About this role.
Flex is hiring an Account Manager to own a portfolio of high-growth business customers using its fintech platform. The role centers on onboarding, customer adoption, retention, renewals, expansion, customer-health analysis, and churn mitigation. This person will translate customer feedback into product recommendations and help build scalable customer-success playbooks. Success requires 2-5 years of customer success or account management experience in fintech, SaaS, or financial services, along with strong commercial and analytical skills. The environment is a fast-moving startup with high ownership, cross-functional collaboration, and quota expectations.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Job Complexity
4/5Pace & Pressure
5/5Autonomy Level
5/5Communication Load
5/5Salary analysis
Estimated compensation compared with the broader US market for similar roles.
Core skills
Skills and capabilities most closely associated with this opportunity.
Sample interview questions
I segment accounts by revenue potential, health indicators, lifecycle stage, and renewal timing. I use regular business reviews and usage data to address adoption barriers early, then align expansion recommendations to a demonstrated customer need and measurable outcome.
I noticed declining product usage and reduced executive engagement in an account approaching renewal. After diagnosing the workflow issue, I coordinated a tailored enablement plan with internal partners, set success milestones, and reestablished sponsor alignment, leading to renewed engagement and retention.
I would begin with the customer's operational goal, explain the feature in plain language, and connect it to a specific workflow or financial outcome. I would confirm understanding through examples, clarify any risk or implementation considerations, and provide a concise follow-up plan.
I would monitor product adoption, transaction or spend activity, feature utilization, support trends, stakeholder engagement, onboarding completion, payment behavior where appropriate, renewal timing, and qualitative customer sentiment. Together, these signals help prioritize proactive outreach and risk mitigation.
I synthesize feedback across accounts to distinguish isolated requests from repeatable patterns, document the customer problem and business impact, and provide clear examples to Product. I then close the loop with customers on priorities, decisions, and available workarounds or releases.
Flex is building the AI-native private bank for business owners.
We’re re-architecting the entire financial system for entrepreneurs—from the first dollar a business earns to how that value compounds, moves, and is ultimately spent in real life. Banking, credit, payments, personal finance, and financial operations—rebuilt from the ground up as a single, intelligent system. Flex is the full financial home for ambitious owners.
Since launching publicly in September 2023, Flex has scaled from zero to nine-figure annualized revenue, with a clear path to profitability by late 2026. We move fast, ship relentlessly, and operate with extreme ownership.
Our customers are affluent business owners ($3–$200M in revenue)—the backbone of the economy and one of the most underserved segments in finance. They’re stuck with outdated banks and fragmented tools. We’re replacing all of it. The opportunity is massive: a ~$1T+ revenue market hiding in plain sight. Our ambition is to build a $100B+ company by delivering a product that is fundamentally better—not incrementally improved.
Flex has raised $100M+ in equity and $300M+ in debt.
– Mission-critical problems: We build software that directly controls how money moves at scale.
– High bar, low ego: Small teams, exceptional people, real ownership.
– Speed over comfort: We prioritize execution, quality, clarity, and results.
– Enduring impact: What we’re building will define how a generation of owners runs their businesses.
Team & Locations
We hire exceptional people who want to build hard things and see their work matter immediately. Roles are available in: San Francisco, Miami, New York, and fully remote.
Flex Fuels Ambition.
🕺About the Role
As an Account Manager at Flex, you’ll take full ownership of a portfolio of high-growth customers, driving adoption, retention, and expansion across our suite of financial products. You’ll play a key role in helping businesses scale efficiently by building strong relationships, identifying growth opportunities, and ensuring every customer gets maximum value from Flex.You’ll also serve as the voice of the customer, turning feedback and insights into actionable recommendations that shape future products and features. Your input will directly influence how Flex evolves to better serve the needs of our customers and the broader market.
✅ What You’ll Do
- Own customer relationships: Serve as the main point of contact for a portfolio of clients, ensuring onboarding, satisfaction, engagement, and long-term retention.
- Drive revenue growth: Identify opportunities to expand customer value, deepening product adoption, and aligning new Flex solutions to their specific business needs and pain points.
- Proactively manage accounts: Analyze customer health, usage, and spend patterns to anticipate needs and mitigate churn risk.
- Influence product direction: Gather and synthesize customer feedback to help shape future features, workflows, and user experiences.
- Build scalable processes: Help design, refine, and document customer success playbooks for an evolving, fast-moving startup environment.
- Collaborate cross-functionally: Partner with Sales, Product, Risk, and Operations to deliver a seamless experience and measurable business outcomes.
⚡️ What Makes You a Great Fit
- 2–5 years of experience in Customer Success, Account Management, within FinTech, SaaS, or financial services.
- Proven ability to manage a book of business, drive renewals, and expand account value.
- Excellent communication skills, able to distill complex financial or technical topics into clear, actionable insights.
- Entrepreneurial mindset with comfort operating in ambiguity and a fast-changing environment.
- Strong analytical instincts and a passion for helping customers succeed.
- Proven track record of hitting and exceeding quotas Consistently a top 10% performer
Compensation
This position is also eligible for a commission-based incentive plan. The estimated on-target earnings (OTE) for this role, including base and variable compensation, is $120,000-150,000
Additional Information
Why Join Us
Build something generational — Capture the full lifecycle of money for ambitious business owners.
Work on real money, real risk — Payments, credit, and banking at serious scale.
Solve hard problems — AI, underwriting, compliance, and global finance from first principles.
True ownership — Small teams, high trust, real accountability.
Founder-level exposure — Direct access to leadership, customers, and investors.
High bar, high taste — Move fast without cutting corners.
Elite peers — People here are builders, not tourists.
Real upside — Meaningful equity if you help build something big.
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