Affirm interview questions

Showing 1–28 of 28 results

• Aggregate loans and match repaymentsMedium

  Implement a transaction matching engine that aggregates user loans and allocates repayments chronologically to outstanding balances using a FIFO waterfall approach.

  AffirmSoftware EngineerCoding & AlgorithmsTechnical Screen
• Analyze Loan Payments Using Pandas for Key InsightsMedium

  This question evaluates data manipulation and aggregation skills using pandas, focusing on computing per-loan payment totals, payment success rates, and a repayment-status flag. It is commonly asked to assess applied data wrangling and numeric summarization abilities in the Data Manipulation (SQL/Python) domain, testing practical application rather than purely conceptual understanding.

  AffirmData ScientistData Manipulation (SQL/Python)Technical Screen
• Analyze Returning Borrowers Across Two Days of LogsMedium

  Process two daily loan activity logs to identify users active on both days with diverse loan types, then score them using a configurable trust policy.

  AffirmSoftware EngineerData Manipulation (SQL/Python)Technical Screen
• Calculate Profit of 4-Month Loan at 30% APREasy

  This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Calculate Profit of 4-Month Loan at 30% APR states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  AffirmData ScientistAnalytics & ExperimentationTechnical Screen
• Choose the Next Product or Vertical for a Lending BusinessMedium

  Compare lending product and vertical investments using demand, contribution economics, credit risk, execution capacity, scenarios, and bounded pilots.

  AffirmData AnalystProduct / Decision MakingTechnical Screen
• Compute Balances and Minimize SettlementsHard

  Tests transaction aggregation into net balances and combinatorial optimization (backtracking/bitmask DP) to find the minimum number of settlement transfers needed to clear all debts.

  AffirmSoftware EngineerCoding & AlgorithmsOnsite
• Connect Analyst Experience, Delivered Insights, and Your Next RoleMedium

  Practice connecting relevant analyst work, a concrete delivered insight and the responsibilities you want in a credit-risk role.

  AffirmData AnalystBehavioral & LeadershipTechnical Screen
• Describe Feedback from a Manager and How You Acted on ItMedium

  This question assesses your self-awareness, coachability, and ability to translate constructive criticism into measurable professional growth.

  AffirmSoftware EngineerBehavioral & LeadershipHR Screen
• Describe a Mentoring Experience and Its OutcomeMedium

  This question evaluates your capacity for long-term technical mentorship, specifically focusing on your ability to adjust your teaching style, foster autonomy in others, and maintain professional boundaries regarding credit.

  AffirmSoftware EngineerBehavioral & LeadershipHR Screen
• Describe your highest-impact projectMedium

  This question evaluates leadership, ownership, impact measurement, cross-functional collaboration, and technical decision-making competencies by asking for a concrete example of a high-impact project.

  AffirmSoftware EngineerBehavioral & LeadershipTechnical Screen
• Design Installment-Loan Payment ProcessingMedium

  Design installment-loan payment processing around a bank debit API available during one daily one-hour window. Unify manual and scheduled intents, prevent duplicate debits with durable idempotency and state transitions, reconcile unknown outcomes, apply accounting atomically, and notify through an outbox.

  AffirmSoftware EngineerSystem DesignTechnical Screen
• Design a High-Card Game with a Persistent Tie PotEasy

  Design a high-card game in which tied rounds carry a persistent pot into later rounds, first for two players and then for many. Define card ownership, tie and exhaustion policies, deterministic shuffling, termination rules, extensible classes, and tests for tricky state transitions.

  AffirmSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design a Ticketmaster-like ticketing systemEasy

  This question tests your ability to design a high-concurrency booking system, focusing on preventing double-bookings, managing seat holds, and ensuring system availability during high-traffic events.

  AffirmSoftware EngineerSystem DesignOnsite
• Design an A/B Testing PlatformHard

  Design a high-scale, low-latency experimentation and A/B testing platform capable of deterministic user bucketing, high-throughput exposure and metric ingestion, and automated statistical reporting.

  AffirmSoftware EngineerSystem DesignOnsite
• Detect fraud events and extract PIIMedium

  This problem tests your ability to process nested JSON-like structures, perform deduplication, and map related entities to detect fraudulent patterns.

