Dan Wallace

Engineering and developer advocacy experience

1. First Ledger LLC

   2025–2026

   Senior Full Stack Engineer

   I implemented the full First Ledger v2 redesign in Next.js and Tailwind, working with a UI designer to bring the Figma designs into production. I also built indexers and APIs for First Ledger and Joey Wallet, and shipped creator rewards and boosted APY features across the application and its services.

2. Ripple

   2022–2025

   Senior Developer Advocate

   I developed tutorials, sample code and workshops from internal specifications and undocumented engineering details. I mentored developers, assessed projects for XRPL Grants and the XRPL Accelerator, and contributed hands-on Solidity engineering through RLUSD Guardian.

   I worked with developers and founders from their first hackathon prototypes through technical reviews and funding applications. I also conducted technical reviews of multimillion-dollar business development deals and private funding agreements.

3. PancakeSwap

   2021–2022

   Full Stack Engineer

   I worked across React applications, Solidity contracts and The Graph subgraphs, including development and testing of MasterChef contracts. I also handled developer and community questions as one of the project’s public-facing engineers.

Speaking and developer education

I’ve spoken at the University of Waterloo, Carnegie Mellon University, Cornell University and UC Berkeley. At Waterloo, I delivered a three-hour workshop on Solidity, Foundry and XRPL EVM development. At Carnegie Mellon, I spoke and helped deliver an XRPL hackathon.

At Cornell’s 2024 payments hackathon, I served as a keynote speaker, workshop host and judge. I also helped host and spoke at UC Berkeley’s XRPL hackathon, where I was listed among the judges and mentors. At ETHDenver in 2025, I ran the RLUSD track.

I helped plan four annual Apex developer conferences and organized XRPL meetups in Buenos Aires, Tokyo, Seoul, New York City, São Paulo, Amsterdam and Nicosia. That work included developer recruitment, regional partnerships, technical demonstrations and conversations with founders building on the platform.

RLUSD Guardian

I developed RLUSD Guardian, an OpenZeppelin-audited Solidity contract that lets approved institutional market-makers exchange RLUSD and USDC at a fixed 1:1 dollar value. I implemented reserve management, access controls and token decimal conversion, wrote Foundry unit and fuzz tests, and addressed audit findings through documented pull requests. I also contributed to RLUSD’s EVM deployment.

Funding programs and technical review

At Ripple, I assessed technical proposals and performed due diligence for grants and accelerators, including checks for scams and grant farming. I also served as a technical reviewer for an accelerator focused on financial AI agents.

I proposed and helped implement retroactive developer funding with XRPL Commons and helped the team launch a separate grants program. Through hackathons, I met early teams including xrp.cafe and First Ledger and helped their founders navigate funding opportunities.

Applied AI and independent engineering

I fine-tune Qwen2.5-Coder models for XRP Ledger development, with training runs on Apple Silicon and RunPod. I build the datasets and evaluations, compare checkpoints, and test generated code for incorrect SDK calls, transaction behavior and invented APIs. I’ve also built a local AI research assistant with an iPhone interface, Mac-based tools and checks on generated answers.

For a freelance Carolina Panthers stadium project, I built the intake software, backend and NFC integration for a personalized 360° projection experience. I connected fan profiles and NFC cards to the installation’s Resolume Arena and TouchDesigner workflow, adapted the software to client requirements and supported onsite setup.

With Brickpilot, I’ve built vehicle telemetry, voice bookmarks, route replay and manual review tools for supervised driver-assistance research based on openpilot and sunnypilot. The project combines on-device software with data ingestion, analysis and a local review interface.

Project case studies

• Carolina Panthers Fan Experience
• Brickpilot
• XRPL Coding Models
• RLUSD Guardian
• Local AI Assistant