For candidates · free
Find jobs that fit, get discovered by companies privately, take their interviews on your own time — and see every result in one candidate portal.
Sign in with Google or GitHub · your profile is never public
Past assessments
Acme Retail
AI Interview
Northwind Labs
Technical Test
Brightline
Chat Screening
Your report · Acme Retail
Top 15% of 40 candidates
Strong: customer handling
To improve: stock control
Your candidate portal
A live feed of real listings filtered by your job preferences. Apply straight at the source — nothing is sent on your behalf.
Open →Turn on discovery and companies hiring for your role can find you. Never a public list, never your current employer.
Open →See how well your CV fits a role and exactly what to improve before you apply. Private, just for you.
Open →Seniority, location, work type and salary — set them once and your feed and matches follow.
Open →Every job you applied to in one list, with where it came from and when — for your own reference.
Open →Every interview and test a company invited you to — start pending ones, resume, and see what's completed.
Open →When a company invites you
Companies hiring on StackMastery screen everyone with the same assessment, so you're judged on what you can do — not on who read your CV first.
01
Apply on a company's careers page, or they invite you. You get a personal link by email.
02
Your invitation is yours alone — sign in with the address it was sent to, or create a free account in seconds.
03
AI interview, test, chat or showcase — on your laptop or phone. Progress saves if your connection drops.
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It appears in Past assessments. Optionally unlock your personal report to see your scores and where to improve.
What you might be asked to do
AI Interview — A conversation that follows up on your answers — speak or type.
Skills Test — Timed questions. Stay on the tab — switches and pastes are noted.
Technical Test — Coding or SQL tasks for engineering roles.
Chat Screening — A few quick text questions, from any phone.
Showcase — Share your screen and walk through your real work.
Role-Play — Handle a realistic scenario — a customer, a negotiation.
Personal report · optional
Companies don't always share feedback. For any completed assessment you can unlock a report written for your own learning.
One-time payment per report. Not a hiring decision — it never changes your application, and never includes questions, answers or the company's rubric.
Unlock your report
Built for you
No public profile. Discovery is off until you turn it on, and one switch turns it off again.
Assessments open only for the invited email, so nobody can take yours.
Take assessments on a laptop or phone before the deadline. Progress is saved as you go.
Invitations, reminders and updates from companies arrive in your inbox.
DSA, system design, OOP, DBMS and OS guides, plus company-specific prep.
Start preparing →Proctored, AI-graded practice rounds scored section by section before the real interview.
Try a practice round →Talk through answers and get feedback on how to tell your story.
Open the mentor →Yes. Your portal, the jobs feed, discovery, CV evaluation, the applications tracker and taking any company's assessment are free. The only paid, optional extra is unlocking a personal report for a completed assessment.
Set your preferences once — it takes two minutes.