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# Java / Kotlin Backend Developer - Hays

- **Company:** Hays
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Automation of Tests, BigQuery, Cloud Computing, Software Quality, Continuous Integration, Github, Java Virtual Machine (JVM), Knowledge Management, Scrum Methodology, Cloud Services, Google Cloud, Backend, Kotlin, Kubernetes, Data Analytics, Terraform, Docker
- **Published:** October 8, 2026
- **Apply:** https://www.buscojobs.com.es/java-kotlin-backend-developer-hays-en-barcelona-ID-375252713

## About the Role

Compensaciones / Beneficios 4 remote working days per week 27 days of annual leave annual salary review career development plan permanent direct contract international and technology-driven environment Responsabilidades Design, develop, and maintain Kotlin-based backend services Build and manage scalable infrastructure using Terraform, Docker, and Kubernetes Operate in GitOps environments with Flux Create and maintain CI/CD pipelines via GitHub Actions Work with Google Cloud Platform services (BigQuery, GKE, Pub/Sub) Integrate APIs and ensure code quality with automated tests (Kotest, Testcontainers) Collaborate within agile processes (Scrum/Kanban) Contribute to continuous improvement of development processes, architecture, and engineering practices Requisitos principales 4+ years of Backend Software Engineer experience Strong JVM experience, ideally Kotlin and ecosystem Knowledge of Docker and Kubernetes Experience or interest in IaC, especially Terraform Familiarity with GitOps and
CI/CD tools (GitHub Actions) Experience with cloud services, preferably GCP API integration and management knowledge Ability to work in international, collaborative teams Strong problem-solving mindset and continuous improvement focus English proficiency for global collaboration collaboration problem-solving continuous improvement mindset Kotlin JVM Docker

## Description

Overview In this role you will design, build, and maintain scalable Kotlin backend services that power personalized customer experiences within a global loyalty platform.You will work closely with cross-functional teams to deliver cloud-native solutions and improve architectural practices.The position offers exposure to modernDevOps practices, IaC, and data-driven features at scale.You will contribute to a collaborative, international environment and participate in a long-term, career-focused opportunity with a leading tech employer.Compensaciones / Beneficios 4 remote working days per week 27 days of annual leave annual salary review career development plan permanent direct contract international and technology-driven environment Responsabilidades Design, develop, and maintain Kotlin-based backend services Build and manage scalable infrastructure using Terraform, Docker, and Kubernetes Operate in GitOps environments with Flux Create and maintain CI/CD pipelines via GitHub Actions Work with Google Cloud Platform services (BigQuery, GKE, Pub/Sub) Integrate APIs and ensure code quality with automated tests (Kotest, Testcontainers) Collaborate within agile processes (Scrum/Kanban) Contribute to continuous improvement of development processes, architecture, and engineering practices Requisitos principales 4+ years of Backend Software Engineer experience Strong JVM experience, ideally Kotlin and ecosystem Knowledge of Docker and Kubernetes Experience or interest in IaC, especially Terraform Familiarity with GitOps and CI/CD tools (GitHub Actions) Experience with cloud services, preferably GCP API integration and management knowledge Ability to work in international, collaborative teams Strong problem-solving mindset and continuous improvement focus English proficiency for global collaboration collaboration problem-solving continuous improvement mindset Kotlin JVM Docker