Madrid, Community of Madrid, Spain · On-site
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 …
Skills: Backend development, CI/CD pipelines, GitLab CI, AWS, Docker
Madrid, Community of Madrid, Spain · On-site
Company Description MET Group is an integrated European energy company headquartered in Switzerland, active across the full value chain - generation, storage, LNG, trading and sales. Present in 24 countries and 33 nation…
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Madrid, Community of Madrid, Spain · Hybrid
$65k–$80k/yr
Company Description Nexthink is the leader in digital employee experience management software. The company provides IT leaders with unprecedented insight allowing them to see, diagnose and fix issues at scale impacting e…
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Madrid, Community of Madrid, Spain · Remote Solely
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Madrid, Community of Madrid, Spain · On-site
At ThetaRay, our purpose is to make the world a safer place by protecting the integrity of the global financial system. We do this by putting AI at the core of both our technology and our way of working. Our AI-driven so…
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Madrid, Community of Madrid, Spain · Hybrid
We are knowmad mood! ¿Te interesa construir una plataforma de IA desde cero que vaya a transformar la forma en la que desarrolla software una compañía líder? Buscamos un/a Líder Técnico de IA con background en .NET que p…
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Madrid, Community of Madrid, Spain · Hybrid
Hey there! We’re Fever, the world’s leading tech platform for culture and live entertainment. Our mission? To democratize access to culture and entertainment. With our proprietary cutting-edge technology and data-driven …
Skills: Product training, Technical content creation, Documentation, Customer education, AI tools
Madrid, Community of Madrid, Spain · Hybrid
Estamos buscando un/a Técnico/a Junior de Gestión de Identidades y Accesos (IAM) con interés en desarrollarse profesionalmente en el ámbito de la ciberseguridad y la gestión de acceso. Requisitos Entre 2 años de experien…
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Madrid, Community of Madrid, Spain · Hybrid
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Madrid, Community of Madrid, Spain · On-site
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Madrid, Community of Madrid, Spain · Hybrid
We are knowmad mood! Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Nacimos para provocar un cambio real a través de la innovación y el desarrollo sostenibl…
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Madrid, Community of Madrid, Spain · Hybrid
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Madrid, Community of Madrid, Spain · Hybrid
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Madrid, Community of Madrid, Spain · Hybrid
¿Te imaginas participando en la transformación de las principales organizaciones nacionales e internacionales? En Deloitte estamos comprometidos con generar un impacto en la sociedad, en nuestros clientes y en ti. En Del…
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Madrid, Community of Madrid, Spain · On-site
About Atos Group Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for…
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Madrid, Community of Madrid, Spain · Hybrid
¿Te imaginas participando en la transformación de las principales organizaciones nacionales e internacionales? En Deloitte estamos comprometidos con generar un impacto en la sociedad, en nuestros clientes y en ti. En Del…
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Madrid, Community of Madrid, Spain · Hybrid
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Madrid, Community of Madrid, Spain · Hybrid
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Madrid, Community of Madrid, Spain · Hybrid
¿QUÉ ES TELEFONICA TECH? Telefónica Tech es la compañía líder en trasformación digital del Grupo Telefónica. Contamos con una amplia oferta de servicios y soluciones tecnológicas integradas de Ciberseguridad, Cloud, IoT,…
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Madrid, Community of Madrid, Spain · On-site
Location: Madrid, Spain Job ID: R0139207 Date Posted: 2026-08-04 Company Name: HITACHI ENERGY SPAIN, S.A.U. Profession (Job Category): Data Analytics/Business Intelligence Job Schedule: Full time Remote: No Job Descripti…
Skills: Azure, Terraform, DevSecOps, Infrastructure as Code, Azure DevOps
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Design and build highly scalable, secure backend services while maintaining robust CI/CD pipelines and automated testing. Lead initiatives to optimize distributed systems in AWS and ensure high-quality, real-time communications infrastructure.
