Assistant Manager, Client Development

Simpson Thacher serves as counsel and trusted adviser to the world’s most successful and innovative sponsors. This is a high-impact opportunity to partner with senior attorneys and Client Development & Engagement leaders, helping to showcase the Firm’s Investment Funds platform, deepen client relationships, and drive strategic growth. You’ll be part of a dynamic team that values initiative, collaboration, and intellectual curiosity—and you’ll work closely with colleagues across the Transactional practices and our global Client Development & Engagement organization.

The Client Development & Engagement Funds Assistant Manager is responsible for supporting the Firm’s global client development initiatives for the funds practice by organizing and leveraging information about the Funds practice and lawyers, and providing research and analysis about clients, competitors, markets, trends and industries. This role assists Client Development & Engagement in ensuring work product, communications and critical functions meet the Firm’s high standard of excellence.

The Assistant Manager operates with a high degree of independence and judgment, serving as a trusted advisor to partners and practice leaders on client development strategy, market positioning, and growth initiatives. This role is responsible for shaping priorities, integrating cross-practice efforts, and ensuring the Firm’s capabilities are presented clearly, consistently, and competitively to clients and the market.

Responsibilities

Practice & Sector Strategy

• Serve as a Client Development & Engagement lead for the Funds and Boston office initiatives and pitches
• Advise partners and practice leadership on client development strategies, market trends, competitive positioning, and growth opportunities across relevant practices.
• Support the integration of funds, registered funds, regulatory, M&A—into a cohesive offering.
• Support several client teams that have Investment Funds or Boston office senior partners
• Anticipate and proactively address the business development and client engagement needs of practice leaders and senior partners.
  
  

Client Development & Growth Initiatives

• Lead the development of strategic pitches, proposals, and responses to RFPs for Investment Funds and related specialist areas, exercising judgment on positioning, messaging, and prioritization.
• Assist in coordinating Firm-sponsored events, presentations and event logistics, (e.g., formatting invitations, tracking RSVPs, and assisting with follow up)
• Partner with attorneys to develop tailored client strategies, relationship plans, and opportunity pipelines.
• Shape and oversee submissions for legal directories, rankings, awards, and surveys relevant to focus areas.
• Provide strategic guidance on client-facing materials, ensuring alignment with Firm priorities and consistent articulation of capabilities.
• Work with CDE team members to accurately maintain the Firm's engagement database and deals and case experience across all channels, as well as other operations and systems.
• Prepare or oversee preparation and management of directory submissions and survey responses for various legal and business directories and publications.
  
  

Market Intelligence & Insight

• Oversee research and analysis related to clients, prospects, competitors, and industry trends impacting fundraising, investment funds, private equity.
• Translate complex market and regulatory developments into actionable insights for client teams, partners and practice leadership.
• Ensure intelligence and insights are synthesized at a strategic level, rather than delivered as raw research.
  
  

Cross-Practice Coordination & Execution

• Act as a central point of coordination across Registered Funds, Private Funds, GP Stakes practices to support integrated client development efforts.
• Collaborate with communications, events, and other Client Development & Engagement teams to deliver and elevate high-impact initiatives.
• Exercise discretion and prioritization in managing demand, ensuring focus on high-value, strategic work.
  
  

Leadership & Team Development

• Provide guidance, mentorship, and oversight to junior Client Development & Engagement team members supporting registered Funds, Private Funds, GP Stakes and related practices.
• Set clear expectations, review work product, and support professional development within the team.
• Model senior-level judgment, accountability, and partnership with attorneys and internal stakeholders.
  
  

Required Education

• Bachelor’s degree
  
  

Required

Skills and Experience

• Bachelor’s degree required
• Significant experience (4-7 years) in finance, business development, client development, or practice management within a law firm or professional services environment.
• Strong familiarity with private equity, financial institutions, investment banks; experience supporting funds or secondaries preferred
• Demonstrated ability to operate independently, exercise sound judgment, and advise senior stakeholders.
• Excellent written and verbal communication skills, with the ability to translate complex information into clear, compelling messaging.
• Proven ability to manage multiple priorities in a fast-paced, high-expectation environment.
• High level of discretion, professionalism, and credibility in partner-facing interactions.
  
  

Preferred

• 4 years as a marketing, financial services-related role is highly desirable
• Prior experience in marketing and business development field at a law firm is helpful or in funds, secondaries/GP stakes, registered funds
• Experience with website maintenance and/or Client Relationship Management (CRM) system experience
• Familiarity with Pitchbook and Preqin
• Familiarity with experience management databases such as Content Pilot or Foundation
  
  

Key Attributes for Success

• Strategic thinker with strong commercial instincts
• Comfortable operating at both the “big picture” and executional levels
• Trusted advisor mindset with the confidence to make recommendations
• Highly organized, proactive, and solutions-oriented
• Collaborative, adaptable, and able to navigate ambiguity
  
  

Salary Information

NY Only: The estimated base salary range for this position is $140,000 to $180,000 at the time of posting.

The actual salary offered will depend on a variety of factors, including without limitation, the qualifications of the individual applicant for the position, years of relevant experience, level of education attained, certifications or other professional licenses held, and if applicable, the location in which the applicant lives and/or from which they will be performing the job. This role is exempt meaning it is not overtime pay eligible.

Simpson Thacher will not sponsor applicants for work visas for this position.

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