Wave Site Reliability Engineer interview questions & guide 2026

The visual timeline above illustrates the standard progression for the Site Reliability Engineer role. You should interpret this as a high-intensity journey that prioritizes practical, hands-on ability over abstract theory. While the timeline is generally consistent, the pace can vary depending on team capacity; expect to move through these stages with focus and preparation.

The following questions are representative of those asked during the Wave hiring process. They are designed to test your ability to think critically under pressure and apply your technical knowledge to real-world scenarios.

Technical Troubleshooting & Monitoring

These questions evaluate your ability to diagnose issues in production environments and your familiarity with standard observability tools.

• How would you approach debugging a service that is intermittently failing in a Kubernetes environment?
• Describe your strategy for setting up alerts that are actionable and reduce "alert fatigue."

Preparation at Wave requires a blend of deep technical mastery and a product-focused mindset. You should be prepared to explain not just how you solved a problem, but why you chose a specific trade-off.

Technical Proficiency – You must demonstrate hands-on experience with Kubernetes, cloud infrastructure, and CI/CD tooling. Interviewers will look for your ability to write clean, maintainable code and manage infrastructure as code.

Incident Management – This is core to the Site Reliability Engineer role. You should be ready to walk through your mental model for identifying, isolating, and resolving production outages, emphasizing clear communication during high-stress moments.

Collaborative Problem Solving – Wave values engineers who can work effectively with other teams. You will be evaluated on your ability to explain complex technical concepts to peers and your willingness to mentor others during the troubleshooting process.

Production Troubleshooting

This is the most critical evaluation area. You will be expected to demonstrate a systematic approach to debugging. Strong candidates move from broad observations to specific hypothesis testing.

Be ready to go over:

• Log analysis and correlation – How you aggregate logs from distributed systems.
• Metric-based alerting – Designing dashboards that tell a story about system health.
• Tooling mastery – Proficient use of standard observability stacks.

Example scenarios:

• "Walk us through a time you identified a bottleneck in a distributed system."
• "How would you investigate a 'zombie' process consuming memory in a container?"

As a Site Reliability Engineer, your day-to-day work centers on the reliability and scalability of Wave’s production infrastructure. You will spend significant time writing code to automate operational tasks, ensuring that manual toil is reduced across the engineering organization.

You will act as a bridge between development and operations. This means you will frequently consult with product teams on architectural decisions, ensuring that new features are built with reliability in mind from day one. You will also be responsible for maintaining the health of our Kubernetes clusters and refining the CI/CD pipelines that power our deployment cycles.

A strong candidate for this role possesses a deep understanding of distributed systems and a passion for automation.

• Must-have skills: Proficient in at least one scripting language (e.g., Python, Go), hands-on experience with Kubernetes, and a strong working knowledge of cloud-native infrastructure.
• Nice-to-have skills: Experience with service mesh technologies, security-focused infrastructure design, and active participation in open-source communities.

Q: How much time should I dedicate to the take-home assignment? A: While the assignment is meant to be completed in a few hours, invest the time necessary to make your solution robust. Quality and clarity of thought are prioritized over raw speed.

Q: Is the interview process strictly technical? A: No. While the technical rounds are rigorous, Wave places significant weight on how you communicate your findings and your ability to work within a team.

Q: What is the typical timeline for the interview process? A: The process usually spans 1–2 weeks, depending on your availability and the scheduling of the technical rounds.

• Explain your thought process: Even if you are unsure of the exact answer, talk through your logic. Interviewers value the path you take to reach a conclusion.
• Prepare for the review: When discussing your take-home assignment, be ready to defend your architectural choices and suggest improvements you would make if you had more time.
• Be ready for cross-functional scenarios: Think about how your technical decisions impact product timelines and user experience.

The Site Reliability Engineer role at Wave offers a unique opportunity to shape the infrastructure of a company that is fundamentally changing how small businesses manage their finances. By focusing on your ability to troubleshoot complex systems, automate manual processes, and communicate effectively, you position yourself as a strong candidate for this position.

Preparation is the key to success. You can explore additional interview insights, practice questions, and preparation resources on Dataford to sharpen your skills before your first screen. We encourage you to approach the process with curiosity and confidence, as your expertise is vital to our mission.

The salary data provided reflects typical ranges for this role, though actual compensation will vary based on your experience level, location, and the specific requirements of the team you are joining. Use these figures as a benchmark to manage your expectations and prepare for compensation discussions.