Senior ML Engineer, Agentic AI

Ellipsis Health; San Francisco (CA); On-site; USD 160,000 - 210,000; Full time

Benefits offered by this job

401(k) matching

Health insurance

Vision and dental insurance

Flexible paid time off

Job summary

Ellipsis Health is seeking a core contributor and technical leader for its AI Research & Engineering team in Silicon Valley. You will drive the conceptualization, architecture, and deployment of frontier agentic systems, collaborating with core infrastructure and platform teams to translate breakthroughs in LLMs into practical clinical applications.

Responsibilities include leading multi-step reasoning architectures, post-training fine-tuning, and automated prompt optimization, while mentoring

Qualifications

• 5+ years of software development focusing on product design and scalable platforms.
• Strong Python expertise with distributed ML or DL frameworks.
• Proven track record deploying LLM-powered or multi-agent systems in production.

Responsibilities

• Technical Leadership & Vision: act as the technical authority for the Agentic AI roadmap from prototyping to production.
• Advanced Agentic Architecture: design and optimize scalable systems and orchestration pipelines for deep reasoning and tool use.
• Research-to-Production Translation: bridge frontier ML research to enterprise software design and deployment.
• Rigorous Evaluation & Benchmarking: build evaluation frameworks and continuous testing infra with rigorous metrics.
• Data Mix Optimization: develop data curation pipelines to create high-quality training datasets.
• Cross-Functional & Clinical Collaboration: work with clinicians, product managers, and engineers to ensure safe AI platforms.

Skills

Python programming

Distributed ML

LLM applications

Multi-agent systems

Technical leadership

Education

Bachelor’s degree in Computer Science or related

Master’s or PhD in CS/AI

Tools

PyTorch

JAX

TensorFlow

Job description

Ellipsis Health is creating cutting-edge AI/ML products that solve healthcare staffing challenges and administrative burdens using conversational AI and our patented voice biomarker technology—helping deliver better healthcare for everyone. We are headquartered in Silicon Valley and are funded and supported by some of the most preeminent venture capital teams.

In this role, you will be a core contributor and technical leader within our AI Research & Engineering team. Operating at the sweet spot between cutting‑edge scientific research and production‑grade systems, you will drive the conceptualization, architecture, and deployment of frontier agentic systems. You will collaborate directly with core infrastructure and platform teams to translate algorithmic breakthroughs in LLMs and agentic AI into robust, secure, and low‑latency clinical applications.

Responsibilities

• Technical Leadership & Vision: Act as the technical authority for the Agentic AI roadmap, steering engineering pods from initial research prototyping through to production scale.
• Advanced Agentic Architecture: Design, build, and optimize scalable systems and orchestration pipelines capable of deep multi-step reasoning, dynamic memory allocation, long-context evaluation, and high-fidelity tool utilization.
• Research-to-Production Translation: Bridge the gap between frontier machine learning research and enterprise software design. Implement and adapt state-of-the-art techniques in post-training fine-tuning, preference alignment, and automated prompt optimization.
• Rigorous Evaluation & Benchmarking: Architect and maintain multi-dimensional quantitative evaluation frameworks and continuous testing infrastructure. Implement state-of-the-art LLM-as-a-judge rubrics, and statistical tracking to evaluate agent capabilities and guarantee zero-regression product updates.
• Data Mix Optimization: Develop and scale automated data curation pipelines to extract, filter, and structure user feedback signals, execution logs, and expert labels into ultra-high-quality training datasets for model fine-tuning.
• Cross-Functional & Clinical Collaboration: Work closely within a highly matrixed, collaborative organization alongside clinical experts, product managers, and software engineers to ensure AI platforms operate safely and ground outputs in validated healthcare protocols.
• Mentorship & Engineering Excellence: Foster a culture of technical rigor by setting high coding standards, leading design reviews, standardizing tooling, and mentoring other ML and software engineers across the team.

Minimum Qualifications

• Bachelor’s degree in Computer Science, Machine Learning, Statistics, Engineering, or equivalent practical experience.
• 5+ years of practical software development experience with a heavy emphasis on product design, core system architecture, and shipping scalable software platforms (or 2+ years of post-PhD industry experience in a dedicated AI research/engineering role).
• Advanced programming proficiency in Python and deep hands‑on expertise with distributed machine learning or deep learning frameworks (e.g., PyTorch, JAX, or TensorFlow).
• Proven track record of architecting, implementing, and deploying complex LLM-powered applications, multi‑agent orchestrations, or autonomous systems in a production environment.

Preferred Qualifications

• Master’s degree or PhD in Computer Science, Artificial Intelligence, Machine Learning, or a related quantitative technical field.
• 8+ years of industry experience specializing in advanced data structures, algorithms, distributed systems, and heavy-duty scalable ML infrastructure.
• 3+ years of technical leadership experience, including leading complex technical project workstreams, defining organizational engineering directions, or directly mentoring technical talent.
• Experience working within complex, highly collaborative matrixed organizations on high‑acuity, deeply regulated technical integrations (e.g., healthcare, fintech, or aerospace).
• Research Excellence: A solid track record of contributions or publications at top-tier machine learning venues (e.g., NeurIPS, ICML, KDD) with a specific focus on agentic frameworks, reinforcement learning, or data benchmark.

Salary And Benefits

We offer competitive salary and benefits, including 401(k) matching, health, vision, and dental insurance, and very flexible paid time off.

The typical salary range for this role is $160,000 to $210,000 USD, depending on skills, qualifications, and relevant experience.

Background Checks

As a health technology company, we reserve the right to run background checks on candidates to whom we extend offers, in compliance with applicable laws. We evaluate candidates holistically and comply with all “ban the box” regulations.

Assistance

If you have a disability or require accommodations during the application or recruitment process, please contact [e-mail].