John Simpson
Open to Product Management, Sales Engineering & Solutions Architect positions

John Simpson

Product Manager & Sales Engineer | Payments, Fintech & AI

With over 20 years of experience spanning Sales Engineering and Product Management positions, I am currently open to new opportunities in either Product Management or Sales Engineering roles. The prototypes and demonstrations below show how I apply AI in both. For the full picture of my career achievements, experience, working style, and recommendations, my LinkedIn profile is just a click away at the bottom of this page.

Philosophy
My Approach

The focus of this site is to highlight AI-assisted prototypes and demonstrations that I have built using primarily Claude Code CLI or my hosted LLM environment.

You may be asking "Why the focus on AI, and how does it relate to Product Management or Sales Engineer roles?"

My answer is multi-faceted:

  • I strongly believe that AI is the future, and that future is now. One must remain up-to-date on everything related to AI, or risk falling behind the learning curve.
  • AI is transforming how Product Managers and Sales Engineers work.

    As an example, in 2019, would a Product Manager be able to create a functional prototype (or ready-for-production application) in a matter of hours? Or complex Product Requirements Documents in a matter of hours? Likely not.

    The same holds true for a Sales Engineer (SE) or Solutions Architect (SA) role. An example that I frequently encountered as a Sales Engineer: A prospect would like a one-day onsite deep dive whiteboard session to walk through a complex API integration. As an SE I would spend many days preparing for the walkthrough and creating demonstration materials.

    However, with the assistance of AI, the SE/SA now has the ability to build an interactive walkthrough of complex API/integration scenarios in a matter of hours, instead of days. It could be tailored to the prospect's requirements, and built using the same programming language of the prospect. With the end goal of effectively demonstrating live API calls while simultaneously speaking through the details of each step.

    Overall, the benefits to daily productivity and creativity that AI brings to either role only touch the surface of what is possible.

My approach to AI-assisted prototyping is to provide detailed requirements via .MD file, breaking the work into phases rather than a singular approach. I have found this method to be effective, especially when combined with Anthropic-built skills, or open-source skills available in Github.

The common theme in either role is that AI is a game changer in terms of:

  • Translating complexity into simplicity, whether that is in the form of product requirements for engineering teams as a Product Manager, or demonstrating complex topics to prospective clients as an SE/SA.

With the end goal being:

  • As a Product Manager, utilizing the benefits provided by AI to quickly and efficiently launch a successful revenue-producing product.
  • As an SE/SA, utilizing the benefits provided by AI to create effective job aids, leading to increased conversion rates from prospect to actual revenue-generating client for the organization.
Portfolio
Prototypes & Demonstrations

The following prototypes represent various real-world use cases that a Product Manager may encounter, customized interactive demonstrations that would apply to a SE/SA position, and creative interactive demos based on concepts such as autonomous purchasing agents with human oversight. I will continue to add to this collection as I progress through emerging AI technology and use cases, such as those listed here.

★ Featured Project
InterchangeIQ
Six interactive tools for interchange fee optimization: transaction validation, downgrade simulation, routing comparison, CEDP readiness checking, rate lookup, and agentic commerce risk analysis.
Interchange Visa / Mastercard Optimization Live Demo
Live Demo →
Agent Trust Dashboard
Real-time command center for monitoring, governing, and intervening in autonomous AI purchasing agents. Features live activity feeds, decision audit trails, anomaly detection, and per-agent kill switches.
AI Agents Governance Live Demo
Live Demo →
Nuvei US Payment Rails Explorer
Interactive product demo exploring US bank-based payment rails (ACH, RTP, FedNow) across Gaming, Prediction Market, and Crypto verticals with animated transaction lifecycle simulation.
ACH / RTP / FedNow Payments Live Demo
Live Demo →
Stripe Commerce Explorer
Three interactive simulations showcasing how Stripe's checkout, identity, and fraud products work together to power modern commerce.
Stripe Payments Live Demo
Live Demo →
FundraiseAI
Portfolio-level AI optimization with Monte Carlo scenario simulation for capital campaign planning.
AI / LLM Monte Carlo Live Demo
Live Demo →
Transaction Data Analyzer
Python CLI tool for analyzing payment transaction data including auth rates, declines, chargebacks, and volume metrics.
Python CLI Analytics
View Code →
AI-Powered PRD Generator
CLI tool that generates structured PRDs from feature ideas using Anthropic Claude or local Ollama models.
Claude API Ollama CLI
View Code →
Automated Report Engine
Configuration-driven Python tool for generating and distributing automated HTML/PDF reports from multiple data sources.
Python Automation PDF
View Code →
Social Media Lead Monitor
AI-assisted lead generation tool that monitors social media for high-intent sales signals and sends real-time Discord alerts.
AI Lead Gen Discord
View Code →
Fintech Buzzword Bingo
A tongue-in-cheek Python tool that analyzes earnings calls and corporate communications for buzzword density.
Python NLP Satire
View Code →
Connect
Let's build something together.

Whether you have a role in mind, a product challenge, or just want to connect, I'd love to hear from you.