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Freelance Lead Data Migration Expert

  • Hybrid
    • Brussels, Brussels, Belgium
  • Freelance

Job description

We’re looking for an expert who has previously delivered on a Teradata to Snowflake migration.

Customer info:

You'll lead a migration for a company in the Telco industry, going from Teradata to Snowflake. In addition to this, ETL workloads built using Informatica need to be migrated to Snowflake as well. The engagement will start with leading a migration workshop and subsequently, you can help form the team that executes the full migration, which must be completed by end of 2026.

Job requirements

Preferred start date: January 2026

Duration: 12 months

Rate: TBD

Location: Brussels

Your role

As Lead Data Migration specialist you will:

  • Lead the initial migration workshop

  • Analyse the current Teradata and Informatica setup (schemas, workloads, ETL, performance)

  • Define the migration scope, approach, risks, and team needs

  • Act as lead architect during execution

  • Guide SQL/code conversion, data model migration, workload optimisation

  • Help select and lead the migration team

Required Experience

 Must haves:

  • Deep hands-on experience with Teradata

  • Strong expertise with Snowflake

  • Proven Teradata to Snowflake migration delivered end-to-end

  • Able to run workshops, assess environments, and define migration roadmaps

Required skills:

  • 5+ years in data engineering/architecture

  • Experience with Teradata & Snowflake

  • Experience with Informatica

  • Experience with a Teradata to Snowflake migration

  • Confident communicator with experience leading technical workshops

  • Experience with SQL conversion/migration tooling

  • Broader cloud experience (AWS)

  • Snowflake advanced features (Snowpark, Dynamic Tables, governance)

  • Prior leadership of large-scale data-platform migrations

  • Experience within the telco industry

Other requirements:

  • Fluent in English; knowledge of Dutch or French is a strong plus.

  • Willingness to work 2 or 3 days/ week onsite in Brussels

Why join adesso Belgium?

  • Work in an international group with strong local expertise in Belgium.

  • Collaborate with cross-functional teams to deliver trusted, compliant, reusable data products.

  • Flexible freelance setup with the support of a growing adesso Belgium community.

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