Senior AI Agent Tooling Engineer

MongoDB; United States; On-site; USD 109,000 - 215,000; Full time

Job summary

MongoDB is seeking a software engineer to build and maintain the tooling, evaluation systems, and quality gates behind its agent skills in the AI Builder Experience organization. You will ship internal systems including CLI tools, reusable libraries, evaluation harnesses, and CI workflows.

This role blends developer tooling, applied AI, and software quality, with a focus on producing durable, observable, and safe tooling that scales across repositories and CI environments.

Qualifications

• 2+ years of experience building production software and developer tooling.
• Strong API design, testing, error handling, and maintainability.
• Experience building CLIs, libraries, test infrastructure, static analysis, or CI/CD workflows.
• Ability to design developer-friendly, reliable automation systems.
• Experience reasoning about correctness and safety with ambiguous inputs.

Responsibilities

• Build and maintain agent skills and the infrastructure to validate, evaluate, publish, and maintain them.
• Design evaluation datasets and workflows that compare agent behavior against a baseline and produce actionable quality signals.
• Build agent metrics and observability: skill selection and routing, success and failure outcomes, tool calls, latency, and token usage.
• Design safety and quality gates for agent-authored content: rule packs, static analysis, confidence thresholds, structured verdicts, and bounded suppression.
• Create CLIs, libraries, and MCP integrations that other repositories adopt and that run in local development and CI.
• Integrate tooling into GitHub Actions and other CI workflows, including secrets, annotations, exit codes, and artifacts.
• Build code-generation quality checks, such as anti-pattern catalogs and linting for AI-generated MongoDB code.
• Investigate real failures such as nondeterministic results, false positives, and unsafe generated guidance, and turn them into reusable improvements.
• Collaborate with engineers, security partners, and product teams; communicate trade-offs, risks, and ownership across teams.

Skills

2+ years software engineering

API design

Testing

CI/CD workflows

Go

Python

JavaScript/TypeScript

Java

C#

Tools

GitHub Actions

Job description

MongoDB is seeking a software engineer to build and maintain the tooling, evaluation systems, and quality gates behind its agent skills in the AI Builder Experience organization. You will ship internal systems including CLI tools, reusable libraries, evaluation harnesses, and CI workflows.

This role blends developer tooling, applied AI, and software quality, with a focus on producing durable, observable, and safe tooling that scales across repositories and CI environments.