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Akuna Capital Software Engineer Interview Guide 2026

This guide covers the Akuna Capital Software Engineer interview loop, detailing round formats, interviewer priorities, track-specific preparation for......

Topics: Akuna Capital, Software Engineer, interview guide, interview preparation, Akuna Capital interview

Author: PracHub

Published: 3/21/2026

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Akuna Capital Software Engineer Interview Guide 2026

This guide covers the Akuna Capital Software Engineer interview loop, detailing round formats, interviewer priorities, track-specific preparation for......

4 min readUpdated Jul 1, 202619+ practice questions
19+
Practice Questions
3
Rounds
4
Categories
4 min
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Contents
TL;DRSample QuestionsAbout the Interview ProcessWho this guide is forWhat to expectInterview roundsOnline assessmentTechnical screen or live codingSystem designBehavioral or fit interviewFinal round or onsiteRound-by-round cheat sheetWhat they testHow to stand outExample: narrating a coding problemExample: a "why Akuna" answerA 2-week prep sketchHow to Use This Page as a Prep PlanVideo WalkthroughFAQDoes Akuna Capital ask LeetCode-style questions?Is the interview different for C++ versus Python roles?How hard is the Akuna Capital online assessment?Should I prepare system design even for a coding-heavy role?How should I answer "why Akuna" or "why trading-tech"?
Practice Questions
19+ Akuna Capital questions
Akuna Capital Software Engineer Interview Guide 2026

TL;DR

This is a practical walkthrough of the Akuna Capital Software Engineer loop for anyone interviewing for a C++, Python, backend, or full-stack role at the firm. You'll get the typical shape of each round, what interviewers actually weight, track-specific prep, and concrete examples of how to narrate your thinking. The loop is less standardized than a big-tech pipeline, so treat the rounds below as the common pattern rather than a fixed script. Akuna builds technology for trading, so the loop skews toward practicality. The recurring test is whether you can write correct, performance-aware code under realistic constraints, not whether you can land a polished algorithm trick. Most candidates move through three broad phases: an online assessment, one or more technical interviews, and a final round that may bundle coding, system design, and behavioral conversations.

Interview Rounds
HR ScreenTake-home ProjectTechnical Screen
Key Topics
Coding & AlgorithmsSystem DesignData Manipulation (SQL/Python)Software Engineering Fundamentals
Practice Bank

19+ questions

Estimated Timeline

2–4 weeks

Browse all Akuna Capital questions

Sample Questions

19+ in practice bank
System Design
1

Implement a two-user communications handler

MediumSystem Design

One-at-a-time Two-User Communications Handler

Context

Design and implement a communications handler that supports exactly one active conversation at a time between two distinct users. Each user is represented by a Caller with a unique name.

Requirements

  1. Define a custom exception type:

    • ConnectionException that accepts a single error-message string.
  2. Define an abstract base class CommsHandlerABC with these abstract methods:

    • connect(user1: Caller, user2: Caller) -> str
      • Establish a call and return a success message, or raise ConnectionException.
    • hangup(user1: Caller, user2: Caller) -> str
      • End the call and return a success message, or raise ConnectionException.
    • clear_all() -> None
      • Force-clear any existing call and reset state.
  3. Implement a concrete CommsHandler that enforces:

    • Only one active call at any time.
    • A user cannot connect with themselves.
    • While a call is active, any new connect attempt fails with error: "Connection in use. Please try later".
    • hangup succeeds only for the currently connected pair (order-agnostic). Otherwise raise: "{A} and {B} not found in the communication channel." (note trailing period).
    • clear_all resets the state immediately.

I/O Behavior

  • Commands to support (semicolon-separated in a single line or as separate lines):
    • connect <user1> <user2>
    • hangup <user1> <user2>
    • clear_all
  • Output:
    • On success: prefix with "Success: " and include the handler's returned message.
    • On error: prefix with "Error: " and include the exception's message.

Sample

  • Sample Input:
    • connect Alice Bob; connect Carol Dave; hangup Alice Bob; connect Carol Dave; hangup Carol Dave; connect Eve Eve; hangup Alice Bob
  • Expected Output:
    • Success: Connection established between Alice and Bob; Error: Connection in use. Please try later; Success: Alice and Bob are disconnected; Success: Connection established between Carol and Dave; Success: Carol and Dave are disconnected; Error: Eve cannot connect with Eve; Error: Alice and Bob not found in the communication channel.
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2

Fix and harden an object pool

HardSystem Design

Refactor a Buggy C++ Object Pool Into a Correct, Thread-Safe Template

Context

You are given a buggy C++ object pool that suffers from races, double-free risks, ABA problems, and resource leaks during concurrent borrow/return operations. Refactor it into a robust template that is correct under concurrency and safe to shut down.

