Email Nurture Sequence: Fintech Scale Checklist to Scale Audit

Trigger: User downloads "Fintech Scale Checklist: 20 Traps That Stall Growth" Goal: Convert to Scale Audit consultation booking Timeline: Day 0, Day 3, Day 7

Email 1: Immediate Delivery + Quick Win (Day 0)

Subject: Your Fintech Scale Checklist + One Critical Fix

Hi [First Name],

Thanks for downloading the Fintech Scale Checklist! It's attached below.

Quick question: Which of these 20 traps is hitting you hardest right now?

Most fintech CTOs tell me it's #7: "Database connection pool exhaustion during peak trading hours."

Here's a 15-minute fix that saved one of our clients €200K in downtime:

# Add this to your connection pool config
{pool_size, 50},
{max_overflow, 100},
{checkout_timeout, 30000}

This BEAM pattern prevents the cascade failure that kills most payment systems during Black Friday spikes.

Your next step: Run through items 1-10 in the checklist this week. Mark any you've seen in production.

Reply and tell me which trap caught your attention—I read every response.

Best, Happi

P.S. If you're seeing multiple traps from the checklist, we should talk. Our Scale Audit typically catches 12-15 critical issues in the first week.

Email 2: Case Study + Social Proof (Day 3)

Subject: How we stabilized Klarna's payment system

Hi [First Name],

Did you get a chance to review the checklist?

I wanted to share what happened when we worked with Klarna on their payment system (trap #3 from your checklist: "Synchronous transaction validation chains").

The challenge: Klarna's core system was unstable and couldn't meet their increased traffic demands. They needed expert help with their Erlang-based payment infrastructure.

Our approach: We provided expert advisory for their core system development, focusing on:

• Erlang system architecture optimization
• Advanced monitoring implementation
• Creating the Kappa framework to manage codebase complexity (now open-source)

The result: We successfully stabilized their most vital payment system, allowing them to handle their rapidly growing transaction volume.

Klarna's CTO Pär Isaksson said: "Tobias is one of the more talented Engineers I have had the pleasure to work with... I can highly recommend Tobias and there will always be an open position in my organization for him."

That's exactly what our Scale Audit prevents.

We help identify scaling bottlenecks in your fintech backend before they become critical issues—just like we did for Deutsche Telekom (now handling 1 billion+ transactions daily) and Laya (acquired after just 18 months).

Curious how this applies to your system? Hit reply and describe your biggest scaling challenge. I'll share relevant insights from our experience.

Best, Happi

P.S. The Kappa framework we developed for Klarna is now open-source. Happy to share how it might help with your codebase complexity.

Email 3: Direct Invitation + Risk Reversal (Day 7)

Subject: Your Scale Audit invitation (€15K, 2 weeks)

Hi [First Name],

Last email about your fintech scaling challenges.

Based on your interest in the checklist, I'd like to invite you to our Scale Audit program.

Here's what happens:

Week 1: We analyze your BEAM backend architecture

• Review your Erlang/Elixir codebase for the 20 traps
• Load test your system under realistic fintech traffic
• Map your compliance and security bottlenecks

Week 2: We deliver your action plan

• Prioritized list of fixes (highest ROI first)
• BEAM-specific code examples for each solution
• Timeline and effort estimates for implementation

Investment: €15,000 for the complete 2-week audit Guarantee: We'll identify at least 5 critical scaling issues, or you pay nothing

Why this works for fintech:

• Deutsche Telekom: Built system handling 15,000+ transactions/second (1B+ daily)
• Klarna: Stabilized their vital payment system under high traffic
• Laya: Our architecture guidance led to acquisition in just 18 months

Ready to see what we'd find in your system?

Schedule Your Scale Audit →

The call takes 30 minutes. We'll discuss your architecture and confirm if the audit is a good fit.

Best, Happi

P.S. Not ready yet? No problem. Keep the checklist handy—when you hit your next scaling crisis at 2am, you'll know exactly who to call.

Email Implementation Notes

Setup in Email Platform:

1. Trigger: Form submission on fintech-scale-checklist page
2. Delay settings: Immediate, +3 days, +7 days
3. Unsubscribe link in footer of each email
4. Track: Open rates, click rates, reply rates, calendar bookings

Success Metrics (Target):

• Email 1: 40%+ open rate, 5%+ reply rate
• Email 2: 30%+ open rate, 3%+ click rate
• Email 3: 25%+ open rate, 8%+ click rate on calendar link
• Overall: 2-3% conversion to Scale Audit consultation

A/B Testing:

• Subject lines (technical vs. benefit-focused)
• CTA placement (top vs. bottom)
• Case study details (technical depth vs. business impact)