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# Site Reliability Engineer

- **Company:** Selección De País
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Artificial Intelligence, Computer Programming, Continuous Integration, Fault Tolerance, Java Virtual Machine (JVM), Spring Framework, Python (Programming Language), Open Source Technology, Performance Tuning, Reliability Engineering, Ruby, Software Engineering, Application Enhancement Tool, System Availability, Gitlab, Kotlin, Teamcity, Software Version Control, Service Stack, Golang, Programming Languages
- **Published:** September 24, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

Proven experience combining Site Reliability Engineering and Software Engineering responsibilities in production environments.
Strong programming skills and hands-on development experience with languages such as Java, Kotlin, Go, Python, Ruby, or similar.
Solid understanding of Unix/Linux operating systems, system internals, and infrastructure troubleshooting.
Strong knowledge of JVM-based applications, performance optimization, and operational best practices.
Experience designing, operating, and improving highly available and scalable systems.
Passion for enhancing user experience through engineering excellence and continuous improvement.
Ability to adapt quickly, solve complex technical problems, and perform effectively in fast-changing environments.
Strong analytical thinking, troubleshooting capabilities, and attention to detail.
Excellent communication and collaboration skills within cross-functional engineering teams.
Experience in Platform Engineering, developer platforms, or internal tooling environments is highly valued.
Familiarity with version control systems, CI/CD platforms, and build infrastructure such as GitLab, TeamCity, or equivalent solutions is advantageous.
Experience with Spring Framework, Java-based monolithic applications, or large-scale enterprise systems is considered a plus.
Comfortable participating in technical assessments and coding interviews as part of the hiring process.

## Description

This is an exciting opportunity to join a highly technical engineering environment focused on building and operating large-scale developer infrastructure. In this role, you will help maintain, optimize, and evolve critical development platforms that support thousands of daily builds, large-scale source code repositories, and extensive artifact storage systems. Working at the intersection of software engineering and site reliability, you will contribute to resilient, self-healing architectures while improving developer productivity and user experience. You will collaborate with talented engineers, solve complex infrastructure challenges, and leverage modern technologies, including AI-powered tools and automation. The position offers significant ownership, technical depth, and the chance to influence the future of engineering productivity at scale.
Accountabilities
Design, operate, and continuously improve large-scale developer infrastructure and internal tooling platforms.
Build and maintain reliable, fault-tolerant, and self-healing systems that ensure high availability and performance.
Analyze user feedback, identify pain points, and implement solutions that enhance developer experience and productivity.
Optimize system performance, reduce operational friction, and improve the efficiency of development workflows.
Develop, customize, and extend both open-source and commercial tools to better meet organizational needs.
Contribute to software development initiatives across multiple programming languages and technology stacks.
Monitor platform health, troubleshoot incidents, and implement preventive measures to improve reliability.
Collaborate with engineering teams to define meaningful operational metrics and validate improvements through measurable outcomes.
Support users by resolving technical issues, providing guidance, and ensuring platform stability.
Explore and integrate emerging technologies, including AI-assisted workflows and developer productivity solutions.