Marianne H.

Public Speaker @ IT-conferences, CIO-Regisseur @ KVK, Board member @ NLJUG, Women in IT Community Lead @ WeCode KVK

Utrecht Area

About

Entered the CIO Office at the Dutch Chamber of Commerce July 2025 after eight years as a Java Developer including three years as Practice Lead and Community Lead. Co Lead for the Dutch Java community NLJUG. Passionate ambassador for Women in IT. Public speaker at IT-conferences. #JFall #JUGs #Devoxx Always expanding my skills and knowledge through training, conferences and community meetups.

Experience

  • Kamer van Koophandel (7 yrs 7 mos)
    • CIO-Regisseur
      Jul 2025 - Present · 1 yr

    • Practice Lead IT Development
      Mar 2022 - Jul 2025 · 3 yrs 5 mos

      Leading a Practice of around 20 Software Developers at KVK while working as a Senior Java Developer in one of our Product Teams. Co-founder of our Java Community, co-lead for our Women in IT Network, WeCode();. Responsibilies: HR, hiring, contracting, staff planning, personal development, community acvies.

    • Java Developer
      Dec 2018 - Jul 2025 · 6 yrs 8 mos

      Jumped into gear from junior to medior developer building (green field) Rest API's using Java 11 and onward, Spring Boot, DB2/Postgres, Docker/Kubernetes, Gitlab CI/CD. Green field development of roboc process automaon using Camunda and BPMN. Reverse Engineering and rebuilding legacy systems. Tech stack: Java, Spring Boot, Hibernate, SQL, Docker, Kubernetes, Gitlab CI/CD, Camunda BPMN/RPA.

  • NLJUG Board Member at NLJUG - Dutch Java User Group
    Jan 2025 - Present · 1 yr 6 mos

    • Promoting knowledge sharing and improving professional skills within the Java community. • Co-organizing conferences as NLJUG Board Member. • Collaborating with international speakers to bring together Java enthusiasts at events like J-Spring and J-Fall. • Promoting diversity and community engagement.

  • Board Member Primary School at Bestuur OBS De Regenboog
    Apr 2014 - Jan 2020 · 5 yrs 10 mos

    Voluntary School Board Member and President. Focussed on strategy and professionalizing staff and management. 200 children, 14 staff members

  • Trainee Java Developer @ Chamber of Commerce at Spring Professional
    Aug 2017 - Dec 2018 · 1 yr 5 mos

    Half year full time IT traineeship as java developer in a muldisciplinairy devops team. Java, Spring Boot, SQL, Docker, Kubernetes, Gitlab CI/CD, Angular

  • Student Make IT Work at Amsterdam University of Applied Sciences
    2017 - Dec 2017 · 1 yr

    Retraining as a Java Developer through Make IT Work. Eleven months full me training and internship. Leaping into a new career, discovering the joy of programming.