Peek Backend Engineer interview questions & guide 2026

The following questions are representative of the patterns observed in our hiring process. While specific inquiries may shift based on your experience level and the team you are interviewing with, these categories highlight the core competencies we assess.

Technical Implementation & Problem Solving

This category focuses on your ability to write clean, maintainable code and your deeper understanding of how your solutions function in production.

• What was the reasoning behind the specific architectural choices in your technical assessment?
• How does your code implement idempotency to ensure system reliability?

Preparation at Peek is not about rote memorization; it is about demonstrating how you think and how you solve real-world engineering problems. Approach your preparation as a professional dialogue where you showcase your technical reasoning and your alignment with our collaborative culture.

Technical Proficiency – We look for evidence that you can write clean, efficient code and explain the "why" behind your design decisions. Be prepared to discuss the trade-offs you made in your technical assessments and how your code handles edge cases.

Communication & Collaboration – Engineering at Peek is a team sport. We evaluate how you articulate your thought process and how you handle feedback from peers. Showing that you can explain complex technical concepts to non-technical stakeholders is a significant advantage.

Adaptability – Our environment evolves quickly. We look for engineers who remain calm under pressure and can pivot their strategy when requirements change or when facing unexpected technical hurdles.

Our interview process is designed to be streamlined, efficient, and transparent. We view the process as a two-way conversation to determine if we are a good fit for each other, rather than a series of hurdles to "weed out" candidates. You can expect a professional, supportive experience where you are kept well-informed of your status at every stage.

The timeline above reflects a typical progression from initial screening to final offer. Candidates should interpret this as a roadmap for managing their energy and preparation, focusing on deep dives during technical reviews and behavioral alignment during manager chats.

Technical Assessment & Code Review

This is the cornerstone of our technical evaluation. We want to see how you approach a real-world coding challenge and, more importantly, how you defend your implementation.

Be ready to go over:

• Architectural Logic – The reasoning behind your choice of patterns or frameworks.
• Error Handling – How your code behaves under stress or failure conditions.

As a Backend Engineer at Peek, your primary responsibility is to develop and maintain the services that support our booking infrastructure. You will be responsible for the full software development lifecycle of the features you own, from initial design and implementation to testing and deployment.

You will collaborate daily with product managers to define technical requirements and with fellow engineers to perform code reviews and architectural planning. You will be expected to proactively identify technical debt and suggest improvements to our existing infrastructure, ensuring that our platform remains stable as we continue to scale.

We are looking for engineers who combine strong technical fundamentals with a pragmatic approach to problem-solving.

• Must-have skills: Proven experience in backend development, proficiency in languages used within our stack (such as Elixir or similar technologies), and a deep understanding of API development.
• Experience level: We value candidates who have demonstrated success in building and scaling backend systems in a professional, team-based environment.
• Soft skills: You must be an effective communicator who can work well in a remote or distributed team and who approaches team conflicts with maturity and a solution-oriented mindset.

Q: How long does the entire process usually take? The process is designed to be efficient, typically spanning a few weeks from the initial recruiter screen to the final offer, depending on scheduling availability.

Q: What differentiates a successful candidate? Successful candidates are those who can clearly explain the "why" behind their technical decisions and show a genuine curiosity for how their work impacts the broader business.

Q: Is the technical challenge timed? Typically, our technical challenges are take-home projects, allowing you to work in your own environment over several days, which helps us see your high-quality, thoughtful work.

• Own your code: During the technical review, don't just explain what your code does; explain why you chose one approach over another.
• Be honest about trade-offs: Every engineering decision has a trade-off. Acknowledging these shows maturity and seniority.
• Prepare for behavioral questions: Use the STAR method (Situation, Task, Action, Result) to provide structured, clear answers about your past experiences.
• Ask questions: Use your interviews to learn about our team culture, the specific challenges we are currently solving, and how we handle technical debt.

Joining Peek as a Backend Engineer offers the opportunity to build systems that facilitate incredible experiences for users worldwide. By focusing on your ability to articulate your architectural choices and demonstrating a collaborative, growth-oriented mindset, you will be well-positioned to succeed. Remember that our process is meant to be a conversation, and we encourage you to use this time to assess if our team is the right fit for your career goals.

Candidates can explore additional interview insights, practice questions, and preparation resources on Dataford. We wish you the best of luck in your preparation and look forward to potentially working with you.

The provided salary data reflects the current market range for this position. Candidates should interpret these figures as a guide based on seniority and total compensation expectations, keeping in mind that final offers are determined by individual experience and alignment with the role's requirements.