Senior Fullstack Engineer

Aircall Madrid, Community of Madrid, Spain Join or sign in to find your next job Join to apply for the Senior Fullstack Engineer - Madrid role at Aircall Aircall Madrid, Community of Madrid, Spain Join to apply for the Senior Fullstack Engineer - Madrid role at Aircall Get AI-powered advice on this job and more exclusive features. Aircall is the world's leading integrated customer communications and intelligence platform for growing businesses. Trusted by over 20,000 companies worldwide, Aircall unifies voice and digital channels into one seamless platform, offering one-click integrations with leading CRMs and over 100 business tools. With real-time, AI-powered insights and feedback, AI agents, and automation, we help sales and support teams save time on routine tasks, uncover opportunities, and deliver exceptional customer experiences. With a global team of 600+ across nine offices, Paris, New York, San Francisco, Sydney, Madrid, London, Berlin, Seattle, Mexico City, Aircall is transforming how businesses connect with their customers, driving smarter conversations, deeper relationships, and measurable success. How We Work at Aircall: At Aircall, we believe in customer obsession, continuous learning, and delivering extraordinary outcomes. We value open collaboration, taking ownership, and making smart, informed decisions with speed and precision. If you thrive in a fast-paced, team-driven environment where curiosity, trust, and impact matter, you'll fit right in We are looking for an engaged and passionate Senior Software Engineer to join our growing Engineering Team. As a Senior Software Engineer, you will be responsible for the design, development, deployment, and operation of business-critical features that add customer value on top of Voice. Best practices, evangelization, and mentoring in your team and across the whole of Engineering will be part of your day to day job. Quality, excellence, and agility drive our delivery processes and you will help us level these up. Using a variety of back-end stacks, appropriate for each requirement, but always hosted on AWS, we build added value and resilient services on top of voice and AI capabilities, and fully integrated with our customers' business critical tools (CRM, Helpdesk, E-Commerce, ...). Your mission @ Aircall: Participate in requirements analysis to help with providing the right technical and business solutions for our customers Have key responsibilities within the design, architecture, and end-to-end delivery of key modules Write clean scalable code and test and deploy applications and systems Revise, update, refactor, and debug code Be part of an engineering organization delivering high quality, secure, voice solutions to Aircall clients Involvement in product and platform performance optimization and live site monitoring Participate in an on-call rotation to respond to critical system issues and ensure continuous system reliability Mentor team members A little about you: You have at least 5+ years of experience in backend development with preferably a typed language (Typescript/Node.js, Java, Scala) with a focus on delivering for security, scalability, availability, and performance You have at least 2+ years of experience working on frontend applications, preferably with React, but experience with Angular is also valued. You have experience with distributed systems, microservices or serverless architectures. You have worked extensively with AWS in a production environment and understand how to design for, deploy on and get the best out of, the environment and services provided by Amazon You can talk easily and spontaneously about most of the offerings on AWS, when to use them, and how, and can explain to junior engineers Security is at the forefront of your mind in everything that you do Aircall is constantly moving forward. We're building new roads to complete our journey, and we're taking people with us who have the same builder mentality. Let's grow together: Aircall is a place for those who dare to be bold and seek responsibility, excellence, and the opportunity to push themselves to new heights. We're creating a place where great people trust one another and thrive together. People flourish at Aircall and now is the time to be part of the team and the journey we're on. 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. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at Aircall by 2x Get notified about new Full Stack Engineer jobs in Madrid, Community of Madrid, Spain . 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