Reference Data Operations Specialist

Millennium; New York (NY); On-site; USD 160,000 - 250,000; Full time

Job summary

Millennium is seeking an experienced Data Operations professional to manage the Global Security Master for bank debt instruments and ensure data accuracy.

You will work with front, middle and back office teams and external vendors to resolve issues, define requirements with Development, and support new processes.

The role requires 5–7+ years in financial services, knowledge of Bank Debt and Leveraged Loans, and strong Excel/SQL skills.

Qualifications

• 5–7+ years of experience in financial services, ideally within operations at broker‑dealer or asset‑management firms, with experience in Security Master and reference data.
• Strong knowledge of financial instruments, particularly Bank Debt, Leveraged Loans, Private Debt and other less liquid credit instruments.
• Experience working with Bloomberg and platforms such as Refinitiv, Wall Street Office, ClearPar, Markit (S&P Global), ICE and similar data providers.
• Ability to implement and maintain systems, procedures and controls that support scalable, well‑governed operations.
• Strong communication and interpersonal skills with the ability to engage effectively with senior stakeholders.

Responsibilities

• Ensure the accurate setup and maintenance of tradable securities in Millennium’s Global Security Master, focusing on bank debt instruments.
• Oversee data quality control checks through system‑driven and business validation processes.
• Create and maintain procedures, workflows and controls that strengthen operational efficiency and data integrity.
• Partner with internal front, middle and back‑office stakeholders, as well as external data vendors, to resolve ad‑hoc issues promptly.
• Work with Development to define requirements and support design and rollout of new processes and controls.
• Evaluate and implement new vendors and products to enhance operational capabilities in Bank Debt and Leveraged Loans.
• Oversee key bank loan lifecycle events, ensuring timely and accurate Security Master updates.
• Support servicing, pricing accuracy and risk management of these assets while maintaining reference data integrity.

Skills

SQL queries

Microsoft Excel

Communication

Stakeholder management

Problem solving

Tools

Bloomberg

Refinitiv

Wall Street Office

ClearPar

Markit

ICE

Job description

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors.

Meet the Team

The Operations & Middle Office department is one of the largest groups at Millennium. Within the department, the Data Operations team sits in the Control function and is responsible for overseeing the firm’s Global Security Master through a range of data quality measures. The team also manages processes for onboarding new securities and attributes, supporting accurate and well‑controlled operational data across the platform.

What You’ll Do

• Ensure the accurate setup and maintenance of tradable securities in Millennium’s Global Security Master, with a particular focus on bank debt instruments
• Oversee data quality control checks through system‑driven and business validation processes
• Create and maintain procedures, workflows and controls that strengthen operational efficiency and data integrity
• Partner with internal front, middle and back‑office stakeholders, as well as external data vendors, to resolve ad‑hoc issues in a timely manner
• Work closely with Development to define requirements and support the design and rollout of new processes, workflows and controls
• Help evaluate and implement new vendors and products within the Bank Debt and Leveraged Loan space to enhance operational capabilities
• Oversee key bank loan lifecycle events, including paydowns, drawdowns, interest rate resets, PIK interest calculations, delayed compensation accruals and calculations, and trade settlements, ensuring timely and accurate Security Master updates
• Support the operational servicing, pricing accuracy and risk management of these assets while maintaining the integrity of the firm’s reference data

What You Bring

• 5–7+ years of experience in financial services, ideally within operations at a broker‑dealer or asset‑management firm, with experience in Security Master and reference data
• Strong knowledge of financial instruments, particularly Bank Debt, Leveraged Loans, Private Debt and other less liquid credit instruments
• Experience working with Bloomberg, as well as platforms and vendors such as Refinitiv, Wall Street Office, ClearPar, Markit (S & P Global), ICE and similar data providers
• Ability to implement and maintain systems, procedures and controls that support scalable, well‑governed operations
• Working knowledge of SQL queries and strong proficiency in Microsoft Excel
• Strong communication and interpersonal skills, with the ability to support and engage effectively with senior stakeholders
• Proven ability to meet deadlines and operate effectively in a team‑based environment
• Self‑directed, detail‑oriented problem solver with strong ownership and a focus on continuous improvement

Salary Range

Millennium offers a total compensation package which includes a base salary, discretionary performance bonus, and comprehensive benefits. The estimated base salary range for this position is $160,000 to $250,000, which is specific to New York and may change in the future. When finalizing an offer, we take into consideration an individual’s experience level and the qualifications they bring to the role to formulate a competitive total compensation package.