Hiring engineers in 2026? Let them show you what they can actually build.

Send a link. Your candidate completes a real engineering problem — AI engineer, software engineer, ML engineer, data engineer, or security engineer — on their own time. You see ranked results, scores, and a hiring recommendation in 20 seconds. No live sessions. No scheduling. No guessing from a resume.

AI Engineer Software Engineer ML Engineer Data Engineer AI Security
Acme Corp · Senior AI Engineer
7 candidates
Avg score
58
/ 100
Advancing
2
recommended
Avg time
47m
of 60 limit
CandidateScoreRankTimeStatus
MK
Marcus K.
Score 79/100 · Advancing
Open full report →
Correct.Arch.TokenSec.
Gap analysis
+14 token-efficiency gap — passes too many chunks at retrieval, but reasoning is sound.
Anti-cheat
0 tab switches · 1 paste event · 1.4x typing speed normal range
Built for engineering teams at AI-native startups 5 engineering domains 300+ verified problems from real company interviews
The pattern

Most technical screens don't show you whether someone can actually do the job.

Medium· Fonzi AI

I Reviewed 50 Failed AI Hires From 2025

A Series B startup spent six months recruiting a Senior AI/ML Engineer from a FAANG company. Three weeks in, the CTO asked them to implement a basic data pipeline. The engineer couldn't do it. Not "did it poorly" — literally couldn't write the code.
Sammi Cox, Fonzi AI
Read the full article →
KORE1

How to Hire AI Engineers in 2026: Complete Staffing Guide

The average fill time for AI roles dropped to 25 days because smart companies have figured out that a drawn-out process is the same as a rejection. If your interview timeline stretches past three weeks, you are almost certainly losing people to someone who moved faster.
Gregg Flecke, KORE1
Read the full article →
Sierra

The AI-native interview

We removed our coding and algorithms interviews and replaced them with an AI-native onsite. The role is shifting from building the machine to designing and honing it.
Sierra Engineering
Read the full article →

These aren't outlier stories — they're the pattern. Engineering work has changed. Resumes and algorithm puzzles don't show whether someone can actually build, debug, and ship. Velocode does.

See how it works →
How it works

Four steps from job description to a ranked shortlist.

Paste your job description. We build the assessment. You send one link. Results come back ranked, with scores and recommendations.

1

Paste your job description

Or pick a role. We match the right problems from 300+ verified questions taken from real interviews.

2

We build the assessment

Custom-built around your role in under 60 seconds. Swap any problem. Cross-scored against multiple AI models.

3

Send one link

Candidates complete it on their own time. AI tools allowed. Everything is tracked, nothing is banned.

4

See ranked results

Every candidate gets a score and a hiring recommendation. See exactly what they understood — and where they fell short.

AI is allowed. Cheating is caught.

Banning AI tools doesn't reflect the job anymore. We score the parts AI can't fake — how candidates think through tradeoffs, design real systems, and reason about security. The best engineers use AI tools constantly — we just watch how they use them so you know if they actually solved it or just pasted an answer.

Typing patterns
We track time per character. Big sudden blocks of code get flagged as a paste.
Tab switching
Every tab switch is logged with a timestamp. Patterns show up in the report.
📋
Paste detection
Every copy-paste is counted and sized so you can see exactly what happened.
Time per section
Suspiciously fast completion is flagged automatically.
🔒
One-shot link
One active session per link. Duplicates blocked. Link expires after first use.
🧠
Reasoning scoring
We score the design decisions AI tools can't fake — tradeoffs, security thinking.
What we test

Five engineering roles. One platform.

Every domain is tested on real work — what the role actually requires on day one, not algorithm puzzles.

AI Engineer

Build, debug, and evaluate AI systems in production. Real problems from real AI interviews.

Software Engineer

The AI-era format Google and Meta now use — AI-assisted debug and code comprehension, not memorization.

ML Engineer

Deploy and maintain models in production. Pipeline failures, monitoring, real scenarios.

Data Engineer

Real pipeline work — dbt models, Airflow debug, Spark failures. Not SQL puzzles.

AI Security Engineer

Defend AI systems against real attacks — prompt injection, jailbreaks, guardrails.

Know in 20 seconds whether this candidate can actually do the job.

No more 45-minute live sessions that tell you nothing.

No more making a $200K decision based on a LeetCode score.

See exactly what each candidate understands, not just whether their code ran.

Every submission is scored on what hiring teams actually care about — not pass/fail test cases.

Correctness

Does the solution actually work for the real constraints — not just the happy path?

Example signal
Pipeline returns wrong answer on conflicting sources42/100
🏗
Architecture

Is the system design sensible? Clean boundaries, right scale, right tradeoffs.

Example signal
Single-service design for a 2M-document workload58/100
Efficiency

No wasted work. No unnecessary AI calls. No oversized inputs that burn money.

Example signal
Passes full document instead of relevant excerpt35/100
🔒
Security

Are the obvious attacks handled? Prompt injection, data leaks, missing auth.

Example signal
User input dropped straight into a system prompt12/100

The rubric adapts to the role — ML engineering assessments weight deployment and monitoring; data engineering assessments weight pipeline reliability and SQL depth; security assessments weight attack defense.

Strong candidates can tell when a screen is generic.

