Senior Agent Harness Engineer

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Senior Agent Harness Engineer in USA

Savvy Wealth
Full time
Email

USA
09/19/2026
Report

New York, NY

Responsibilities

Own the roadmap for developer and coding-agent interaction with codebases, internal tools, testing, review, and software delivery.
Build the developer-facing cloud coding layer covering task intake, environment setup, context, tools, permissions, observability, review, and delivery.
Improve agent-generated code and architecture through repository structure, interfaces, documentation, instructions, feedback loops, and context design.
Own the internal skills and instructions system, including contribution standards, evaluation, discoverability, maintenance, and pruning.
Improve CI, local development, testing, debugging, deployment workflows, and other developer productivity bottlenecks.
Measure correctness, reviewability, cost, latency, and human intervention using developer research, satisfaction data, DORA, SPACE, traces, and task-level evaluations.
Drive adoption by working directly with engineers, teaching effective practices, and turning successful experiments into organizational defaults.
Partner with infrastructure and security engineers on sandboxing, credentials, approvals, auditability, and safe cloud-agent access.

Requirements

Demonstrated substantial use of Claude Code, Codex, Cursor, or similar coding-agent tools, including task decomposition, context management, model selection, failure inspection, and maintainable implementation.
Experience building developer tooling or an internal platform relied on by engineers beyond the immediate team.
Meaningful experience improving CI, testing, repository workflows, or developer productivity in a substantial, long-lived codebase.
Ability to interview developers, identify root causes, create evidence-based roadmaps, and make product judgments for internal systems.
Strong software engineering experience building and operating substantial production software and implementing durable solutions independently.
Experience evaluating nondeterministic agent behavior by comparing prompts, context, tools, models, and workflows against representative tasks.
Ability to set standards and change defaults across teams through evidence-based cross-team influence.
Pragmatic range across platform code, repository conventions, evaluation data, developer interviews, documentation, and hands-on enablement.
Preferred experience with cloud or remote development environments, coding-agent control planes, secure execution sandboxes, agentic code review, agent tools and orchestration, model-routing infrastructure, DORA or SPACE, or security- and compliance-sensitive industries.

Benefits

Competitive salary and equity package.
Unlimited PTO and paid company holidays.
Medical, dental, and vision plans.
Company 401(k), commuter, and HSA/FSA plans.
NYC office in Manhattan.
Lunch and snacks provided in the office.
Virtual mental health care through Spring Health and health concierge services through Rightway.
Counseling and support for stress management, dependent care, nutrition, fitness, legal, and financial issues through Guardian WorkLifeMatters EAP.

Salary: $180k - $235k/yr

Savvy Wealth

Savvy Wealth is the trusted partner for independent financial advisors, combining infrastructure, service, and intelligent tools to make great advice easier to deliver. Disclosure: Savvy Wealth, Inc. is a tech company and the parent company of Savvy Advisors, Inc. All advisory services are offere...

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