$ python main.py Priya 19:04
[0, 1]
exit 0 in 51ms
For engineering coaches
Mentor is one place for you and your clients: mock interviews and coaching sessions with structured write-ups, skill scores that build a progress record, curriculum tracked down to the concept, and homework that actually comes back.
Invite-only. Already coaching here? Sign in above.
Session write-up
Strengths and what went well
Broke the problem into read and write paths unprompted; the fan-out trade-off discussion was genuinely strong.
Advice for future interviews
Open with the read/write ratio and rough QPS before naming components.
Private notes. Only you see these.
The loop
Book the session; it lands in both calendars and your client gets a clean email with the when and the brief.
Mock interviews, system design deep-dives, behavioral rounds: the session page holds the agenda, materials, and homework you assign in the room.
Star scores per skill, strengths, areas for improvement, advice for the real interviews. If you forget, Mentor nudges you an hour after the session.
Every write-up feeds the client's progress record: skills moving up, topics ticked off, homework reviewed.
The live workbench
Every session opens a live workbench: a shared editor with both cursors visible as you type, a terminal that runs the code for real, and a whiteboard one tab away. Afterwards the whole session replays like a recording.
Python, JavaScript, TypeScript, Java, Go, and C++ execute on Mentor's own workers, time-capped and rate-limited, with output landing in a terminal that appends instead of wiping.
System design happens on an infinite canvas, with microservice, database, cache, and event bus shapes already in the library.
Every edit and every run is kept, so a session can be rewatched like a recording: who typed, what ran, and how the design took shape.
What's inside
Sessions, curriculum, homework, allowance, and access in one hub. Clients of the same coach never see each other; each signs into their own engagement only.
Problem solving, coding, system design, communication, behavioral: scored one to five, session by session, with the movement shown since last time.
"Dynamic programming" is a plan line; sliding window, knapsack, and LCS are the checkboxes inside it. Notes per topic turn sessions into a record.
You set the brief, the client hands in a write-up of what they solved and where they got stuck, and your review lands on the same page.
Record the sessions a client has purchased; usage counts down automatically as sessions complete or elapse. No spreadsheets on the side.
Optional Google Calendar sync mirrors sessions into both diaries, touching only the events Mentor created. Bookings, write-ups, and reminders arrive as clean, branded email.
For your clients
You invite each client by email and they get their own sign-in to the engagement, not a spectator seat on your admin. Everything below is theirs from day one.
They see their sessions, curriculum, and homework. Never your other clients, and never your private notes.
Skill scores from every write-up build into a trajectory they can watch move between sessions.
Strengths, areas to improve, and interview advice from every session, kept in one place instead of a chat scrollback.
The brief, their write-up of what they solved and where they got stuck, and your review, together on one page.
Sessions mirror into their Google Calendar if they connect it, and bookings arrive as clean, branded email.
Pricing
No tiers, no seats to count, no features held back. One monthly price for you as the coach, and your clients never pay Mentor anything.
Coach
Free while Mentor is in early access.
Early access coaches keep free use until general availability, then the price above applies. No card needed today.
Questions
Ask below with a note about your coaching and we set up your coach account. From there you invite your own clients by email. Clients who prefer to stay off the platform can be tracked as record-only, a name with no sign-in.
One plan at £29 a month per coach, with everything included and no limits on clients or sessions. Early access coaches use Mentor free until general availability. Clients never pay Mentor anything.
No. Fees stay between you and your clients. Session allowances record what has been agreed and count down as sessions complete, so the ledger is honest without being a payment system.
Never. Each client signs into their own engagement and nothing else. Your private session notes are visible to you alone, and never to the client they are about.
No. The sync is optional for each person separately, and when connected Mentor touches only the events it created. How that access is handled is spelled out in the privacy policy.
Interview prep is the sweet spot: mocks, system design deep-dives, behavioral rounds. But the loop of sessions, write-ups, curriculum, and homework fits any 1-2-1 engineering coaching.
Yes. The workbench executes Python, JavaScript, TypeScript, Java, Go, and C++ on Mentor's own workers, with time and output limits so nobody can wedge a session. Nothing runs in anyone's browser, and the playground gives everyone a free scratchpad outside sessions.
Mentor is invite-only while it grows. Tell us a little about your coaching and you will hear back by email, usually within a day.