Account Manager

Manifest OS; New York (NY); On-site; USD 110,000 - 160,000; Full time

Job summary

Manifest OS is seeking an Account Manager to own a portfolio of corporate accounts, serving as the primary client contact and the internal owner of outcomes. You will convert pilots into long-term partnerships and collaborate with Product, Operations, Sales, and Marketing to ensure each engagement delivers value and growth.

You will lead end-to-end account management, run client meetings and reviews, monitor health metrics, and guide onboarding and implementation.

Qualifications

• 6+ years in account management, client success, or a client-facing B2B SaaS role.
• Proven track record growing accounts through renewals and expansion.
• Ability to hold cross-functional teams accountable to client outcomes.
• Strong judgment and bias toward action in ambiguous, fast-moving environments.
• Analytical fluency and comfort using AI tools to increase output.
• Experience building account management processes or playbooks from scratch.
• Familiarity with legal tech, professional services, or regulated industries.
• Bachelor’s degree or equivalent practical work experience.

Responsibilities

• Own accounts end-to-end from signed contract through renewal and expansion.
• Run client meetings, business reviews, and escalations with confidence.
• Track account health, flag risks early, and ensure client KPIs are met.
• Oversee onboarding, including data migration and technical implementation.
• Bring structured client feedback to Product and Engineering to shape the roadmap.
• Partner with Sales and Marketing on handoffs, case studies, and growth plays.
• Build the playbooks and dashboards that make great account management repeatable.

Skills

Account management

Client success

Cross-functional leadership

Analytical thinking

AI tools fluency

Playbooks/process design

B2B SaaS

Education

Bachelor’s degree

Job description

About Manifest

Manifest OS is the leading AI-native company on a mission to replace the billable hour and make legal services more accessible for American businesses and consumers. We power the next generation of AI-native law firms with one unified global brand, a proprietary technology platform, and a centralized back office — enabling lawyers to eliminate the administrative burden and focus on delivering exceptional outcomes for their clients. Manifest OS has raised a $60M Series A from Menlo Ventures, Kleiner Perkins, First Round, and Quiet Capital.

About the Role

Manifest is hiring a Account Manager to own a portfolio of corporate accounts — the company's top growth priority for 2026 and beyond. You'll serve as the primary point of contact for your clients and the internal owner of their outcomes. You'll convert pilots into long-term partnerships and work cross-functionally with Product, Operations, Sales, and Marketing to make every engagement deliver.

What You’ll Do

• Own accounts end-to-end from signed contract through renewal and expansion

• Run client meetings, business reviews, and escalations with confidence

• Track account health, flag risks early, and ensure client KPIs are met

• Oversee onboarding, including data migration and technical implementation

• Bring structured client feedback to Product and Engineering to shape the roadmap

• Partner with Sales and Marketing on handoffs, case studies, and growth plays

• Build the playbooks and dashboards that make great account management repeatable

What We’re Looking For

• 6+ years in account management, client success, or a client-facing B2B SaaS role

• Proven track record growing accounts through renewals and expansion

• Ability to hold cross-functional teams accountable to client outcomes

• Strong judgment and bias toward action in ambiguous, fast-moving environments

• Analytical fluency and comfort using AI tools to increase output

• Experience building account management processes or playbooks from scratch

• Familiarity with legal tech, professional services, or regulated industries

• Bachelor’s degree or equivalent practical work experience.

This is for you if....

You want end-to-end ownership, not a narrowly scoped support role. You're energized by building structure where none yet exists. You want equity and real impact at a company reshaping access to justice.

This is not for you if....

You prefer a fully defined playbook over building one yourself. You're uncomfortable with full accountability for client outcomes. Five days a week in-office in New York City doesn't work for you.