Backend Developer — Node.js / Express

We're looking for a mid-level backend developer to join our team and take ownership of an existing production app. You'll be building new features, not starting from scratch.

What You'll Do

Build and ship new features on an existing Node.js/Express backend

Work with MongoDB (Mongoose) for data modeling and queries

Maintain real-time features using Socket.io

Handle file uploads and AWS S3 storage

Work with JWT auth, rate limiting, and security best practices

Use Node-cron for scheduled tasks and Axios for third-party API integrations

Keep things running cleanly with PM2 in production

What You Bring

2–4 years with Node.js and Express.js

Solid MongoDB/Mongoose experience

Comfortable reading and extending existing codebases

Experience with Socket.io or real-time systems

Familiar with AWS S3, Multer, Nodemailer

Tools: PM2, Swagger, Joi, Nodemon

Nice to Have

Experience with JWT-based auth systems

Exposure to AI/LLM API integrations (Claude, OpenAI, etc.)

Pay: From $50,000.00 per year

Work Location: Hybrid remote in Brooklyn, NY 11204