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September 4, 2026

Senior Data Migration Specialist

Senior • On-site

Warsaw, MZ, Poland

About the Project

We are looking for an experienced Senior Data Migration Specialist to provide expertise on a large-scale transformation programme within the financial services sector. This opportunity is suited to a senior migration specialist who combines strong technical knowledge with experience coordinating complex migration activities across business and technology teams.

The engagement focuses on migrating data from a legacy SaaS platform to a new strategic solution. The programme is currently shaping its migration approach and entering a critical phase of planning, reconciliation design, and cutover preparation.

Scope of Services

As a Senior Data Migration Specialist, you will:

  • Coordinate the development and delivery of the end-to-end data migration strategy.
  • Define migration approaches, data quality standards, validation criteria, and reconciliation processes.
  • Coordinate the design and implementation of qualitative and financial reconciliation tooling.
  • Collaborate with business stakeholders, solution architects, engineering teams, testing teams, and third-party vendors to ensure successful migration outcomes.
  • Facilitate migration planning activities, including migration waves, cutover planning, rollback scenarios, and readiness assessments.
  • Identify migration risks, dependencies, assumptions, and issues throughout the programme lifecycle.
  • Communicate delivery progress, key risks, and dependencies to programme stakeholders.
  • Contribute to the continuous improvement of migration methodologies, governance practices, and delivery standards.

Required Experience

  • Proven experience leading enterprise-scale data migration initiatives within financial services or another highly regulated industry.
  • Strong technical knowledge of data migration methodologies, ETL processes, data quality management, reconciliation approaches, migration tooling, and validation techniques.
  • Experience working with SaaS platforms and complex system migrations.
  • Ability to deliver migration activities in environments with limited documentation and evolving business knowledge.
  • Strong stakeholder management and cross-functional collaboration skills.
  • Excellent analytical, problem-solving, communication, and organisational abilities.
  • Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related discipline, or equivalent professional experience.

Project Challenges

The programme involves migrating from a legacy SaaS platform with limited internal knowledge and documentation. Success will depend on establishing a robust migration strategy, building effective reconciliation capabilities, and coordinating multiple stakeholders across business, technology, and vendor teams.

Initial Deliverables

Key deliverables during the initial phase of the engagement include:

  • Finalising the overall data migration strategy.
  • Defining reconciliation processes and supporting the preparation of qualitative and financial reconciliation tooling.
  • Establishing migration governance, validation, and reporting processes.
  • Coordinating the preparation of cutover and rollback plans together with business, technology teams, and the solution vendor.
  • Supporting the programme’s readiness for migration rehearsals and the production cutover.

We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects.

Recruitment Process

  • HR interview
  • Technical interview with the Engineering team
  • Client interview
  • Feedback and offer

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