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Freelance Software Developer (Java) - Quality Assurance (AI Trainer)Mindrift • New Bremen, Ohio, United States
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Freelance Software Developer (Java) - Quality Assurance (AI Trainer)

Mindrift
  • US
    New Bremen, Ohio, United States
  • US
    New Bremen, Ohio, United States
Apply Now

About

Freelance Software Developer (Java) - Quality Assurance (AI Trainer) 3 days ago Be among the first 25 applicants
THIS opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency.
At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.
What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real‑world expertise from across the globe.
About The Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects.
Typical Responsibilities
Code generation and code review
Prompt evaluation and complex data annotation
Training and evaluation of large language models
Benchmarking and agent‑based code execution in sandboxed environments
Working across multiple programming languages
Adapting guidelines for new domains and use cases
Following project‑specific rubrics and requirements
Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects
Note: Flexibility and quick adaptation to new requirements are essential.
How To Get Started Simply apply to this post, qualify, and get the chance to contribute to projects that match your technical skills, on your own schedule. From coding and automation to fine‑tuning AI outputs, you'll play a key role in advancing AI capabilities and real‑world applications.
Requirements
You hold a Bachelor's or Master's Degree in Computer Science, Software Engineering, Software Development, Computer Engineering, Mobile App Development, Cloud Computing, Data Science, Big Data or other related fields
You have at least 3 years of professional experience in Java 17+, including streams API and concurrent programming
Your level of English is advanced (C1) or above
Hands‑on experience with JUnit 5, TestNG, Mockito, and TestContainers
Proficiency with build tools (Maven, Gradle), IDEs (IntelliJ IDEA), and CI/CD pipelines (Jenkins, GitHub Actions, GitLab CI)
Experience with the Spring ecosystem (Spring Boot, Spring Data, Spring Security), JPA/Hibernate
Strong understanding of JVM internals, garbage collection, performance optimization, and design patterns
Experience with messaging systems (Kafka, RabbitMQ) and microservices architectures
Practical use of AI‑assisted tools for refactoring, performance analysis, and test generation
Familiarity with cloud platforms (AWS, Azure), containers, and Kubernetes
Strong skills in JVM profiling (JProfiler, VisualVM) and debugging
You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines
Our freelance role is fully remote; you just need a laptop, internet connection, time available and enthusiasm to take on a challenge
Benefits
Get paid for your expertise, with rates that can go up to $50/hour depending on your skills, experience, and project needs
Take part in a part‑time, remote, freelance project that fits around your primary professional or academic commitments
Work on advanced AI projects and gain valuable experience that enhances your portfolio
Influence how future AI models understand and communicate in your field of expertise
Seniority Level Mid‑Senior level
Employment Type Part‑time
Job Function Other
Industries IT Services and IT Consulting
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  • New Bremen, Ohio, United States

Languages

  • English
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