Senior Software Engineer - Madrid

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Senior Software Engineer - Madrid, Madrid col-narrow-left

Client : Aircall

Location : Madrid, Spain

Job Category : Other

EU work permit required : Yes

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Job Views : 3

Posted : 12.06.2025

Expiry Date : 27.07.2025

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Job Description : Aircall is a place where voices are valued. Backed by over $220 million of investment since 2015, we create technology that fuels accessible, transparent, and collaborative communication to empower our base of 18,000+ customers (and growing) to make authentic, human connections.

Conversation is a cornerstone of our culture. Wherever our people find themselves in the Aircall world — Paris, New York, San Francisco, Sydney, Madrid, London, Berlin, or at home — everyone has a voice that is valued. Whatever your background, wherever you're from, we want you to join the conversation. Let's talk.

We are looking for engaged and passionate Senior Software Engineer to join our growing engineering department and be part of our Authentication team in EMEA. As a Senior Software Engineer , you will be responsible for the design, development, deployment, and operation of business-critical features that add customer value. Operational excellence, metrics, observability, best practices, evangelization, and mentoring within your team and across Engineering will be part of your daily responsibilities. Quality, excellence, and agility drive our delivery processes, and you will help us improve these areas.

Using NodeJS and TypeScript back-end stacks, hosted on AWS, we build resilient services that integrate with our customers' critical tools (CRM, Helpdesk, E-Commerce, etc.). On the Authentication & Authorization team, we work with SAML, SSO, OAuth, granular permission systems, and GraphQL as Backend for Front-end (BFF). Our architecture is serverless, based on AWS services such as Lambda, Cognito, SNS, SQS, DynamoDB, ApiGateway, etc.

Your mission @ Aircall :

Be part of an engineering organization delivering high-quality, secure, and scalable solutions to Aircall clients

Write clean, scalable code using TypeScript, test, and deploy applications and systems

Participate in requirements analysis, solution design, architecture, and end-to-end delivery of key modules to provide business solutions

Optimize product and platform performance and monitor live site metrics

Mentor junior team members

A little about you :

You have at least 7+ years of experience in back-end development, using TypeScript & NodeJS, focusing on security, scalability, availability, and performance

You have extensive experience with AWS in a production environment, preferably for high-volume, high-availability services, and understand how to design, deploy, and optimize on AWS

You are rigorous with code quality and engineering best practices (testability, maintainability), familiar with tools such as Jira, Confluence, GitLab, GitHub, etc.

You practice Clean Code, Clean Architecture, TDD, BDD, and CI / CD methodologies

You have effective communication skills and can collaborate with diverse roles

Experience with Domain Driven Design is a plus

Aircall is constantly evolving. We are building new paths and looking for people with a builder mentality. Join us to grow together. We value boldness, responsibility, excellence, and the drive to push limits.

Why join us?

Significant growth and opportunities

Our people matter; work-life balance is prioritized

Fast-learning environment with strong team spirit

Diverse, multicultural team with 45+ nationalities

Competitive salary and benefits

DE&I Statement : At Aircall, we believe diversity, equity, and inclusion are core to our success. We promote active inclusion to foster a sense of belonging and provide equal opportunities for growth and development. We are committed to continuous improvement in these areas.

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