  AffirmSoftware EngineerCoding & AlgorithmsTechnical Screen
• Determine Redeemable Promotion OffersMedium

  This problem tests your ability to manage stateful constraints by processing a stream of promotional event logs to determine if a user remains eligible for a discount based on a per-user, per-promotion usage limit.

  AffirmSoftware EngineerCoding & AlgorithmsTechnical Screen
• Diagnose Sudden Drop in Credit-Card Approval RateMedium

  This interview question evaluates metric design, causal reasoning, experiment setup, diagnostics, SQL/statistical checks, and recommendations in a realistic interview setting. A strong answer for Diagnose Sudden Drop in Credit-Card Approval Rate states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  AffirmData ScientistAnalytics & ExperimentationTechnical Screen
• Discuss team fit and leadership with managerMedium

  Discuss team fit and leadership with manager evaluates behavioral evidence, ownership, communication, trade-offs, and measurable outcomes in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  AffirmSoftware EngineerBehavioral & LeadershipOnsite
• Explain Why This Company and Role Interest YouMedium

  This question assesses the candidate's research into the company's business model (BNPL), their alignment with financial technology values, and their ability to articulate a clear value proposition for the engineering role.

  AffirmSoftware EngineerBehavioral & LeadershipHR Screen
• Explain Your Role Motivation, Technical Fit, and Engineering LeadershipMedium

  This prompt evaluates your ability to deliver a clear, structured narrative during an initial recruiter screen, connecting your technical background, reasons for moving, and fintech/platform motivation to a concrete leadership achievement.

  AffirmSoftware EngineerBehavioral & LeadershipHR Screen
• Find shortest unique substring per wordMedium

  This problem tests your ability to manipulate string data structures (like Tries or Suffix Trees) to efficiently identify the shortest, lexicographically smallest substring that is unique to a given word within a provided collection.

  AffirmSoftware EngineerCoding & AlgorithmsTechnical Screen
• Hiring Manager Behavioral Interview: Challenging Project, Deadlines, Cross-Team WorkMedium

  A hiring manager asks you to introduce yourself, describe a challenging project, explain why you want to join Affirm, and discuss delivering under a tight timeline, working across teams and finding where a system needs improvement. It tests structured, evidence-based behavioral answers and engineering judgment.

  AffirmSoftware EngineerBehavioral & LeadershipTechnical Screen
• Implement an LRU cacheEasy

  This question tests the ability to combine a hash map and a doubly linked list to achieve constant-time performance for both data retrieval and update operations in a cache.

  AffirmSoftware EngineerCoding & AlgorithmsOnsite
• Implement and debug event filtering in PythonMedium

  This question evaluates proficiency in data manipulation and algorithmic reasoning in Python, covering event filtering, stable sorting, deduplication by identifier, timestamp windowing, and analysis of time and space complexity.

  AffirmSoftware EngineerData Manipulation (SQL/Python)Onsite
• Investigate Rising Loan Delinquency with Stable Approval RatesMedium

  Diagnose rising 30-day loan delinquency, separate borrower-mix shifts from model drift, and evaluate merchant underwriting changes.

  AffirmData AnalystAnalytics & ExperimentationTechnical Screen
• Investigate a Quarterly Increase in Loan DelinquencyMedium

  Investigate rising delinquency through rate definitions, reporting checks, loan vintages, seasoning, portfolio mix, and within-segment deterioration.

  AffirmData AnalystAnalytics & ExperimentationTechnical Screen
• Present a Relevant Analytics Project to a Hiring ManagerMedium

  This question tests your ability to structure a past data project using the STAR method, with a specific focus on technical rigor, business logic, and self-reflection.

  AffirmData AnalystBehavioral & LeadershipTechnical Screen
• Simulate a High-Card Deck Game for Two Players, Then N PlayersHard

  Model a shuffled 52-card game in which each round the higher top card wins both cards, then report the player with the most cards won. Starts with two players and generalizes to N players with uneven round-robin dealing, testing object design, rule clarification, and deterministic tests.

  AffirmSoftware EngineerSoftware Engineering FundamentalsTechnical Screen