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# Senior Java Developer Id80054

- **Company:** Agileengine
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Automation of Tests, Unit Testing, Program Optimization, Software Quality, Data Architecture, Software Design Patterns, Memory Management, Junit, PostgreSQL, MongoDB, NoSQL, Performance Tuning, Software Architecture, Mockito, Software Engineering, Spring-boot, Backend, Front End Software Development, Restful APIs, Microservices
- **Published:** September 9, 2026
- **Apply:** https://www.buscojobs.com.es/senior-java-developer-id-80054-en-barcelona-ID-369235825

## About the Role

4+ years of professional backend software development experience
Java 11+ and deep familiarity with the Spring/Spring Boot ecosystem
backend architecture, Microservices, and RESTful APIs
Superior analytical and problem?solving ability;
automated unit testing and test?driven development using JUnit and Mockito
performance issues, computational complexity, memory management, and code optimization
industry?standard algorithms, design patterns, and PostgreSQL, MongoDB, or other relational/NoSQL databases
Effective communication skills to work with different teams across an international company;
Upper?intermediate English level.

## Description

AgileEngine is an Inc. **** company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries.We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.Why join usIf you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!About the roleWe are looking for a Senior Java Developer to design, build, and maintain highly scalable and secure backend services and APIs for an international engineering team.You will work across Java 11+ and Spring Boot in a microservices architecture, optimize PostgreSQL and MongoDB database schemas, implement automated testing with JUnit and Mockito, and collaborate closely with frontend, product, and QA teams to deliver production?ready features.The role requires expert-level Java knowledge with strong performance optimization and code quality standards.What you will doDesign, build, and maintain highly scalable, secure, and reliable backend services and APIs;Translate application storyboards and use cases into functional, production?ready applications;Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues;Collaborate closely with frontend developers, product managers, and QA to deliver end?to?end features;Participate in peer code reviews to ensure code quality and adherence to best practices;Maintain and optimize database schemas, queries, and overall data architecture.Must haves4+ years of professional backend software development experienceJava 11+ and deep familiarity with the Spring/Spring Boot ecosystembackend architecture, Microservices, and RESTful APIsSuperior analytical and problem?solving ability;automated unit testing and test?driven development using JUnit and Mockitoperformance issues, computational complexity, memory management, and code optimizationindustry?standard algorithms, design patterns, and PostgreSQL, MongoDB, or other relational/NoSQL databasesEffective communication skills to work with different teams across an international company;Upper?intermediate English level.Perks and benefitsProfessional growth: Mentorship, TechTalks, and personalized growth roadmaps.Competitive compensation: USD?based pay with education, fitness, and team activity budgets.Exciting projects: Modern solutions with Fortune 500 and top product companies.Flextime: Flexible schedule with remote and office options.Meet our recruitment processApplication - Coding Challenge - Video Interview - Technical Interview or Hiring Manager Interview.Each step helps us understand your skills and overall fit.If it's a match, you'll receive an offer.#J-*****-Ljbffr


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