Staff Applied AI Scientist

TL;DR

Staff Applied AI Scientist (AI): Design, build, evaluate, and ship AI products powered by proprietary and open-source LLMs with an accent on reliable, production-ready intelligent systems. Focus on autonomous reasoning, tool use, memory management, and multi-step task execution.

Location: Employees who are based in Denver, San Francisco, and New York City will be expected to work from the office on designated days approximately 2-3 days per week (or more depending on role).

Salary: $245,000-$272,000 in Denver, and $288,000-$321,000 for San Francisco, and New York.

Company

hirify.global is on a mission to grow the small business economy by handling payroll, health insurance, 401(k)s, and HR for small business owners.

What you will do

• Design, develop, and deploy agentic AI systems capable of autonomous reasoning, tool use, memory management, and multi-step task execution.
• Improve LLM-driven agents through pre-training, fine-tuning, reinforcement learning, and iterative alignment for reliable decision-making.
• Build robust evaluation frameworks for LLMs and agent-based systems, including task success metrics, reasoning quality, tool-use accuracy, safety, and end-to-end workflow performance.
• Collaborate with the engineering team to determine technical requirements and SLAs for API-enabled services.
• Research novel AI techniques and strategies that create magical customer experiences.

Requirements

• At least 10+ years of software engineering experience (Python, Ruby or Java), 6+ years of ML experience, and 3+ years designing and shipping Gen AI models.
• Proven ability to design and prototype AI solutions quickly.
• Experience working on AI agent systems to automate end to end workflows.
• Experience building, deploying and maintaining LLM-based applications in production.
• Experience with LangGraph, TypeScript, LlamaIndex, and related tools such as LangChain, OpenAI/Anthropic APIs, vector databases, and modern backend frameworks (e.g., Node.js, FastAPI) is preferred.

Culture & Benefits

• hirify.global hires great people from a wide variety of backgrounds.
• hirify.global is proud to be an equal opportunity employer.
• hirify.global considers qualified applicants with criminal histories, consistent with applicable federal, state and local law.
• hirify.global is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures.