Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We’re redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace. Our momentum comes from a simple idea: help teams work smarter, not harder. Aircall’s AI Voice Agent automates routine calls, AI Assist streamlines post-call work, and AI Assist Pro delivers real-time guidance so people can do their best work. The result is higher revenue, faster resolutions, and teams that scale with confidence. Aircall is headquartered in Paris, our European HQ, with a strong North American presence anchored in Seattle, our North American HQ, and teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. We’ve built a product customers love and a business that’s scaling quickly, backed by world-class investors and driven by rapid AI innovation across multiple product lines. At Aircall, you’ll join a company in motion. We’re ambitious, product-driven, and execution-focused, with visible impact, fast decisions, and real growth. How we work at Aircall: We’re customer-obsessed, data-driven, and focused on delivering meaningful outcomes. We value ownership, continuous learning, and thoughtful speed. If you thrive in a collaborative, fast-moving environment where trust and impact matter, you’ll feel at home here. We're growing our team in Madrid and looking for a Customer Engineer who enjoys solving technical challenges, working directly with customers, and making a real impact on their success. If you love combining technology, problem-solving, and customer relationships, this role could be a great fit. As a Customer Engineer, you'll be the technical partner our customers rely on throughout their journey with Aircall. From onboarding and integrations to adoption and expansion, you'll help customers get the most out of our platform by translating technical concepts into practical business outcomes. You'll work closely with Account Executives, Account Managers, Solutions Engineers, Product, and Support, becoming a trusted advisor for a portfolio of customers.   RESPONSIBILITIES: Lead the technical onboarding and implementation of new customers, ensuring a smooth and successful go-live. Configure integrations and help customers connect Aircall with their existing tech stack. Drive product adoption by providing technical guidance and best practice recommendations to help customers maximize the value of the product. Support customers in adopting new features, including Aircall's AI products and advanced capabilities. Monitor customer health and proactively identify opportunities to improve adoption and engagement. Partner with Account Managers during renewals and expansion opportunities by providing technical expertise and product usage insights. Coordinate complex technical issues with Product, Engineering, and Support teams when needed. Work cross-functionally to improve customer experience and provide feedback that helps shape future product improvements. QUALIFICATIONS: We're looking for someone who enjoys working with both people and technology. You'll likely be successful if you have: 3+ years of experience in a customer-facing technical role such as Customer Engineer, Technical Account Manager, Solutions Consultant, Implementation Consultant, Customer Success manager or similar. Experience implementing SaaS solutions for mid-market or enterprise customers. Strong understanding of APIs, integrations, webhooks, cloud applications, and SaaS environments. Experience working with CRM platforms and business applications. Excellent troubleshooting and problem-solving skills. Strong communication skills and the ability to explain technical concepts to both technical and non-technical audiences. Good project management skills and the ability to manage multiple customer implementations simultaneously. A customer-first mindset with a proactive approach to solving problems. Fluency in English and Spanish is a must. (Italian is a plus) Why join us? 🚀 Key moment to join Aircall in terms of growth and opportunities 💆‍♀️ Our people matter, work-life balance is important at Aircall 📚 Fast-learning environment, entrepreneurial and strong team spirit 🌍 45+ Nationalities: cosmopolite & multi-cultural mindset 💶 Competitive salary package & benefits DE&I Statement:  At Aircall, we believe diversity, equity and inclusion – irrespective of origins, identity, background and orientations – are core to our journey.  We pride ourselves on promoting active inclusion within our business to foster a strong sense of belonging for all. We’re working to create a place filled with diverse people who can enrich and learn from one another. We’re committed to ensuring that everyone not only has a seat at the table but is valued and respected at it by providing equal opportunities to develop and thrive.   We will constantly challenge ourselves to make sure that we live up to our ambitions around diversity, equity and inclusion, and keep this conversation open. Above all else, we understand and acknowledge that we have work to do and much to learn. Want to know more about candidate privacy? Find our Candidate Privacy Notice here.