Good engineers know in 30 seconds whether a screen actually tests the job. Velocode problems come from real interviews at working engineering teams.

Your branding
Velocode is invisible — your company’s name is on the assessment.
AI tools allowed
We score how they use AI, not whether they use it.
Scores stay private
Candidates never see scores. Results go only to your dashboard.

Candidates receive the link from you — your email, your relationship. We never contact them directly.

Acme Corp Technical Assessment
38:24 remaining
AI EngineeringDebug · Hard
Find the bug — RAG retrieval is returning irrelevant docs
Production search recall has dropped sharply. AI tools allowed.
search.py
def search(query: str, k: int = 10):
    # Stage 1 — embed the query
    q_emb = embed_text(query, model="text-embedding-3")

    # Stage 2 — vector search over the corpus
    docs = vector_db.search(q_emb, k=k)

    # Stage 3 — filter weak matches
    return [d for d in docs if d.score > 0.7]
Claudeallowed
Recall on this RAG endpoint dropped 40% overnight. Nothing about the corpus changed. Where would you look first?
Three usual culprits: (1) query and corpus embeddings using different models, (2) the 0.7 score threshold is too strict for the new embedding's distribution, (3) a recent model swap on either side. Check the embedding model first.
The corpus was embedded last year with ada-002. My query path got upgraded to text-embedding-3 in last week's deploy.
That's it — different embedding spaces aren't comparable, so cosine scores collapse. Two fixes: re-embed the corpus with text-embedding-3 (better long-term), or pin the query path back to ada-002 (faster rollback).
Comparison

How Velocode compares.

Most platforms test algorithm puzzles and call it engineering hiring. Velocode tests the actual work — across every engineering role.

FeatureVelocodeCodeSignalHackerRankLitmusSaffron
Built for modern engineering hiring (not algorithm puzzles)
Scores what actually matters: correctness, design, efficiency, security~
Candidates already prep on the same scoring
Covers all 5 engineering roles (AI / SWE / ML / Data / Security)
AI tools allowed and scored
Tests on a real codebase, not toy problems
Cheating caught without banning AI tools~~~
Custom assessment from a job description in under 2 minutes

Comparison reflects publicly stated capabilities as of May 2026. Each platform has strengths in its market — we built Velocode specifically for modern engineering hiring.

FAQ

Common questions from hiring teams.

How is this different from CodeSignal or HackerRank?
Those platforms test algorithm puzzles. Velocode tests the actual work — across every engineering role, AI to data to security. Every problem comes from a real interview, and your candidates have likely already practiced on the same scoring you'll grade them with.
What if a candidate uses ChatGPT to cheat?
We assume they will — that's the job now. Banning AI tools in 2026 is like banning Google in 2010. We score the parts AI can't fake — how candidates reason through tradeoffs and design real systems. Every paste, tab switch, and timing pattern is logged so you can see what actually happened.
Do you only work for AI engineering hiring?
No. Velocode covers all 5 engineering roles: AI engineer, software engineer, ML engineer, data engineer, and AI security engineer. Each role has its own problem set, tuned to the work that role actually does on the job.
Do candidates know they're using Velocode?
They see your company's branding, not ours. The only mention of Velocode is a small footer credit. We never contact your candidates directly.
How quickly can we run our first assessment?
Under 2 minutes from paste to send-link. Book a call and we'll build the first assessment with you on the call — no prep needed from you.
Where do the questions come from?
Every problem in the library came from a real interview at a working engineering team. We don't write fake questions. New ones are added every week as engineers report what they were asked.
Can we add our own questions?
Yes — on larger plans. We'll co-author them with you, build the model answer using multiple AI models, and add them to your private question pool. They never leak into the public library or other customers' assessments.
Do you connect to our ATS?
Greenhouse, Lever, and Ashby integrate directly — assessment status syncs back to the candidate record automatically. Other ATSes are supported on request.
Where is candidate data stored?
Encrypted at rest in US-East and in transit (TLS 1.3). Submissions kept 90 days by default; configurable down to 30. EU data residency available on request. We don't share or sell candidate data.
What teams are saying

Trusted by engineers and the people hiring them.

★★★★★

While most AI interview prep resources feel fragmented and noisy, Velocode stood out as my comprehensive, one-stop solution.

Utsav Agarwal · CTO, Sharpe.ai
★★★★★

The question bank is genuinely impressive. The exact questions being asked in interviews are there — and the way it scores how you use AI is unlike anything else out there.

Om Lakshkar · Applied AI Engineer, SwiftPitch
★★★★★

Velocode is the only platform I found that actually tests what engineering interviews are testing now.

Rajaneesh P. · Engineering Manager, Vedantu
★★★★★

Most platforms just tell you if your answer was right. Velocode scores how you actually think, how you use AI tools, whether you caught the failure modes, your reasoning. It felt way closer to a real interview signal than a simple right/wrong.

Ananya Kumar · AI Engineer
★★★★★

Velocode fills a gap that no other platform does — it's not just about solving the problem, it's about reasoning through it under pressure, and that's exactly what real AI interviews test. I finally feel like I'm preparing for the right thing.

Jasmaine Khale · Backend Engineer, AI/ML systems

Your next engineering hire starts here.

Pick a time below. We'll build a live assessment for your open role on the call — no prep needed from you.

Or email us directly: hello@velocode.ai