Jorge Arenas Durán
@jorgearenasdurn
I build scalable Java backends and facilitate high-performing Scrum teams.
SpainWhat I'm looking for
At NTT DATA, I support Santander Group projects as an Agile Senior Specialist and Team Facilitator, helping teams adopt Scrum practices and coordinate dailies, planning sessions, retrospectives, and reviews.
Previously, I maintained and evolved an internal web platform used by several Santander entities as a Senior Back End Developer. I improved reliability and scalability through efficient caching, messaging systems, and batch-process automation.
I've built Java backend solutions at Tadaima Studio, Accenture, and Deloitte, including fraud and billing systems, REST services, database migrations, and modernization of legacy architectures. My work includes Spring Framework, microservices, SOLID principles, design patterns, and automated testing.
I also developed a fintech application for Android and iOS with Flutter, and worked with Magento 2 on e-commerce integrations, performance, and custom modules. I enjoy learning, collaborating, and delivering efficient, scalable products in agile environments.
Experience
Work history, roles, and key accomplishments
Serves as the project reference for Scrum, acting as Team Facilitator to ensure agile practices are adopted and applied correctly. Coordinates Scrum ceremonies and works with Product Owners and Developers to remove impediments and foster continuous improvement.
Worked as a Java Developer maintaining and evolving an internal web platform for Santander group entities. Optimized performance through efficient caching, messaging systems, and batch process automation to ensure reliability and scalability.
Hibrid Apps Developer
Orbyn
Jun 2022 - Oct 2023 (1 year 4 months)
Developed a fintech app from scratch using Flutter for Android and iOS under Scrum methodology. Designed and programmed a hybrid application with key financial features, collaborating with the App Director and multidisciplinary team to iterate rapidly and deliver a functional, scalable product.
Backend Developer II
Tadaima Studio
Sep 2021 - Jun 2022 (9 months)
Worked as a Java Developer in fraud and billing for a global online store, involved in reverse engineering and modernizing legacy architecture. Developed backend in Java with SOLID principles, design patterns, and microservices, integrating relational and non-relational databases and implementing testing strategies.
Developed enterprise solutions focused on efficiency and scalability for internal and client systems. Focused on backend development with Spring Framework, REST services, and API integration.
Participated in development and maintenance of enterprise applications, combining Java backend tasks with database migration and optimization. Designed and executed complex SQL queries, stored procedures, and data transformation scripts.
Participated in enterprise software development projects during FCT internship, gaining experience in Spring Framework, Hexagonal Architecture, and JasperReports. Learned to design Java applications with clean, modular architectures and generate dynamic reports.
Técnico Informático Desarrollo de Aplicaciones Multiplataforma
Sportbests.com
Jul 2017 - Jun 2018 (11 months)
Worked as a PHP programmer specialized in Magento 2 for an online sports clothing and products store. Developed and maintained custom modules, integrated external systems, and optimized platform performance while collaborating with marketing and design teams.
Education
Degrees, certifications, and relevant coursework
I.E.S LAS FUENTEZELAS
Formación Profesional, Computer Science
2018 - 2019
Completed vocational training in computer science.
I.E.S JÁNDULA
Formación Profesional Grado Superior, Computer Science
2015 - 2017
Completed higher vocational training in multiplatform application development.
Availability
Location
SpainAuthorized to work in
Job categories
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