Stripe interview questions

Showing 61–90 of 139 results

• Evaluate Ordered Access-Control RulesMedium

  Implement an access-control evaluator that parses rule strings with conditions and returns the first matching decision (ACCEPT or BLOCK).

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Evaluate Stripe Capital Lending StrategyMedium

  This question evaluates data science competencies in product analytics, credit risk modeling, monitoring and instrumentation for a merchant lending product, including dashboard metric design, early-warning signal engineering, offer-structuring trade-offs, and portfolio-level profit attribution.

  StripeData ScientistAnalytics & ExperimentationOnsite
• Evaluate Stripe Capital Loan PerformanceMedium

  This question evaluates a data analyst's competency in product analytics, metric design, cohort and segment analysis, and causal inference for a working-capital loan product.

  StripeData AnalystAnalytics & ExperimentationTechnical Screen
• Evaluate a new product with experimentationHard

  This question evaluates experimental design and causal inference skills, including defining an Overall Evaluation Criterion (OEC) and guardrail metrics, selecting an appropriate test design and ramp/power strategy, specifying quasi-experimental fallbacks, and performing metric diagnostics for a recommendation module in a commerce app.

  StripeData ScientistAnalytics & ExperimentationTechnical Screen
• Explain your tech stack choicesEasy

  This question evaluates a candidate's ability to articulate technology selection, operational experience, and trade-off reasoning across languages, frameworks, services, data stores, and infrastructure.

  StripeSoftware EngineerBehavioral & LeadershipHR Screen
• Find Live Hand-Off Windows Between Follow-the-Sun Support TeamsHard

  Find recurring weekly windows where at least two regional support teams are simultaneously online, after converting each team's local shift schedule to a shared UTC timeline and handling the week's wraparound, then filter by a lead time, a minimum overlap length and a results cap. Tests interval sweeping, time-zone arithmetic and turning a loosely specified brief into exact rules.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnline Assessment
• Find Weekly Deployment Windows Across Time ZonesHard

  Determine the first k non-overlapping deployment windows across a 3-week search horizon by mapping weekly recurring local allow and freeze rules into a repeating UTC timeline.

  StripeSoftware EngineerCoding & AlgorithmsOnline Assessment
• Find deployable slots in a recurring week from allowed and freeze windowsMedium

  A coding exercise on a recurring 10,080-minute week: combine allowed and freeze deployment windows into deployable slots, then add per-window time-zone offsets, the current time, a lead time, a minimum slot length and a cap of k results. It tests interval merging and subtraction, wrap-around at the week boundary and careful edge-case handling.

  StripeSoftware EngineerCoding & AlgorithmsOnsite
• Find linked merchants by shared fieldsMedium

  This question tests the ability to model entity relationships using a graph representation and implement a traversal algorithm to identify connected components based on shared identity fields.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Find linked user records by similarityMedium

  This question evaluates the ability to compute weighted field-based similarity and reason about adjacency relationships in an undirected graph, testing competencies in similarity scoring, record linkage, and basic graph traversal.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Find linked user records by weighted similarityMedium

  This problem tests your ability to model relationships as a graph and compute connected components based on weighted similarity scores between user records.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• First-Match Login Policy Engine with a Boolean Expression DSLMedium

  Implement an ordered allow/deny policy evaluator for sign-in attempts whose conditions grow from symmetric string equality to boolean flags, and/or precedence, parentheses, not and !=. Tests tokenizing quoted literals, recursive-descent parsing, first-match semantics, and missing-field handling.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnsite
• Fix Seekable POST Body Replay After a 307 Redirect in Python requestsMedium

  A debugging exercise in the Python requests library: POST requests whose body is a seekable stream time out after an HTTP 307 redirect, while a plain string body works. It tests tracing how request state changes between the first send and the redirect, and fixing the library so that streams the caller has already partly read are resent correctly.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnsite
• Fix Three Mako Template Bugs: AST Arg Visitor, Directory Lookup, Comment-Only BlocksHard

  A debugging exercise on Mako, the open-source Python template library, with three injected defects: an AST visitor missing its visit_arg method, a template lookup that fails on a directory path, and comment-only control blocks that do not compile. It tests NodeVisitor dispatch, reading generated code, minimal fixes and regression tests.

  StripeSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Fix Three Planted Bugs in a Tiny Python Template EngineMedium

  Trace three reported failures in a small template engine to their root causes (a greedy regex, a nesting-unaware block parser and a path-traversal hole), fix each minimally and add regression tests. Tests systematic debugging across tokenizer, parser and loader layers.

  StripeSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Fix an HTTP Client That Loses a Stream Body on Redirect ReplayMedium

  Debug a small HTTP client library where POST requests with a plain string body replay correctly after a redirect, but requests with a file-like stream body hang, and fix the library so a redirect resends the exact original bytes, including bytes from a stream the caller had already partly consumed.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnsite
• Generate Available 30-Minute Time SlotsHard

  This problem tests your ability to manipulate time intervals, handle recurring weekly schedules, and perform intersection logic between availability windows and existing booked appointments.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Generate a ride map image via POST APIMedium

  Implement a payload builder for an external static map generation API that processes raw ride GPS telemetry, downsamples points, generates bounding viewports, and formats marker overlays.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnsite
• Ground Station Registry With Great-Circle Nearest-Online RoutingMedium

  Build an in-memory registry of satellite ground stations with status tracking, implement the haversine great-circle distance formula, then route an uplink request to the nearest online station. Tests clean API design, careful spherical math, and corner-case handling under time pressure.

  StripeSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• How Should Stripe Capital Be Evaluated?Medium

  This problem tests your ability to design a performance measurement framework for a lending product, focusing on balancing merchant growth with credit risk.

  StripeData ScientistAnalytics & ExperimentationOnsite
• How to find the cheapest flight within K stopsMedium

  This problem tests your ability to find the shortest path in a weighted graph under a specific constraint on the number of edges (stops).

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• How to settle multi-person debts in minimum transactionsMedium

  Tests algorithm design and combinatorial search to settle multi-party debts with the minimum number of transfer transactions.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Hunt Three Planted Bugs in a Small Template Compiler Called WickMedium

  Trace three reported failures in a small Python template compiler — a dropped ternary else-branch, a directory mistaken for a template file, and a comment-only loop body that compiles to invalid source — to their root causes and fix each with a regression test.

  StripeSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Implement Billing Coding ExercisesMedium

  Implement a subscription proration and billing reconciliation engine that generates line items across plan changes and computes the outstanding balance against posted payments.

  StripeSoftware EngineerCoding & AlgorithmsOnsite
• Implement JSON parsing and HTTP integration tasksMedium

  Tests practical software engineering skills in parsing JSON data, constructing batch HTTP requests, mapping returned attributes (such as color codes to coordinate points), and handling API errors.

  StripeSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement Validation and String CompressionHard

  This problem tests your ability to design a custom parser and recursive string processor that handles nested patterns while enforcing strict input validation.

  StripeSoftware EngineerCoding & AlgorithmsOnsite
• Implement a Contribution Ledger With Per-Rail Settlement DelaysHard

  Implement process_ledger(commands), an ordered ledger for a community funding platform where contributions arrive over different payment rails, each with its own settlement delay, cutoff time, and per-window contribution limit.

  StripeSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Implement a Datacenter Request RouterMedium

  This problem tests the ability to manage stateful datacenter metadata and implement a routing algorithm that prioritizes proximity (Haversine distance) while respecting capacity constraints.

  StripeSoftware EngineerCoding & AlgorithmsOnline Assessment
• Implement a multi-step form in ReactMedium

  This question evaluates a candidate's competence in React front-end development, including component state management, multi-step form validation, UI state control during asynchronous submissions, and error handling.

  StripeSoftware EngineerSoftware Engineering FundamentalsOnsite
• Implement bitmap font render/compress/invertMedium

  This problem tests your ability to manipulate 2D bit arrays, implement Run-Length Encoding (RLE) for data compression, and perform grid-based coordinate transformations.

  StripeSoftware EngineerCoding & AlgorithmsOnline Assessment