Assume C++17 or later.

Requirements

  • Implement a generic, thread-safe object pool template for objects of type T.
  • Provide borrow() that blocks when the pool is empty and creates up to a maximum capacity.
    • Also provide an overload with a timeout (e.g., borrow_for(duration)).
    • Ensure fairness among waiters (FIFO) and avoid spurious wakeups.
  • Provide returnObject(obj) to safely return an object:
    • Reject invalid returns (wrong pool) and duplicate returns.
    • Optionally reset objects before reuse (configurable functor).
  • Enforce RAII via a scoped handle that returns the object automatically when destroyed.
    • Handle must be movable but not copyable.
  • Ensure safe shutdown:
    • Destructor stops producers/consumers, wakes waiters, and releases resources without deadlocks.
  • Avoid busy-waiting; use std::mutex, std::condition_variable, and std::atomic correctly.
  • Prevent ABA issues (e.g., generation counters per item).
  • Include minimal unit tests demonstrating correctness under multiple threads.
  • Document the time complexity of core operations.

Deliverables: A single self-contained C++17 implementation plus minimal unit tests and brief complexity notes.

Constraints & Assumptions

  • Preserve the scope, facts, inputs, and requested outputs from the prompt above.
  • If the prompt leaves a detail unspecified, state a reasonable assumption before relying on it.
  • Keep the answer interview-ready: concise enough to present, but concrete enough to implement or evaluate.

Clarifying Questions to Ask

  • Clarify users, core use cases, read/write patterns, scale, latency, availability, and data retention.
  • State explicit assumptions before making sizing or architecture decisions.
  • Prioritize the functional path first, then address reliability, security, observability, and rollout.

What a Strong Answer Covers

  • A scoped requirements summary with concrete non-goals and success metrics.
  • API, data model, architecture, consistency, capacity, and operations.
  • Reasoned trade-offs among simple and scalable designs, including bottlenecks and failure modes.
  • A validation, monitoring, migration, and launch plan appropriate for the risk level.

Follow-up Questions

  • What breaks first at 10x traffic or data volume?
  • How would you degrade gracefully during dependency failures?
  • What metrics and alerts would prove the design is healthy after launch?
View full question
Coding & Algorithms
3

Compute max profit across dated stock quotes

MediumCoding & AlgorithmsCoding

You are given an unsorted list of price records for multiple stocks, each record as (date, symbol, price). Dates may be repeated across different symbols. Design an algorithm to compute the maximum profit and an explicit trading plan under these rules: (

  1. You can hold at most one share across all symbols at any time. (
  2. You may perform unlimited buy/sell transactions, but every buy must occur on a strictly later date than the previous sell (no same-day buy-and-sell for profit), and short selling is not allowed. (
  3. Assume prices are daily closes; if duplicates or missing dates occur, specify how you handle them. Return: (a) the maximum achievable profit, and (b) the sequence of trades (for each trade, list buy date, buy symbol, buy price, sell date, sell price). Explain your algorithm, prove correctness, and analyze time and space complexity. Discuss edge cases such as unsorted input, duplicate (date, symbol) rows, and non-monotonic dates.
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4

Implement a ring buffer

MediumCoding & AlgorithmsCoding

Implement a fixed-capacity circular buffer (ring buffer) supporting push, pop, peek, isEmpty, isFull, and size in O(

  1. time using an array. Define and implement the behavior when pushing to a full buffer (either overwrite the oldest element or reject the push—choose and document). Provide iteration over current elements in logical order. Discuss how you would extend it to a thread-safe version with optional blocking push/pop using condition variables, and analyze time/space complexity.
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Data Manipulation (SQL/Python)
5

Identify false MySQL foreign key statement

MediumData Manipulation (SQL/Python)

MySQL: Which of the following statements is false? A) A column might have a foreign key reference to itself. B) MySQL supports foreign key references between one column and another within a table. C) Corresponding columns in the foreign key and the referenced key must have similar data types. D) None of the above; all statements are correct. Select the single false statement and briefly justify.

