Senior Full Stack Engineer | Java / React We are looking for the very Top Talent and we would be delighted if you were to join our team! More in details, UST is a multinational company based in North America, certified as a Top Employer company with over 35.000 employees all over the world and presence in more than 30 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies. What are we looking for? What are we looking for? We are looking for a Senior Full Stack Engineer with more than 5 years of experience, strong expertise in Java, Spring Boot, and React, and the ability to take end-to-end ownership of features. You will join a 100 remote project, working with one of our clients, a leading company in the Spanish banking sector. We are looking for solid experience with AWS, CI/CD, REST APIs, and automated testing, as well as a B2 level of English or higher. Main requirements:

More than 5 years of software development experience, with the ability to work independently on Full Stack solutions and take end-to-end ownership of features.
Strong experience developing APIs and microservices with Java / Spring Boot, including the design, implementation, integration, and evolution of REST APIs.
Hands-on experience developing and modifying Frontend applications with React, including API integration and the evolution of existing applications.
Experience developing or modifying mobile applications would be a plus.
Experience with relational databases such as PostgreSQL and technologies such as JPA / Hibernate.
Experience working with AWS and cloud architectures.
Strong, demonstrable experience with CI/CD, pipeline automation, quality gates, testing, and deployment processes.
Experience with testing beyond unit testing, including integration testing, API testing, functional testing, and end-to-end testing. Experience with tools such as Playwright, Cypress, Selenium, Postman/Newman, or similar would be a plus.
Experience with Git, Maven, JUnit, and Mockito.
Knowledge of hexagonal, decoupled, and event-driven architectures.
Ability to work end-to-end on a feature, making changes when necessary across the different layers: React API microservices persistence integration testing deployment.
Experience applying Artificial Intelligence to the software development lifecycle will be highly valued, for example through AI-assisted coding tools, code generation and review, test generation, documentation, analysis/troubleshooting, or improving development productivity.
A good level of English is mandatory (minimum B2), with the ability to communicate confidently in an international professional environment, including conversations, technical documentation, and meetings. Native or equivalent level of Spanish is also required.

Main tech stack Java, Spring Boot, React, REST APIs, PostgreSQL, JPA/Hibernate, AWS, Git, Maven, CI/CD, automated testing. What can we offer?

23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
Numerous benefits (Health Care Plan, teleworking compensation, Life and Accident Insurances).
Retribución Flexible Program: (Meals, Kinder Garden, Transport, online English lessons, Health Care Plan )
Free access to several training platforms
Professional stability and career plans
UST also, compensates referrals from which you could benefit when you refer professionals.
The option to pick between 12 or 14 payments along the year.
Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime )
UST Club Platform discounts and gym Access discounts

If you would like to know more, don t hesitate to apply and we ll get in touch to fill you in detail. We are waiting for you! Java, Spring Boot, React, AWS, CI/CD, REST APIs,

Senior Full Stack Engineer | Java / React, 100% En remoto

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