Remote Full-Stack Engineer—Node.js/TypeScript & AI APIs

M4 Partners; United States; Remote; USD 90,000 - 150,000; Full time

Job summary

M4 Partners is seeking a Full Stack Developer with strong Node.js skills to connect our AI platform with internal and third-party services through APIs and MCP integrations. You will build features across the stack and ensure reliable production operations.

Responsibilities include developing backend services, building frontend functionality, and designing APIs with authentication and data handling. You will work with AI specialists and business analysts to deliver complete features, with a

Qualifications

• Strong commercial experience with Node.js and JavaScript/TypeScript.
• Experience delivering both frontend and backend software.
• Design and integrate APIs including authentication and JSON data handling.
• Knowledge of MCP and building MCP integrations or similar AI tool integrations.
• Experience with at least one modern frontend framework (React, Vue, Angular).
• Experience with relational or document databases and solid data modeling.
• Understanding of secure development, automated testing, version control and deployment practices.
• Ability to investigate problems across the application stack and explain technical decisions clearly.

Responsibilities

• Develop backend services in Node.js and JavaScript/TypeScript.
• Build and maintain frontend functionality using a modern web framework.
• Design, implement, document and integrate APIs connecting our platform and external services.
• Develop MCP clients and servers exposing tools, resources and capabilities to AI apps.
• Define and validate JSON schemas, API contracts and integration payloads.
• Implement authentication, authorization, secrets management and access controls.
• Build database models, queries and migrations to support requirements.
• Create reliable integrations with timeouts, retries, and rate-limit handling.

Skills

Node.js

JavaScript/TypeScript

Frontend framework

APIs design

MCP integrations

Databases

Security & testing

Version control

Tools

React

Vue

Angular

Job description

M4 Partners is seeking a Full Stack Developer with strong Node.js skills to connect our AI platform with internal and third-party services through APIs and MCP integrations. You will build features across the stack and ensure reliable production operations.

Responsibilities include developing backend services, building frontend functionality, and designing APIs with authentication and data handling. You will work with AI specialists and business analysts to deliver complete features, with a