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# Backend Engineer

- **Company:** Aircall España
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Software Debugging, Performance Tuning, Software Deployment, TypeScript, Reliability of Systems, Backend, Cloudformation, Graphql, Terraform, Code Restructuring, Serverless Computing
- **Published:** July 17, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ You have at least 6+ years of experience in back-end development in a large scale, typed language, with experience in Typescript, with a focus on delivering for security, scalability, availability, and performance
 + You will 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.
 + You have experience working with serverless services using infrastructure as code like CloudFormation or Terraform.
 + Security is at the forefront of your mind in everything that you do.
 + And last but not least, if you have experience working with GraphQL it will be a huge plus!

## Description

As a Senior Backend 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 fully integrate with our customers' business critical tools (CRM, Helpdesk, E-Commerce, ...).
\n
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


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