Requires solid experience in backend development, CI/CD, and containerized environments like Docker and Kubernetes. Candidates must have a strong understanding of RTC/VoIP architectures and protocols such as SIP and RTP.
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.
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 Programmable Communications Team is responsible for all technology aspects related to the voice and messaging infrastructure of Aircall products. The team works to deliver high-quality and real-time communications to our users while operating in all areas at carrier-grade expectations (stability, maintainability, scaling, and uptime). Our shared ambition is to provide the best voice and messaging infrastructure for Aircall customers and help other Aircall engineering teams deliver as much value as possible on top of it.
Design and build highly scalable and secure backend services, ensuring high availability, performance, and security to support high-volume workloads
Design and maintain robust CI pipelines (GitLab CI), release workflows, and automated testing to implement continuous delivery best practices in production environments.
Debug and optimize the application's performance, focusing on memory leaks and CPU usage in a desktop environment, critical for maintaining a high audio quality during calls.
Operate, monitor, and optimize distributed systems in AWS production environments
Lead initiatives to improve the reliability, resilience, and performance of our distributed systems, from design through production operation.
Apply a deep understanding of RTC / VoIP architectures and protocols
Participate in an on-call rotation to respond to critical system issues.
You have solid experience building backend services with a strong focus on security, scalability, availability, and performance.
You have strong knowledge of CI/CD pipelines, infrastructure-as-code, automated testing, and deployment best practices.
You have hands-on experience with GitLab CI/CD (or similar), release workflows, code reviews, and continuous delivery in production.
You are proficient in working in containerized environments (Docker, Kubernetes).
You have experience operating and optimising systems in AWS production environments, ideally supporting high-volume, high-availability workloads.
You have the ability to troubleshoot, monitor, and improve distributed systems running in production.
You have an understanding of RTC / VoIP architectures and protocols (SIP, RTP).
You are familiar with open-source SIP/RTC technologies such as FreeSWITCH, Kamailio, Asterisk, or similar.
You have exposure to media servers, signaling flows, or real-time communications debugging.
You stay current with modern development practices and tooling, including AI-assisted development tools, to maximize your productivity
You have strong communication skills and fluency in English (written and spoken).
You are autonomous, proactive, and comfortable owning features end-to-end.
You are pragmatic and have a willingness to experiment, iterate, and continuously improve systems.
🚀 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
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.
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. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
The collaborative, AI-powered customer communications platform. Trusted by more than 23,000 companies worldwide.
The collaborative, AI-powered platform for customer conversations. Trusted by more than 22,000 companies worldwide. Aircall seamlessly integrates voice, SMS, WhatsApp, and social media channels into a single platform, with bi-directional syncing across 200+ essential business apps. Imagine your CRM and Helpdesk data flowing effortlessly into every customer interaction, empowering your team to deliver smarter, more personalized experiences. Trusted by over 22,000 businesses globally, Aircall's AI-powered platform supercharges sales and support. We automate the busywork—optimizing call routing, automating repetitive tasks–while simultaneously delivering actionable insights from across every customer interaction. As a result, your teams are free to focus on what truly matters: building and maintaining customer relationships. Aircall is where your tech stack unites and your teams excel. We transform customer interactions into strategic opportunities, fueling growth and turning conversations into satisfied customers. With Aircall, every connection counts.
Offices: 600 Bellevue Way NE, Suite 200, Bellevue, Washington 98004, US · 44 W 28th St, New York, NY 10001, US · 11, Rue Saint-Georges, Paris, Île-de-France 75009, FR · Level 1, 12 O’Connell Street,, Sydney, NSW 2000, AU · Calle Lago Alberto 375, Miguel Hidalgo, Mexico City 11320, MX
There are currently 2,597 open software positions in Madrid, Spain listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Grupo TECDATA Engineering, knowmad mood, Capgemini, Indra Group USA, Telefónica Tech, among others. Browse the listings above to see every active employer.
Yes — 1967 of the 2597 open software positions offer remote or hybrid work (539 remote, 1428 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
