Founder's Associate, Strategy Team (copy)

Summary

Flex is building an AI-native private bank for business owners, integrating banking, credit, payments, personal finance, and financial operations. The Founder's Associate will work directly with the Founder and CEO on high-priority strategic projects, market research, financial analysis, modeling, and cross-functional execution while helping build the Office of the CEO team.

Responsibilities

• Take on the CEO’s highest-priority problems directly — strategic projects, market research and competitive work, financial analysis, and cross-functional execution, often with no existing playbook
• Identify problems, develop solutions, and execute them; often working on multiple initiatives
• Build and own the models and analyses that inform major company decisions
• Collaborate with and move fluidly across various departments as business priorities shift
• As the early stages of this team grows, you will help recruit, ramp, and manage the associates who join after you

Skills

• 3–5 years in top-tier investment banking (TMT/fintech coverage), private equity, management consulting, late-stage venture capital, or a fast-growing startup
• A track record of outperformance — clear signals you were trusted with more scope, faster, than your peers
• Strong quantitative and analytical skills: advanced Excel, working knowledge of SQL, and comfort dissecting messy data and building models from scratch
• Extreme rigor and comfort operating in ambiguity at speed — priorities here change faster than the plan does
• Ideal background in math, physics, or another highly quantitative field
• Understanding of fintech, banking, or financial infrastructure

Qualifications

Must Haves

• 3–5 years in top-tier investment banking (TMT/fintech coverage), private equity, management consulting, late-stage venture capital, or a fast-growing startup
• A track record of outperformance — clear signals you were trusted with more scope, faster, than your peers
• Strong quantitative and analytical skills: advanced Excel, working knowledge of SQL, and comfort dissecting messy data and building models from scratch
• Extreme rigor and comfort operating in ambiguity at speed — priorities here change faster than the plan does

Nice to Haves

• Ideal background in math, physics, or another highly quantitative field
• Understanding of fintech, banking, or financial infrastructure

Benefits

• True ownership — Small teams, high trust, real accountability.
• Founder-level exposure — Direct access to leadership, customers, and investors.
• Elite peers — People here are builders, not tourists.
• Real upside — Meaningful equity if you help build something big.