Senior Java Developer

K-Lagan; Barcelona; Híbrido; EUR 48.000 - 65.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Private health insurance

Hybrid work model

Flexible hours

Birthday day off

Gym discounts

Childcare support

Language learning

Transportation support

Annual volunteering day

Team events and company dinners

Descripción de la vacante

K-LAGAN in Spain is seeking a Java Developer to join our Cloud & Software Development team and become part of an international, dynamic environment. You will design and develop scalable cloud-based microservices for our global clients, ensuring robust solutions and high quality.

Role offers a permanent contract, hybrid work, flexible hours, continuous learning, and strong collaboration within Agile teams. English proficiency and a passion for cutting-edge tech are essential.

Formación

• Degree in Computer Engineering, Telecommunications, or a related field.
• At least 4 years of professional backend development with Java.
• Strong knowledge of Java (Spring Boot), Docker, Kubernetes, CI/CD and Azure Cloud services.
• English level B2 or higher, with fluency for international environments.
• Experience with microservices architectures and SQL/NoSQL databases.

Responsabilidades

• Advanced backend development using Java 11/17 and Spring Boot.
• Design and management of containers with Docker and orchestration in Kubernetes clusters (AKS).
• Configuration and maintenance of CI/CD pipelines to automate the software lifecycle.
• Deployment of solutions in Azure, leveraging native services to optimize architecture.
• Collaboration within Agile environments (Scrum) and participation in code reviews following Clean Code standards.

Conocimientos

Java

Spring Boot

Microservices

SQL

NoSQL

English (B2)

Educación

Degree in Computer Engineering, Telecommunications, or a related field

Herramientas

Docker

Kubernetes

Azure DevOps/Jenkins

Azure Cloud services

Terraform

Descripción del empleo

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At K-LAGAN, we’re looking for talented people to keep growing with us!

We are an international technology services company specialized in:

• IT: Banking, Insurance, Retail & E-Commerce, Healthcare
• Transport & Supply Chain: Rail, Automotive, Logistics, and Aerospace
• Manufacturing: Renewable Energy, Oil & Gas, and Utilities
• R&D: Research, innovation, and development of technology solutions

At K-LAGAN, we focus on innovation, real impact, and tailor-made solutions, supporting our clients in transforming their businesses and processes.

Our purpose is clear: to humanize technology and lead sustainability while acting responsibly toward our people, our clients, and society. We create impact through innovation and talent, contributing to projects that help organizations grow, evolve, and transform.

Our Solutions At K-LAGAN, we offer a comprehensive technology portfolio:

• Technical Assistance
• Turnkey Projects
• Managed Services (SLA)
• Custom Technology Products
• Specialized Consulting
• Nearshore / Offshore Projects

We also work in key areas such as Cybersecurity, Data, QA, Agile, AI & Business Transformation, and Green IT.

The Opportunity

We are looking for a Java Developer to join our Cloud & Software Development team and become part of an international, dynamic, and constantly evolving environment.

If you are motivated by impactful projects, professional growth, and bringing value through your expertise, this is the place for you.

Your Mission

As a Java Developer, your mission will be to design and develop scalable cloud-based microservices, ensuring efficient deployments and high technical quality for cloud solutions delivered to our international clients.

What will you do day to day?

• Advanced backend development using Java 11/17 and Spring Boot
• Design and management of containers with Docker and orchestration in Kubernetes clusters (AKS)
• Configuration and maintenance of CI/CD pipelines to automate the software lifecycle
• Deployment of solutions in Azure, leveraging native services to optimize architecture
• Collaboration within Agile environments (Scrum) and participation in code reviews following Clean Code standards

Requirements

• Degree in Computer Engineering, Telecommunications, or a related field
• At least 4 years of professional experience in backend development with Java
• Strong knowledge of Java (Spring Boot), Docker, Kubernetes, CI/CD (Azure DevOps/Jenkins), and Azure Cloud services
• English level B2 or higher, with fluency for international environments
• Experience with microservices architectures and SQL/NoSQL databases

Nice to Have

• Knowledge of Infrastructure as Code (IaC) tools such as Terraform
• Official Microsoft Azure certifications (Developer or DevOps Engineer)
• Strong analytical skills, proactivity, and teamwork mindset

What We Offer

• Stable, innovative, and international projects aligned with your experience
• Permanent contract
• Hybrid work model depending on the project
• Flexible working hours
• 3 C’s Recognition Program (Commitment, Communication & Customer Orientation) with financial rewards
• Career development plan and continuous learning opportunities
• Birthday day off
• Private health insurance and flexible compensation plan
• Gym discounts
• Childcare, language learning, and transportation support
• Annual volunteering day
• Events and team buildings: afterworks, tech cafés, dinners, barbecues…
• Summer and Christmas company dinners
• +1 additional vacation day after every 4 years with the company

Our Commitment

At K-LAGAN, we believe in responsible technology (Green IT) and promote social impact initiatives such as our annual volunteering day, creating an environment where people can grow and thrive. Equal opportunity is one of our core values.