Security Master & Data Management, Officer

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

Position Summary

The Security Master & Data Management Officer supports Alpha implementations and middle-office onboarding activities by coordinating Security Master (SMF) and Data Management deliverables throughout the client conversion lifecycle. The role partners with clients, product teams, conversion teams, and operational stakeholders to support data onboarding, mapping, testing, conversion readiness, and production implementation activities.

The Officer serves as a subject matter resource for Security Master and reference data processes, helping to drive project deliverables, manage risks and issues, and ensure successful conversion outcomes across multiple client engagements.

Key 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.

Education & Experience

• 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.

Required Skills

• Working knowledge of Capital Markets, Securities Master, Reference Data, Middle Office Operations, and/or IBOR/ABOR concepts.
• Strong communication and interpersonal skills with the ability to collaborate across teams and stakeholders.
• Ability to manage multiple priorities in a fast-paced environment.
• Strong analytical, organizational, and problem-solving skills.
• Experience identifying issues and driving resolution with appropriate guidance and oversight.
• Knowledge of data quality concepts and reference data processes.
• Proficiency in Microsoft Excel, Word, PowerPoint, and project tracking tools such as JIRA or similar platforms.
• Basic understanding of databases, SQL, and data management concepts preferred.

Success Measures

• Timely delivery of assigned implementation and conversion milestones.
• Quality and accuracy of Security Master and data onboarding deliverables.
• Effective collaboration with clients and internal stakeholders.
• Successful support of testing, conversion, and go-live activities.Proactive identification and resolution of project issues and risks.

About State Street

Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.

We are committed to fostering an environment where every employee feels valued and empowered to reach their full potential. As an essential partner in our shared success, you’ll benefit from inclusive development opportunities, flexible work-life support, paid volunteer days, and vibrant employee networks that keep you connected to what matters most. Join us in shaping the future.

As an Equal Opportunity Employer, we consider all qualified applicants for all positions without regard to race, creed, color, religion, national origin, ancestry, ethnicity, age, disability, genetic information, sex, sexual orientation, gender identity or expression, citizenship, marital status, domestic partnership or civil union status, familial status, military and veteran status, and other characteristics protected by applicable law.

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