Backend Developer - Intern

About IntervAI

IntervAI is on a mission to revolutionize hiring. We build AI-powered tools that automate early-stage interviews for recruiters and help candidates prepare with confidence through realistic mock interviews. With both B2B and B2C solutions, we're making hiring more efficient, inclusive, and future-ready—blending human values with AI innovation.

Role Overview

We’re looking for a motivated Backend Developer Intern who’s passionate about backend systems, excited by AI technologies, and eager to work with NestJS and JavaScript/TypeScript. You’ll play a hands-on role in improving our API infrastructure, integrating AI services, and shaping features used by real users.

• Develop and maintain scalable backend services using NestJS and TypeScript/JavaScript


• Integrate external APIs (OpenAI, Azure, ElevenLabs, etc.) into our platform


• Work with both relational (PostgreSQL) and NoSQL (e.g., MongoDB) databases


• Design and optimize RESTful APIs to support our frontend and AI layers


• Contribute to authentication, authorization, and user session flows


• Collaborate in code reviews, product discussions, and sprint meetings

You Might Be a Great Fit If You

• Are currently pursuing or recently completed a degree in Computer Science, Engineering, or a related field


• Have solid experience in NestJS and JavaScript/TypeScript


• Are familiar with backend fundamentals: APIs, databases, cloud services


• Have a strong interest in AI applications and enjoy experimenting with new tools


• Work well in fast-paced, collaborative, and remote environments

What We Offer

• Real contributions to a live AI product used by recruiters and candidates


• Close mentorship from a founding team with experience in AI, product, and engineering


• Flexible working hours and remote setup


• A collaborative, curious, and growth-focused startup culture


• Potential for ongoing freelance or part-time work after internship


• This is an unpaid internship designed for learning, portfolio development, and gaining real-world startup experience. You’ll work directly with the founding team and get exposure to AI integrations, live product development, and a fast-moving, international tech environment.