Maven Securities Interview Process & Prep
Maven Securities (founded 2011) is a London-headquartered, employee-owned proprietary trading firm running options market making plus discretionary and systematic strategies.
Emerging Talent lists four possible online assessments (numerical, probability, HackerRank coding, Arctic Shores game-based); graduate profile: numerical test, recorded video interview, technical interview, half-day assessment day. Candidates add a mental maths sprint, number and letter sequences, negatively marked probability, and card-based market-making games and Fermi estimates with senior traders. New page, from Maven's pages and public candidate reports. Just interviewed there? Report your questions so we can tighten each stage.
Practice every firm's OA: timed replicas, free game replicas and guides in one place →
The Maven Securities interview funnel
1. Online Assessment
Mental maths + sequences + probability tests; coding or games by track (reported)Maven lists four possible online assessments by programme: numerical, probability, HackerRank coding, Arctic Shores game-based.
Trading candidates consistently report a two-part numerical test (~50 mental maths questions in 5 minutes; ~30 number and letter sequences in 6) and a negatively marked probability test, ~18 multiple-choice questions in 30 minutes. Maven recommends timed Zetamac practice; also try the Flow Traders replica, sequences, expected value.
2. Recorded Video Interview
About 20 minutes, on demand, no live interviewer (per Maven's graduate profile)Maven's graduate profile describes an on-demand video interview, about 20 minutes, on your motivation for Maven. Candidates report recorded questions on interests beyond your studies and why trading; one mentions mental arithmetic like the day of the week some weeks ahead (reported). Prep: behavioral questions, mental math.
3. HR + Technical Interview
About 40 minutes with a trader (per Maven's graduate profile)Maven: about 40 minutes of technical questions on logical and numerical reasoning. Candidates report a short HR element, mental maths with percentages, probability, brainteasers, sometimes a first market-making exercise without pen and paper. One late-2025 intern report: a confidence interval estimate, comparing a large power with a factorial. Practise: probability, estimation facts, Fermi estimation.
4. Assessment Day with Senior Traders
About 4 hours (per Maven's graduate profile); candidates report 1 to 4 hours of interviewsMaven's final assessment day (about four hours): meet the team, show technical ability, logical problem solving and motivation. Reports: in-depth senior trader interviews, card-based market-making and expected value games, timed Fermi estimates, sometimes the probability and mental maths tests again in person, then individual interviews. Try: Make a Market, card table, market-making guide, betting game.
Maven Securities Assessment Day with Senior Traders interview guide →
Maven Securities interview — FAQ
What is the Maven Securities interview process?
Maven Securities (founded 2011) is a London-headquartered, employee-owned proprietary trading firm running options market making plus discretionary and systematic strategies. Emerging Talent lists four possible online assessments (numerical, probability, HackerRank coding, Arctic Shores game-based); graduate profile: numerical test, recorded video interview, technical interview, half-day assessment day. Candidates add a mental maths sprint, number and letter sequences, negatively marked probability, and card-based market-making games and Fermi estimates with senior traders. New page, from Maven's pages and public candidate reports. Just interviewed there? Report your questions so we can tighten each stage. The loop runs 4 stages: Online Assessment, Recorded Video Interview, HR + Technical Interview, Assessment Day with Senior Traders.
How many rounds does Maven Securities have?
4 stages in total, starting with the Online Assessment and ending with the Assessment Day with Senior Traders.
How do I prepare for the Maven Securities interview?
Work the stage notes above, then drill the matching problems and the Maven Securities online-assessment practice — each problem has a full worked solution.
Maven Securities round-by-round guides
- Online assessment
- Recorded Video Interview
- HR + Technical Interview
- Assessment Day with Senior Traders
Maven Securities interview guide: the firm, culture, roles and pay →
Stage guides for every firm: superdays · behavioral questions · market-making games