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About the Role
As a Research Engineer, you will be responsible for building industry-leading healthcare AI models and model pipelines that power Assort’s voice agents and overall patient platform, taking them from idea to production. You will own large initiatives that push the boundary of what models and agents can accomplish in the healthcare space while maintaining high levels of reliability, efficiency, and precision.
Responsibilities
- Lead research and engineering efforts to improve core conversational capabilities in production, including instruction following, tool calling, retrieval, and memory
- Investigate research questions in speech and audio, and design experiments to test hypotheses about model behavior and capabilities
- Build and iterate on end-to-end models and pipelines that optimize for quality, efficiency, and user experience
- Identify opportunities for model-task optimization to ensure the right model architectures are used for different tasks based on performance, latency, and cost
- Partner with platform and product engineers to integrate new models into production systems
- Break down ambiguous research ideas into clear, iterative milestones and roadmaps
- Train, fine-tune, validate, and further develop models built in-house at Hume and models developed by our customers
- Design evaluation protocols and benchmarks that measure model quality, generalization, robustness, and progress against research objectives
- Analyze datasets, model outputs, and failure cases; compare training approaches and use the evidence to guide the next round of model development
Requirements
- 5+ years of experience with a minimum of 3+ in AI/ML engineering or research
- Prior experience post-training and deploying LLMs in production environments
- Fluency in Python and modern ML tooling (training, evaluation, inference, data pipelines)
- Track record of taking research ideas from prototype → reliable, measurable production impact
- Strong experimental judgment: formulating hypotheses, establishing useful baselines, designing evaluations, and interpreting results carefully
- (Bonus) Prior experience utilizing and improving speech-to-text (STT), text-to-speech (TTS) models, and/or duplex models
- A PhD is not required. We value demonstrated research ability and the quality of the models, experiments, and systems you have helped build.
Skills
- AI/ML engineering
- Python
- Modern ML tooling
- Speech-to-text (STT)
- Text-to-speech (TTS)
- Duplex models
Experience Level
- 5+ years of experience
- 3+ years in AI/ML engineering or research
Benefits
- Competitive Compensation – Including salary and employee stock options
- Lifelong Learning – Annual budget for professional development, plus training opportunities
- Office Setup Stipend
- Top-Tier Health Coverage – Medical, dental, and vision insurance
- Flexible PTO
- Meals & Snacks
- Fitness Stipend
- Commuter Benefits
- 401(k)
About the Company
- Building Healthcare That Remembers
- Assort Health is building one continuous conversation for every patient. An AI agent that knows who you are, remembers how you like to be reached, and carries that context from your first symptom to your full recovery.
- We went from 15 people in 2025 and will cross 250 by the end of 2026. Revenue is up 20x in 15 months and we've raised $222 million, including a recent $120 million Series C at a $1.2 billion valuation.
- We've also been named to the Forbes Cloud 100 and the 2026 Enterprise Tech 30 as the only healthcare AI company on the list!
- Healthcare spends $1.1 trillion a year on administration instead of care.
- Our team at Assort Health moves fast, stays focused, and is fueled by a desire to serve our customers and patients.
- Our company values guide how we work—they are present in how we show up, make decisions and work together to move our mission forward. We bring a Day One Drive, relentlessly striving to improve, keep a 5-Star Focus, as our customers are our lifeblood, always Answer the Call, remembering that ownership and accountability are paramount, and show up with One Pulse, because we are one team, with one rhythm and one result.
- Our team is growing and we are looking for motivated, hardworking, and passionate talent.
- If you want to make healthcare accessible for everyone, we’d love to hear from you!
- Please note: the Assort Health Talent Team will only email you from an assorthealth.com email address.