Fullstack Developer

K-Lagan; Barcelona; Híbrido; EUR 45.000 - 65.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Permanent contract

Hybrid work model

Flexible working hours

Private health insurance

Gym discounts

Birthday day off

Descripción de la vacante

K-LAGAN in Barcelona is seeking a talented Fullstack Developer (Java + React) to join our Software Engineering team. You will build end-to-end applications, delivering interactive front-ends and robust back-end services in a hybrid work setting.

You will work with Java, Spring Boot, React, Docker and Kubernetes, collaborating with international teams, and contributing to cloud deployments on Azure. The role offers a permanent contract, growth opportunities, and a supportive, diverse tech

Formación

• 4+ years of software development experience with Java and React.
• Strong knowledge of Spring Boot, Docker, Kubernetes, and CI/CD.
• Experience with Azure Cloud services is preferred.
• Excellent communication in English (B2/C1).
• Familiarity with Agile methodologies and best practices (Clean Code, TDD).

Responsabilidades

• Develop modern UIs with React and Redux for scalable front-ends.
• Create robust Java back-end services with Spring Boot.
• Manage containers with Docker and Kubernetes in production.
• Automate deployments via CI/CD pipelines in Azure.
• Ensure performance, security, and reliability of applications.

Conocimientos

Java

React

Spring Boot

Docker

Kubernetes

CI/CD

Azure Cloud

Educación

Degree in Computer Science or equivalent

Herramientas

Docker

Kubernetes

Azure

CI/CD tooling

Descripción del empleo

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

We offer a comprehensive technology portfolio including:

• 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 Fullstack Developer (Java + React) to join our Software Engineering 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 Fullstack Developer, you will build end-to-end applications, leading the development of interactive React interfaces and robust Java backend services, ensuring efficient deployment in cloud environments.

What will you do day to day?

• Develop modern user interfaces and reusable components using React.js and Redux/Context API
• Build scalable APIs with Java and Spring Boot to support frontend functionalities
• Manage container lifecycles using Docker and Kubernetes orchestration in production environments
• Automate deployments through CI/CD pipelines, ensuring continuous delivery in Azure
• Optimize application performance and security to deliver a smooth and secure user experience

Requirements

• Degree in Computer Science, Software Development, or equivalent technical background
• 4+ years of experience in software development with strong expertise in Java and React
• Solid knowledge of Java (Spring Boot), React.js, Docker, Kubernetes, CI/CD, and Azure Cloud services
• Fluent English (B2/C1 level) for communication with international teams
• Familiarity with Agile methodologies and development best practices (Clean Code, TDD)

Nice to Have

• Experience with TypeScript on the frontend
• Azure certifications or knowledge of monitoring tools
• Ability to propose efficient architectural solutions connecting frontend and backend systems

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.

Location

Barcelona

Hybrid

4 year(s)