Taxbit Software Engineer Interview Questions + Guide in 2025

Taxbit is a pioneering company founded in 2018 by CPAs, tax attorneys, and software developers, focused on enabling compliant adoption of digital assets for the global economy through its innovative Software-as-a-Service (SaaS) platform.

As a Software Engineer at Taxbit, you will be integral to building and implementing modern software solutions that address complex problems in the FinTech space. Key responsibilities include developing elegant and efficient software, collaborating with cross-functional teams to ensure alignment on user needs, and writing maintainable code that adheres to high-quality standards. You will engage in code reviews to uphold code quality, contribute to team knowledge sharing, and take ownership of problem-solving across various systems and services.

The ideal candidate will have at least three years of professional programming experience, with a strong focus on building scalable applications, APIs, and modern web frontends. Proficiency in languages such as TypeScript, NodeJS, React, or Python is crucial. Additionally, experience with cloud infrastructure, particularly AWS, and a commitment to continuous delivery and automated testing are essential traits. Candidates should also possess excellent analytical and communication skills to effectively convey ideas to both technical and non-technical stakeholders. A passion for teamwork and mentorship is highly valued, reflecting Taxbit's culture of collaboration and innovation.

This guide will equip you with insights into the role's expectations and the skills needed to excel in your interview, allowing you to present yourself as a strong candidate who aligns with Taxbit's mission and values.

The interview process for a Software Engineer at TaxBit is structured to assess both technical skills and cultural fit within the team. It typically consists of several stages, each designed to evaluate different aspects of a candidate's qualifications and compatibility with the company's values.

1. Initial Recruiter Call

The process begins with a phone call from a recruiter, lasting about 30 minutes. This conversation serves as an introduction to the role and the company, where the recruiter will discuss your background, motivations, and what you are looking for in your next position. It’s also an opportunity for you to ask questions about TaxBit’s culture and the specifics of the role.

2. Technical Phone Screen

Following the initial call, candidates will participate in a technical phone screen with an engineer. This interview focuses on coding skills and problem-solving abilities. Expect to tackle medium-difficulty coding problems, often inspired by platforms like LeetCode or HackerRank. The interviewer may also engage in a discussion about your previous work experience and how it relates to the role at TaxBit.

3. System Design Interview

The next step is a system design interview, which is framed as a collaborative conversation. Here, you will be asked to design a system or solve a complex problem relevant to the role. This interview assesses your ability to think critically about architecture, scalability, and the overall design of software solutions. Be prepared to discuss trade-offs and justify your design choices.

4. Coding Interview

Candidates will then face a coding interview, which may include both live coding and theoretical questions. This round is designed to evaluate your coding proficiency and your approach to problem-solving. The questions may vary in difficulty, but they often focus on practical applications of coding skills in real-world scenarios.

5. Behavioral Interview

The final round typically consists of a behavioral interview, where you will be asked about your past experiences, teamwork, and how you handle challenges. This interview aims to gauge your cultural fit within the team and your alignment with TaxBit's values. Expect questions that explore your collaboration style, conflict resolution, and adaptability in a fast-paced environment.

Throughout the interview process, candidates are encouraged to demonstrate their passion for software engineering, problem-solving skills, and ability to work collaboratively.

Next, let’s delve into the specific interview questions that candidates have encountered during their interviews at TaxBit.

Here are some tips to help you excel in your interview.

Understand the Interview Structure

TaxBit's interview process typically includes a recruiter call, a non-technical phone screen, and multiple technical interviews focusing on coding and system design. Familiarize yourself with this structure so you can prepare accordingly. Expect the coding round to feature medium-difficulty LeetCode or HackerRank problems, emphasizing problem-solving over complexity. The system design interview will likely be conversational, so be ready to discuss your thought process and design choices.

Prepare for Technical Questions

Given the emphasis on coding and system design, ensure you are well-practiced in algorithms and data structures. Focus on medium-level problems that require clear problem-solving strategies. Additionally, be prepared to discuss your experience with scalable distributed systems, APIs, and cloud applications, as these are crucial for the role. Brush up on your knowledge of Typescript, NodeJS/React, and Python, as these are key technologies used at TaxBit.

Emphasize Collaboration and Communication

TaxBit values teamwork and collaboration, so be prepared to discuss your experiences working with cross-functional teams, including designers and product managers. Highlight instances where you contributed to team success, mentored others, or facilitated knowledge sharing. Your ability to communicate complex technical concepts to non-technical stakeholders will also be assessed, so practice articulating your ideas clearly and concisely.

Showcase Your Passion for FinTech

Demonstrate your enthusiasm for the FinTech space and your understanding of the challenges it faces, particularly in the context of digital assets and compliance. Familiarize yourself with recent developments in the industry and be ready to discuss how your skills and experiences align with TaxBit's mission to streamline tax reporting and compliance for digital assets.

