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# Software Engineer

- **Company:** Npaw
- **Location:** Barcelona, Spain
- **Salary:** €70,000.0 - €90,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Business Analytics Applications, Big Data, Mobile Application Development, Computer Programming, Data Visualization, Embedded Software, Package Management Systems, Distributed Caching, Responsive Web Design, Web Application Frameworks, Backend, Git, Front End Software Development, Jenkins
- **Published:** July 20, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

+ BS/MS degree in Mathematics, Engineering or a related field.
 + Experience as a software engineer using Java, JavaScript, or mobile technologies.
 + Proficiency in at least one area: backend (Java), frontend (JavaScript/modern frameworks), or plugin/mobile development (iOS/Android).
 + Skilled with local and distributed cache libraries for performance improvement.
 + Proven ability to ensure scalable, high-performance APIs and responsive user interfaces.
 + Experience in optimizing services.
 + Familiar with Git and automation tools like Jenkins.
 + Familiarity with modern frontend tooling (bundlers, package managers, testing frameworks) is a plus.
 + Passionate problem solver with a love for programming.
 + Open to learning new languages and technologies.
 + Committed to meeting tight deadlines.

## Description

Join our innovative engineering team, working across Java for backend services, JavaScript for frontend applications, and JavaScript and mobile technologies (iOS/Android) for plugin development. We tackle massive datasets daily with cutting-edge methods and seek curious minds who excel at solving complex engineering puzzles with a can-do attitude. We unlock meaningful insights from data, and your contributions will have a tangible impact on our mission from the very start.
Responsibilities

 + Develop and optimize backend services in Java and/or frontend applications in JavaScript to help clients understand user behavior.
 + Build and maintain plugins using JavaScript and mobile technologies (iOS/Android) to extend platform capabilities across devices.
 + Integrate AI-driven approaches to enhance projects and processes.
 + Optimize existing services and craft new functionalities for processing large data volumes.
 + Work with various departments to develop pioneering technologies.
 + Collaborate with the Product Team to create new metrics for our Analytics Software.
 + Partner with the UI team to design and implement data visualization experiences.
 + Work with Customer Engineering and Operations teams to plan and deliver custom projects.


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