Java Engineer

About the Role

As a Senior Java Engineer, you will work remotely on an hourly paid basis to review AI-generated Java code, architectural solutions, and technical explanations, as well as generate high-quality reference implementations and reasoning steps. This fully remote, hourly paid contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs.

Important

There is no immediate project for this role; however, if qualified, you will be among the first experts we reach out to when relevant opportunities arise and will gain access to future projects through our expert network.

Responsibilities

• Review AI-generated Java code, architectures, and technical explanations for accuracy, clarity, and adherence to prompts.
• Identify errors in logic, performance, or design and fact-check technical information.
• Write high-quality explanations and model solutions that demonstrate correct methods and reasoning steps.
• Generate reference implementations and assess and rank multiple AI responses based on correctness and reasoning quality.
• Create detailed prompts and responses to guide AI learning and test models for inaccuracies or biases.

Qualifications

• Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field.
• 5+ years of professional software engineering experience with significant hands-on work in Java on production systems.
• Deep understanding of core Java, concurrency primitives, and the Java Collections Framework.
• Extensive experience building and maintaining backend services using Spring or Spring Boot, REST APIs, and microservice architectures.
• Strong grasp of software design principles, system design, and performance optimization in distributed Java systems.
• Minimum C1 English proficiency (written and spoken) with ability to write clear technical explanations and follow detailed English-language guidelines.
• Comfortable with Git, CI/CD pipelines, automated testing frameworks, and containerization technologies.
• Demonstrated experience conducting thorough code reviews and providing structured, constructive feedback.
• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in Java solutions.