Akuna Capital interview questions

Showing 1–26 of 26 results

• Answer SQL MCQs with reasoningMedium

  This question evaluates proficiency in SQL query semantics and reasoning about relational operations—specifically INNER, LEFT, and RIGHT JOIN behavior; GROUP BY and HAVING usage; NULL handling in comparisons and aggregates; window functions such as ROW_NUMBER and RANK; and the logical query processing order—within the Data Manipulation (SQL/Python) domain. It is commonly asked to assess the ability to interpret and justify query outcomes versus alternative answers, testing both conceptual understanding of relational theory and practical application of SQL query behavior.

  Akuna CapitalSoftware EngineerData Manipulation (SQL/Python)Online Assessment
• Choose Between Python, Java, and C++ for a ServiceHard

  This question tests your understanding of language-level performance characteristics, memory management, and development velocity trade-offs in a distributed systems context.

  Akuna CapitalSoftware EngineerSoftware Engineering FundamentalsHR Screen
• Compute Graph Spread and Portfolio TradesMedium

  This problem tests graph traversal (connected components) and hash-map manipulation to calculate net delta changes in portfolio assets within identified groups.

  Akuna CapitalData EngineerCoding & AlgorithmsOnline Assessment
• Compute max profit across dated stock quotesMedium

  This question evaluates a candidate's ability to reason about time-series and transaction-constrained optimization, including handling unsorted inputs, duplicate records, and constructing an explicit sequence of trades under ordering and no-short-selling constraints.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Compute min operations to transform integersMedium

  This question evaluates algorithmic problem-solving skills related to integer transformations and reasoning about sequences of allowed operations, focusing on optimizing the number of steps. It is commonly used in the Coding & Algorithms domain to assess practical application of algorithmic thinking and time-complexity analysis, testing efficiency reasoning rather than purely conceptual knowledge.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Count subarrays equal to targetMedium

  This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Count subarrays equal to target states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalData ScientistCoding & AlgorithmsTechnical Screen
• Design a Tiered Expiring Item StoreHard

  Design a multi-tiered in-memory item store that enforces tier capacity limits, dynamic expiration, and deterministic retrieval using dual heaps and lazy cleanup.

  Akuna CapitalSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Design an order-matching engineHard

  This question evaluates a candidate's ability to design a high-throughput, low-latency in-memory limit order-matching engine, testing competencies in data structure selection, algorithmic complexity, deterministic concurrency, API design, and handling domain-specific constraints such as self-trade prevention.

  Akuna CapitalSoftware EngineerSystem DesignTechnical Screen
• Design two-user communications handler with exceptionsMedium

  This question evaluates object-oriented design, state management, and custom exception handling skills for enforcing a single active communication pair and related invariants between two users.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsHR Screen
• Design user communication functionsEasy

  This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Design user communication functions states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalSoftware EngineerSystem DesignOnline Assessment
• Evaluate SQL expressions for zeroMedium

  This question evaluates understanding of SQL type coercion, boolean semantics, comparison operators, and dialect-specific evaluation behavior (for example, MySQL), focusing on interpreting expressions that may evaluate to zero.

  Akuna CapitalSoftware EngineerData Manipulation (SQL/Python)Online Assessment
• Evaluate a Hexadecimal Bitwise ANDMedium

  Tests understanding of bitwise operations, hexadecimal-to-binary mapping, and manual nibble-level alignment without relying on arbitrary-precision integer conversions.

  Akuna CapitalSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Find minimum swaps to sort array with duplicatesHard

  This question evaluates array manipulation and permutation-based reasoning for minimizing swap operations, including handling of duplicate values and performance considerations, within the Coding & Algorithms domain for a Data Scientist role.

  Akuna CapitalData ScientistCoding & AlgorithmsOnline Assessment
• Find the Maximum Value in a Binary Tree RecursivelyMedium

  Implement a recursive binary tree traversal to find the maximum integer value in a tree, with careful handling of pointer safety, sentinel values, and edge cases like all-negative nodes.

  Akuna CapitalSoftware EngineerSoftware Engineering FundamentalsTechnical Screen
• Fix and harden an object poolHard

  This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Fix and harden an object pool states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalSoftware EngineerSystem DesignOnline Assessment
• Heapify an array into a max-heapMedium

  This question evaluates understanding of heap data structures and the in-place bottom-up heapify algorithm for building a max-heap on a 0-indexed array, testing skills in array manipulation, heap invariants, and algorithmic reasoning.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Implement React check-in/out month dropdownsMedium

  This question evaluates front-end React skills including controlled components, state synchronization, interdependent input validation, keyboard accessibility/ARIA, and unit testing for UI behavior, and it sits in the Front-end/UI development domain (Other/Miscellaneous) with an emphasis on practical implementation rather than purely conceptual reasoning. It is commonly asked because interviewers use it to verify an engineer's ability to enforce input constraints, integrate dropdowns with existing form state and submission flows, maintain accessibility with native controls, and provide test coverage for validation and disabled-option behavior.

  Akuna CapitalSoftware EngineerSoftware Engineering FundamentalsHR Screen
• Implement a ring bufferMedium

  This question evaluates implementation skills for fixed-capacity circular buffers and competency in array-based data structures, including O(1) push/pop/peek/isEmpty/isFull/size operations and logical-order iteration.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsTechnical Screen
• Implement a two-user communications handlerMedium

  This question evaluates skills in stateful resource management, API and abstraction design, custom exception handling, and input validation for enforcing a single-active connection between two users.

  Akuna CapitalSoftware EngineerSystem DesignOnline Assessment
• Maximize Distinct Values with Cross-Array SwapsHard

  This problem tests greedy strategy optimization and frequency counting to maximize the count of unique elements across two arrays after a limited number of swaps.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsTechnical Screen
• Maximize profitable pairsMedium

  This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Maximize profitable pairs states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalData ScientistCoding & AlgorithmsTechnical Screen
• Minimum Movement Cost to Segregate Binary DigitsHard

  This problem tests greedy algorithm design and sequence optimization by calculating the cumulative distance required to shift all '1's to the end of a binary string.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsTechnical Screen
• Solve swaps, graph paths, and movie DPMedium

  This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Solve swaps, graph paths, and movie DP states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Solve three C++ algorithmic tasksMedium

  This interview question evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer for Solve three C++ algorithmic tasks states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Trace code and find frequent characterMedium

  Trace code and find frequent character evaluates algorithm design, data structures, correctness, complexity, edge cases, and implementation details in a realistic interview setting. A strong answer states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

  Akuna CapitalSoftware EngineerCoding & AlgorithmsOnline Assessment
• Write February Resource Usage QueryMedium

  This question tests the ability to join multiple tables, handle date filtering with range conditions, and perform grouped aggregations to calculate average metrics across different resource categories.

  Akuna CapitalData EngineerSoftware Engineering FundamentalsOnline Assessment