GXO Logistics Software Engineer Interview Questions + Guide in 2025

GXO Logistics is a leading provider of innovative supply chain solutions, dedicated to maximizing the efficiency of goods management through advanced technology and services.

As a Software Engineer at GXO, you will play a critical role in the design, development, and maintenance of sophisticated Warehouse Management Systems (WMS) and supporting software applications. Your responsibilities will encompass providing technical leadership, ensuring best practices are adhered to, and resolving technical issues to facilitate smooth business operations. You will be expected to design and develop scalable production-level code using the Microsoft technology stack, while also leveraging emerging open-source technologies. A key aspect of your role involves mentoring junior programmers, analyzing complex business problems, and proposing effective software solutions.

To excel in this position, you will need a solid foundation in software engineering principles, experience in full stack development, and proficiency in languages such as C# and .NET Core. Familiarity with Continuous Integration/Continuous Deployment (CI/CD) environments, as well as knowledge of user experience (UX) design principles, will further enhance your fit for this role. Your ability to collaborate effectively within a fast-paced environment will be crucial to contributing to GXO’s mission of delivering exceptional service and driving strategic initiatives.

This guide will empower you to prepare thoroughly for your job interview at GXO, enabling you to demonstrate not only your technical skills but also your alignment with the company's values and business processes.

The interview process for a Software Engineer at GXO Logistics is structured to assess both technical skills and cultural fit within the organization. Here’s what you can expect:

1. Initial Screening

The first step in the interview process is a phone screening with a recruiter. This conversation typically lasts about 30 minutes and focuses on your background, experience, and motivation for applying to GXO. The recruiter will also provide insights into the company culture and the specifics of the Software Engineer role, ensuring that you understand the expectations and responsibilities.

2. Technical Assessment

Following the initial screening, candidates will undergo a technical assessment, which may be conducted via a coding platform or through a video call. This assessment is designed to evaluate your proficiency in programming languages, particularly C# and .NET Core, as well as your understanding of full-stack development. You may be asked to solve coding problems, demonstrate your knowledge of algorithms, and discuss your approach to software design and architecture.

3. Behavioral Interview

After successfully completing the technical assessment, candidates will participate in a behavioral interview. This round typically involves one or more interviewers and focuses on your past experiences, teamwork, and problem-solving abilities. Expect questions that explore how you handle challenges, collaborate with others, and contribute to a positive work environment. This is also an opportunity for you to showcase your alignment with GXO's values and culture.

4. Onsite Interview (or Final Round)

The final stage of the interview process may take place onsite or virtually, depending on the company's current policies. This round usually consists of multiple interviews with team members and managers. You will be assessed on your technical skills, including your ability to design and develop scalable applications, as well as your understanding of Continuous Integration and Continuous Development practices. Additionally, you may be asked to participate in a coding exercise or a design review session to demonstrate your technical leadership and mentoring capabilities.

Throughout the interview process, be prepared to discuss your experience with various technologies, including SQL and NoSQL databases, as well as your familiarity with modern JavaScript frameworks.

Now that you have an understanding of the interview process, let’s delve into the specific questions that candidates have encountered during their interviews at GXO Logistics.

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

Understand the Logistics Industry

GXO Logistics operates in a fast-paced environment where efficiency and innovation are key. Familiarize yourself with the logistics and supply chain industry, including current trends, challenges, and technologies. This knowledge will not only help you answer questions more effectively but also demonstrate your genuine interest in the field and the company.

Highlight Your Technical Expertise

As a Software Engineer, you will be expected to have a strong command of the Microsoft technology stack, particularly C#, .NET Core, and AngularJS. Be prepared to discuss your experience with these technologies in detail, including specific projects where you applied your skills. Additionally, showcase your understanding of both SQL and NoSQL databases, as well as your experience with Continuous Integration (CI) and Continuous Development (CD) practices.

Emphasize Problem-Solving Skills

GXO values individuals who can analyze business problems and propose effective software solutions. Prepare to discuss specific instances where you identified a problem, developed a solution, and implemented it successfully. Use the STAR (Situation, Task, Action, Result) method to structure your responses, ensuring you clearly articulate your thought process and the impact of your solutions.

Prepare for Design and Code Review Discussions

Given the emphasis on design and development in the role, be ready to engage in discussions about your design choices and coding practices. Familiarize yourself with best practices in software development, including design patterns and user experience principles. You may also be asked to participate in a mock code review, so be prepared to provide constructive feedback and defend your design decisions.

Showcase Your Mentorship Experience

Mentoring junior programmers is a key aspect of the role. If you have experience in this area, be sure to highlight it during the interview. Discuss how you have supported the growth of others, shared knowledge, and contributed to a positive team environment. This will demonstrate your leadership potential and alignment with GXO's collaborative culture.

Align with Company Values

GXO emphasizes a positive work environment and employee support. During your interview, reflect on how your personal values align with the company's mission and culture. Be prepared to discuss what motivates you and how you contribute to a positive team dynamic. This alignment will resonate well with interviewers and reinforce your fit for the company.

