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Harold ConanHC

Harold Conan

Spring Boot Integration & Business MVP Specialist

€450/day
Nantes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Harold

I am a backend developer with extensive experience in CRM and ERP environments. For 5 years, I worked on a Spring-based ERP, which allowed me to understand data structuring, business logic, and system integration challenges. For the past 2 years, I have been developing an ETL-type application from scratch: architecture design, flow management, data transformation, performance, and reliability.

I am particularly involved in:
  • Development and evolution of applications in Spring Boot
  • Technical design and application architecture
  • Integration between systems (ERP, CRM, internal tools)
  • Implementation and optimization of data flows
  • Data migration
I prefer assignments of 2 to 4 days per month with a strong business impact.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Artis
    Java SpringBoot Data Integrator and Migration Consultant
    SOFTWARE PUBLISHING
    September 2020 - Today (5 years and 9 months)
    Saint-Sébastien-sur-Loire, France
    • Technical referent for a team of 5 people.

    • Design of data migration procedures.
    • Strengthening knowledge in architecture, modeling, and database optimization. Creation of standardized procedures. Design and development of a new ETL with an interface. → Technologies: MYSQL, Python, MariaDB, SQLServer, Oracle.

    • Performing data migration services.
    • Translating client functional requirements.
    • Rapid assimilation of client technical environments.
    • Client project management: planning, simplification, consulting, support...

    • Design and development of mass processing tools in the Artis.net ERP.
    • Collaborative work.
    • Maintenance of data integration tools. → Technologies: Thymeleaf, SpringBoot, BootStrap, Maven, Gradle.
    Spring boot SQL Data Migration Versioning ETL
  • Prios
    Apprentice, Java SpringBoot Designer & Developer
    SOFTWARE PUBLISHING
    September 2019 - September 2020 (1 year)
    Carquefou, France
    • Redesign of the PRIOS ERP backend.
    • Translation of Adelia code (similar to Windev) into Java SpringBoot.
    • Design and development of software to automate code translation.
    Spring boot Java Versioning Integration ERP Software
  • InterPixel,
    Sole Proprietor, WEB Developer
    April 2017 - December 2019 (2 years and 8 months)
    14000 Caen, France
    • Prospect outreach.
    • Translation of client functional requirements.
    • Design and development of WEB sites. (Showcase sites only)
    • Training and simplification of IT for novices.
    Spring boot Web Project Management IT Infrastructure Functional Specifications

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Education

  • University Institute of Technology
    2020
  • Higher National Diploma
    2019

Certifications

  • CISCO CCNA1
    CISCO
    2019
    Network Administration Cybersecurity

Skill set

Categories