Member of Technical Staff - Agent Engineer (AI)

Location: South San Francisco, United States; on-site

Salary: $200,000–$300,000 per year plus equity

Company

hirify.global is an applied research lab building agentic intelligence to accelerate biomedical discovery.

What you will do

• Advance the agent harness by productionizing research and open-source developments in multi-agent coordination, model routing, memory, planning, and tool use.
• Build evaluations that measure agent quality, reliability, latency, and cost on representative scientific tasks.
• Monitor production agent quality, troubleshoot failures, and translate findings into engineering improvements.
• Collaborate on infrastructure for long-running sessions, sandboxed execution, background work, and subagents.
• Partner with scientists and engineers to evaluate and productionize new agent capabilities.

Requirements

• Strong software engineering experience with production backend systems, infrastructure, or distributed systems.
• Research or production experience in machine learning or another quantitative discipline.
• Familiarity with LLM APIs, tool calling, agent runtimes, or workflow orchestration.
• Strong quantitative judgment and the ability to assess whether improvements are real, reproducible, and meaningful.
• Ability to move between research questions, data analysis, system design, and production implementation.
• Experience or strong interest in AI for science, scientific agents, computational research, or automated scientific discovery.

Nice to have

• Experience with LLM evaluations, human evaluation, model judges, replay testing, benchmark design, or experiment tracking.
• Experience applying classical machine learning methods alongside LLMs in production systems.
• Experience with task queues, event streams, Kubernetes, code sandboxes, or durable workflow systems.
• Advanced degree or equivalent experience in machine learning, computational biology, physics, applied mathematics, statistics, or a related field.

Culture & Benefits

• Equity participation in building biomedical discovery technology.
• Full medical, dental, and vision coverage, including therapy sessions and an eyewear stipend.
• 401(k) and unlimited PTO for US employees.
• Lunch and snacks in the office, regular team offsites, and company events.
• Fast-paced culture focused on excellence, speed, and collaboration.