Contact
We reply to learners.
Questions, bugs in a chapter, or ideas for what to teach next — email support. Typical reply within one business day.
What you can write about
Course feedback or a chance to collaborate — both are welcome.
01
Feedback & suggestions
Stuck on a chapter, found a bug, or want a new topic covered? Tell us — learner notes shape what we ship next. Include the course and page if you can.
02
Work together
Building a product, hiring for engineering, or need a collaborator on a project? I am open to joining interesting work — reach out and we can talk.

Jaydeep Rathore
A note from Jaydeep
I started jdfive Learning to give engineers interview prep that feels like the job — systems thinking, honest trade-offs, and practice you can actually reuse. If a chapter is unclear or a topic is missing, tell me. I read every note and it changes what we ship next.
Prefer a message over email
Ping Jaydeep on LinkedIn — a short note with context is enough. Faster than ticket queues, and it goes straight to a human.