Security Master & Data Onboarding Lead

State Street; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

State Street is seeking a Security Master & Data Management Officer to support Alpha implementations and middle-office onboarding. You will coordinate Security Master and reference data activities across client conversions, partner with product and operations teams, and ensure timely delivery of data onboarding and testing deliverables.

The role requires a Bachelor’s degree in a related field and 3–5 years in financial services or data management, with strong communications, SQL, and Excel

Qualifications

• Bachelor’s Degree in Finance, Accounting, Business Administration, or related field.
• 3–5 years of experience in Financial Services, Client Onboarding, Middle Office, Security Master, Reference Data, or related operational functions.
• Implementation, conversion, or project coordination experience preferred.
• Strong communication and interpersonal skills with the ability to collaborate across teams and stakeholders.
• Proficiency with Microsoft Excel, Word, PowerPoint, and project tracking tools such as JIRA or similar platforms.

Responsibilities

• Coordinate Security Master and Data Management activities throughout the implementation and conversion lifecycle.
• Support client onboarding efforts by gathering requirements, facilitating data analysis, and assisting with solution design and data mapping activities.
• Work closely with Product SMEs, Conversion Managers, Technology, and Operations teams to ensure project milestones and deliverables are achieved.
• Assist in the development and review of mapping specifications, conversion extracts, and testing plans.
• Support dry runs, dress rehearsals, cutover activities, go-live events, and post-production stabilization.
• Track project risks, issues, dependencies, and action items, escalating concerns as appropriate.
• Partner with clients and internal stakeholders to address data-related questions and support issue resolution.
• Contribute to data quality reviews and validation activities to ensure completeness and accuracy of security reference data.
• Support implementation of both standard and client-specific requirements within established operating models and processes.
• Participate in occasional weekend conversion events and after-hours implementation activities as required.

Skills

Capital Markets

Security Master

Reference Data

Middle Office

IBOR/ABOR concepts

Communication

Project coordination

Education

Bachelor’s Degree in Finance, Accounting, Business Administration, or related field

Tools

JIRA

SQL

Databases

Excel

Job description

State Street is seeking a Security Master & Data Management Officer to support Alpha implementations and middle-office onboarding. You will coordinate Security Master and reference data activities across client conversions, partner with product and operations teams, and ensure timely delivery of data onboarding and testing deliverables.

The role requires a Bachelor’s degree in a related field and 3–5 years in financial services or data management, with strong communications, SQL, and Excel