Data Migration & Integration Developer - 10962369

Data Migration & Integration Developer

Location: Brussels, Belgium
Employment Type: Contract
Duration: 6 Months
Start Date: ASAP
Experience: 8–10 years
Work Model: Hybrid – 1 day per week in the office

Role Overview

We are looking for an experienced Data Migration & Integration Developer to support large-scale transformation programs, with a strong focus on data migration, system integration, data mapping, and validation.

Key Responsibilities

Data Migration

• Define and execute end-to-end data migration strategies.
• Lead data assessment, profiling, cleansing, mapping, transformation, validation, and reconciliation activities.
• Develop migration plans, runbooks, and cutover strategies.
• Support the migration of customer, account, transaction, product, and reference data.
• Manage mock migrations, dress rehearsals, and production migration activities.

IT Integration

• Coordinate integration activities across multiple applications and platforms.
• Define system interfaces and integration requirements.
• Ensure effective integration between source systems, target applications, middleware, APIs, and external partners.
• Work with Enterprise Architects and Technical Leads to establish integration patterns and dependencies.
• Manage end-to-end integration testing and defect resolution.

Data Analysis & Mapping

• Perform source-to-target data mapping.
• Analyse legacy data structures and identify migration impacts.
• Define transformation and business validation rules.
• Develop reconciliation and data quality reports.
• Ensure data integrity and consistency throughout the migration lifecycle.

Stakeholder Management

• Collaborate with Business Analysts, Product Owners, Architects, Developers, QA teams, and business users.
• Conduct workshops for migration requirements and data mapping.
• Provide status reporting, risk assessments, and governance updates.
• Coordinate with external vendors and third-party application providers.

Required Skills & Experience

• 8–10 years of relevant experience.
• Strong experience with large-scale enterprise data migration projects.
• Hands-on expertise in:
  • Data Profiling
  • Data Cleansing
  • Data Mapping
  • Data Transformation
  • Data Reconciliation
  • Data Validation
  • Cutover Planning
• Experience migrating data between legacy and modern platforms.
• Strong integration experience, including:
  • API Integration
  • Microservices Architecture
  • Middleware Platforms
  • ETL Processes
  • Data Synchronization
  • System Interface Design
• Strong SQL and database querying skills.
• Experience with databases such as Oracle, SQL Server, PostgreSQL, or DB2 .
• Experience with ETL tools such as Informatica, Talend, IBM DataStage, SSIS, or Ab Initio .
• Experience with REST, SOAP, JSON, and XML .
• Familiarity with Azure DevOps, Jira, and Confluence .
• Strong analytical, communication, and stakeholder-management skills.