Be Ready for Behavioral Questions

Expect behavioral questions that explore your past work experiences and how they align with TaxBit's culture. Prepare to discuss situations where you faced challenges, how you overcame them, and what you learned from those experiences. TaxBit looks for candidates who are humble, hungry, and open to tackling industry challenges, so embody these traits in your responses.

Follow Up and Stay Engaged

After your interviews, consider sending a thank-you note to your interviewers, expressing your appreciation for the opportunity to learn more about TaxBit. This not only shows your professionalism but also reinforces your interest in the role. If you don’t hear back in a reasonable timeframe, don’t hesitate to follow up with the recruiter to express your continued interest.

By following these tips and preparing thoroughly, you can position yourself as a strong candidate for the Software Engineer role at TaxBit. Good luck!

In this section, we’ll review the various interview questions that might be asked during a Software Engineer interview at TaxBit. The interview process will likely focus on your coding skills, system design capabilities, and your ability to work collaboratively within a team. Expect a mix of technical and behavioral questions that assess your problem-solving skills and your fit within the company culture.

Coding and Algorithms

1. Can you explain the difference between a stack and a queue?

Understanding data structures is fundamental for any software engineer.

How to Answer

Discuss the definitions of both data structures, their use cases, and how they differ in terms of data access.

Example

“A stack is a Last In First Out (LIFO) structure, where the last element added is the first to be removed. A queue, on the other hand, is a First In First Out (FIFO) structure, where the first element added is the first to be removed. Stacks are often used in scenarios like function call management, while queues are used in scenarios like task scheduling.”

2. Write a function to reverse a linked list.

This question tests your understanding of linked lists and your coding skills.

How to Answer

Outline your approach first, then write the code while explaining your thought process.

Example

“To reverse a linked list, I would iterate through the list, changing the next pointers of each node to point to the previous node. Here’s a simple implementation in Python: I would initialize three pointers: previous, current, and next, and then iterate through the list updating the pointers accordingly.”

3. How would you find the first non-repeating character in a string?

This question assesses your problem-solving skills and familiarity with string manipulation.

How to Answer

Explain your approach to solving the problem, including any data structures you would use.

Example

“I would use a hash map to count the occurrences of each character. Then, I would iterate through the string a second time to find the first character with a count of one. This approach ensures that I only traverse the string twice, resulting in O(n) time complexity.”

4. Can you explain how you would implement a binary search algorithm?

Binary search is a common algorithm that demonstrates your understanding of searching techniques.

How to Answer

Describe the algorithm step-by-step and its time complexity.

Example

“Binary search works on sorted arrays. I would start with two pointers, one at the beginning and one at the end of the array. I would calculate the middle index and compare the middle element with the target value. If they match, I return the index; if the target is less, I search the left half, and if greater, the right half. This continues until the target is found or the pointers cross, resulting in O(log n) time complexity.”

System Design

1. Design a system to handle buy/sell transactions for a trading platform.

This question evaluates your system design skills and understanding of distributed systems.

How to Answer

Discuss the components of the system, including databases, APIs, and user interfaces.

Example

“I would start by defining the requirements, such as user authentication, transaction processing, and reporting. The system would consist of a front-end application for users, a back-end API to handle requests, and a database to store transaction data. I would also implement a message queue for processing transactions asynchronously to ensure scalability and reliability.”

2. How would you ensure data consistency in a distributed system?

This question tests your knowledge of distributed systems and data management.

How to Answer

Discuss various strategies for maintaining consistency, such as CAP theorem, eventual consistency, and distributed transactions.

Example

“To ensure data consistency, I would consider using a consensus algorithm like Paxos or Raft for critical operations. Additionally, I would implement eventual consistency for less critical data, allowing for temporary discrepancies while ensuring that all nodes eventually converge to the same state.”

Behavioral Questions

1. Describe a challenging technical problem you faced and how you solved it.

This question assesses your problem-solving skills and resilience.

How to Answer

Use the STAR method (Situation, Task, Action, Result) to structure your response.

Example

“In my previous role, we faced a significant performance issue with our application. The situation was critical as it affected user experience. My task was to identify the bottleneck. I analyzed the code and discovered inefficient database queries. I optimized these queries and implemented caching, which improved performance by 50%, resulting in a much better user experience.”

2. How do you prioritize tasks when working on multiple projects?

This question evaluates your time management and organizational skills.

How to Answer

Discuss your approach to prioritization, including any frameworks or tools you use.

Example

“I prioritize tasks based on urgency and impact. I often use the Eisenhower Matrix to categorize tasks into four quadrants. I focus on high-impact tasks first and ensure that I communicate with my team to align on priorities. This approach helps me manage my workload effectively while meeting deadlines.”