Freelancer profile translated to English.
Back to original languageAbout Nico
Senior Backend Engineer with extensive experience in the design, development, and maintenance of distributed systems in international enterprise environments. Specialized in Java, Spring Boot, AWS, and microservices-based architectures, with a strong focus on software quality, maintainability, and scalable backend solutions.
Throughout my career, I have worked on cloud migration projects, backend architecture, and high-availability systems for sectors such as traffic management, fintech, travel, and digital platforms. I am particularly focused on building reliable and maintainable software through testing strategies, clean architecture, and pragmatic engineering practices. I firmly believe that high-quality software and collaborative teams are key to the sustainable success of any project.
Beyond development, I enjoy helping teams improve their engineering practices, sharing knowledge, and contributing to a positive, collaborative, and problem-solving technical culture.
Currently interested in AI-assisted software development and how modern artificial intelligence tools can improve engineering productivity while maintaining high-quality standards.
Spanish
Native or bilingual
English
Fluent
Catalan
Native or bilingual
Remote only
Primarily works remotely
Experience
- INDRAFreelance Senior Backend EngineerTRANSPORTATIONOctober 2022 - Today (3 years and 8 months)Madrid, SpainParticipation in the cloud migration of critical SCADA systems for the Dirección General de Tráfico (DGT) on AWS infrastructure. Design, development, and maintenance of backend microservices with Java and Spring Boot in distributed and high-availability environments. Involvement in technical design and backend architecture tasks focused on system scalability, maintainability, and reliability.Strong focus on software quality, automated testing, and good engineering practices within agile and international teams. Active collaboration with other teams and developers, assisting in complex problem-solving, code reviews, and continuous improvement of technical practices.Integration of AI-assisted development tools to enhance productivity and software quality.Technologies: Java, Spring Boot, AWS, Microservices, OpenAPI, Jenkins, CI/CD, TDD, GitHub Copilot.
- AvaloqFreelance Senior Backend EngineerBANKING AND INSURANCEMay 2022 - June 2023 (1 year and 1 month)SwitzerlandBackend development of microservices with Java and Spring Boot for investment platforms and digital assets. Participation in the development and maintenance of fintech solutions related to blockchain and cryptocurrency investment platforms for international financial entities.Collaboration in agile environments with a strong focus on software quality, automated testing, and good engineering practices.Participation in API integration, technical design, and maintenance of scalable and maintainable backend systems.Technologies: Java, Spring Boot, GraphQL, OpenShift, OpenAPI, Jenkins, Gradle, Flowable, TDD.
- Merkle EMEASenior Fullstack Software EngineerTELECOMMUNICATIONSSeptember 2020 - May 2022 (1 year and 8 months)Backend and frontend development of sales-oriented applications and digital platforms for Sky UK.Participation in the development of microservices and scalable solutions using Java, Spring Boot, and React in agile environments.Strong focus on automated testing, TDD, and software quality as part of the development cycle.Close collaboration with multidisciplinary teams in an international environment focused on continuous improvement and delivery of quality software.Technologies: Java, Spring Boot, React, Kafka, Jenkins, Maven, TDD, Microservices.
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Education
- Private courses on investment in financial products (trading)Private2017Cursos privados de inversión en productos financieros (trading)
- Enrolled in Computer Engineering DegreeNational University of Distance Education - U.N.E.D.2011Matriculado en Grado Ingeniería Informática