Hire the Best Grails Developers
in Argentina

I am a System's Engineer living in Argentina and I have been working as a Senior Software Engineer for the past 9+ years. These are some projects I have worked on: jBilling: Canadian company that has a Complex Billing System ideally for Telco companies or any company that sell services based on subscriptions. Stack: Java J2EE, Grails, Hibernate, Spring, Hbase, Hadoop, ActiveMQ, RabbitMQ, Apache Velocity, Jasper Report, jQuery, HTML, CSS and PostgreSQL Taaxii: Argentinean Company that has a solution for Travel Logistics for Company Employees. Stack: Java J2EE, Hibernate, GWT, Ibatis, Android, iOS, MySQL, AWS EC2, AWS S3, AWS RDS and Other AWS Services. Evolticom: Sweedish Company that had a CRM Web Solution. Stack: Grails, Bootstrap and PostgreSQL. DXC: Former HPE area where I worked with them to implement jBilling for the City of Dubai. FusionSleep: US Company that had a solution to control Truck drivers sleep behaviors. Stack: Grails, HTML, CSS and PostgreSQL. Autoentrada: Argentinean Company with a web solution for selling theater tickets online. Stack: Java J2EE, Struts, Ibatis, Jasper Report, HTML, CSS, PostgreSQL. Workia: Argentienan Company specialized in Human Resources Management. Stack: Java J2EE, Spring Boot, Angular JS, Microservices, HTML, CSS. SouthWest Airlines: Main US Low Cost Airline Company. I was involved in migrating existing applications to Java Web based solutions. Stack: Java J2EE, Spring, Spring MVC, Hibernate, HTML, CSS, Grails. Main roles and responsabilities I was involved in these projects: Analysis, Technical Design, Development, Testing, Team Leader, Technical Leader, DevOps.

I build robust, production-ready backend systems and scalable web applications using Java and Spring Boot. Whether you need to architect new RESTful APIs, optimize database performance, or integrate third-party platforms into an existing codebase, I deliver clean, maintainable, and well-documented software. What I bring to your project: - Backend Architecture: Designing secure, modular REST APIs and microservices with Spring Boot. - Database Design & ORM: PostgreSQL schema design, indexing, and data access layers with Spring Data JPA / Hibernate. - Integration & Security: Authentication/authorization (OAuth2, JWT, Spring Security) and payment or external service integrations. - Performance & Reliability: Refactoring legacy code, fixing bottlenecks, unit/integration testing (JUnit, Mockito), and Docker containerization. - Full-Stack Execution: Connecting backend services to responsive web frontends using React and TypeScript. Core Tech Stack: - Languages: Java (17/21), TypeScript, Python - Frameworks & Libraries: Spring Boot, Spring Security, Spring Data JPA, Hibernate, React - Databases: PostgreSQL, MySQL, Redis - DevOps & Tools: Docker, Git/GitHub, Maven/Gradle, Postman, CI/CD pipelines I prioritize clean architecture, strict business logic adherence, and open communication to ensure your project launches on schedule. Have an API to build, a backend to scale, a migration, or a technical blocker to solve? Send me a message and let's discuss your requirements.

Name: Carlos Alonso Title: Backend Developer | PHP and Laravel Specialist Education: Information Systems Engineering (2014) Master in Teleinformatics Summary: Experienced and skilled backend developer with over a decade of experience in designing, developing and maintaining robust web applications using PHP and Laravel. Proficient in front-end technologies such as JavaScript and jQuery, with a strong ability to create seamless integrations with external systems through APIs and webhooks. Key skills: Backend Development: Proficient in PHP and the Laravel framework to develop scalable and efficient web applications. Front-end development: Experience with JavaScript and jQuery to create interactive and dynamic user interfaces. API Development: Experience in developing and consuming RESTful APIs for seamless communication between systems. Webhooks - Expert in setting up and managing webhooks for real-time data exchange. Integration: Strong ability to integrate applications with various third-party services and external systems. Professional experience: Developed and maintained multiple large-scale web applications using Laravel, ensuring high performance and scalability. Created and implemented RESTful APIs for various projects, enabling seamless data exchange between systems. Integrated third-party services. Collaborated with front-end developers to improve user experience and ensure seamless functionality across the stack. Provided mentoring and guidance to junior developers, fostering a collaborative and innovative team environment.

As a Software Engineer with over 5 years of experience, I specialize in designing, developing, and deploying scalable cloud-based software solutions. My expertise lies in Java, Go, and the Spring ecosystem (Spring Boot, Spring Security, OAuth2.0), and I have a proven track record of building innovative, user-friendly applications for clients worldwide. I am highly skilled in leveraging AWS cloud services to deliver robust, secure, and high-performance systems. Whether you need a new application from scratch, want to modernize your existing software, or require ongoing support, I bring a detail-oriented and client-focused approach to every project.