Senior Account Manager, Enterprise Client Services

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Sezzle is seeking a Senior Account Manager, Enterprise Client Services who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. 

Sezzle's Enterprise Client Services team serves as the strategic partner to many of our largest and most valuable merchants. As a Senior Account Manager, you'll own a portfolio of Enterprise accounts, serving as the primary point of contact from implementation through long-term growth and renewal. You'll partner closely with Sales, Engineering, Product, Marketing, Legal, Risk, and Support to deliver an exceptional merchant experience while identifying opportunities to expand the partnership and drive revenue growth.

This is a senior individual contributor role designed for someone who can independently manage complex Enterprise relationships, confidently communicate with executive stakeholders, and proactively solve problems before they impact the merchant experience. While this role does not include direct people management responsibilities, it requires strong leadership, ownership, and cross-functional influence.

• Serve as the primary relationship owner for a portfolio of Enterprise merchants, managing the partnership from implementation through renewal.
• Develop a deep understanding of each merchant's business, goals, competitive landscape, key initiatives, and performance metrics to become the internal expert on every assigned account.
• Drive account growth by identifying opportunities to expand product adoption, launch new channels, introduce new Sezzle products, and negotiate commercial renewals.
• Own account health and retention by proactively monitoring merchant performance, identifying potential risks early, and coordinating internal teams to resolve issues before they impact the client experience.
• Lead Enterprise merchant onboarding, implementations, and new product launches by coordinating work across Engineering, Product, Marketing, Legal, Revenue Operations, Risk, and Support.
• Act as the quarterback for your accounts, ensuring internal teams remain aligned and merchants receive timely, accurate, and consistent communication.
• Translate technical discussions, internal updates, and cross-functional feedback into polished, merchant-ready communications that represent Sezzle with a single, professional voice.
• Prepare and deliver Quarterly Business Reviews (QBRs), executive business updates, and strategic account plans that leverage performance data to identify opportunities and guide future growth.
• Partner closely with Data & Analytics to interpret merchant performance, including approval rates, order volume, customer behavior, AOV, LTV, and product adoption, using insights to drive strategic recommendations.
• Maintain strong documentation of account history, strategic plans, launches, renewals, meeting notes, and key decisions to ensure continuity across the organization.
• Maintain high responsiveness to merchant communications while keeping internal stakeholders informed through dedicated account channels and regular updates.
• Continuously monitor industry trends, merchant performance, and competitive activity to proactively identify opportunities and risks for your portfolio.
• Embrace AI-powered tools and automation to improve productivity, streamline workflows, create client-facing materials, and deliver a best-in-class merchant experience

• 5+ years of experience in Enterprise Account Management, Client Services, Customer Success, Strategic Partnerships, or another client-facing commercial role, preferably within payments, fintech, SaaS, or e-commerce.
• Proven success managing complex Enterprise customer relationships with responsibility for retention, account growth, renewals, and executive stakeholder management.
• Experience leading complex cross-functional projects involving Product, Engineering, Legal, Marketing, Support, and Operations.
• Strong commercial acumen with experience negotiating renewals, pricing discussions, and partnership expansions.
• Excellent analytical skills with the ability to interpret performance data and turn insights into actionable business recommendations.
• Outstanding written and verbal communication skills, with the ability to communicate effectively from technical teams to C-level executives.
• Highly organized with exceptional project management skills and the ability to manage multiple high-priority accounts simultaneously.
• Demonstrated ability to operate independently with a high degree of ownership, accountability, and sound judgment.
• Bachelor's degree or equivalent professional experience.
• Demonstrated experience working with Claude or equivalent large language model tools is required; candidates must be comfortable leveraging AI to enhance productivity, research, and communication.

• Experience in Buy Now, Pay Later (BNPL), payments, card processing, or broader fintech.
• Familiarity with Salesforce, Vitally, Redash, or similar CRM and analytics platforms.
• Experience working in a fast-paced, high-growth startup environment.
• Experience managing large strategic merchants.