
N26
Mobile bank with a full German banking licence, offering current accounts, cards, savings and investing across Europe.
Berlin, Germany
1,000 to 5,000
1,000 to 4,999 peopleNot known
Not known
Not enough signal to say. Check the careers page directly.How they hire
Based on one backend engineering posting; other teams and levels may list different steps.
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Systems design
OfficialSystem designA design interview; the role itself centres on distributed microservices and event-driven architecture.
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What comes up
Recurring themes from candidate accounts, not a question bank. Nobody is served by leaked question lists, least of all you in the interview.
Distributed backend systems
OfficialThe posting asks for Kotlin backend work, microservices with Kafka, AWS, Kubernetes and observability tools, which frames the technical rounds.
Ownership and improving systems
OfficialN26 looks for engineers who take features to production independently, pair criticism with practical proposals and fix broken processes.
Worth reading before you apply
From the Sefism resource library, matched to the rounds above.
A browsable practice library of coding problems that can be filtered by pattern, data structure, difficulty and company, so you can drill exactly the weakness you found this week. Patterns include two pointers, sliding window, hash maps, stacks, backtracking and greedy algorithms, with company filters for Google, Meta, Microsoft, Amazon, Oracle and LinkedIn. Free to browse, with an in-browser editor and solutions.
- Job search
- DSA
A course built around 75 coding interview questions chosen for coverage across 18 topic areas, from arrays and sliding window to graphs, backtracking, dynamic programming and tries. Each question has a step-by-step algorithm, a walkthrough and complexity analysis, with solutions in six languages. It suits candidates with a few weeks before an interview who need a balanced, finite problem set rather than an endless list.
- Job search
- DSA
The second volume of Grokking the System Design Interview, aimed at senior and staff (L5/L6) design rounds. It works through harder case studies such as a payment system, flash sale, notification service, unique ID generator, Gmail, Reddit, Google Calendar and a code judging system, then goes beneath them with patterns like quorum, write-ahead logs and vector clocks and deep dives into Dynamo, Cassandra, Kafka, Chubby, HDFS, GFS and BigTable.
- System design
- Backend
- Job search
The original Grokking system design course, which made the design round learnable. It teaches a repeatable interview approach and the key trade-offs (SQL versus NoSQL, strong versus eventual consistency, REST versus RPC and more), then works through 15 classic designs such as a URL shortener, Instagram, Dropbox, Twitter, YouTube, a rate limiter, a web crawler, Uber and Ticketmaster, each with requirements, estimates and trade-off discussion.
- System design
- Job search
- Backend
The quick-revision companion to the University to job-ready roadmap: OOP, Git and engineering practice, data structures, DBMS, operating systems and networks, then projects, choosing a direction, getting experience and the hiring process. It has editions for first or second year, third year, and final year. Revise a chapter a week alongside your courses and before assessments.
- Career
- Job search
- CS fundamentals
- DSA
A very large site of articles on data structures, algorithms and core CS subjects such as operating systems, DBMS, computer networks and OOP, usually with code in several languages, plus practice problems and paid courses. It is handy for revising a university topic or finding a worked example of a specific algorithm. Quality varies because much is community written, so cross-check anything surprising against a textbook or official documentation.
- DSA
- CS fundamentals
- Databases
What it pays
Nothing collected for this company yet, and nothing worth guessing at. A made-up range is worse than no range because people negotiate against it.
Universities they recruit from
No sourced university links yet. A campus drive, a career fair appearance or an internship partnership is what puts a university here.
How to actually get seen
Brush up on timed coding for the Codility test and be comfortable coding while talking with a partner. Bring examples of shipping features end to end with little supervision.
Sources
- N26 websiteread 2026-09-22
- N26 careers pageread 2026-09-22
- N26 job posting: Backend Engineer, Investments and Savingsread 2026-09-22
Whole profile last checked 2026-09-22.
Interviewed at N26? Fill in what changed.
Processes change, rounds get added, tests get replaced. If what you went through was different from what is on this page, tell me and I will update it.
Want me to refer you here?
Send me the role, your CV and a few honest paragraphs on why you fit it. Where I know someone inside and your profile matches, I will make the introduction. Where I cannot, I will tell you why and point you at the route that does work. You get an answer either way.
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