View full question
6

Evaluate SQL expressions for zero

MediumData Manipulation (SQL/Python)Coding

Which of the following SQL expressions evaluate to 0? Evaluate each independently, justify the result, and note any dialect-specific behavior (e.g., MySQL type coercion rules):

  1. SELECT '0' = 0;
  2. SELECT 0 IS FALSE;
  3. SELECT '0' IS FALSE;
  4. SELECT STRCMP('0', 0). State your assumptions about the SQL dialect.
View full question
Software Engineering Fundamentals
7

Implement React check-in/out month dropdowns

MediumSoftware Engineering Fundamentals

React UI Enhancement: Check-in/Check-out Month Dropdowns

Context

You are working on a hotel reservation form in a React codebase. The form needs two new, controlled dropdowns for selecting months: one for Check-in and one for Check-out. The selections must respect constraints based on the current month and each other. Assume the form already has state management and an onSubmit handler; you will integrate with it via controlled props/callbacks or context.

Requirements

  1. Render two month dropdowns (January–December) integrated with the existing form.
  2. Enforce that the selected Check-out month is not earlier than the Check-in month; disable invalid options accordingly.
  3. Disable months earlier than the current month for both dropdowns.
  4. Keep components controlled and synchronize selections with the provided state management (props/callbacks or context) so the booking form receives updates.
  5. Validate on change and on submit; block submission and show inline errors if constraints are violated.
  6. Ensure keyboard accessibility and proper ARIA labels.
  7. Add unit tests covering state updates, disabled options, and validation behavior.

Notes/Assumptions:

  • Months are for the current year only. Without year selection, the constraint is month-based only (e.g., September ≥ August). If you later add years, update the comparison accordingly.
  • Use native HTML select elements for built-in keyboard accessibility.
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About the Interview Process

Who this guide is for

This is a practical walkthrough of the Akuna Capital Software Engineer loop for anyone interviewing for a C++, Python, backend, or full-stack role at the firm. You'll get the typical shape of each round, what interviewers actually weight, track-specific prep, and concrete examples of how to narrate your thinking. The loop is less standardized than a big-tech pipeline, so treat the rounds below as the common pattern rather than a fixed script.

Akuna Capital Software Engineer Interview Guide 2026 interview prep framework Technical Interview Prep Framework Use the flow below to turn the article into a concrete practice plan. Frame what matters Practice representative tasks Explain reasoning aloud Review gaps and fixes After each practice rep, write down what broke, then repeat the lane that exposed the gap.

Flowchart of the Akuna Capital software engineer interview process from online assessment to final round

What to expect

Akuna builds technology for trading, so the loop skews toward practicality. The recurring test is whether you can write correct, performance-aware code under realistic constraints, not whether you can land a polished algorithm trick. Most candidates move through three broad phases: an online assessment, one or more technical interviews, and a final round that may bundle coding, system design, and behavioral conversations.

Format shifts by team, language track, and level. The clearest split is by track:

  • C++ candidates tend to face lower-level, performance-focused questions.
  • Python, backend, and full-stack candidates more often see SQL, OOP, and implementation tasks that resemble real feature work.

Because the exact path varies, read the round descriptions below as the typical structure, then pressure-test them against any recruiter call notes you get.

Interview rounds

Online assessment

Usually the first step, commonly running somewhere from about 45 minutes to a couple of hours. It is often HackerRank-style, but the content varies a lot by team. Some candidates report several shorter coding problems; others get one long implementation task with detailed requirements. This round mainly checks coding fluency, correctness under time pressure, and your ability to write solid code in the target language.

What helps here: read the full spec before writing anything, handle the stated edge cases explicitly, and leave time to test rather than racing to a first submission.

Technical screen or live coding

A 30 to 45 minute technical interview with an engineer in a shared editor or pair-coding setup. Depending on the team, you may solve one or more coding problems, walk through your resume, or answer language-specific questions. Interviewers generally look for:

  • A clear problem-solving process and steady communication while coding
  • Clean, readable implementation
  • Awareness of time and space complexity and edge cases

System design

For many full-time and mid-level roles, Akuna includes a dedicated system design discussion, often around 45 to 60 minutes, either ahead of or within the final round. It tends to focus on practical engineering tradeoffs - scalability, reliability, and latency - rather than abstract architecture buzzwords. Common themes include caching, rate limiting, distributed-systems basics, and designing services that hold up under load. Given the domain, expect prompts where throughput and correctness both matter, such as high-volume data or exchange-style components.

Behavioral or fit interview

A behavioral or hiring-manager conversation is frequently part of the process, either as a standalone round of about 30 minutes or folded into the final loop. It evaluates how you communicate, how you collaborate, why you want Akuna specifically, and whether you operate well in a fast-moving environment. Be ready to talk through projects, teamwork, conflict, ownership, and your interest in trading- or finance-driven engineering.

