Optiver runs its own platform — this is the load-bearing fact
Official sourceOptiver’s Europe recruitment FAQ names the "Optiver Assessment Platform" and describes its own one-time-code and authenticator-app login flow. We fetched the portal itself: assessment-portal.optiver.com returns HTTP 200, is titled "Optiver Assessment Portal", and authenticates through optiver.okta.com and sts.optiver.com on Optiver-controlled AWS infrastructure. A search of the whole page for SHL, Aon, cut-e, pymetrics, Arctic Shores, HireVue, Criteria, Revelian, Talent Q, Mettl and Codility returned nothing. Candidates in forums refer to it as the OAP.
Source: Optiver Assessment Portal (live login page, fetched HTTP 200)
Who wrote the games inside it is not public
Estimate / inferenceThe portal is unambiguously Optiver-hosted and Optiver-authenticated, and no vendor fingerprint appears in it. That is not the same as proof that Optiver built the exercises itself — a white-labelled engine served inside Optiver’s own portal cannot be ruled out from the outside, and Optiver has never said whether the battery is built in-house or licensed. What you can rely on is the platform, not the authorship.
Source: Optiver Assessment Portal fetch, reviewed 11 September 2026
HackerRank is the only vendor Optiver names, and only for coding
Official sourceThe Sydney campus FAQ states: "You can complete the Software HackerRank assessment in C++, Java and Python", and for hardware roles, "The FPGA HackerRank assessment will probe your understanding of Digital Circuit Design, FPGAs and a bit of hardware code comprehension - code snippets are given in both VHDL and Verilog." These are timed coding rounds for Software and FPGA roles, not games, and not a general stage every applicant sees.
Source: Optiver Sydney campus recruiting FAQs
One attempt every eight months, across every office and role
Official sourceOptiver Europe: "assessments can only be completed once every 8 months. If you have already completed the tests for a similar role within this period, your previous results will automatically be used and you will not receive a new assessment invitation." Sydney adds that this applies "across all offices and roles" — which is why you may log in and find assessments already marked complete the day you were invited. Optiver will not undo it: "to ensure a fair and consistent recruitment process for all candidates, we’re unable to offer assessment resets or retakes within 8 months once an attempt has been started." US postings repeat the bar: if you completed an online assessment or interviewed for a quantitative graduate or internship role at any Optiver location in the past eight months, you are not yet eligible to reapply.
Source: Applying to Optiver Europe: Recruitment FAQ; Optiver Sydney campus recruiting FAQs
No calculators
Official sourceOptiver states plainly: "To effectively evaluate your skills, the use of calculators is not permitted during our assessment." Practice your mental arithmetic on paper or in your head, not with a calculator to hand — the gap between the two is larger than most people expect under a clock.
Source: Optiver Sydney campus recruiting FAQs
The invitation takes 24 to 48 hours — check spam
Official sourceOptiver Sydney: "It can take 24-48 hours for the assessment to appear in your inbox." Check promotions and spam folders before assuming something went wrong. You log in with a one-time code sent to your email, or through an authenticator app you set up yourself, so have a phone to hand at the start.
Source: Optiver Sydney campus recruiting FAQs
Optiver has never published what is inside the assessment
Official sourceWe checked its official recruitment FAQs for Europe, Sydney and the US, its careers hub, its job postings and its recruitment-events pages. None names a section, a game, a question count or a cut score. Optiver’s own US Q&A tells candidates to ask its recruiters rather than trust third-party descriptions of its process. Every section name circulating online is therefore candidate terminology, and should be read as a rough indication of format rather than a syllabus.
Source: Optiver US campus recruiting Q&A; official FAQ pages reviewed 11 September 2026
No pass mark exists publicly — ignore the numbers you have read
No evidence foundOptiver publishes no cut score for any section. Prep sites quote pass marks in the mid-50s and competitive scores around 70 on the reported mental-arithmetic section, but they cite no source and disagree with each other — including on the basic question of whether skipped questions are penalised. One prep site’s own text says "A passing score is higher than 55, but you’ll want to achieve around 70 or above", which is already inconsistent with the figure most often repeated elsewhere. The only official rule about that section is that calculators are not permitted.
Source: JobTestPrep, The Optiver Test (prep site; unsourced, internally inconsistent)
Optiver’s only official preparation advice
Official source"Our interview process is meant to assess your ability to problem solve and use logic and reasoning in different formats. You do not need any prior trading knowledge to be successful in our interview process. However, it may be helpful to practice activities that involve quick problem-solving skills, such as mental math and strategy games." Optiver also frames mental math as necessary but not sufficient: "Being good at mental math is necessary but insufficient to thrive as a Trader at Optiver. In addition to quantitative skills, you also need to be a quick decision-maker and stay cool under pressure."
Source: Optiver US campus recruiting Q&A
One campus role at a time
Official sourceOptiver US: "You will only be considered for one campus role at a time, so please apply to your top preference. Once you have completed the process for one campus role, you may then apply for a different role." Sydney says the same and asks candidates who applied to the wrong role to email careers@optiver.com.au rather than reapply online. Combined with the eight-month rule, this means the order in which you apply to Optiver roles genuinely matters.
Source: Optiver US campus recruiting Q&A
No SHL, no pymetrics, no Arctic Shores, no Aon, no HireVue, no Criteria
No evidence foundThe widely repeated claim that Optiver uses SHL traces to prep sites that cite nothing — one asserts "One of the assessments that Optiver applicants are required to take is the SHL test" with no official source, no candidate report, and no role, region or cycle attached — plus one hearsay line in a crowd-sourced list about percentile cutoffs. Nothing places pymetrics, Arctic Shores, Aon or cut-e, Criteria or Revelian at Optiver either, and no source anywhere reports a one-way or on-demand video interview: Optiver describes its final rounds as live virtual interviews with the hiring team. The portal fetch contains none of these vendors.
Source: Optiver Assessment Portal fetch; targeted vendor checks across official, candidate and prep sources, 11 September 2026
No individual feedback, and no regional vendor variation found
Official sourceOptiver does not give individual feedback on applications or assessments, citing application volume. On regions: Optiver names Mumbai, Singapore, Shanghai, Taipei, Hong Kong and London as offices, but no region-specific assessment evidence was found for any of them, and the Sydney FAQ’s "across all offices and roles" wording points to one shared battery rather than local variants. No evidence of any separate regional drive with a different provider exists.
Source: Optiver US campus recruiting Q&A; Applying to Optiver Europe: Recruitment FAQ