Senior Developer Experience Engineer - Agent Tooling

Block; San Diego (CA); Remote; USD 217,000 - 327,000; Full time

Job summary

Block is seeking a Developer Experience Engineer to build tooling and agent workflows that empower engineers to change our largest monorepos quickly and safely. You will own the interfaces engineers use to observe, steer, and give context to agents and you will implement guardrails that keep complexity in check as agents take on bigger changes.

This is a high-leverage role where every improvement you ship multiplies across the engineering organization.

Qualifications

• Shipping developer tooling at scale across CLIs, desktop integrations, or internal platforms.
• Experience building agent workflows that scale work across large codebases.
• Experience upgrading frameworks and leading migrations or large refactors.

Responsibilities

• Build and ship tools engineers and their agents use daily, and own adoption, distribution, and support.
• Design and evolve agentic loops and the harnesses, skills, and context for reliable engineering work.
• Drive large-scale codebase changes with minimal disruption to product teams.
• Build guardrails, tests, and automation for safe agent-authored changes and monitor complexity.

Skills

Shipping tooling

Agent workflows

Framework upgrades

Large codebases

Communication

Job description

Block is seeking a Developer Experience Engineer to build tooling and agent workflows that empower engineers to change our largest monorepos quickly and safely. You will own the interfaces engineers use to observe, steer, and give context to agents and you will implement guardrails that keep complexity in check as agents take on bigger changes.

This is a high-leverage role where every improvement you ship multiplies across the engineering organization.