Final round or onsite

The final stage often runs roughly 90 minutes to 3 hours and may stack several interviews back-to-back. In many cases it is a multi-panel loop spanning technical coding, system design, and fit conversations in one sitting; some teams hold the final in person. This round tests sustained technical depth, adaptability across interview styles, and whether you stay clear and composed through a longer evaluation.

Round-by-round cheat sheet

RoundTypical lengthPrimary focusWhat to do well
Online assessment~45 min to 2 hrsCoding fluency, correctness under timeParse the spec fully, cover stated edge cases, leave time to test
Technical screen30 to 45 minProblem-solving, clean code, communicationThink out loud, state complexity, handle edge cases before optimizing
System design45 to 60 minPractical tradeoffs, latency, reliabilityClarify requirements, reason about throughput, justify each choice
Behavioral / fit~30 minCommunication, ownership, motivationUse STAR, have a sharp "why Akuna," show fast-feedback mindset
Final / onsite~90 min to 3 hrsSustained depth across formatsStay composed, switch gears cleanly, keep narrating reasoning

What they test

Akuna emphasizes practical software engineering fundamentals, with a strong focus on correctness, efficiency, and implementation quality. Data structures and algorithms matter, but rarely in isolation. Interviewers often care just as much about whether you can:

  • Translate messy requirements into working code
  • Reason through edge cases and debug under pressure
  • Explain tradeoffs clearly

Complexity analysis counts, but it usually comes after getting the solution right.

The depth becomes more specialized by track:

  • C++ roles: expect deeper questions on pointers, memory management, the STL, low-level correctness, and performance-sensitive code.
  • Python, backend, or full-stack roles: expect Python OOP, SQL, backend service logic, and sometimes frontend or React-related implementation.

Across tracks, Akuna also values systems thinking - concurrency, throughput and latency tradeoffs, caching, load balancing, fault tolerance, API design, and distributed-systems basics all surface. Because the firm builds technology for trading, be ready for scenarios where performance and correctness matter together.

Diagram comparing the C++ track and the Python or full-stack track focus areas for an Akuna interview

How to stand out

  • Match prep to the exact team and language track. For C++, go deep on memory, pointers, the STL, and performance. For Python or full-stack, review OOP, SQL, and practical service or UI implementation.
  • Practice longer, requirement-heavy tasks, not only short LeetCode problems. The assessments tend to reward candidates who read specs quickly and implement accurately without losing structure.
  • Narrate your decisions as you code. Interviewers care about how you reason through tradeoffs, test cases, and complexity, not just whether you eventually reach a working answer.
  • Write production-quality code. Clear naming, sensible structure, and explicit edge-case handling so the solution looks like something a team could build on.
  • Be ready to discuss performance even in a standard SWE interview. Explain how design choices affect latency, throughput, and resource usage.
  • Have a sharp answer for "why Akuna" and "why trading-tech." Connect your interests to high-impact, fast-feedback, performance-critical systems rather than a generic finance answer.
  • Rehearse switching gears across coding, design, and behavioral topics, since the final rounds can shift formats quickly.

Example: narrating a coding problem

It helps to make your process audible. For instance, on a typical implementation task you might say:

"I'll restate the requirements first, then handle the empty and single-element cases. My initial pass is O(n^2) for clarity; once it's correct I'll swap in a hash map to get O(n). Let me add a quick test for duplicates before I optimize."

That sequence - restate, cover edge cases, get it correct, then optimize and re-test - is exactly the discipline interviewers reward at a performance-focused firm.

Example: a "why Akuna" answer

Avoid generic finance lines. For instance:

"I want to work where code quality has an immediate, measurable impact. Trading systems give that fast feedback loop, and I enjoy problems where correctness and latency both matter at the same time, like designing a component that has to stay fast under heavy load."

A 2-week prep sketch

You can adapt this depending on how much time you have before the loop.

  • Days 1 to 4: Drill core data structures and algorithms in your target language. If you're on the C++ track, fold in STL and memory questions now.
  • Days 5 to 8: Practice longer, spec-heavy implementation tasks end to end. Time yourself, then review for edge cases you missed.
  • Days 9 to 11: Run system design reps on caching, rate limiting, and high-throughput services. Practice clarifying requirements out loud.
  • Days 12 to 14: Prepare behavioral stories in STAR form, sharpen "why Akuna," and do at least one mixed mock that switches between coding and design.

Mix in real interview questions as you go. You can pull Akuna-specific reps from the Akuna Capital question bank, browse role-specific patterns on the software engineer track, and use the full PracHub question bank for broader coverage. For structure across formats, the interview guide hub and the rest of our resources cover system design and behavioral prep.

