Java Quality Assurance Lead

About OpenTrain

OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. It helps people discover projects across the industry, build a professional profile, and apply in minutes. Creating an OpenTrain account is free.

About AI Training Work

AI training is the human side of building modern artificial intelligence. Specialists review examples, evaluate model outputs, and provide structured feedback that helps AI systems become more accurate, useful, and reliable. This work is remote and can offer flexible opportunities for people with valuable technical expertise.

• Contribute directly to the development of AI systems
• Use your Java and software quality expertise in a growing field
• Work remotely with flexible part-time scheduling

The Role

OpenTrain is seeking an intermediate Java Quality Assurance Lead to review AI-generated Java code and trainer QA work across Java AI training projects. You will evaluate work against project guidelines, provide precise written feedback, monitor contributor quality, and help maintain standards for correctness, maintainability, security, test coverage, and clear technical explanation.

This contractor role also supports Java-specific review workflows, documentation, onboarding materials, and quality process improvements for remote technical teams. The role is available to candidates in the United States who can communicate clearly in English.

• $70 per hour
• 20+ hours per week
• Part-time contractor position
• Remote work for candidates in the United States
• Intermediate experience level

What You'll Do

You will combine hands-on Java expertise with structured quality evaluation. Your reviews will help identify technical issues, improve contributor consistency, and support high-quality AI training data.

• Review AI-generated Java code, Spring backend snippets, debugging responses, tests, architecture explanations, and step-by-step reasoning.
• Check compile-time validity, runtime behavior, object-oriented design, API usage, debugging accuracy, readability, performance, security, and formatting.
• Spot-check contributor work and escalate recurring issues.
• Help keep review guidelines consistent across Java AI training projects.
• Maintain Java style guides, FAQs, examples, calibration tasks, honeypots, trackers, and onboarding materials.
• Support onboarding, training, and quality communication for remote Java contributors.
• Help improve Java-specific review workflows and quality processes.

Required Qualifications

This role requires strong Java fundamentals and the ability to assess technical work carefully and consistently. Experience in Java development, backend engineering, code review, software QA, or technical mentoring is required.

• Strong knowledge of Java collections, generics, streams, lambdas, exceptions, concurrency, annotations, and JVM behavior.
• Experience reviewing Java code for correctness, readability, maintainability, and security.
• Background in Java development, backend engineering, software QA, code review, or technical mentoring.
• Clear written technical feedback and collaboration in English.
• Familiarity with Spring Boot and Java build tools such as Maven or Gradle.

Preferred Experience

The following experience is preferred or considered a strong plus for this role. It can help you evaluate a broader range of Java responses and contribute effectively to remote technical workflows.

• JUnit and Mockito
• Hibernate or JPA
• REST APIs and JDBC
• GitHub, Docker, and CI/CD
• Logging and profiling tools
• Leading remote technical contributors
• AI training, data annotation, LLM evaluation, or rubric-based code review
• Supporting remote contributor workflows

How to Apply Through OpenTrain

Create a free OpenTrain account to build your AI training profile and apply for this opportunity in minutes. If selected, your Java expertise will support the evaluation and improvement of AI-generated technical work.

• Review the role requirements and confirm your availability for 20+ hours per week.
• Highlight your Java, QA, code review, and technical feedback experience.
• Apply through OpenTrain and continue building your career in AI training.