Senior Agent Harness Engineer

The role

You will own the developer and agent experience by building software and improving the environment in which developers and agents work. This hands-on platform engineering role involves setting roadmaps for coding agents, building cloud coding experiences, and improving agent output through codebase and workflow changes.

What you will do

• Set the roadmap for how engineers and coding agents navigate the codebase and use tools.
• Build the developer-facing layer around existing compute foundations.
• Improve agent output by changing repository structure, interfaces, and documentation.
• Design how agents receive, discover, persist, and discard context.
• Raise the quality of shared skills and instructions through contribution standards.
• Improve CI speed, reliability, local setup, testing, and deployment workflows.
• Measure effectiveness using developer research and DORA or SPACE measures.
• Drive adoption by teaching effective practices and turning experiments into defaults.
• Partner with infrastructure and security engineers on sandboxing and controls.

Required qualifications

• Exceptional with coding agents like Claude Code, Codex, or Cursor.
• Experience building developer tooling or a platform that engineers relied on.
• Experience making meaningful improvements to CI, testing, or repository workflows in a large-codebase.
• Product judgment for internal systems.
• Strong software engineering with experience building and operating substantial production software.
• Ability to use evaluation over intuition for agent behavior.
• Ability to provide cross-team influence to set standards and change defaults.
• Pragmatic range to move between platform code, documentation, and hands-on enablement.

Nice to have

• Experience building cloud or remote development environments, coding-agent control planes, or secure execution sandboxes.
• Experience building or operating an agentic code review system.
• Experience designing agent tools, skills, context systems, memory, orchestration, or model-routing infrastructure.
• Experience using DORA, SPACE, or similar frameworks.
• Experience in financial services or another security- and compliance-sensitive environment.

Benefits

• Competitive salary and equity package
• Generous relocation package to NYC
• Unlimited PTO + paid company holidays
• Access to holistic medical, dental, and vision plans
• Company 401(k) including Mega backdoor Roth options
• Commuter, and HSA/FSA plans
• Lunch and snacks provided in the office, & dinner if you stay late
• Access to virtual mental health care (Spring Health) and health concierge (Rightway)
• Access to counseling for stress management, dependent care, nutrition, fitness, legal, and financial issues (Guardian WorkLifeMatters EAP)

About the company

Savvy is a registered investment advisor (RIA) that provides a proprietary tech platform and business-in-a-box for financial advisors. The company is a Series C firm that uses AI-native tools to automate wealth management processes.