Senior Portfolio Manager Assistant

Threadneedle group; Northern, New York (KY, NY); Hybrid; USD 77,000 - 90,000; Full time

Job summary

Columbia Threadneedle Investments in New York, NY seeks a Senior Portfolio Manager Assistant to support daily portfolio operations, trade-readiness, and rebalancing in a fast-paced environment. You will collaborate with Portfolio Managers, internal operations teams, external partners, and vendors to ensure accurate processing and timely issue resolution while driving process improvements.

The role emphasizes data integrity, effective communication, and a disciplined, detail-oriented approach to

Qualifications

• Degree in Mathematics or a related quantitative discipline.
• Strong analytical and problem-solving skills with a data-driven approach.
• Excellent written and verbal communication; attention to detail.
• Ability to work in a fast-paced, deadline-driven environment.
• Proficiency with MS Office Suite (Excel, Word, PowerPoint, Visio).

Responsibilities

• Execute daily portfolio validation and monitoring processes.
• Support trading and rebalancing activities and order entry.
• Identify issues to minimize operational risk and ensure timely resolution.
• Document processes and drive automation and efficiency initiatives.
• Coordinate with internal teams and external partners.

Skills

Analytical thinking

Problem-solving

Attention to detail

Communication skills

Organizational skills

Team collaboration

Fast-paced adaptability

Education

Mathematics degree or related quantitative discipline

Tools

Excel

Word

PowerPoint

Visio

Automation tools

Job description

## Senior Portfolio Manager AssistantApply: Hybrid: New York, New York: Full time: Posted Yesterday: End Date: November 30, 2026 (30+ days left to apply): R26\\_3727**About Our Company**Working at Columbia Threadneedle Investments you'll find growth and career opportunities across all of our businesses.We're intentionally built to help you succeed. Our reach is expansive with a Columbia Threadneedle Investments global team of 2,300 people working together. Our capability is diverse with more than 550 investment professionals sharing global perspectives across all major asset classes and markets. Our clients have access to a broad array of investment strategies, and we have the capability to create bespoke solutions matched to clients' specific requirements. Our unwavering focus on our clients and strong financial foundation connects each of our enterprise businesses — Ameriprise Financial, Columbia Threadneedle Investments and RiverSource Insurance and Annuities.**Job Description**The Portfolio Management Assistant supports daily portfolio operations, trade-readiness, rebalancing activity, business development activities, issue resolution, and process improvement efforts. This role requires strong attention to detail, analytical problem-solving, effective communication, and the ability to work collaboratively with Portfolio Managers, internal operations teams, external business partners, and vendors in a fast-paced environment.**How you'll spend your time...**Execute daily portfolio validation and monitoring processes, including validation checks, automated reporting review, cash position tracking, and flow monitoring to ensure accurate portfolio operations.Identify and escalate portfolio issues requiring immediate attention to minimize operational risk and support timely resolution.Implement portfolio rebalance scheduling in preparation for trading activities.Support trading and rebalancing activity by raising orders in order management systems and acting as a second set of eyes for Portfolio Managers.Execute market orders and manage corporate actions to support accurate and efficient portfolio activity.Communicate with external business partners, vendors, internal operations teams, and counterparties to support smooth daily operations.Troubleshoot settlement issues, monitor partial fills, and coordinate follow-ups to resolve operational breaks.Drive process improvement and documentation initiatives by identifying automation opportunities, developing standard operating procedures, and maintaining process documentation to support business continuity.Review client proposals to ensure data integrity before sending to Distribution partners.**To be successful in this role you will have...** Ability to work effectively in a fast-paced, deadline-driven environment.Strong analytical and problem-solving skills with the ability to define problems, collect data, establish facts, and draw valid conclusions.Exceptional attention to detail and commitment to accuracy.Excellent written and verbal communication skills.Strong organizational skills with the ability to multi-task, prioritize, and follow through on deadlines.Task-oriented approach with a focus on follow-ups, accountability, and timely execution.Ability to build collaborative relationships across teams and business partners.Inquisitive mindset with a commitment to continuous learning and process improvement.Highly analytical professional with a degree in Mathematics or a related quantitative discipline, strong technical and programming skills, and the ability to apply data-driven solutions to complex business and operational challenges.**It would be great if you also had...**Financial services industry experience.Understanding of direct indexing, investment strategies, and market dynamics.Familiarity with portfolio optimization concepts.Intermediate to advanced Microsoft Office skills, including Excel, Word, PowerPoint, and Visio.Experience with process automation tools.Foundational knowledge of AI theory and practical automation use cases.**U.S. Work Authorization & Sponsorship**Applicants must have a valid work authorization that does not now, or in the future, require visa sponsorship for employment in the United States (e.g., H-1B, F-1 CPT, F-1 OPT, TN).**In-Office Collaboration**We are a client-centric, relationship-based business. Working together, in-person, is foundational to how we achieve results. By fostering a culture of face-to-face collaboration, idea sharing, productivity and personal connection, we deliver for our stakeholders — clients, advisors, employees and shareholders. Our employees work in the office at least four (4) days per week, with flexibility to work from home one (1) day per week. Some roles may require additional in-office time or different in-office expectations, and specific requirements will be discussed during the hiring process.**Base Pay Salary**The estimated base salary for this role is $76,700 - $90,000 per year. We have a pay-for-performance compensation philosophy. Your initial total compensation may vary based on job-related knowledge, skills, experience, and geographical work location. In addition, most of our roles are eligible for variable pay in the form of bonus, commissions, and/or long-term incentives depending on the role. We also have a competitive and comprehensive benefits program that supports all aspects of your health and well-being, including but not limited to vacation time, sick time, 401(k), and health, dental and life insurances.**Full-Time/Part-Time**Full time**Exempt/Non-Exempt**Non-Exempt**Job Family Group**Investment Management**Line of Business**AMINV US Asset Management*Columbia Threadneedle is a people business, and we recognise that our success is due to our talented people, who bring diversity of thought, complementary skills and capabilities. We are committed to fostering an inclusive and performance-based culture where everyone can belong, grow, contribute and realise their potential.**Columbia Threadneedle is an equal opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, ancestry, age, physical or mental disability, medical condition, pregnancy, military status, veteran status, genetic information, citizenship, disability status, marital status, family status or any other basis prohibited by law.*