Business Analyst - Decommissioning Project
Location: Primarily London / Horsham / Liverpool
Hybrid Working: 2–3 Days On-Site per Week
About the Role
We are seeking an experienced Business Analyst to support a large-scale legacy application decommissioning and rationalisation programme within a complex enterprise environment.
This role will focus on application retirement, integration simplification, infrastructure dependency analysis, and cost take-out initiatives across a broad technology estate. Working closely with infrastructure, security, risk, application, and business teams, you will play a key role in documenting requirements, mapping technical and operational dependencies, supporting regulatory compliance activities, and driving structured decommissioning delivery.
Key Responsibilities
* Lead business analysis activities across legacy application decommissioning and rationalisation initiatives
* Support application retirement programmes focused on integration simplification and operational cost reduction
* Conduct detailed application inventory and dependency mapping across enterprise technology estates
* Document and analyse infrastructure, application, interface, and data dependencies
* Facilitate stakeholder workshops and coordinate activity across infrastructure, security, risk, and application teams
* Produce high-quality business requirements, user stories, acceptance criteria, and supporting documentation
* Support process mapping, operational impact assessments, and transition planning activities
* Collaborate with technical and delivery teams to identify risks, blockers, and remediation activities
* Must have recent, strong experience supporting legacy application decommissioning, rationalisation, or transformation programmes
* Proven Business Analyst experience within large-scale enterprise technology environments
* Experience with application landscape mapping and infrastructure dependency analysis
* Strong understanding of CMDB structures and enterprise system relationships
* Knowledge of data lineage, data retention, and regulatory compliance considerations
* Excellent stakeholder management and cross-functional coordination skills
* Experience working across infrastructure, security, risk, and application delivery teams
* Strong documentation skills including business requirements, user stories, and acceptance criteria
* Experience using Jira and Confluence for Agile delivery and documentation management
* Strong understanding of Agile delivery methodologies and structured analysis practices
Technical & Domain Awareness
* Legacy policy administration platforms
* Claims systems and rating engines
* Middleware and enterprise integrations
* SQL and Oracle database estates
* Application and data centre rationalisation initiatives
* VMware and virtual infrastructure migration programmes
* Storage and backup environment retirement
* Disaster Recovery (DR) and network segmentation rationalisation
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