Remote Senior Engineer, Agent Runtime & Cross-Platform

rovecode; United States; Remote; USD 100,000 - 144,000; Full time

Benefits offered by this job

Remote work in Europe

Job summary

rovecode is seeking a runtime engineer to own the local runtime that carries out an agent’s tool calls, supervises processes, and records sessions across Windows, macOS, and Linux.

You will design policy layers and define clear limits between requested actions and machine execution, ensuring consistent runtime behavior with comprehensive CI coverage. This remote, Europe-based role involves reviewing peers, contributing code, and shipping robust tooling for local deployments.

Qualifications

• Experience shipping locally runnable software (CLI/build tool/agent).
• Strong TypeScript background with Bun or Node.js.
• Ability to reason about action boundaries on a machine.
• Excellent written English for design notes.

Responsibilities

• Design and ship runtime policy layers, including a possible capability model for MCP servers, and document their limits.
• Make behavior consistent across Windows, macOS, and Linux, with CI coverage on all three platforms.
• Design an append-only session log that supports rewinds, checkpoints, and exports without unnecessary cost.
• Review the work of other runtime engineers and take part in peer review.
• Work directly in the runtime code when documentation does not answer implementation questions.

Skills

TypeScript

Bun/Node.js

CLI tooling

CI automation

Cross-OS testing

Job description

rovecode is seeking a runtime engineer to own the local runtime that carries out an agent’s tool calls, supervises processes, and records sessions across Windows, macOS, and Linux.

You will design policy layers and define clear limits between requested actions and machine execution, ensuring consistent runtime behavior with comprehensive CI coverage. This remote, Europe-based role involves reviewing peers, contributing code, and shipping robust tooling for local deployments.