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# Senior Backend Engineer (Boosters)

- **Company:** Playson
- **Location:** Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), C++ (Programming Language), Software as a Service, Databases, Distributed Systems, Amazon DynamoDB, PostgreSQL, MongoDB, MySQL, Node.Js, NoSQL, RabbitMQ, E2e Testing, TypeScript, Software Security, Backend, Kubernetes, Information Technology, Apache Kafka, Vertica, Asynchronous Programming, Golang, Microservices
- **Published:** October 13, 2026
- **Apply:** https://www.jobleads.com/es/job/senior-backend-engineer-boosters--spain--e979d018c5807e942ec4b948a3c99439a

## About the Role

* Strong proficiency in Node.js and TypeScript (our primary backend stack). We're also open to strong backend engineers from other ecosystems (e.g., Go, Java, C#, C++) who are ready to ramp up quickly.
 * Strong understanding of asynchronous programming and concurrency patterns.
 * Experience building distributed systems and working with messaging and coordination tools (e.g., Kafka, RabbitMQ, NATS, distributed locks).
 * Experience with gRPC in production environments.
 * Solid knowledge of databases: relational (MySQL, PostgreSQL), columnar (ClickHouse), and NoSQL (DynamoDB, MongoDB).
 * Experience with cloud platforms (AWS/GCP/Azure) and Kubernetes.
 * Skilled in building and maintaining unit and end-to-end tests.
 * Proven track record of delivering production-ready solutions.
 * Experience working with large-scale microservices architectures.
 * Degree in Computer Science or a related field (or equivalent practical experience).

Nice to Have

 * Understanding of enterprise development patterns
 * Experienced with large-scale microservices architecture
 * Experience with cloud providers (AWS, GCP, etc.)
 * Active performance observation
 * Gambling domain experience
 * Understanding of application security and industry standards, its best practice

## Description

About the Role

Our promotional features team is seeking a Senior Backend Engineer. This role is focused on developing and optimising promotional features for our gaming platforms, where performance, scalability, and cutting-edge solutions are paramount. If you're a product-passionate person, your mind is keen to solve deep tech engineering problems, and you have a fast "PoC first" approach with a deep sense of ownership, we would love to hear from you.

Key Responsibilities

 * Develop and maintain robust backend systems for our promotional features.
 * Optimize existing systems for enhanced performance and scalability.
 * Lead technical decisions and contribute to our SaaS solutions.
 * Collaborate with distributed teams to innovate and implement new features.
 * Ensure code and architectural excellence through reviews.
 * Address complex technical challenges with innovative solutions.
 * Participating in on-call rotations within the squad to help ensure the reliability and availability of our systems.

Requirments

 * Strong proficiency in Node.js and TypeScript (our primary backend stack). We're also open to strong backend engineers from other ecosystems (e.g., Go, Java, C#, C++) who are ready to ramp up quickly.
 * Strong understanding of asynchronous programming and concurrency patterns.
 * Experience building distributed systems and working with messaging and coordination tools (e.g., Kafka, RabbitMQ, NATS, distributed locks).
 * Experience with gRPC in production environments.
 * Solid knowledge of databases: relational (MySQL, PostgreSQL), columnar (ClickHouse), and NoSQL (DynamoDB, MongoDB).
 * Experience with cloud platforms (AWS/GCP/Azure) and Kubernetes.
 * Skilled in building and maintaining unit and end-to-end tests.
 * Proven track record of delivering production-ready solutions.
 * Experience working with large-scale microservices architectures.
 * Degree in Computer Science or a related field (or equivalent practical experience).

Nice to Have

 * Understanding of enterprise development patterns
 * Experienced with large-scale microservices architecture
 * Experience with cloud providers (AWS, GCP, etc.)
 * Active performance observation
 * Gambling domain experience
 * Understanding of application security and industry standards, its best practice

What We Offer

 * Competitive Salary
 * Quarterly Bonuses
 * Unlimited Paid Time Off
 * Unlimited Paid Sick Leave
 * Remote & Flexible Working
 * Private Medical Insurance
 * Financial Support for Life Events
 * Professional Development Budget
 * International Exposure
 * Regular Company Events

*Benefits may vary depending on location and contractual agreement

Recruitment Process

 * HR interview
 * Technical interview (with Live coding)
 * Final interview