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. If you're ambitious, forward-thinking, and eager to thrive in a dynamic, general environment, Aleph is the perfect place to build your career. Senior Backend Developer You'll be responsible for ensuring our asynchronous services communicate reliably, data flows seamlessly, and our entire ecosystem can scale to meet demand. Design, develop, and maintain scalable and resilient event-driven microservices and data pipelines. Write clean, high-performance code in PHP. Apache Kafka, RabbitMQ, AWS SQS/SNS) that powers our platform. Implement robust error handling, retries,



and dead-letter queue (DLQ) strategies to guarantee data integrity and eventual consistency. Mentor mid-level and junior developers, conduct code reviews, and champion best practices for event-driven architecture (EDA). Work closely with product managers, data scientists, and frontend engineers to build cohesive and powerful features. 5+ years of professional experience in backend software development. 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# or Phyton are a plus. 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). We value partnership and communication because we believe it takes a group of people to achieve great things.

📌 (Senior) PHP Backend Engineer (Madrid)
🏢 Aleph
📍 Madrid