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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full-Stack Senior Software Engineer, Ai-Powered Sales Platform - **Company:** Aircall - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Cloud Computing, Software Quality, Code Review, Software Debugging, Node.Js, Performance Tuning, Software Deployment, Software Engineering, Systems Architecture, TypeScript, ReactJS, Reliability of Systems, Backend, Front End Software Development, Code Restructuring - **Published:** July 22, 2026 - **Apply:** https://www.buscojobs.com.es/full-stack-senior-software-engineer-ai-powered-sales-platform-en-madrid-ID-364962943 ## About the Role At least 3 years of professional experience in full?stack development Experience with AWS services and cloud?based architectures Deep understanding of software development practices, scalable system architecture, security best practices and cloud?based platforms Exceptional analytical and problem?solving skills, with the ability to effectively troubleshoot complex issues Excellent communication and collaboration skills; you thrive working closely with product managers, designers, and cross?functional teams Comfortable working in a fast?paced, dynamic environment with evolving priorities Fluency in English is required; Spanish is a plus. ## Description 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.Presente su candidatura después de leer los siguientes requisitos de habilidades y cualificaciones para este puesto.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.The RoleWe are building a new team from the ground up to work on an ambitious new product in a fast?moving, competitive market.This product will leverage Aircall's core strengths in voice and AI to transform how sales teams operate, helping them work faster, smarter, and more effectively at scale.As one of the first engineers on this team, you'll have significant ownership and influence over the technical direction and product development.We're looking for engineers who are excited to build 0?to?1, thrive in ambiguity, and want to grow with the team, whether that means deepening technical expertise or eventually stepping into technical leadership and management roles as we scale.Responsibilities at AircallCollaborate closely with product managers, designers, and other stakeholders to translate requirements into technical solutionsHave key responsibilities within the design, architecture, and end?to?end delivery of features across the full stackBuild and maintain frontend interfaces with React and backend services with Node.js and TypeScriptWrite clean scalable code and test and deploy applications and systemsRevise, update, refactor, and debug codeParticipate in code reviews to ensure code quality and share knowledge.Be part of an engineering organization delivering high quality, secure, voice solutions to Aircall clientsInvolvement in product and platform performance optimization and live site monitoringParticipate in an on?call rotation to respond to critical system issues and ensure continuous system reliabilitySecurity is at the forefront of your mind in everything that you doWhat We're Looking ForAt least 3 years of professional experience in full?stack developmentExperience with AWS services and cloud?based architecturesDeep understanding of software development practices, scalable system architecture, security best practices and cloud?based platformsExceptional analytical and problem?solving skills, with the ability to effectively troubleshoot complex issuesExcellent communication and collaboration skills; you thrive working closely with product managers, designers, and cross?functional teamsComfortable working in a fast?paced, dynamic environment with evolving prioritiesFluency in English is required; Spanish is a plus.Why join us?Key moment to join Aircall in terms of growth and opportunitiesOur people matter, work?life balance is important at AircallFast?learning environment, entrepreneurial and strong team spirit45+ Nationalities: cosmopolite & multi?cultural mindsetCompetitive salary package & benefitsDE&I StatementAt 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.We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses.These tools assist our recruitment team but do not replace human judgment.xcskxlj Final hiring decisions are ultimately made by humans.If you would like more information about how your data is processed, please contact us.#J-*****-Ljbffr ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Stop using Node.js like in 2020! 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