AI Integrations Engineer Intern

Stackmint; Paris; Hybrid; EUR 40,000 - 60,000; Full time

Job summary

Stackmint, Inc. is looking for a developer to build production-grade API connectors that facilitate governed AI execution for enterprise systems. This role involves designing and building APIs, implementing webhooks, and writing comprehensive documentation.

The ideal candidate is studying a technical field, is comfortable with REST APIs and server-side languages, and has an interest in how language models interact with tools. Join us to contribute to innovative integrations within a dynamic team!

Qualifications

• Studying computer science, software engineering, or equivalent self-taught background.
• Experience with at least one server-side language.
• Bonus: previously integrated with Salesforce, HubSpot, or similar platforms.

Responsibilities

• Design and build API connectors between Stackmint Branch and enterprise systems.
• Implement webhooks, event triggers, and polling mechanisms for workflow executions.
• Write clear and complete connector documentation for partners.

Skills

REST APIs

JSON schema

OAuth 2.0

Webhook patterns

Python

TypeScript

Node.js

Education

Computer Science or Software Engineering degree

Job description

You will build the connectors that make governed AI execution real — not toy integrations, production-grade connectors that partners and enterprises use to run live workflows. Every connector you ship lands in the Stackmint marketplace and potentially runs inside a client deployment on day one.

What you will do

• Design and build API connectors between the Stackmint Branch runtime and enterprise systems: CRMs, support platforms, ERPs, communication tools, and data sources.
• Implement webhooks, event triggers, and polling mechanisms that allow external systems to initiate and receive governed workflow executions.
• Write connector documentation that partners can use to integrate without needing engineering support — clear, complete, and tested against the real API.
• Test integrations against enterprise API schemas in depth, including edge cases, authentication flows, pagination, and rate limit handling.
• Work with the presales and partner teams to scope and build integrations required for active sales cycles and partner deployments.

What we are looking for

• Studying computer science, software engineering, or a technical field — or equivalent self-taught background with demonstrable shipped projects.
• Comfortable with REST APIs, JSON schema, OAuth 2.0, and webhook patterns.
• Experience with at least one server-side language: Python, TypeScript, or Node.js.
• Curious about model context, MCP, and how language models interact with external tools and systems.
• Bonus: has previously integrated with Salesforce, HubSpot, Zendesk, or similar enterprise platforms.

What good looks like in 90 days

• Production connectors shipped for at least 3 enterprise platforms.
• A connector testing framework and documentation template ready for partner use.
• At least 1 Bud built using your own connector and published to the Stackmint marketplace.