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Public sector & infrastructureGraduate management programme

Serco Graduate Assessment Practice

Serco — UK graduate management programme (published virtual assessment design). Candidates for this track are commonly reported to sit an online assessment delivered by Aon (formerly cut-e) as an early screening step.

Start a free practice test →Get the Serco Graduate Prep Pack — $49

Why Serco uses Aon

Aon assessments are short, adaptive and strictly timed. Your score is compared with a norm group, so knowing the question formats in advance is one of the easiest ways to improve your result.

Also known as cut-e, Aon online assessment. Last reviewed 2026-09-23.

The Serco hiring process

  1. 1Online application
  2. 2Aon online assessmentThis is the stage we prepare you for.
  3. 3Video or phone interview
  4. 4Final interview or group exercise
  5. 5Offer

Practice the Aon tests in the Serco Online Assessment

Realistic simulations of the Aon formats Serco uses — same question styles, same timers, instant scoring. Every test starts with a free 10-question preview.

  • ADEPT-15® Work-Related BehaviourFree preview
    In your assessment as: ADEPT-15· Commonly confirmed
    Start free preview →
  • Applied NumeracyFree preview
    In your assessment as: digitChallenge· Commonly confirmed
    Start free preview →
  • Gamified Situational JudgmentFree preview
    In your assessment as: chatAssess· Commonly confirmed
    Start free preview →

Serco Graduate Prep Pack

Go beyond the free previews: full-length simulations of every Aon test above, timed like the real thing, with worked solutions and score tracking so you know you are ready.

  • ADEPT-15® Work-Related Behaviour~30 min · 100 statements
  • Applied Numeracy6 min
  • Gamified Situational Judgment20 min
Unlock the Serco Graduate Prep Pack — $49One-time payment · lifetime access to all practice tests

Tips for the Serco assessment

  • Do every module in one quiet session with a stable internet connection — most tests cannot be paused.
  • Speed matters but accuracy matters more: wrong answers usually cost you, skipped ones do not.
  • Practise each format at least twice so the instructions feel familiar before the real test.
  • Check your invitation email for the exact modules — batteries change between hiring waves.

Frequently asked questions

Does Serco use the Aon assessment?

Public sources and candidate reports commonly link this Serco hiring track to Aon (cut-e). Always confirm in your invitation email.

Which tests are in the Serco assessment?

Commonly reported modules: ADEPT-15, digitChallenge, chatAssess. The exact mix can differ per country and hiring wave.

How can I prepare?

Start with the free previews of the matching tests below, then use the Serco Graduate Prep Pack for full-length timed practice.

Anything specific to know?

Employer News interview with Serco talent leaders documents Aon's Assessment Solutions stack (ApplyGo ATS, personality, gamified ability, bespoke SJT) for graduate programme. Current defence graduate ads describe situational/logical online steps without naming vendor — may reflect programme refresh.

Other public sector & infrastructure employers

Sources

  • careers.serco.com — Current defence graduate programmes — online stages referenced generically on postings.
  • employernews.co.uk — Serco leaders describe Aon Assessment Solutions graduate pipeline with three online tests.
  • aptitudetests.org — Listed under companies using Aon (cut-e) tests on aptitudeTests.org. Lead only — program and modules not verified.

Last verified 2026-09-23.

Independent practice resource. Not affiliated with Aon plc or the named employer. Assessment batteries can change by hiring wave — confirm against your invitation email.