How Monzo Interviews in 2026: Process, Sample Questions & What They Score

Varies by role, and the backend pages do not describe an application stage. For mobile roles, the application includes written answers on building customer-centric apps, a technical challenge you have faced, and why you are interested in Monzo, plus your CV. The Associate Software Engineer (intern) listing describes short application questions, then an exercise testing programming and problem solving, then final interviews on Google Meet. No duration is stated.

A recruiter learns about you, explains the process, and covers Monzo's mission and how engineers contribute to it. Monzo says the recruiter always shares the outcome or next steps. Both engineering manager listings give this call 30 minutes, and one of them calls it informal. The backend and Senior Staff+ pages give no duration.

A video call with engineers, possibly future teammates (on the mobile guide, an engineer in the same role). You discuss your background and a recent project you had significant input on: implementation details, trade-offs, data structures, language choices, performance, reliability and security, and what you would change in hindsight. No whiteboarding or coding. For Senior Staff+, topics also include leading projects with stakeholders and aligning technical work with company objectives. For engineering managers, this hour is led by a Senior Engineering Manager or Engineering Director and uses example-based questions on people leadership, product delivery and technical leadership.

Backend take-home: implement a small program in your own IDE and language, with a README covering structure, setup and trade-offs, then walk reviewers through your code on a task review call. The current backend page gives no time limit. A 2022 first-person account on Monzo's blog says there was no time limit, that the author spent a few hours on it, and that about two weeks passed in elapsed time because of other take-homes. Backend pair coding: implement functions against a provided interface with a Monzo engineer, in languages such as Go, Python or Java. Mobile take-home: strictly timeboxed to 4 hours with no submission deadline, inside an existing Android or iOS codebase, followed by a 45 minute review call. Mobile pair coding: 1 hour. For Senior Staff+, Monzo describes about one hour of pairing in Go, Java or Python and says the take-home is the option if you cannot pair in those languages. Monzo says pair coding is not LeetCode style and not a speed test, and documentation lookups are allowed. Monzo's AI guide says there is no blanket ban on AI for take-home tasks, but the test is whether you refine your own work rather than replace it, and it advises asking your recruiter.

The official backend page gives the pair coding session as both 45 minutes and an hour. Third-party guides (TechPrep, Final Round AI) claim a 3 to 4 hour take-home or a 90 minute pairing session, which official pages do not confirm.

Backend: design a scalable, reliable, fault-tolerant system for a hypothetical, non-Monzo problem in a collaborative sketching tool such as Excalidraw. The interviewer may add new information that forces changes, and trade-offs in performance, consistency and availability are assessed. Mobile: two mobile engineers give you a UI design and requirements, and you produce an end-to-end implementation blueprint. Engineering managers: a collaborative whiteboarding session with a Staff or Principal Engineer. The author of a 2022 first-person post on Monzo's blog called it the hardest interview of their life.

Order differs by track: the mobile guide lists the behavioural interview before systems design, while the backend page puts systems design first. One mirrored Principal listing puts system design before the practical stage.

A video call with two interviewers, engineers or engineering managers who may come from any part of the business. It covers four areas: communication, learning, working in a team and delivering projects. Monzo's tips ask you to explain your stakeholders and how alignment was maintained. For engineering managers, the loop instead has three 60 minute interviews over 1 to 2 days (Team and Org Management, System Design, Behavioural) plus a 30 minute chat with an engineering leader. Senior Staff+ adds a separate final Impact and Leadership interview, with no stated duration.

No duration is stated. On the backend page, interviewer feedback is reviewed together, and a Hiring Committee makes the offer decision, helps spot bias and checks alignment on values and behaviours. The Senior and Staff Backend Engineer listings say the final match uses your skills, experience, preferences and business need. The engineering manager listing says applications are considered across all open EM roles and you are matched to a role. Senior Staff+ uses a structured debrief of all interviewers in place of a formal hiring committee. The mobile guide only says feedback is reviewed and successful candidates receive an offer.