Peraso Software Engineer interview questions & guide 2026

Our interview process is designed to evaluate both your technical depth and your ability to communicate complex concepts clearly. While questions vary by team and seniority, you should expect a blend of foundational computer science theory and practical, hands-on coding.

Technical & Domain Fundamentals

These questions test your core understanding of operating systems, hardware interaction, and low-level programming concepts.

• How do you manage memory and prevent memory leaks in C++?
• Can you explain polymorphism and inheritance in the context of C++?

Preparation at Peraso requires a balance of theoretical review and practical coding practice. You should be prepared to dive deep into your resume, as interviewers will use it as a starting point to explore your past technical challenges.

Technical Depth – We expect you to be comfortable with C/C++ and low-level system concepts. Review your OS fundamentals, including memory management, threading, and synchronization, as these are foundational to our firmware and driver work.

Coding Proficiency – You will be asked to solve problems on a whiteboard or in a live coding environment. Focus on writing readable, efficient code and be prepared to explain your logic and trade-offs as you write.

Problem-Solving Approach – When faced with a design or algorithmic problem, think out loud. We are interested in your thought process, how you clarify requirements, and how you handle hints or feedback from the interviewer.

Communication & Fit – Be ready to articulate your past projects clearly. We look for engineers who are enthusiastic about wireless technology and who can work collaboratively in a team setting.

The Peraso interview process is designed to be thorough yet professional. It typically begins with an initial phone or video screening, where you will discuss your background, your interest in the company, and your technical foundation. If you advance, you may participate in a technical round involving a shared online editor or a more formal in-person interview.

For those moving to later stages, expect a day of interviews, often involving multiple team members. This may include a mix of technical deep-dives on a whiteboard, architectural design discussions, and behavioral interviews. The goal is to give you a comprehensive look at the team while allowing us to assess your technical problem-solving skills in a collaborative environment.

This timeline illustrates the progression from initial screening to deeper technical assessments. You should use this structure to pace your preparation, ensuring you are ready for both high-level discussions about your experience and granular, whiteboard-style technical tasks.

Operating Systems & Low-Level Concepts

Because Peraso develops wireless chipsets, understanding what happens "under the hood" is essential. We look for candidates who understand how code executes on hardware.

Be ready to go over:

• Memory Management – Techniques for allocation, deallocation, and debugging leaks.
• Concurrency – Using locks, semaphores, and managing race conditions.

As a Software Engineer, you will be responsible for developing, maintaining, and testing software that bridges the gap between hardware and high-level applications. You will likely work on driver development, firmware integration, or system-level testing to ensure that our 60GHz wireless products deliver the performance expected by our customers.

Collaboration is at the heart of our engineering culture. You will work closely with hardware engineers to debug system issues and with product teams to refine features. A typical week may involve writing low-level code, participating in code reviews, developing test cases for new chipset features, and troubleshooting performance bottlenecks in a lab environment.

We look for engineers who have a strong grasp of computer architecture and a passion for embedded systems.

• Must-have skills: Proficient in C/C++, strong understanding of OS fundamentals (threads, memory, processes), and experience with data structures.
• Nice-to-have skills: Experience with embedded systems, knowledge of wireless communication protocols (like 802.11), and experience with ASIC or chipset development.
• Experience: We value both academic projects and industry experience that demonstrates an ability to solve complex technical problems in a structured way.

Q: How difficult are the technical interviews? The difficulty is generally considered average. We focus on foundational knowledge rather than "trick" questions, prioritizing your ability to think through problems logically.

Q: Should I prepare for whiteboard coding? Yes. Even if you are a senior engineer, be prepared to write code on a whiteboard or a shared document. Focus on clarity, syntax correctness, and explaining your thought process.

Q: What is the best way to stand out? Successful candidates demonstrate a genuine interest in wireless technology and show they can receive constructive feedback during the technical portion of the interview.

Q: How long does the process take? The timeline varies, but we aim to move candidates through the stages efficiently. Keep an open line of communication with your recruiter regarding your status.

• Talk through your logic: If you get stuck, don't stay silent. Share your thought process, as your interviewer may provide helpful hints to guide you toward the solution.
• Know your resume: Be prepared to explain any project listed on your resume in great detail, including the challenges you faced and the specific technical decisions you made.
• Study the fundamentals: Do not skip the basics. A deep understanding of OS concepts and C++ fundamentals is often more important than memorizing complex algorithms.
• Be professional: Treat the interview as a two-way conversation. Prepare thoughtful questions for your interviewers about the team's current projects or the company's future direction.

The Software Engineer role at Peraso offers a unique opportunity to work on cutting-edge wireless technology that powers the next generation of connectivity. By focusing on your core technical fundamentals, practicing your communication skills, and remaining open to feedback during your technical sessions, you will be well-positioned to succeed in our interview process.

You can explore additional interview insights, practice questions, and preparation resources on Dataford. Remember that our interviews are designed to be a learning experience, so approach them with confidence and curiosity. We look forward to potentially working with you to push the boundaries of wireless performance.

The salary module above provides insight into compensation expectations for this role. Candidates should interpret these figures as general market ranges and understand that final offers are determined by a combination of experience, technical proficiency, and specific team requirements.