Env Engineer — Full-Stack AI Training Envs (Equity)

Fleet AI, Inc.; Buffalo (NY); On-site; USD 150,000 - 210,000; Full time

Job summary

Fleet AI is seeking an Environment Engineer to own end-to-end environments, from design through first graded agent rollout. You will rebuild full-stack environments faithful to real business conventions, with agent-facing tools, data, tasks, and programmatic verifiers.

You will define the env, build it, design contracts, generate data, and collaborate with experts to ship environments that produce training signals at scale.

Qualifications

• Experience building end-to-end environments for AI agents.
• Strong TypeScript and web fundamentals.
• Ability to work with domain experts and translate feedback into code.
• Ability to ship quickly while maintaining quality.

Responsibilities

• Build and own end-to-end environments for agents.
• Design tool contracts, data models, and seed pipelines.
• Review envs and data for correctness and robustness.
• Collaborate with domain experts to QA envs and tasks.
• Instrument environments for agent training and evaluation.

Skills

TypeScript

Full-stack

Web fundamentals

AI tooling

Tools

SvelteKit

React

Node.js

Express

Docker

AWS

Postgres

Job description

Fleet AI is seeking an Environment Engineer to own end-to-end environments, from design through first graded agent rollout. You will rebuild full-stack environments faithful to real business conventions, with agent-facing tools, data, tasks, and programmatic verifiers.

You will define the env, build it, design contracts, generate data, and collaborate with experts to ship environments that produce training signals at scale.