-on troubleshooting, deployments, and continuous monitoring.

• Maintain and optimize infrastructure for system performance and reliability.
• Support network operations and proactively resolve connectivity or routing issues.
• Implement new systems and enhancements following modern best practices.
• Collaborate with project teams on deployments, upgrades, and incident response.
• Document processes, configurations, and changes clearly for remote teams.
• Integrate and support virtualization technologies across environments.
• Monitor system health and recommend improvements to reduce downtime.

Requirements

Candidates must be able to manage complex infrastructure and communicate clearly in a remote environment. Preserve every required skill from the job description when applying.

• Expertise in network administration and infrastructure management.
• Strong experience with virtualization technologies and platforms.
• Proven ability to troubleshoot and resolve complex infrastructure issues.
• Proficiency with written and verbal communication in remote collaboration.
• Solid understanding of system security best practices and strategies.
• Experience with system monitoring and performance optimization.
• Ability to document technical processes clearly and thoroughly.

Helpful background

These qualifications are useful but not strictly required. They indicate the environments and tools you may encounter on the role.

• Hands-on experience with VMware solutions.
• Previous work supporting distributed or remote teams.
• Experience in growing or innovative organizations that require adaptable infrastructure support.

Project details and scope

This role supports AI training workflows that involve document data and tasks such as evaluation rating and data collection. The labeling or annotation software used for the supported projects is listed as 'OTHER' by our partner; you will work with the tools chosen by project teams.

• Data type: Document
• Labeling tasks: Evaluation rating and data collection
• / project-specific

How it works / How to apply

Apply through the OpenTrain platform to join OpenTrain's contract team and be considered for this opening. Include details about your networking and virtualization experience, availability (hours/week), and examples of past infrastructure projects or incidents you resolved.

• Prepare a brief summary of relevant experience and preferred hourly rate within the listed range.
• Note that this is a remote, worldwide role conducted in English.
• OpenTrain helps you track applications and build a profile that grows your AI training career over time.