Manager, Portfolio Administration

Company: Loomis Sayles
Apply for the Manager, Portfolio Administration
Location: London
Job Description:

Overview

In this role you will lead a global Portfolio Administration team delivering critical operations across derivative operations, collateral management, cash flow confirmation, accounting, reconciliation, and reporting. You will drive process improvements, strengthen controls, and partner with internal and external stakeholders to support Loomis Sayles’ evolving global infrastructure. You will manage day-to-day execution, escalate complex issues, and mentor team members to deliver accurate, client-focused service. This is a hands-on leadership role with a strong emphasis on collaboration and operational excellence in a remote/hybrid environment. You will help shape scalable, reliable processes,

Pay / Benefits

  • competitive compensation
  • discretionary annual incentive
  • comprehensive benefits package

Responsibilities

  • Manage and develop Portfolio Administration team members, including workload planning, coaching, and career growth
  • Oversee daily operational activities for timely, accurate portfolio administration execution
  • Escalate and coordinate resolution of complex operational issues with internal teams, custodians, and external partners
  • Oversee cleared derivative operations, collateral management, reconciliation, margin instructions, and issue resolution
  • Lead client cash flow confirmation processes for portfolio management and trading teams across European hours
  • Ensure procedures, controls, and documentation are current and aligned with business needs
  • Oversee portfolio accounting data entry, verification, and control of cash, securities, pricing, and related information
  • Produce standard and ad hoc reports for stakeholders and clients
  • Collaborate with trading, portfolio management, technology, compliance, and client-facing teams to improve workflows and data quality
  • Monitor trade data flows to ensure accurate accounting system transformation and timely reporting to custodians
  • Manage reconciliations of holdings, cash, and transactions across systems and custodians; maintain strong controls
  • Use metrics and reporting to identify trends, reduce risk, and improve service quality
  • Manage relationships with vendors, custodians, and counterparties; participate in system enhancements and process redesigns
  • Represent Portfolio Administration in cross-functional initiatives and readiness activities

Key requirements

  • Bachelor’s degree or equivalent experience
  • Experience in investment operations, portfolio administration, portfolio accounting, derivatives operations, reconciliation, or related asset management functions
  • Prior leadership or people-management experience
  • Strong knowledge of fixed income, equity, derivatives, cash, and/or portfolio accounting workflows
  • Proficiency with Microsoft Excel and data-driven decision making
  • Strong problem-solving, analytical, organizational, and decision-making skills
  • Excellent communication and stakeholder management, with ability to manage multiple priorities
  • Ability to lead effectively in a remote/hybrid environment
  • leadership
  • communication
  • stakeholder management
  • derivatives operations
  • collateral management
  • portfolio accounting workflows

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Posted: October 1st, 2026