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Mark ElmslyME

Mark Elmsly

Data specialist in migration and datawarehousing

€350/day
Barcelona, ES
15+ years

Average response time: 1 hour

About Mark

Versatile data professional with a strong track record in combining technical expertise with business analysis to deliver data solutions across cloud and on-prem environments. Adept at translating complex business needs into actionable data models, transformations, and analytics using SQL, Python, DBT and BI tools.

I am skilled in collaborating with cross-functional teams, mentoring colleagues, and adapting to evolving priorities I can be your Data Modeller designing your data schemas, working on your Data Migration, your Developer or your Tester as priorities change.

I am senior team player who enjoys building relationships with non-technical business people and supporting fellow team members.

I am based in Barcelona but will accept hybrid/remote roles elsewhere in Europe.
I am negotiable on rates for new clients
  • English

    Native or bilingual

  • Spanish

    Basic

Can work on-site
Barcelona (up to 50km), Madrid (up to 50km), Girona (up to 50km), Tarragona (up to 50km)

Experience

  • Quality Hub Limited
    Business Analysis Documentation
    DIGITAL AND IT
    September 2025 - March 2026 (6 months)
    Barcelona, Spain
    Remote role to document system and revise user documentation
    - Evaluated the databases for quality and improvements with a focus on reporting capabilities
    - Assisted in testing of a version upgrade
    database analysis documentation
  • Accident Compensation Corporation
    Datawarehouse Developer
    April 2024 - July 2024 (3 months)
    Support developer during migration from SAS and Oracle to a single Snowflake datawarehouse.
    - Supported batch processing
    - Analysed upstream changes to ensure only minimal changes were required for datawarehouse continuance
    - Developed and implemented required changes
  • Smarter Systems Limited
    Datawarehouse consultant
    DIGITAL AND IT
    March 2013 - Today (13 years and 2 months)
    Wellington, New Zealand
    Company Director and primary consultant for IT Company selling services to support datawarehouse systems for Banks and Government Departments.
    I have retired my consultancy role to immigrate to Spain.
    Business development Business intelligence

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Education

  • Bachelor of Science
    University of Waikato
    BSc. (Computer Science)

Skill set

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