20 publicaciones de empleo destacadas de javascript developer en madrid, md (¡Están contratando!)

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Aleph Holding —Madrid, Madrid provincia
- Jornada completa
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Taxfix —Madrid, Madrid provincia
- Horas extra
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- Jornada completa
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- Jornada completa
- Trabajo híbrido
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- Jornada completa
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knowmad mood —Madrid, Madrid provincia
- Teletrabajo
- Java
- JavaScript
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Omega CRM —Madrid, Madrid provincia
- Trabajo híbrido
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- Horas extra
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italki —Madrid, Madrid provincia
- Inglés
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Senior Cybersecurity Engineer - Ethical Hacking (CTF, Reverse Engineering, Antibot)
NielsenIQ —Madrid, Madrid provincia
- De 46.000 € a 70.000 € al año
- Jornada completa
- JavaScript
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Solicitud rápida
4d
Fullstack Angular - inglés C1 (100% teletrabajo)
knowmad mood —Madrid, Madrid provincia
- Teletrabajo
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- Inglés
- JavaScript
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Initiumsoft —Madrid, Madrid provincia
- Jornada completa
- Trabajo híbrido
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AI Builder, Emerging Talent - Italian Market
Salesforce —Madrid, Madrid provincia
- Jornada completa
- Informática
- Ventas
- Inglés
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- Jornada completa
- Azure
- AWS
- JavaScript
Solicitud rápida
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- Azure
- Oficina
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Process Street —Madrid, Madrid provincia
- Jornada completa
- Teletrabajo
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Solicitud rápida

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Senior Backend Developer

Aleph Holding -
Madrid, Madrid provincia

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Detalles del empleo

Contrato indefinido | Jornada completa

Cualificaciones

Microsoft SQL Server
NoSQL
Java
Arquitectura de microservicios
SQL
PHP
AWS
Docker
JavaScript
Desarrollo de software
Apache

Descripción completa del empleo

Are you ready to join our digital revolution journey?

At Aleph, we’re not just part of the digital advertising landscape—we’re shaping its future. Representing the world’s leading platforms, including TikTok, Amazon, Google, and nearly 55 others, we operate in 130+ markets across new and existing geographies.

Our mission is to empower advertisers and brands to unlock the full potential of these platforms' advertising capabilities. By fostering long-lasting partnerships, we create limitless opportunities for people and businesses to advertise effectively at both local and global levels.

With a presence spanning continents, Aleph offers you the chance to be part of a fast-growing, innovative team where your work makes a direct impact. If you’re ambitious, forward-thinking, and eager to thrive in a dynamic, global environment, Aleph is the perfect place to build your career.

We are seeking an experienced Senior Backend Developer who specializes in designing, building, and operating high-throughput, event-driven systems. In this role, you will be a key contributor to our core platform, making critical architectural decisions and mentoring other engineers. You'll be responsible for ensuring our asynchronous services communicate reliably, data flows seamlessly, and our entire ecosystem can scale to meet demand. If you are passionate about message queues, stream processing, and the patterns that make distributed systems work, this is the role for you.

Responsibilities:

Architect & Design: Design, develop, and maintain scalable and resilient event-driven microservices and data pipelines.
Build & Implement: Write clean, high-performance code in PHP. Knowledge of other languages is advantageous.
Manage Infrastructure: Own and operate the messaging infrastructure (e.g., Apache Kafka, RabbitMQ, AWS SQS/SNS) that powers our platform.
Ensure Reliability: Implement robust error handling, retries, and dead-letter queue (DLQ) strategies to guarantee data integrity and eventual consistency.
Observability: Instrument services with metrics, logs, and traces to ensure visibility and rapid troubleshooting in a complex distributed environment.
Mentorship & Leadership: Mentor mid-level and junior developers, conduct code reviews, and champion best practices for event-driven architecture (EDA).
Collaboration: Work closely with product managers, data scientists, and frontend engineers to build cohesive and powerful features.

Required Skills:

5+ years of professional experience in backend software development.
Deep, hands-on experience with designing and building event-driven systems and microservice architectures.
Proven expertise with at least one major messaging or streaming platform, such as Apache Kafka, RabbitMQ, AWS SQS/SNS, or Google Pub/Sub.
Strong proficiency in a modern backend programming language like PHP and Go. Other languages like JavaScript, Java, C
Experience with both SQL and NoSQL databases and a clear understanding of their trade-offs in a distributed environment.
Practical experience with containerization and orchestration technologies (Docker, Kubernetes).
Strategic thinking, leadership and mentoring, exceptional communication and presentation skills, ability to influence and persuade

In line with the EU Pay Transparency Directive, we are committed to fair and open compensation practices. For this role, the minimum gross annual base salary is EUR 40,000.

In addition to base salary, this role includes a variable component, paid annually. The final offer will reflect your experience, skills, and the scope of the role.

Why Join Us?

Aleph is a place of many cultures, perspectives, and talents. We support each other, creating an environment of giving and receiving. We value partnership and communication because we believe it takes a group of people to achieve great things. We are energized by our ever-changing industry, our curiosity keeps us learning and seeking out new opportunities.

We stay flexible and adaptable, and believe in moving with the speed of change. We encourage everyone to strive for more, providing our internal talent with growth opportunities and the ability to learn together.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. 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.

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