Software Engineer, AI (Java)

Who you are

You have 3+ years of professional software engineering experience in Java — your strong command of the language allows you to write and evaluate production-grade code effectively. You possess strong code-review instincts, enabling you to quickly spot logic errors, performance traps, and security issues. Your extreme attention to detail and excellent written communication skills are essential, as much of this role involves explaining why one approach is better than another. You enjoy reading documentation and language specs, thriving in an asynchronous, low-oversight environment. While constraint programming experience is a bonus, it is not required for this role. You are eager to learn and adapt, especially in the context of AI and reinforcement learning.

What you'll do

In this role, you will help train large-language models (LLMs) to write production-grade code across a wide range of programming languages. You will compare and rank multiple code snippets, explaining which is best and why. Your responsibilities will include repairing and refactoring AI-generated code for correctness, efficiency, and style. You will inject feedback, such as ratings, edits, and test results, into the reinforcement learning with human feedback (RLHF) pipeline, ensuring it runs smoothly. The end result of your work will be that the model learns to propose, critique, and improve code in a manner similar to how expert engineers would. You will generate code, have expert engineers rank, edit, and justify it, and convert that feedback into reward signals to tune the model toward code that is ready for production.

What we offer

This position is fully remote, allowing you to work from anywhere. Compensation ranges from $30/hr to $70/hr, depending on your location and seniority. You will have the flexibility to work a minimum of 15 hours per week, with the option to increase up to 40 hours per week. This role is structured as a 1099 contract, providing straightforward impact without unnecessary fluff. If this sounds like a fit, we encourage you to apply even if your experience doesn't match every requirement.