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David Bolet

arquitecto java - golang - blockchain - solidity

Works remotely from Barcelona

  • 41.38506389999999
  • 2.1734034999999494
  • Suggested rate €420 / day
  • Experience 7+ years
  • Response rate 71%
  • Response time A few days
Propose a project The project will begin once you accept David's quote.

This freelancer is available full-time but hasn't confirmed their availability in over 7 days.

Propose a project The project will begin once you accept David's quote.

Location and workplace preferences

Barcelona, España
Remote only
Primarily works remotely


Project length
≥ 6 months


Freelancer code of conduct signed
Read the Malt code of conduct

Verified email



  • Spanish

    Native or bilingual

  • English


  • Russian


  • French


  • Romanian



Skills (45)

David in a few words

Desarrollador Back end especialista en Java y Golang, aunque con conocimientos full-stack y desarrollo movil. Con mas de 10 años, he trabajando en múltiples proyectos con las tecnologías más populares (Spring, J2EE, Hibernate, JPA, JMS, Rest...) en proyectos en multiples sectores (experiencia con clientes como Deutche telekom, Seat, Readisson Hotels,Hospital Sant Joan de Deu, El Periódico, etc...) . Bases de datos relacionales (Oracle, Postgres, Mysql, Sql-Server) y no-relacionales (Cassandra, MongoDB, redis, Elasticsearch). También he trabajado con herramientas específicas, como el gestor documental Alfresco, plataformas Sap SCP (NEO y Cloudfoundry), o el CMS LifeRay (6.0 y 6.1). Mi experiencia principal en desarrollo de aplicaciones backend. También tengo formación en Big-Data, y en Blockchain (desarrollado contratos inteligentes en Solidity -plataforma Ethereum-, incluyendo el token CatCoin, y he colaborado en la creación de un contrato para la generación de loterías y otro para la compra-venta automatizada de tokens). Con blockchain también he desarrollado la librería java JPascalCoin para la moneda PascalCoin, así como la APP para la gestión de dicha criptomoneda.



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