Senior Customer Success Engineer - API

Benefits

Parental leave

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Non-birth-parent leave

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Family-building benefits

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• Adoption assistance: Not verified
• Surrogacy assistance: Not verified

Mental health support

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Relocation assistance

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Childcare support

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Learning budget

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Salary

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Market context

U.S. role benchmark (BLS OEWS)

$78,856 U.S. median for this role

Projected growth (BLS Employment Projections)

+0.8% - Slower

Matched to SOC 11-1021 - Customer Success aggregate by role bucket.

Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.

Role

Role function

Customer Success From the posting source checked Jun 20, 2026

Seniority

Senior From the posting source checked Jun 20, 2026

Schedule

Shift type

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Weekend work

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Application

Cover letter

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Assessment

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Deadline

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Where they hire

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About this role

Senior Customer Success Engineer - API London We are making travel effortless. Join us. Whether it's to visit the people closest to us, starting an exciting adventure, or a career-defining business trip, travel is an essential part of our lives. Yet we've all experienced the aches and pains of getting to our destination. Today, more than 4 billion airline passengers rely on technology that hasn't kept up with the expectations of the modern connected traveller. That's why we've started to rebuild the infrastructure that underpins the travel industry. We're on a mission to unravel travel - simplifying systems and building the tools that will make the future of travel effortless. We were part of Y Combinator S18's cohort and we are backed by Benchmark, Blossom, Index Ventures and Kima Ventures. A fantastic set of investors that has helped build some of the world's largest companies. Overview If you have a passion for helping customers and solving challenging technical problems then this may be the role for you. Duffel is hiring a Customer Success Engineer (CSE) to provide expert technical support to our largest and most important customers. You will help our customers by addressing their current questions and suggesting ways to use our APIs to build the best travel experience for their users. Additionally, you will collaborate with a cross-functional group across Duffel including Product, Engineering, Finance, and Travel Operations to ensure a superior customer experience with both the product and the company as a whole. What we're looking for

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