Customer Success Engineer - API

DuffelLondon

On-site Full-time

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Experience Level

Experience

Qualifications

Strong problem-solving abilities and a keen interest in technology. Excellent communication skills, both written and verbal. Experience in technical support or customer success roles, preferably in a SaaS environment. Familiarity with APIs and their applications in enhancing user experience. A proactive approach to customer engagement and relationship building.

About the job

Join us in revolutionizing travel!

Travel is more than just a journey; it connects us with loved ones, opens up new adventures, and creates unforgettable experiences. Yet, the frustrations of travel can often overshadow the excitement. Over 4 billion airline passengers depend on outdated technology that fails to meet the expectations of today's connected traveler.

At Duffel, we are on a transformative mission to modernize the travel infrastructure. We aim to simplify complex systems and develop innovative tools that ensure a seamless travel experience for everyone.

As part of the Y Combinator S18 cohort, we are proudly backed by notable investors including Benchmark, Blossom, Index Ventures, and Kima Ventures, who have played a pivotal role in the growth of some of the world’s leading companies.

Position Overview

If you are passionate about customer success and excel at solving intricate technical challenges, this is the perfect opportunity for you. Duffel is seeking a Customer Success Engineer (CSE) to deliver expert technical support to our key clients. In this role, you'll assist customers by answering their inquiries and recommending effective ways to leverage our APIs to create outstanding travel experiences. Furthermore, you will work closely with various teams across Duffel, including Product, Engineering, Finance, and Travel Operations, to guarantee an exceptional customer journey with our products and services.

About Duffel

Duffel is dedicated to making travel effortless by innovating the technology that underpins the industry. By focusing on user-centric solutions, we aim to redefine how travelers interact with travel services, making journeys smoother and more enjoyable.

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Mar 12, 2026

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Software Engineer, Backend (London)

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Senior Backend Engineer at XYZ Reality | London

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