Builds state-of-the-art document processing infrastructure using LLMs, including QA agents, optimizers, multimodal models, and self-correcting systems. Monitors production models, runs experiments, and owns large product areas for real-world customer impact.
200k – 350k/yr
On-siteML Engineering
About the role
Responsibilities
Design novel LLM techniques for increasing the complexity of use cases and data streams that Extend can be applied to.
Monitor existing models in production, understand what’s working well (and what isn’t), and run experiments to solve those issues.
Build a QA Agent to flag low confidence results.
Deploy an optimizer agent in a loop that improves document performance in the background.
Create multimodal models for document layout awareness.
Develop novel chunking strategies for handling long documents.
Build data pipelines and evaluate model performance.
Build a self-correcting system that automatically gets better over time.
Have complete ownership over the work you do and direct relationship with customers.
Benefits
90% health insurance premium coverage.
Relocation for candidates based outside of NYC.
Unlimited PTO policy.
Daily lunch & snacks covered (plus dinner if late).
Research Engineer building self-improving AI agent systems at Console. Develop eval/optimization loops, fine-tune specialist models, and improve agent reasoning over enterprise context using production data to drive measurable gains in quality, latency, and reliability.
200k – 350k/yr
On-siteML Engineering
Machine Learning Engineer
KeplerNew York, NY
Build and own ML models, fine-tuning, evaluation harnesses, and routing for Kepler's AI agent harness in finance. Requires 5+ years production software experience and shipped ML systems focused on correctness, evals, and real-world reliability.
200k – 280k/yr
On-site5+ YOEML Engineering
Machine Learning Engineer
AfterQuerySan Francisco, CA
Build production ML systems for measuring, predicting, and scaling data quality for frontier AI models. Requires 3-6 years experience in applied ML or related production systems (ranking, recommendations, data quality, fraud) plus strong software engineering skills.
200k – 300k/yr
On-site3+ YOEML Engineering
Machine-Learning Operations Engineer
TennrNew York, NY
Founding ML Operations Engineer building scalable training, inference, and evaluation pipelines for proprietary VLMs and LLMs in healthcare. Requires 5+ years production ML infrastructure experience, strong Python/TypeScript skills, and ownership in a fast-paced startup.
200k – 230k/yr
On-site5+ YOEML Engineering
Machine Learning Engineer, Enterprise Brain
GleanMountain View, CA
Machine Learning Engineer building the Enterprise Brain - a proactive AI system for task detection, automation, reasoning, planning and personalization using LLMs, RL, fine-tuning, and advanced ranking on top of enterprise and personal knowledge graphs. Requires 3+ years ML experience, strong production ML skills, and expertise in evaluation/benchmarking.