Tactile surface evocative of a basanite touchstone

The technical layer of the interview, rebuilt for the AI era

Test genuine capability,
not performed competence.

The technical interview is broken. Coding tests have collapsed into a cheating arms race, and the capability that actually matters — engineering effectiveness in an AI-augmented workflow — is not measured anywhere. Basanite is the technical layer rebuilt for the AI era.

Partnered withStripeVC

Hire engineers 3× faster.
Cut mishires in half.
Defend every decision.

Basanite replaces 17 interview hours per hire with one signal-dense session that measures what coding tests can’t: how candidates actually think with AI. Every hire comes with a defensible, evidence-backed report, and a process you can scale up, scale down, or reshape around any role.

For a team hiring 40 engineers a year, that’s £400k+ recovered annually.

The impact

What you get back

01
17 hours

of senior engineering time saved per hire.

Replaces the screening + first technical round.

02
30 days

cut from time-to-hire.

From 10 weeks to 6, on average.

03
£10–15k

in mishire risk avoided, per hire.

46% of new hires fail in 18 months. 89% of those failures are signals coding tests don't measure.

04
1 report

behind every hiring decision.

Eight dimensions, scored on the same rubric, every time. Defensible to your board, your team, and the candidate.

ROI calculator

See your number

1200
£40,000£250,000

→ You’re spending roughly £612,000 on hiring inefficiency every year.

→ Basanite recovers ~£408,000 of that.

Math: Ashby 2026, Leadership IQ, SHRM 2025. See the assumptions →

The four levers

Where the savings come from

01

Time One 30-minute session replaces resume screening, phone screen, and first technical interview. Recruiter and engineer hours collapse by 60–70%.

02

Speed Candidates flow through in days, not weeks. You stop losing offers to faster-moving competitors. Every vacancy day costs £500–1,000 in lost output.

03

Quality 46% of new hires fail within 18 months (Leadership IQ, n=20,000). 89% of those failures come from attitude, coachability, and judgment — exactly what Basanite measures, and exactly what coding tests miss.

04

Defensibility Every candidate gets scored against the same eight-dimension rubric, with the evidence behind each score traceable to the actual interview. One report your hiring manager, your board, and the candidate can all read.

And it bends to your role, not the other way around. Custom dimensions, custom rubrics, custom workbench tasks — for engineering, data, ML, security, or wherever you take it next.

The dimensions

We measure how engineers think with AI

Coding tests assume the candidate works alone. That world is gone. 76% of technical candidates now use AI mid-interview. The question that predicts on-the-job performance has shifted from “can they code without it?” to “how well do they think with it?”

Eight dimensions. One rubric. Defensible scoring.

Problem framingCan they turn a vague brief into a workable spec?
Context handlingDo they give the model what it needs — or hope for the best?
VerificationDo they check the model’s output, or ship it?
IterationWhen the first answer is wrong, what do they do next?
Tool fluencyDo they know which tool fits which subtask?
Judgment under uncertaintyWhen the model is confidently wrong, do they catch it?
CoachabilityCan they take feedback mid-task and adjust?
CommunicationCan they explain what they did and why?

Watch the demo

Four and a half minutes inside Basanite.

The process

How Basanite works

A two-round assessment: a conversational round that reveals what a candidate thinks, and an AI Collaboration Workbench round that reveals what they actually do.

Most hiring tools measure how well someone can approximate a good candidate.
Basanite measures whether they actually are one.

Design philosophy

Assess genuine capability, not performed competence

The central conviction behind every design decision at Basanite: most hiring tools are optimised for the wrong signal. They measure how well someone can approximate the idea of a good candidate, rather than whether they actually are one.

Depth over breadth

Each layer of the assessment exists to move one level deeper into signal quality. A candidate who answers fluently at the surface should encounter ground that shifts beneath them at the next layer. The edges of real ability are blurry. Performed ability has no edges.

Structure as a fairness mechanism

By anchoring every evaluation to consistent frameworks and explicit scoring criteria, a self taught engineer without institutional pedigree can be seen as clearly as one from a target university. Both are asked the same questions, in the same spirit, with the same depth of follow up.

Honest about what AI can and cannot do

Basanite flags where human expertise is required, produces quotable evidence rather than opaque scores, and positions itself as infrastructure that makes human judgment better, not the mechanism that replaces it.

Evaluation as a two way mirror

The best hiring processes leave candidates with a clearer understanding of themselves. Every assessment strategy deployed by Basanite can be honestly explained to the candidate it is applied to.

For hiring teams

Replace the first three rounds

  • One Basanite deployment replaces 1 to 3 full time recruiters doing screening and first round assessment
  • Every candidate receives identical assessment quality. The tenth candidate is evaluated as rigorously as the first
  • Dimension scores grounded in specific candidate quotes, not opaque numbers
  • Hirer report designed as a briefing document: what to probe further in the final human interview
Book a call

For candidates

Be genuinely seen

  • A conversation, not an interrogation. Questions grow organically from your own experience
  • No trick questions, no expected answers. We are looking for how you actually think, not how well you prepared
  • Saying “I don’t know” with genuine awareness is treated differently from a confident but hollow answer
  • You receive a personal feedback report, regardless of outcome
Learn more

The team

Built by people who have felt the problem

Engineers and AI researchers from Manchester, building the hiring tool we wish existed.

Aditya Shah

Aditya Shah

CEO

  • Data Analyst and Technology Modeller at Virgin Media O2 (13 month placement)
  • Serial entrepreneur, previously funded startup in edtech
  • Computer Science, University of Manchester
Drew Robertson

Drew Robertson

CTO

  • SWE Intern at The Trade Desk, Rothschild and Co, Cisco
  • ICHack26 1st place, Bloomberg Bpuzzled 1st place
  • Computer Science, University of Manchester
Lynn Zhao

Lynn Zhao

CPO

  • BSc Artificial Intelligence, University of Manchester
  • AI Safety Fellowship at BlueDot Impact, OpenAI, Cambridge
  • UniHack 2025 Digital CleanUp 1st place
8
metacognitive dimensions
2
rounds: think + do
100%
quote-grounded scores
3
screening rounds replaced

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