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Staff AI Software Engineer

Aircall· Engineering
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Hybrid (Madrid)€80k - €120kPermanent Full Time EmployeePosted 8mo ago

About the role

Aircall is seeking a Staff AI Software Engineer to design, develop, deploy, and operate AI-driven features that add customer value, with a focus on quality, observability, and mentoring within the engineering teams. The role is based in Madrid, hybrid work, and involves working with Node.js/Typescript back-end stacks hosted on AWS, integrating with CRM/Helpdesk/E-Commerce tools.

Responsibilities

  • Own key responsibilities in the design, architecture, and end-to-end delivery of AI-driven modules.
  • Propose innovative solutions by staying ahead of AI landscape trends and emerging technologies.
  • Create, design, develop, test, and monitor your code in production autonomously and reliably.
  • Collaborate with product managers, designers and other engineers to offer pragmatic solutions to real world problems and implement them end to end.
  • Work with your team to design solutions and be accountable for their execution.
  • Obtain a good understanding of the business to provide relevant solutions to users and clients.
  • Mentor and promote tech growth within the teams.
  • Stay up-to-date on new technologies and architectures, demonstrate good judgment in their potential applications.
  • Participate in an on-call rotation to respond to critical system issues and ensure continuous system reliability.

Qualifications

  • At least 5+ years experience in software development, using TypeScript & NodeJS/Python/Ruby/Rails or other languages, with a focus on security, scalability, availability, and performance.
  • AI experience is a must: strong knowledge of LLMs and hands-on experience building with them including usage, prompting and model integration.
  • Proven understanding and direct experience with Agentic AI systems, including designing, developing, and deploying AI Agents and MCP prototype/servers.
  • Familiarity with AI frameworks (e.g., LangChain, LlamaIndex, AutoGen) and modern AI architectures such as RAG, vector databases, reranking, and performance optimization.
  • Experience working on frontend applications is a big plus, preferably with React.
  • Nice to have: AWS production environment experience for high volume/high availability services.
  • Value code simplicity, quality, performance and maintainability.
  • Ability to design pragmatic & simple architectures to solve problems at scale.
  • Effective and proactive communication skills and collaboration across roles.

Skills

Required:TypeScriptNode.jsAI / LLMsAgentic AI systems
Nice to have:PythonLangChain / LlamaIndex / AutoGenFrontend (React)

Benefits

  • Competitive salary package & benefits
  • Hybrid work arrangement
  • Growth opportunities in a fast-moving, product-driven environment
Last updated Jul 1, 2026. Interested? Apply on the company site.
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About Aircall

AI-powered customer conversations made easy

Aircall is more than a business phone—it’s an integrated customer communications and intelligence platform. Achieve more with AI Agents, data-driven insights, and automation.

Customer CommunicationsAIAutomationCRM IntegrationHelpdeskVoIPCloud-based
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