Replace Take-Home Tests & AI Cheating with Live PostgreSQL Sandboxes & Tamper-Proof Trust Scores.
Provision live 1.2M-row database containers in 18ms. Automatically detect tab switches, DevTools, and AI assistance with auditable 0–100% Trust Scores and deterministic auto-grading.
⚡ No credit card required • Instant 30-second assessment creation • Preloaded role templates
Experience the Candidate Assessment Engine
Switch between the 3 interactive tabs below to see how candidates code, how AI detects cheating, and how recruiters evaluate scorecards.
-- Question: Find Top 3 Categories by Net Revenue in 2026 with > 5,000 Orders
SELECT
p.category_name,
COUNT(o.order_id) AS total_orders,
CONCAT('$', ROUND(SUM(o.amount_usd), 2)) AS total_net_revenue
FROM orders o
JOIN products p ON o.product_id = p.id
WHERE o.status = 'completed' AND o.created_at >= '2026-01-01'
GROUP BY p.category_name
HAVING COUNT(o.order_id) >= 5000
ORDER BY SUM(o.amount_usd) DESC
LIMIT 3;| category_name | total_orders | total_net_revenue |
|---|---|---|
| Consumer Electronics | 18,420 | $1,842,500.00 |
| Home & Kitchen | 12,190 | $920,150.00 |
| Apparel & Fitness | 8,950 | $640,800.00 |
Why Modern Engineering Teams Choose Topfolio
Four purpose-built capability pillars designed to identify top 5% analytical problem-solvers with zero hiring bias.
Multi-Table PostgreSQL & Python Sandboxes
Stop testing candidates with multiple-choice trivia. Topfolio provisions live, isolated cloud database containers where candidates write real queries on 1M+ row business schemas.
- Sub-20ms deterministic execution on PostgreSQL 16
- Multi-table schemas (Orders, Customers, Payments, Ledger)
- Python Jupyter runtime with Pandas, NumPy, and scipy.stats
- Realistic messy data realities (NULLs, duplicates, timezones)
Multi-Modal AI Proctoring & Trust Scoring
Eliminate ChatGPT copy-pasters and proxy test-takers with continuous multi-vector proctoring that generates an objective, auditable Trust Score (0–100%).
- Face Mesh geometry with multiple-face & absence detection
- Fullscreen lock with tab switch and DevTools deterrents
- Copy-paste disabled & clipboard hijacking prevention
- Timestamped violation log with cryptographic snapshot evidence
Pre-Built Role Benchmarks & Custom Schemas
Launch standardized screening assessments in under 30 seconds, or upload your proprietary company database schemas and private question banks.
- Pre-built tests: Junior Data Analyst, BI Specialist, Analytics Engineer
- 100+ curated SQL, Python, Excel & Statistics questions
- Instant test cloning and difficulty adjustments
- Support for custom company CSV/SQL dumps and test cases
Candidate Scorecards & ATS Hiring Triage
Empower your engineering managers and recruiters to review full code submissions, runtime performance, and proctoring integrity in one centralized dashboard.
- 1-Click Shortlist / Maybe / Reject hiring verdicts
- Read-only code diffs with line-by-line syntax highlighting
- Shareable public scorecard links for hiring committee review
- CSV export and automated ATS webhook notifications (Greenhouse, Lever)
Topfolio vs Legacy Assessment Platforms
See how Topfolio replaces bloated annual vendor contracts with high-fidelity, pay-as-you-go technical testing.
| Assessment Capability | 🟢 Topfolio EnterpriseMODERN | HackerRank / Mercer |
|---|---|---|
| Relational Database Engine | Live PostgreSQL 16 Multi-Table Containers | Isolated SQLite / single table |
| AI Anti-Cheat & Trust Scoring | Multi-Modal (Webcam + Browser + Audio + AI) | Webcam snapshot add-on only |
| Pricing Model | Pay-As-You-Go Credits (₹50–₹100 / test) | Forced Annual Contracts ($4,000+/yr) |
| Self-Serve Free Trial | 5 Free Assessments Immediately on Signup | Requires sales demo call |
| Messy Real-World Business Datasets | 1M+ Row Swiggy, Stripe & Shopify Schemas | Synthetic LeetCode-style puzzles |
Pay Per Evaluated Candidate. Zero Waste.
Credits never expire. Only completed candidate test sessions consume a credit.
Starter Pack
Perfect for hiring 1–3 data analysts or interns.
- 25 Full Candidate Evaluation Credits
- PostgreSQL & Python Code Sandboxes
- Standard AI Proctoring & Trust Scoring
- Standard Question Bank Access
- Candidate Scorecards & PDF Export
- Never-Expire Lifetime Credit Validity
Growth Pack
Ideal for scaling data teams and multi-role hiring drives.
- 100 Full Candidate Evaluation Credits
- Everything in Starter Pack
- Custom Assessment Branding
- Upload Custom Company Schemas
- Multiple Recruiter Team Seats
- Priority Slack & WhatsApp Support
- Never-Expire Lifetime Credit Validity
Scale & Enterprise
For high-volume hiring, campus recruitment & talent agencies.
- 500 Full Candidate Evaluation Credits
- Everything in Growth Pack
- ATS Webhook Integrations (Greenhouse, Lever)
- Bespoke Question Bank Design by Anuj Saini
- Dedicated Technical Account Manager
- Custom SLA & Compliance Support
- Never-Expire Lifetime Credit Validity
Frequently Asked Questions by Hiring Teams
Everything you need to know about candidate integrity, sandbox security, and volume billing.
A multi-modal anti-cheat engine runs directly in the browser:
- Face Mesh AI verifies facial geometry and flags multi-face or absence events
- Fullscreen lock detects tab switches and DevTools attempts
- System-level clipboard protection blocks external code pasting
- Audio analysis flags background conversations
- Every anomaly is logged with timestamped cryptographic evidence and factored into a 0–100% Trust Score
Yes — 100% native in modern web browsers.
- No bulky Chrome extensions or desktop executables to install
- Works in Chrome, Edge, Firefox, and Safari
- Uses standard Web APIs for camera, fullscreen, and audio permissions
Yes — Growth and Enterprise plans support custom content.
- Provision custom PostgreSQL schemas (sanitized e-commerce, fintech, or healthcare tables)
- Configure custom test suites with evaluation rubrics
- Automated test assertions against your own expected outputs
No — all credit packs have lifetime validity.
- Buy a 100-credit pack today and use it over 6, 12, or 24 months
- Credits never expire as your hiring needs fluctuate
Stateful autosave keeps progress safe.
- Code drafts persist every 3 seconds to cloud storage
- Candidate reconnects via their secure invite link
- Proctoring logs the outage timestamp without falsely flagging it as a violation
Automated webhook triggers on test completion.
- Push candidate scores, trust ratings, and PDF scorecard links
- Native support for Greenhouse, Lever, Ashby, and Workable
- Custom Slack or email webhooks for any other workflow