Head of Technical Support

📍 London (Hybrid — 2 days onsite) 🕒 Permanent | Start ASAP We’re Making Travel Effortless. Join Us. Travel is essential, whether it’s visiting family, starting a new adventure, or taking a career defining trip. Yet today, over 4 billion airline passengers rely on tech that hasn't changed in decades. At Duffel, we’re rebuilding the infrastructure underpinning the global travel industry. Backed by top-tier investors (Benchmark, Blossom, Index Ventures, and Kima Ventures) and born out of Y Combinator (S18), we’re simplifying complex systems to build the future of travel About the role As Head of Technical Support, you’ll lead our team of Technical Support Engineers and take responsibility for the quality, effectiveness and development of the function. You’ll build a team that combines strong technical investigation with clear, thoughtful customer communication. You’ll coach engineers, establish effective ways of working and ensure customers receive dependable support as their integrations grow in complexity and scale. You’ll stay close to the work: reviewing investigations, helping with significant escalations and understanding where our products or processes create friction. Your impact will come from strengthening the whole team’s ability to resolve problems and turning what we learn from support into lasting improvements. You’ll work closely with Engineering, Product, Partner Engineering, Partner Management and Travel Operations. Technical Support owns day-to-day API questions, troubleshooting and the customer support response to technical incidents. Partner Engineers own strategic technical relationships and solution architecture; Implementation Managers own implementation programmes. What you’ll do Lead and develop the team. Set clear expectations, provide regular coaching and feedback, support career development and address performance issues constructively. Hire and onboard engineers as the team grows. Own support quality. Establish standards for technical investigation, written communication, case ownership and follow-through. Ensure customers understand what is happening, what comes next and who is responsible. Build a dependable support operation. Improve triage, prioritisation, queue management, handovers and escalation paths. Plan staffing and coverage around customer needs and agreed service commitments, with a sustainable workload for the team. Strengthen technical capability. Help engineers investigate API behaviour, interpret logs and request traces, reproduce integration issues and distinguish customer configuration problems from platform or supplier issues. Lead significant customer escalations. Coordinate the support response, establish customer impact and keep communication clear through to resolution. Work with Engineering on diagnosis and recovery, involving Partner Engineering where an issue creates a wider strategic risk. Make collaboration effective. Give Engineering actionable escalation reports with evidence, reproductio