The Challenge
Interactive Brokers (S&P 500 fintech) needs a growth leader to architect and scale a global experimentation engine. You'll own the entire conversion funnel-from landing pages to funded accounts-across 200+ countries with measurable ROI accountability.
Your Mission
Audit and baseline current conversion metrics across visitor→application→funded account funnels globally; establish statistical rigor and test governance framework
Build and staff your experimentation team (growth marketers + analysts); define KPI framework tied to acquisition cost and account quality
Launch 3-5 high-impact experiments on landing pages, onboarding flows, and incentive structures; establish weekly test velocity cadence
Map retargeting and paid-to-owned integration strategy with Media Analytics; identify low-hanging fruit in funnel stitching and incrementality
Scale experimentation infrastructure across 5+ key markets; achieve 10+ concurrent tests with clear statistical governance and 95%+ velocity hit rate
Drive 15-25% uplift in visitor-to-application conversion through optimized landing pages, dynamic personalization, and AI-native content generation
Implement lifecycle and email/SMS sequencing experiments; measure incremental impact on funded account quality and LTV
Build AI-native optimization layer (audience segmentation, content personalization, adaptive testing); document playbook for global rollout
KPIs You'll Own
Visitor-to-Application Conversion Rate
Percentage of website visitors who complete account application; primary north star for owned channel optimization.
Application-to-Funded Rate
Percentage of applicants who fund their account; measures onboarding effectiveness and funnel quality.
Cost Per Funded Account
Blended acquisition cost across paid and owned channels per funded account; core profitability metric.
Test Velocity & Statistical Rigor
Number of concurrent experiments running and percentage reaching statistical significance; measures experimentation program maturity.
Funded Account Quality (by cohort)
Post-funding metrics (deposits, trading activity, retention) by acquisition source; ensures growth is sustainable.
Incremental Impact (by channel/test)
Lift measured via holdout/control groups; isolates true causal impact vs. attribution bias in paid+owned mix.
Tools & Stack
Your Team
Your Manager
Chief Marketing Officer or VP of Marketing (not specified)
Current Team
Undefined; you'll build from scratch or inherit existing growth team
New structure-you own hiring strategy for growth marketers and experimentation analysts
The Package
Salary
$200K-$300K base
Variable
Annual performance-based bonus
Equity
Stock grants
Remote
Hybrid: 3 days in office (New York, NY) / 2 days remote
Benefits & Perks
Company Intelligence
Interactive Brokers is an S&P 500 global fintech leader serving retail and institutional traders across 200+ countries. They operate at massive scale with owned and paid channels, complex international compliance, and high-volume funnel optimization opportunities.
Funding
Public (S&P 500)
Customers
Retail traders, institutional clients globally
Culture
Performance-driven, measurement-obsessed, data-first culture; expects ownership and accountability in measurable environments
Is This Role For You?
- You've led global growth at fintech, marketplaces, or high-scale SaaS and shipped 50+ experiments per quarter with rigor
- You think in funnels, incrementality, and cohort analysis-not vanity metrics-and can teach that mindset to others
- You're fluent in AI-native tools and see them as force multipliers for personalization, segmentation, and test execution
- You thrive in performance-accountable environments where every dollar of marketing spend is tied to ROI and account quality
- You're a brand/content marketer uncomfortable owning hard conversion metrics or collaborating with analytics/data science teams
- You lack hands-on experimentation design experience or prefer strategic planning over day-to-day test execution and velocity
- You need full remote flexibility or resist the 3-days-in-office hybrid model for a fintech HQ in New York
Interview Process
Screening
Phone conversation on growth background, experimentation track record, and AI/tools experience
Case Study / Take-Home
Analyze a mock conversion funnel; propose 5 experiments with hypothesis, success metrics, and expected lift
Leadership & Collaboration Round
Panel with CMO/VP Marketing, VP Product, and VP Analytics; discuss team building, cross-functional alignment, and global scaling
Final Executive Round
C-suite conversation on vision for growth function, AI integration, and 12-month strategy
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About Growth Marketing roles
Growth marketers drive user acquisition, activation, and retention through data-driven experimentation. They sit at the intersection of product, data, and marketing — running A/B tests, building funnels, and scaling what works.