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Open nowPosted 18 hours ago

Data Functional Analyst

EURES job mobility portal370,340 open roles

Where
de Bruxelles-Capitale/Arr. Brussel-Hoofdstad, Belgium
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Your applicationOpen nowData Functional AnalystEURES job mobility portal · de Bruxelles-Capitale/Arr. Brussel-Hoofdstad, Belgium

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The clock on this job

Early applications get read.

8.0% of postings close within 7 days. Measured by our own scanner across the market. EURES job mobility portal postings stay open a median of 3 days.

Share of postings closed within
  1. 1.6%1 day
  2. 3.6%3 days
  3. 8.0%7 days
  4. 15.0%14 days
  5. 34.2%30 days
This job: posted 18 hours ago

EURES job mobility portal median: 3 days open

The posting

About the Role

Oliver James is partnering with a leading enterprise organization migrating its core legacy systems from Adabas (Mainframe) to PostgreSQL.

We are seeking a Data Functional Analyst to bridge the gap between legacy business logic and modern database architecture. Working directly alongside Data Engineers and DBAs, you will define data mappings and ensure a seamless, high-integrity migration.

Key Responsibilities

  • Legacy Data Analysis & Mapping: Deep-dive into Mainframe data structures and define accurate functional target mappings to PostgreSQL relational schemaq.
  • Technical & Functional Guidance: Act as the primary functional advisor for Data Engineers and DBAs, writing clear functional specifications to guide ETL/ELT pipeline development and schema design.
  • Data Quality & Reconciliation: Design data validation strategies, define test scenarios, and execute cross-database reconciliation checks (Mainframe legacy vs. PostgreSQL) to guarantee 100% data integrity and consistency.
  • Data Lineage & Documentation: Maintain comprehensive data dictionaries, mapping rulebooks, and lineage documentation throughout the migration lifecycle.
  • Cross-Functional Collaboration: Serve as the functional point of contact for resolving legacy data ambiguities and translating complex business rules for the technical delivery team.

Requirements & Qualifications

  • Functional Data Expertise: 3 years of experience as a Data Functional Analyst, Business Data Analyst, or Data Consultant on large-scale data transformation projects.
  • Database & SQL Skills: Strong, mandatory expertise in PostgreSQL and advanced proficiency in SQL and relational data modelling concepts.
  • Mainframe Experience: Solid functional understanding of Mainframe database environments (knowledge of Adabas is nice to have, but not mandatory).
  • Migration Track Record: Hands-on experience working on complex legacy-to-relational data migration projects.
  • Language Skills:Fluent English (written and spoken). Professional fluency in French and/or Dutch (essential for local team and business stakeholder collaboration).
  • Communication & Mindset: Excellent analytical skills, rigorous attention to detail, and the ability to articulate complex functional rules clearly to technical teams.
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