Join us at Coursfy as a Software Engineering Intern and help build a system that allows our users to connect their own custom domains (e.g., learn.mysite.com) to our platform. This is an exciting opportunity to work on real-world infrastructure challenges such as dynamic domain mapping, DNS verification, SSL certificate provisioning, and request routing through reverse proxy.

As an intern, you'll collaborate with experienced developers to design and implement systems that support multi-tenant web applications with dynamic SSL and domain configurations.

What You’ll Work On:

• Enabling custom domain support for Coursfy users

• Implementing DNS verification and handling DNS records

• Automating SSL provisioning using Let’s Encrypt and the ACME protocol

• Routing traffic through NGINX, Caddy, or Traefik as a reverse proxy

• Building secure and scalable systems for a multi-tenant architecture

Requirements:

• Familiarity with NGINX, Caddy, or Traefik (classroom or project experience is great!)

• Some exposure to Let’s Encrypt, Certbot, or ACME protocols

• Hands-on experience with a backend framework (e.g., Node.js, Django, or Laravel)

• Understanding of DNS concepts and domain linking

• Interest or experience in building multi-tenant applications

• Bonus: Experience with custom domain linking or nameservers