How to Use This Page as a Prep Plan

Do not treat this as passive reading. Convert the ideas in this page into a short weekly loop: learn one idea, practice it under interview conditions, then write down what changed. That is the fastest way to turn advice into visible interview behavior.

Prep areaWhat you need to provePractice artifact
UnderstandTurn the prompt into a concrete goal.Clarifying questions and success criteria.
PracticeUse realistic constraints and timed reps.Worked examples with edge cases.
ExplainMake reasoning visible.Tradeoffs, assumptions, and test strategy.
ImproveReview misses quickly.A short feedback log and next action.

For Akuna Capital Software Engineer Interview Guide 2026, the strongest candidates usually do three things well: they make their assumptions explicit, they use concrete examples instead of vague claims, and they review mistakes quickly enough that the next practice rep is better than the last one.

Video Walkthrough

This verified YouTube video gives a second pass on the same preparation area. Use it after reading the guide, then come back and turn the advice into a practice artifact.

FAQ

Does Akuna Capital ask LeetCode-style questions?

Algorithm and data-structure skills do come up, but the loop leans toward practical, requirement-heavy implementation rather than pure puzzle-solving. Many candidates find that being fluent with longer spec-driven tasks matters as much as memorizing patterns. Practice both, and prioritize correctness and clean code over clever tricks.

Is the interview different for C++ versus Python roles?

Yes. C++ candidates tend to get deeper low-level questions on memory, pointers, the STL, and performance. Python, backend, and full-stack candidates more often see OOP, SQL, and service or UI implementation. Both tracks still touch shared systems topics like concurrency, caching, and latency tradeoffs, so prepare to the track you're applying for.

How hard is the Akuna Capital online assessment?

It varies by team. Some candidates report multiple shorter coding problems; others get one long implementation task with detailed requirements. The common challenge is reading the spec quickly and writing correct code under time pressure. Budget time to test before you submit instead of optimizing prematurely.

Should I prepare system design even for a coding-heavy role?

For many full-time and mid-level roles, yes. System design discussions often appear, focused on practical tradeoffs like scalability, reliability, and latency rather than buzzwords. Reviewing caching, rate limiting, and high-throughput service design is worth it even if your primary strength is coding.

How should I answer "why Akuna" or "why trading-tech"?

Tie your answer to high-impact, fast-feedback, performance-critical engineering rather than finance in the abstract. A common pitfall is giving a generic "I like finance" response. Connect it to the kind of work you actually enjoy, such as systems where correctness and latency both matter.

Frequently Asked Questions

It is definitely on the harder side, mostly because the bar is high and the pace can feel intense. The coding questions are usually very doable if you have strong fundamentals, but they expect clean thinking, speed, and solid debugging. You also get tested on practical engineering judgment, not just LeetCode tricks. Compared with many big tech interviews, it feels more trading-firm style: sharp, direct, and less forgiving if you freeze or communicate poorly.

From what I saw, the process usually starts with a recruiter screen, then an online assessment or coding screen. After that, there is often a technical phone interview with live coding and discussion around data structures, algorithms, and language-specific knowledge. Final rounds can include multiple technical interviews, sometimes a systems or practical engineering round, and a behavioral conversation. The exact order can vary by team, but expect a mix of coding, debugging, and problem-solving under time pressure.

If your algorithms and coding speed are already decent, two to four focused weeks can be enough. If you are rusty, give yourself six to eight weeks. What helped me most was doing timed coding practice, reviewing core data structures, and brushing up on my main language in detail. Akuna-style interviews reward people who can think fast without getting messy, so short daily practice works better than occasional long study sessions. I would also spend time explaining solutions out loud.

The biggest ones are data structures and algorithms, especially arrays, strings, hash maps, trees, graphs, heaps, sorting, searching, and complexity analysis. Beyond that, language fluency matters a lot. If you say you know C++, Java, or Python, expect questions about how it actually works in practice. Debugging and writing correct code quickly also matter more than people expect. For some teams, networking, concurrency, operating systems, and basic system design can come up, but strong coding fundamentals carry the most weight.

The biggest mistake is treating it like a pure puzzle interview and ignoring communication. If you stay silent, jump into code too early, or cannot explain tradeoffs, it hurts. Another common problem is writing rushed code with edge-case bugs and never testing it. People also get knocked out by weak fundamentals, especially time complexity or basic language behavior. I also saw candidates stumble when they got flustered by hints. Akuna interviews reward calm, structured thinking more than flashy but messy solutions.

Akuna CapitalSoftware Engineerinterview guideinterview preparationAkuna Capital interview

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