Duffel Engineering Manager interview questions & guide 2026

The questions below are representative of the patterns identified in recent Duffel interview experiences. Use these to identify your strengths and gaps in your preparation.

Behavioral and Leadership

These questions test your ability to navigate complex team dynamics, handle difficult management scenarios, and demonstrate self-awareness.

• Tell us about a time you had to make an unpopular decision.
• How do you reduce bias in the hiring process?

Preparation at Duffel requires a mindset shift from simply answering questions to demonstrating leadership potential. You should focus on articulating the "why" behind your decisions, as interviewers are looking for managers who can connect technical choices to business outcomes.

Role-Related Knowledge – You must be able to discuss your technical background with authority. Even as a manager, you will be expected to weigh in on architecture and trade-offs.

People Management & Hiring – Duffel places a high premium on team health and talent acquisition. Be ready to explain your philosophy on building inclusive teams and managing performance.

Strategic Thinking – Understand the product and the travel industry. Be prepared to discuss how your engineering decisions support the company’s long-term goals.

The interview process at Duffel is generally structured to assess both your technical competency and your leadership capabilities. You can typically expect an initial screening call with a recruiter, followed by conversations with hiring managers to align on team fit and expectations. The process then moves into more specific assessments, including management-focused discussions and technical deep dives.

This visual timeline illustrates the typical progression from initial screening to final-stage evaluations. Use this to pace your preparation, ensuring you have refreshed your behavioral examples before the management rounds and your architectural knowledge before the technical sessions.

People Management and Hiring

This area is fundamental to the Engineering Manager role. You will be evaluated on your ability to mentor reports, handle conflict, and build a sustainable, unbiased hiring pipeline.

• Conflict resolution – How you navigate team disagreements.
• Hiring philosophy – Your specific strategies for sourcing, interviewing, and reducing unconscious bias.
• Performance management – How you handle underperformance while maintaining morale.

As an Engineering Manager at Duffel, your primary responsibility is to enable your team to deliver high-quality software efficiently. You will act as a force multiplier, removing blockers and ensuring that technical debt is balanced against new feature development.

You will collaborate closely with product managers and cross-functional stakeholders to define the roadmap. This requires an ability to communicate complex technical constraints to non-technical stakeholders clearly. You will also be heavily involved in the growth of your team, which includes participating in recruitment, onboarding new talent, and fostering an environment where engineers feel empowered to do their best work.

A successful candidate for the Engineering Manager position at Duffel demonstrates a blend of deep technical roots and a passion for people.

• Must-have skills – Experience leading engineering teams, a strong background in software development, and the ability to articulate complex technical trade-offs.
• Nice-to-have skills – Experience in the travel or fintech sectors, hands-on experience with scaling infrastructure, and a proven track record in building and scaling engineering organizations from the ground up.

Q: How difficult are the technical interviews? The technical interviews are rigorous. Focus on having a deep understanding of system design principles rather than rote memorization of algorithms.

Q: What is the best way to prepare for the management interview? Prepare specific examples using the STAR method (Situation, Task, Action, Result) for behavioral questions, particularly those involving conflict or hiring.

Q: Does Duffel value culture fit? Yes, the company culture is a central pillar of their hiring process. Demonstrate alignment with their values of autonomy, speed, and clear communication.

• Communicate your thought process: In technical discussions, talk through your reasoning. Interviewers want to see how you approach problems, not just the final solution.
• Be prepared for ambiguity: Some interviewers may intentionally provide open-ended prompts. Use this as an opportunity to ask clarifying questions and show your structured thinking.
• Own your feedback: If you are asked for your opinion on a system, provide a balanced view that acknowledges the trade-offs of your suggested approach.

The Engineering Manager role at Duffel offers a unique opportunity to shape the future of travel infrastructure within a fast-moving, high-impact organization. By focusing on your ability to lead through complexity and demonstrating a clear, collaborative approach to technical challenges, you will be well-positioned to succeed.

You can explore additional interview insights, practice questions, and preparation resources on Dataford to further refine your strategy. Consistent practice and a clear understanding of your own management philosophy will serve you well throughout the process.

The compensation data provided above reflects the typical salary range and components for this role. Candidates should interpret these figures as a baseline, keeping in mind that total compensation may vary based on experience, location, and specific team needs. Use this data to calibrate your expectations and prepare for transparent discussions during the offer phase.