Practice the interview.
Not the answers.
Upload your resume, the job description, and the company site. Get a voice interview built for that exact role — then a report that shows what you missed and how to say it better.
No card required. Takes about 15 minutes.
Three things in. One real interview out.
Upload Your PDF
We pull out your skills, projects, stack experience, and the specific resume claims worth probing.
Paste Job Posting
We separate required competencies from nice-to-haves and construct targeted interview questions.
Company URL
We read what they build so questions sound like they came directly from an insider hiring manager.
⚡ Setup takes about 60 seconds.
This is what it sounds like.
Listen to an actual adaptive session where the interviewer listens, detects thin answers, and asks smart follow-ups.
"How do you handle eventual consistency when syncing data between PostgreSQL and Elasticsearch in distributed microservices?"
"We implement Debezium for Change Data Capture (CDC) directly off the Postgres WAL. um The mutations are pushed to Kafka topics. Elasticsearch consumers then read those events idempotent using the document version ID..."
"Earlier you mentioned Kafka consumers — what happens if the Elasticsearch cluster drops offline for 15 minutes during an ingestion spike?"
Sample interview · Backend Engineer · medium difficulty · 100% voice interactive
How it works. Step by step.
From setup to diagnostic feedback in 15 minutes.
Upload
Resume, job description, company site.
Provide your credentials and target job details. Our parser immediately indexes key technical terms, project claims, and required skills.
What gets measured.
We separate technical knowledge from articulation mechanics.
ACCURACY
Did you actually answer the question?
- ✓Concepts a strong answer is required to cover
- ✓What you covered, partially covered, and missed
- ✓Factually inaccurate statements with exact corrections
- ✓Concrete evidence citations directly from your transcript
DELIVERY
How did it come across?
- ✓Speaking cadence and words per minute (WPM) calibration
- ✓Filler-word frequency ("um", "like", "you know")
- ✓Extended pauses, dead air, and hesitation spikes
- ✓Repetitive language loops and circular explanations
💡 Delivery is coaching, not a verdict. Pace and fillers are practice signals reported separately from technical mastery.
The diagnostic report.
This is what you get after every session: evidence-backed breakdown, missed concepts, and exact rewrites.
Senior Backend Engineer @ Stripe
"How do you execute zero-downtime database schema migrations for tables with over 100M active records?"
Running a raw ALTER TABLE ADD COLUMN acquires an ACCESS EXCLUSIVE lock on Postgres tables, blocking all read/write queries until finished. For 100M rows, this causes noticeable outage.
"We execute zero-downtime migrations using the Expand/Contract pattern. First, we add the new column as nullable without locks. Then we update application code to dual-write to both old and new columns. Finally, backfill historical data asynchronously in background batches before contracting the old column."
🎯 Priority Action Items for Next Session
An adaptive interviewer. Not a script.
Static question lists test memorization. Adaptive voice interviews test actual technical judgment.
TRADITIONAL MOCK TOOLS
A FIXED QUESTION LIST
- Same static question list presented to every candidate
- Zero follow-up questions when your answer is thin or incomplete
- Ignores claims and details you previously mentioned
- Generic AI summary feedback at the end without evidence
DEVTRACKACADEMY
AN ADAPTIVE VOICE INTERVIEWER
- Questions custom built from your resume against that exact job post
- Follows up immediately when your answer lacks concrete depth
- Comes back to specific architecture claims you mentioned earlier
- Steps in constructively only if you state something technically wrong
- Provides transcript timestamps and rubric evidence for every score
"Earlier at 04:12 you mentioned building a RAG pipeline with Pinecone vector indexes — how did you decide on your embedding chunk size vs latency trade-offs?"
When it's time to code, the screen changes.
Integrated coding environment where the AI listens as you talk through your implementation.
Built for engineers in transition.
Whether you're facing university campus drives or aiming for senior tier promotions.
Campus Placements
Practice for the exact company you're interviewing at next week.
Switching Roles
Find out which claims on your resume don't hold up to deep technical probing yet.
First Job & Self-Taught
Get used to articulating your project decisions out loud before it really counts.
How scoring works (and why you can trust it).
Scores come from a rubric, not a vibe.
The required concepts for a strong answer are established before you start. Your transcript is checked against explicit engineering criteria rather than opaque LLM ratings.
Experience questions are evaluated for depth.
Questions about your own projects and past work are scored on technical specificity, trade-off clarity, and implementation detail — never arbitrarily marked wrong.
We don't score your accent.
Pronunciation is never scored. Speech cadence and WPM ranges are calibrated across global English varieties, and articulation feedback is strictly decoupled from technical grade.
Every score links directly to evidence.
Click any grade point in your diagnostic report to jump straight to the exact sentence timestamp in your audio transcript that justified that score.
Your practice sessions are 100% private.
We process audio and generate transcripts strictly to create your diagnostic reports. Your interviews are NEVER shared with employers or recruiters under any circumstances. You retain total control to delete any audio recording or transcript with one click at any time.
Pay for the minutes you actually talk.
5 credits a minute. Finish early and the rest goes back to your balance. Start with 100 credits free — no card.
Starter
One easy interview, with room to spare.
≈ 20 minutes
Placement pack
Three interviews, or two with coding rounds.
≈ 50 minutes
Season pass
A full placement season.
≈ 120 minutes
Credits never expire · Coding round +20 · Skill challenge +30
Part of DevTrackAcademy.
Everything you need to know.
Clear, honest answers about voice interviews, privacy, and scoring.
Find out what you'd actually say.
One interview. Fifteen minutes. A diagnostic report that tells you where you actually stand.
⚡ No credit card required. Takes 60 seconds to set up.