LLM Java Developer
Turing • Remote, United States, France
Education
Bachelor's
Type
Hourly
Listed
186d ago
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- Weekly hours
- 40 hrs/week
- Timezone overlap
- Partial overlap with US Pacific time required
About this role
From the Turing listing
About Turing
Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems. Turing helps customers in two ways: Working with the world’s leading AI labs to advance frontier model capabilities in thinking, reasoning, coding, agentic behavior, multimodality, multilinguality, STEM and frontier knowledge; and leveraging that work to build real-world AI systems that solve mission-critical priorities for companies.Role Overview:We are actively seeking talented developers proficient Java Engineer. The engineer will be working together on the definition, design, and delivery of new features with cross-functional teams. The company is developing the next generation of dialog agents, which will have a wide range of uses in areas including education, entertainment, and general question-answering. This is an exciting opportunity for candidates who are keen to learn in a fast-paced setting. What does day-to-day look like:
- Design, develop, and maintain efficient, high-quality code to train and optimize AI models.
- Conduct evaluations (Evals) to benchmark model performance and analyze results for continuous improvement.
- Evaluate and rank AI model responses to user queries across diverse domains, ensuring alignment with predefined criteria.
- Develop comprehensive explanations and rationales for evaluations, showcasing excellent reasoning and technical expertise.
- Lead efforts in Supervised Fine-Tuning (SFT), including creating and maintaining high-quality, task-specific datasets.
- Collaborate with researchers and annotators to execute Reinforcement Learning with Human Feedback (RLHF) and refine reward models.
- Design innovative evaluation strategies and processes to improve the model's alignment with user needs and ethical guidelines.
- Create and refine optimal responses to improve AI performance, emphasizing clarity, relevance, and technical accuracy.
- Conduct thorough peer reviews of code and documentation, providing constructive feedback and identifying areas for improvement.
- Collaborate with cross-functional teams to improve model performance and contribute to product enhancements.
- Continuously explore and integrate new tools, techniques, and methodologies to enhance AI training processes.Required Skills:
- Train LLM models with high-quality, stable, and scalable back-end components using the newest coding best practices in a variety of languages and frameworks.
- Participate in code reviews to ensure that the standards for code quality are met
- Demonstrate your proficiency with your language of choice, while covering all bases
- Provide clear, clean, well-organized, correct, and clearly annotated/classifiable code in the responses
- Bachelor’s/Master’s degree in Engineering, Computer Science (or equivalent experience)
- Demonstrable experience with developing web apps using modular development and scalable architectures as well as a strong focus on code readability and security/stability (i.e. testing)
- Proficiency with Java's syntax and conventions
- Nice to have some prior software Quality Assurance and Test Planning experience
- Excellent spoken and written English communication skills
Perks of Freelancing With Turing
- Work in a fully remote environment.
- Opportunity to work on cutting-edge AI projects with leading LLM companies.
Offer Details
- Commitments Required: at least 4 hours per day and minimum 20 hours per week with overlap of 4 hours with PST. (We have 3 options of time commitment: 20 hrs/week, 30 hrs/week or 40 hrs/week)
- Engagement type : Contractor assignment (no medical/paid leave)
- Duration of contract : 1 month; [expected start date is next week]
Evaluation Process (approximately 75 mins)
- Two rounds of interviews (60 min technical + 15 min cultural &, offer discussion)
Requirements
- Critical Thinking
- Business Analysis
- Must be eligible to work in one of: Remote, United States
How long hiring takes
Across the AI training platforms we refer candidates to, the median gap between referral and hire is about 30 days. It varies by platform and role, so treat it as a rough guide for this one.
Interview Prep
Sample questions for a Java Developer role, written in-house to help you prepare.
When would you choose composition over inheritance in a Java class design?
I favor composition when the relationship between classes is more about behavior reuse than a true is-a relationship, since inheritance creates tight coupling that makes future changes harder. Composition also avoids the fragile base class problem where a change in a parent class unexpectedly breaks subclasses.
