Research Engineer (AI)

Location: San Francisco, United States; hybrid work

Salary: $190,000–$240,000 base salary per year, plus equity

Company

hirify.global builds AI-powered voice agents and patient platform technology for healthcare, using proprietary specialty-care data to improve patient access and administrative workflows.

What you will do

• Build healthcare AI models and model pipelines from research concepts through production deployment.
• Improve conversational capabilities including instruction following, tool calling, retrieval, and memory.
• Investigate speech and audio research questions and design experiments to evaluate model behavior.
• Develop end-to-end models and pipelines optimized for quality, efficiency, latency, cost, and user experience.
• Partner with platform and product engineers to integrate models into production systems.
• Design benchmarks, analyze datasets and failure cases, and use evidence to guide model development.

Requirements

• 5+ years of professional experience, including at least 3+ years in AI/ML engineering or research
• Experience post-training and deploying LLMs in production environments.
• Fluency in Python and modern machine learning tooling for training, evaluation, inference, and data pipelines.
• Demonstrated ability to take research ideas from prototype to reliable, measurable production impact.
• Strong experimental judgment, including hypothesis formation, baseline design, evaluation, and careful interpretation of results.
• A PhD is not required; demonstrated research ability and high-quality models, experiments, and systems are valued.

Nice to have

• Experience using and improving speech-to-text, text-to-speech, or duplex models.

Culture & Benefits

• Employee stock options and competitive compensation.
• Annual professional development budget and training opportunities.
• Office setup stipend and meals and snacks.
• Medical, dental, and vision insurance.
• Flexible paid time off and a fitness stipend.
• Commuter benefits and a 401(k) plan.