powered by Cumberland Laboratories
powered by Cumberland Laboratories
Know who can actually do the work.
signal is a standardized assessment platform for data science. Verified scores for candidates. Objective screening for hiring teams. No take-home projects. No wasted interviews.
Screen every candidate without burning your team's time
Unlimited invitations. Standardized 200–800 scores. AI-generated candidate profiles with interview prep built in.
Prove what you can do with a score anyone understands
Practice across SQL, Python, ML, and Statistics. Build verified credentials. Share your scores with any employer.
Lots of applicants. One hiring manager. Zero phone screens wasted.
Send every candidate a 30-minute assessment. Get back a score you can compare instantly — no calibration debates, no engineer time spent on screens, no resumes that say "proficient in Python" without proof.
Scores HR already understands
200–800 scale, just like the GRE. No training required. No calibration meetings. Hiring managers and HR read the same number and agree on what it means.
No two tests are the same
Every question is parametrically generated — names, numbers, and data change each time. Thousands of unique tests from hundreds of templates. Candidates can't game it.
Candidates actually take it
30 minutes, not a weekend. No unpaid project work. Candidates keep their scores and can use them elsewhere. It's a credential, not a chore.
SFB puts your hiring manager and recruiter in the same workspace, looking at the same scores, with the same interview questions. No more email chains. No more arguing about resumes.
The Profile Test — detect seniority without reading essays
Three questions. Ten minutes. AI evaluates strategic thinking, communication clarity, and professional maturity — then generates a signal summary and suggested interview questions for your team. You never see the candidate's raw answers. Their ideas stay theirs. You get what you need to run a better interview.
How it works
Create a job
Name the role, attach a req ID. Takes 30 seconds.
Invite candidates
Send DSAT, Profile, or both. Unlimited invitations by email.
Candidates complete it
30–40 minutes total. Mobile-friendly. No scheduling required.
Review scores and profiles
Dashboard shows scores, sub-scores, and AI signal summaries. Interview prep included.
Your skills are worth more than your resume says.
A verified DSAT™ score proves what you can do — in SQL, Python, machine learning, and statistics. Practice until you're ready, certify when you are, and share your score with any employer.
Practice that actually teaches
Unlimited flashcards and quizzes. Every question comes with a detailed explanation of the concept — not just whether you got it right. You're building real skills, not test-taking tricks.
Certified scores you own
Take up to 2 DSATs per day. Your 200–800 score and sub-scores live in your account. Track progress over time. See exactly where you're strong and where to focus.
Share with any employer
One click sends your verified score to any company — whether or not they use signal. Your score becomes a portable credential that follows your career.
Simple. No surprises.
Invited to take a test? Your free account lets you see your score and review your results. Upgrade to signal for Data Scientists anytime to practice, retake, and share scores on your terms.
signal is built by Cumberland Laboratories — a data science research company focused on measurement, assessment, and applied statistics.