How do you decide between using synchronized blocks and higher-level concurrency utilities like ExecutorService or java.util.concurrent classes?
I use synchronized blocks for simple, low-contention critical sections, but I move to java.util.concurrent utilities like ConcurrentHashMap or ExecutorService for anything involving thread pools or higher contention, since they're better tested and typically more performant than hand-rolled synchronization.
What issues can arise from using Java streams for a task that would be simpler with a traditional loop, and how do you decide which to use?
Streams can hurt readability and debuggability for complex logic with side effects or multiple exit conditions, where a traditional loop is clearer. I use streams for straightforward transformation and filtering pipelines, and fall back to loops when the logic involves complex branching or needs to break early.
How do you diagnose a deadlock in a multithreaded Java application?
I take a thread dump during the hang and look for threads blocked waiting on locks held by each other, which Java's thread dump tool usually flags directly as a detected deadlock. Once identified, I trace back to the lock acquisition order in the code to find where it diverges between threads.
This listing calls for this tool directly. Prep for the technical screen:
What to Expect
Looking at Turing Software Engineering listings we've tracked, contracts in this domain typically run about 8.4 weeks. Actual length varies by project, but this gives you a realistic baseline going in.
Based on 28 extracted Turing Software Engineering listings.
Why this role
This LLM Java Developer role covers building and evaluating Java coding tasks used to train and test AI models on object-oriented design and Java-specific reasoning problems. The review work depends on knowing Java's type system and common design patterns well enough to catch subtle mistakes in generated code.
Skills and categories
Explore other opportunities in related specializations:
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Common questions
How and when does Turing pay contractors?
Monthly, in USD, via Deel, Payoneer, or direct bank transfer. You're engaged as an independent contractor responsible for your own local taxes. Plan your cash flow around a monthly cycle if you're used to weekly payouts elsewhere.
Do I need to be a software engineer to work for Turing?
No, not anymore. Turing built its name matching senior engineers with Silicon Valley companies, but it has since expanded into AGI infrastructure work and now hires non-engineering domain experts, technical writers, and researchers for post-training data annotation and RLHF. A strong analytical background and excellent English matter more than coding ability.
What does task-based AI training work look like?
Practical, hands-on data work: recording short videos, categorizing images, rating text responses, or analyzing data. Tasks are designed to be short and distinct, typically 5 to 60 minutes each.
What does asynchronous AI training work mean in practice?
No set hours, no check-ins, no meetings. You log in when you want, pick up an available task, complete it, and submit; nobody is waiting on you in real time. That's different from remote employment, where you're expected online during business hours. The tradeoff: you're competing with others for available tasks, so an empty queue means there's simply nothing to do until more work is released.
What does Software Engineering work look like for a LLM Java Developer?
Tasks here are scoped to Software Engineering, not generic labeling. As a LLM Java Developer, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to Software Engineering) rather than following a one-size-fits-all rubric. If you don't have hands-on Software Engineering background, this is likely not the right listing to start with.
What specific skills does this listing call for?
Critical Thinking, Business Analysis, Coding, and Java are named directly in the listing. If you don't have hands-on experience with these, expect the screening process to test for them directly rather than accepting adjacent experience as a substitute.
How many hours per week does this role require?
Based on the listing, this role is scoped at about 40 hours per week. Treat this as a real commitment expectation, not a loose estimate.
How much does this specific role pay?
The listing doesn't state a rate. The $25–$55/hr shown here is our estimate from the role type and location (see /pay-methodology), so treat it as a rough guide and confirm the actual rate with the platform before committing time.
What happens when I click Apply on this listing?
You'll be taken to Turing's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.
Can I apply from outside the United States or France?
This specific role is open only to people based in the United States and France. If you are somewhere else, applying is unlikely to lead to an offer even if you pass the assessment, because the restriction is usually about where the work can legally be contracted rather than your skills. Read the full description for any tax-residency or right-to-work caveats before you apply, since they can differ by country.