Aaron Jones

I'm an engineer focused on payments infrastructure — building systems that move money faster, cheaper, and more securely. I've shipped production code at Discover Financial Services and Capital One, scaling card tokenization systems over 50x and integrating legacy systems into modern cloud microservices.

I'm also deep into Bitcoin and privacy tech — from Lightning Network implementations to censorship-resistant protocols. Whether it's traditional finance or the future of open money, I bring the same rigor: secure systems, clean APIs, and infrastructure that scales.

• Modernized Digital Payments backend services from legacy monolith to cloud microservices
• Integrated Capital One workloads into Discover's Digital Payments Network
• Scaled Spring APIs from 0.5 to 15+ TPS to handle increased transaction volume

• Led design and creation of compliance-focused API, enhancing efficiency
• Developed front-end components in React.js for seamless UX
• Advocated best practices in API design and testing, elevating team standards

• Enhanced RPC server for cryptocurrency transaction signing with high security
• Automated cold-storage workflows, reducing manual errors
• Modernized deposit and withdrawal system, improving transaction processing speed

• Participated in software design decisions, modernizing legacy systems
• Maintained sensitive financial applications, adhering to regulatory standards