10x Genomics Embedded Engineer interview questions & guide 2026

Our questions are designed to test your practical knowledge and your ability to apply engineering principles to real-world problems. Expect a mix of whiteboard coding, technical theory, and behavioral deep dives.

Embedded Technical Questions

• Explain the difference between volatile, static, and const in C.
• How does an Interrupt Service Routine (ISR) interact with the main loop safely?
• Describe the process of booting a microcontroller from power-on to the main() function.

Success in the 10x Genomics interview process requires a balance of deep technical expertise and the ability to communicate complex ideas clearly. You should approach your preparation by focusing on the fundamentals of embedded systems while also being ready to discuss your past engineering decisions in high resolution.

We evaluate candidates across several core pillars:

Embedded Domain Expertise – We look for a mastery of C and C++, a solid understanding of RTOS or bare-metal environments, and the ability to interface with hardware peripherals like I2C, SPI, and UART. You should be prepared to discuss memory management, interrupt handling, and concurrency in resource-constrained environments.

Problem-Solving and Coding – Beyond embedded specifics, you must demonstrate strong algorithmic thinking. We assess how you structure code for readability, maintainability, and performance. You will be asked to solve coding challenges that reflect real-world engineering constraints rather than just theoretical puzzles.

Technical Communication – A unique aspect of our process is the deep dive into your previous work. We evaluate your ability to present a professional accomplishment, defend your technical choices, and explain the "why" behind your architecture. This shows us how you will collaborate and influence technical direction within our team.

Cultural Alignment and Drive – We value engineers who are technically curious, humble, and detail-oriented. We look for candidates who are passionate about our mission and demonstrate the resilience needed to work through the ambiguities of developing first-of-their-kind products.

The interview process for an Embedded Engineer at 10x Genomics is designed to be thorough and transparent, focusing on both your technical "floor" and your "ceiling." We aim to understand your foundational skills early on so that we can spend more time during the onsite rounds exploring your specialized expertise and how you solve complex, integrated problems.

You can expect a high level of engagement from our engineering leadership, including Hiring Managers and often Vice Presidents of Software. The process moves quickly, but it is rigorous. We place a significant emphasis on data and facts; our interviewers will often "double-click" on specific details of your past projects to understand your level of ownership and technical depth.

The timeline above outlines the typical progression from the initial recruiter screen to the final offer. The early stages focus on verifying your background and basic technical competency, while the virtual onsite is a comprehensive evaluation of your engineering maturity. Candidates should use this timeline to pace their preparation, ensuring they have their technical presentation polished well before the final stage.

Embedded Systems & Firmware

This is the core of the role. You must demonstrate that you can write code that is not only functional but also optimized for the specific constraints of our hardware platforms.

Be ready to go over:

• Memory Management – Stack vs. heap usage in embedded systems, memory-mapped I/O, and strategies to prevent fragmentation.
• Concurrency and Synchronization – Using mutexes, semaphores, and queues in an RTOS environment to manage shared resources safely.

As an Embedded Engineer at 10x Genomics, your primary responsibility is the design, development, and maintenance of firmware for our next-generation biological analysis instruments. You will spend a significant portion of your time writing high-quality C/C++ code, but your work extends far beyond the IDE. You will be a key player in hardware bring-up, working closely with electrical engineers to validate new boards and troubleshoot hardware-software integration issues.

Collaboration is central to this role. You will work with Product Managers to define technical requirements and with Systems Engineers to ensure that the firmware meets the rigorous performance standards required for biological assays. You are expected to contribute to the entire software lifecycle, from architectural design and coding to automated testing and field support.

In addition to feature development, you will drive initiatives to improve our development infrastructure. This might include building better simulation tools, improving our CI/CD pipelines for firmware, or implementing more robust diagnostic logging. At 10x Genomics, we value engineers who take a proactive approach to system reliability and are always looking for ways to make our instruments more robust and easier to maintain.

We are looking for engineers who have a solid foundation in computer science and a passion for low-level programming. The ideal candidate has experience working on complex systems where software and hardware are tightly coupled.

• Technical Skills – Proficiency in C and C++ is mandatory. You should have extensive experience with Microcontrollers (e.g., ARM Cortex-M), RTOS (e.g., FreeRTOS, Zephyr), and standard embedded debugging tools.
• Experience Level – Typically, we look for 3+ years of experience in embedded systems, though we value the depth of your projects over years of service. Experience in regulated industries (medical devices, aerospace, automotive) is a plus.
• Soft Skills – Excellent communication skills are essential, particularly the ability to explain technical concepts to non-firmware engineers. You should be comfortable navigating ambiguity and working in a fast-paced environment.

Must-have skills:

• Strong C/C++ programming for embedded systems.
• Experience with low-level drivers and hardware abstraction layers (HAL).
• Proficiency with lab equipment (oscilloscopes, multimeters).

Nice-to-have skills:

• Experience with Python for scripting and automation.
• Knowledge of FPGA interfacing or Verilog/VHDL.
• Background in biotech or life sciences instrumentation.

Q: How difficult are the coding challenges for embedded roles? A: The challenges are moderate to difficult. We focus on your ability to write clean C code and your understanding of bitwise operations and memory management rather than complex LeetCode-style dynamic programming.

Q: What is the culture of the Software Embedded team like? A: The team is technically driven and collaborative. There is a strong emphasis on "facts over beliefs," and engineers are encouraged to use data to support their design decisions. It is a professional environment where technical excellence is highly respected.

Q: How much preparation is needed for the technical presentation? A: You should spend significant time on this. It is often the centerpiece of the onsite interview. Ensure you can speak to every diagram and code snippet you show, as interviewers will ask probing questions.

Q: What is the typical timeline for the interview process? A: The process usually takes 3 to 5 weeks from the initial recruiter screen to a final decision, depending on scheduling availability.

• Master the Fundamentals: Be ready to explain basic C concepts in depth. Don't just know what a keyword does; know how the compiler treats it and how it affects the generated assembly.
• Be Data-Driven: During your presentation and technical Q&A, use specific metrics (e.g., "reduced latency by 20ms" or "decreased memory footprint by 15KB") to demonstrate the impact of your work.
• Handle Disagreements Gracefully: If an interviewer challenges your answer, listen carefully. If you believe you are correct, provide data to support your position, but remain professional and open to their perspective.

The Embedded Engineer role at 10x Genomics offers a rare opportunity to work on technology that is literally changing the world of medicine. From helping scientists understand the complexities of cancer to accelerating vaccine development, your firmware is the engine behind these discoveries. The interview process is your first step into this high-impact environment, and it is designed to find engineers who are as passionate about technical precision as we are.

To succeed, focus your preparation on the core pillars of embedded systems, refine your technical presentation, and be ready to demonstrate your problem-solving process in real-time. We are looking for peers who will challenge us and help us build better systems.

The salary data reflects the competitive nature of the Pleasanton, CA and Durham, NC markets. When reviewing these figures, consider the total compensation package, which often includes equity and benefits that reflect your contribution to the company's long-term success. Use this information to benchmark your expectations based on your experience level and the specific requirements of the role.

For more insights into the 10x Genomics culture and additional interview resources, explore the detailed company profiles on Dataford. We look forward to seeing how your expertise can help us drive the next century of biology.