March 2023
How to Handle Software Engineering Interview Questions

When interviewing for a software engineering position, employers will typically ask questions related to your experience, skills and knowledge.
As experts in placing software engineers across the financial technology sector, we've collated 10 of the most common questions asked during interviews:
Software can be broadly categorized into three main types: system software, application software, and web-based software. Each category serves distinct purposes and functions within the broader technological ecosystem.
System Software: acts as the foundation for the operation of a computer and other hardware. It manages the hardware resources and provides a platform for running application software.
Examples:
- Operating Systems (OS): These are essential for the basic functioning of a computer. They manage hardware resources and allow users to run applications. Common examples include Windows, macOS, and Linux.
- Device Drivers: These specialized software components allow the operating system to communicate with hardware devices like printers, keyboards, and graphics cards.
- Utility Programs: These include tools for system maintenance, such as antivirus software, disk cleanup tools, and backup programs. They help improve system performance and ensure data security.
Application Software: designed for end users to perform specific tasks, such as document creation, data analysis, communication, or entertainment. It runs on top of system software and provides the functionality required for various tasks.
Examples:
- Word Processing Software: Programs like Microsoft Word and Google Docs allow users to create, edit, and format text documents.
- Spreadsheet Software: Tools like Microsoft Excel or Google Sheets are used for data organization, calculations, and analysis through tables and charts.
- Database Software: Applications like MySQL or Microsoft Access are used to manage, store, and retrieve large volumes of structured data efficiently.
Web-based Software: also known as cloud-based or internet-based software, is designed to be accessed and used via a web browser without the need for local installation. It relies on the internet and often stores data in the cloud, allowing for real-time collaboration and access from multiple devices.
Examples:
- Websites: Informational or interactive sites that provide content, such as news, blogs, e-commerce platforms, or educational portals.
- Web Applications: These are more interactive than static websites and include tools like Google Workspace, project management platforms (like Trello or Asana), and online design tools (such as Canva).
- Mobile Apps: Although technically installed on devices, many mobile apps like social media platforms, banking apps, and fitness trackers rely on web-based functionality to sync data and provide real-time services.
These categories demonstrate how software can be specialized for different tasks, from running the core functions of a system to enabling specific user-driven activities, both locally and over the web.
Software typically has the following characteristics:
- Reliability - the ability to perform its functions as expected.
- Maintainability - how easy it is to update, modify, or repair when necessary.
- Scalability - how it can meet the increasing demands of a growing user base.
- Usability - the ease of use and the user interface design.
- Security - how the software protects data from unauthorized access.
- Portability - the ability to run on different hardware platforms.
A software framework is a set of libraries and tools that are used to develop software applications. Frameworks provide a structure for software development and help to reduce the amount of code that needs to be written. Some popular frameworks include Ruby on Rails, Node.js, and Angular.
Employers will want to know your program language proficiencies and gauge your technical skills, problem-solving approach, and ability to adapt to the technologies used within the company.
When responding to this question, it's important to tailor your answer to the job requirements, discuss your experience and projects, and highlight your adaptability by demonstrating your ability to learn new languages if required.
Software engineering is a rapidly evolving field, and companies often value engineers who can quickly pick up new tools and technologies.
When checking a team member’s code, it is important to ensure that the code is accurate, efficient, and follows best practices. It is also important to check for any potential security vulnerabilities and ensure that the code is well-documented and easy to maintain and debug.
Project management tools help software engineers to manage and monitor the progress of a software development project. Common project management tools used in software engineering include Jira, Trello, and Asana.
Employers may ask for specific examples of projects that the individual has completed successfully. This is a good opportunity to discuss the challenges faced and the successes achieved. Additionally, it is important to demonstrate that the individual has a good understanding of the software development process.
When interviewing for a software engineering position, employers will typically ask what you're looking for in the job. It is important to provide specific answers that demonstrate enthusiasm and commitment to the position. Additionally, it is a good time discuss any specific skills that you can bring to the position.
Assuring software quality is a critical aspect of the development process, aimed at ensuring the final product meets both user expectations and technical requirements. This process involves various forms of testing, each designed to catch potential issues and ensure the software performs reliably.
- Functional testing is at the core of software quality assurance, verifying that all features and functions operate according to their specifications.
- Usability testing is another essential component, which focuses on evaluating how easy and intuitive the software is for the end user.
- Compatibility testing ensures that the software performs consistently across various platforms, devices, and operating systems.
- Performance testing evaluates how well the software handles varying workloads, ensuring it remains efficient under high user traffic or stress conditions. This type of testing includes load testing, stress testing, and scalability testing.
- Security testing is crucial for software that handles sensitive information, such as personal data or financial transactions. This type of testing involves identifying vulnerabilities through techniques like penetration testing and code reviews.
Employers will typically ask about your career goals. Make sure you provide answers that demonstrate an understanding of the software engineering field and a desire to learn and grow in the position.
Why choose Selby Jennings?
At Selby Jennings, we specialize in connecting talented software engineers with leading organizations. We have an extensive network of clients and employers, and our expert talent team are committed to helping you develop in your career.