Practice Behavioral Questions

Expect to encounter behavioral interview questions that assess your soft skills, such as teamwork, communication, and adaptability. Prepare examples from your past experiences that showcase these skills, particularly in high-pressure or challenging situations. This preparation will help you convey your ability to thrive in GXO's dynamic work environment.

Be Ready for Technical Challenges

You may face technical challenges or coding exercises during the interview process. Practice coding problems that reflect the technologies and frameworks relevant to the role. Focus on writing clean, efficient code and be prepared to explain your thought process as you work through the challenges. This will demonstrate your technical proficiency and problem-solving abilities.

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

GXO Logistics Software Engineer Interview Questions

In this section, we’ll review the various interview questions that might be asked during a software engineering interview at GXO Logistics. The interview will focus on your technical expertise, problem-solving abilities, and experience with software development processes. Be prepared to discuss your knowledge of full-stack development, algorithms, and your approach to debugging and troubleshooting.

Technical Skills

1. Can you explain the software development life cycle and your experience with it?

Understanding the software development life cycle (SDLC) is crucial for a software engineer, especially in a fast-paced environment like GXO.

How to Answer

Discuss the phases of the SDLC, emphasizing your experience in each phase, particularly in planning, development, testing, and deployment.

Example

“I have worked extensively through all phases of the SDLC, from gathering requirements and designing solutions to coding and testing. In my previous role, I led a project where we implemented Agile methodologies, which allowed us to iterate quickly and deliver high-quality software on time.”

2. Describe a challenging bug you encountered in your code and how you resolved it.

This question assesses your problem-solving skills and your approach to debugging.

How to Answer

Provide a specific example of a bug, the steps you took to identify and fix it, and the outcome of your efforts.

Example

“I once faced a critical bug in a production application that caused data loss. I used logging to trace the issue back to a race condition in the code. After identifying the problem, I implemented a locking mechanism to ensure data integrity, which resolved the issue and improved the application’s stability.”

3. How do you ensure the quality of your code?

Quality assurance is vital in software development, and interviewers want to know your methods for maintaining high standards.

How to Answer

Discuss your practices for code reviews, unit testing, and adherence to coding standards.

Example

“I prioritize writing clean, maintainable code and regularly conduct code reviews with my peers. I also implement unit tests using frameworks like NUnit to ensure that my code behaves as expected, which helps catch issues early in the development process.”

4. What is your experience with Continuous Integration and Continuous Deployment (CI/CD)?

CI/CD practices are essential for modern software development, and familiarity with these processes is expected.

How to Answer

Explain your experience with CI/CD tools and how you have implemented these practices in your previous projects.

Example

“I have implemented CI/CD pipelines using tools like Jenkins and Azure DevOps. This has allowed my team to automate testing and deployment processes, significantly reducing the time it takes to deliver new features and fixes to production.”

5. Can you discuss your experience with RESTful APIs?

APIs are a critical component of modern applications, and understanding how to work with them is essential.

How to Answer

Describe your experience designing, developing, or consuming RESTful APIs, and any challenges you faced.

Example

“I have developed several RESTful APIs for web applications, ensuring they follow best practices for security and performance. One challenge I faced was optimizing response times, which I addressed by implementing caching strategies and reducing payload sizes.”

Algorithms and Data Structures

1. How would you approach optimizing a slow-running algorithm?

This question tests your understanding of algorithms and your ability to improve performance.

How to Answer

Discuss your approach to analyzing the algorithm's complexity and identifying bottlenecks.

Example

“I would start by profiling the algorithm to identify which parts are causing the slowdown. Then, I would analyze its time and space complexity, looking for opportunities to use more efficient data structures or algorithms, such as switching from a nested loop to a hash table for lookups.”

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

Understanding fundamental data structures is crucial for any software engineer.

How to Answer

Clearly define both data structures and their use cases.

Example

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

3. Describe a situation where you had to use a specific algorithm to solve a problem.

This question assesses your practical application of algorithms.

How to Answer

Provide a specific example of a problem you solved using an algorithm, detailing the algorithm's purpose and implementation.

Example

“In a project to sort large datasets, I implemented the QuickSort algorithm due to its average-case efficiency. I chose it over other sorting algorithms because of its performance in handling large arrays, which significantly reduced the processing time for our application.”

4. What is your experience with data structures like trees and graphs?

This question evaluates your knowledge of more complex data structures.

How to Answer

Discuss your experience with trees and graphs, including any algorithms you have implemented.

Example

“I have worked with binary trees for implementing search algorithms and have used graph data structures for pathfinding in applications. For instance, I implemented Dijkstra’s algorithm to find the shortest path in a logistics application, which improved route optimization.”

5. How do you approach learning a new programming language or technology?

This question assesses your adaptability and willingness to learn.

How to Answer

Explain your process for learning new technologies, including resources and methods you find effective.

Example

“When learning a new programming language, I start with the official documentation and follow online tutorials to build small projects. I also engage with the community through forums and GitHub to gain insights and best practices, which helps solidify my understanding.”