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AI Developer
Rex.zone
- New York, New York, United States
- New York, New York, United States
Über
About The Role You will design and deliver AI/ML features that connect training data to model behavior in production. You will implement LLM application patterns (RAG, tool use, structured outputs), build evaluation harnesses, and collaborate on feedback loops (including RLHF-style workflows) to improve quality, reliability, and safety.
What You Will Do
Build and maintain AI services (batch and real‑time) and integrate model inference APIs
Develop data pipelines for training and evaluation (versioning, validation, quality checks)
Create automated evaluation for LLMs, prompt quality, and safety regressions using offline metrics and human‑in‑the‑loop review
Support NLP/CV workflows such as classification, summarization, ranking, NER, and content moderation
Document experiments and promote reproducible ML engineering practices
Required Qualifications
Mid‑senior experience building AI/ML‑powered products in production
Strong Python and software engineering fundamentals (APIs, testing, CI/CD, code reviews)
Hands‑on ML/DL knowledge with exposure to LLMs, NLP, or computer vision
Ability to design evaluation plans and use results to drive model improvement
Comfort with data labeling workflows, QA evaluation, and annotation guideline compliance
Preferred Qualifications
Experience with RLHF, preference modeling, prompt iteration, or human feedback loops
Familiarity with MLOps deployment, monitoring, and experiment tracking
Experience with retrieval‑augmented generation, vector search, and embedding pipelines
Background in content safety labeling, red‑teaming, or policy‑aligned evaluation
Compensation Competitive hourly base pay: $30–$50 per hour, depending on experience and scope.
How To Apply Apply via Rex.zone with a resume highlighting shipped AI systems, evaluation results, and any experience with RLHF, labeling workflows, or QA evaluation. Include links to repositories, case studies, or technical write-ups where possible.
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Sprachkenntnisse
- English
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