Be ready to go over:

• String & Array Manipulation – Common operations, pointer techniques, and hash map applications.
• Recursion & Backtracking – Implementing recursive solutions and analyzing their call-stack overhead.
• Time & Space Complexity – Accurately calculating Big O notation for your solutions and proposing optimizations.
• Advanced concepts (less common) – Graph traversal algorithms, dynamic programming, and custom data structure implementation.

Example questions or scenarios:

• "Given an input string, write a function to count and print the occurrences of each character, optimizing for O(N) time complexity."
• "Implement the Two Sum algorithm and explain how you would modify it if the input array was already sorted."

As a Software Engineer at Natera, your primary responsibility is to design, develop, and maintain the software components that power the company's advanced genetic testing services. This includes writing clean, robust, and unit-tested code for the custom Laboratory Information Management System (LIMS), which coordinates complex lab instruments, sample tracking, and genomic data processing. You will work closely with cross-functional teams, including product managers, quality engineers, and laboratory scientists, to translate clinical and operational requirements into scalable software features.

In addition to feature development, you will play a key role in ensuring system reliability and performance. This involves debugging complex production issues, performing root cause analyses, and optimizing database queries to handle large-scale genomic datasets. You will also participate in code reviews, contribute to technical specifications, and ensure that all software complies with strict healthcare regulations, such as HIPAA and Protected Health Information (PHI) security standards.

To be successful as a Software Engineer at Natera, you need a solid foundation in modern software engineering practices, particularly within enterprise backend development. The hiring team looks for candidates who combine strong technical skills with a highly collaborative mindset.

• Must-have skills – Strong proficiency in Java and open-source frameworks like Spring or Spring Boot. Extensive hands-on experience with relational databases, SQL query writing, and ORM frameworks such as Hibernate or JPA. A solid understanding of Linux environments, command-line operations, and shell scripting is also required.
• Nice-to-have skills – Experience with front-end technologies like React, Javascript, or JSP. Familiarity with containerization tools like Docker and Kubernetes, as well as message brokers like Apache Kafka or AWS SQS. Experience working in regulated industries (such as healthcare or finance) is highly valued.
• Experience level – Typically, a BS in Computer Science or equivalent practical experience, along with 3 to 5+ years of experience developing complex, multi-tier distributed systems.
• Soft skills – Strong communication skills, a proactive approach to troubleshooting, and the ability to work effectively with cross-functional teams across multiple time zones.

Q: What is the primary technology stack used by the engineering team? The backend is primarily built on Java and the Spring framework (including Spring Boot and Spring Core), with Hibernate/JPA for data access. Relational databases (such as PostgreSQL or MySQL) are heavily used, and frontend development typically leverages React.

Q: Do I need a background in biology or genetics to work at Natera? No, a biology background is not required for this role. Natera values core software engineering excellence, problem-solving ability, and database expertise; any domain-specific knowledge will be taught on the job.

Q: What should I expect during the live coding rounds? Live coding rounds typically focus on data structures, algorithms, or basic practical tasks (like string manipulation). Be prepared to write code in a shared text editor or Google Doc without IDE features like auto-complete or built-in compilation.

Q: How long does the entire interview process take? The process can take anywhere from three weeks to two months, depending on team availability and scheduling coordination. It is common to have multiple technical panel interviews spread out over several weeks.

Q: Is there a system design round for Software Engineer roles? Yes, mid-to-senior level candidates should expect at least one system design round. This round focuses on your ability to architect scalable, distributed systems, define API contracts, and choose appropriate storage solutions.

• Practice Coding in Plain Text – Since many technical rounds use Google Docs or basic text editors, practice writing clean Java code without syntax highlighting, auto-formatting, or auto-complete. Focus on maintaining consistent indentation and clear logic.
• Brush Up on Raw SQL – Do not rely solely on Hibernate or ORM abstractions. Be ready to write raw SQL queries involving JOINs, GROUP BY, and aggregations, as direct database query skills are heavily tested.
• Understand Spring Bean Scopes – Be prepared to explain core Spring concepts clearly, such as the difference between singleton and prototype scopes, and how the framework manages dependency injection.
• Be Proactive with Communication – Keep in touch with your recruiter throughout the process, especially if you experience delays in scheduling or feedback, as the internal coordination can sometimes be slow.
• Explain Your Trade-offs – During system design and coding rounds, always explain why you chose a specific data structure or architectural pattern over another. Interviewers value your decision-making process just as much as your final solution.

Joining Natera as a Software Engineer offers a unique opportunity to apply your technical skills to work that has a direct, positive impact on human health. By building and optimizing the software systems that process vital genetic data, you will help deliver life-changing diagnostic insights to patients and physicians worldwide. The role combines the technical challenges of high-scale backend engineering with a deeply meaningful mission.

To succeed in the interview process, focus on mastering core Java fundamentals, writing clean SQL queries, and structuring your system design solutions systematically. While the process is rigorous and requires thorough preparation, approaching each round with a clear, collaborative, and problem-solving mindset will set you up for success.

Candidates can explore additional interview insights, detailed company reviews, and targeted preparation resources on Dataford to further refine their approach.

The salary data displayed above reflects the estimated base compensation ranges for engineering roles at Natera. When evaluating an offer, keep in mind that total compensation also includes performance bonuses, equity awards, and comprehensive health benefits. Your specific offer will depend on your experience level, technical performance during the interview, and the specific team alignment.