Role: Senior Backend Engineer
Task: Fast cache consensus & data sync
Speed: 14ms response · 0 bugs found
Evaluate real work. Not interview scripts.
No resume sifting. No whiteboard trivia. TrueDay turns candidate evaluation into a realistic 3-day work simulation for software engineering and product teams.
Three simple steps. No guesswork. Real proof. TrueDay sets up the workspace — you evaluate real candidate work and make offers with total confidence.
Craft the simulation
Provide recent PRs, RFCs, or bug reports. TrueDay builds a live code workspace, real tasks, and scoring guides matched to your stack.
Tune the scope, set edge-case challenges, and save directly into your challenge library.
Building take-home exercises, interview prompts, or coding challenges from scratch.
Simulation: High-Throughput Trading Engine
Distributed Consensus & Order Matching · 100 pts · 90 min sprint
Execute all tasks inside the isolated workspace. TrueDay tracks system architecture, safety locks, and response speeds under heavy traffic. Schema: Orders(order_id, book_id, side, price, qty), LedgerEntries(entry_id, account_id, amount)...
Simulation: High-Concurrency Ledger
Evidence quote: "Implemented distributed redis lock with lease renewal..."
Evidence quote: "Event sourcing snapshotting keeps reconciliation under 12ms..."
Flagged for manual review.
Observe real execution
Candidates work inside real coding environments. TrueDay automatically checks pull requests, commits, and terminal commands against your scoring guide with exact code lines.
Inspect flagged moments in seconds. Approve verified work with complete confidence.
Spending weekends grading submissions or debating subjective code style.
Replay the truth. Make the offer.
TrueDay logs every key step: code refactors, terminal commands, trade-off reasoning, and pull request quality.
Watch 3-minute Moment Replays with your committee. Align on concrete evidence, not vibes.
Endless hiring meetings based on vague interview impressions.
Alex Chen — Distributed Cache Invalidation Incident
Self-reviewed edge cases
Added 6 test assertions for Redis partition before asking for review.
Communicated trade-offs
Proactively messaged tech lead regarding stale read vs latency cost.
Score: 94th Percentile
Top problem solver score. Recommended for Staff Offer.
Replace interview fatigue with pure signal.
Every plan includes live coding workspaces, automated work scoring, and candidate reports.
Ideal for founders and small engineering teams evaluating their first candidates.
- 3 simulated candidate sessions
- Standard 3-day sprint templates
- Moment Replay timeline review
- Candidate Performance Report
For high-output engineering teams hiring continuously with zero interview waste.
- Unlimited candidate work simulations
- Custom scenario builder with your repo
- Gemini multimodal reasoning & scoring
- Candidate ranking & work activity log
- Hiring committee export pack
For enterprise organizations requiring private cloud sandboxes and custom ATS webhooks.
- Dedicated VPC container sandbox clusters
- Greenhouse, Lever & Ashby integrations
- Custom scoring guides & activity tracking
- SSO & SOC-2 compliance package