Hey,
I'm James Tsetsekas
Full stack developer with 14+ years building web apps, payment systems, and Bitcoin infrastructure. Fully immersed in AI, building with it every day. Currently at Satmo architecting Lightning Network payment plugins for e-commerce. Founded the Jersey City Bitcoin Meetup and Socratic Seminar.
About Me
I'm a full stack developer with 14+ years of experience. Currently at Satmo building Bitcoin Lightning Network payment plugins for WooCommerce, Wix, and Shopify - self-custodial, non-custodial key management, the full merchant integration stack. Before that I built e-commerce platforms, food ordering systems, and internal tools at companies ranging from Fortune 500 (Novartis, Realogy) to startups.
I'm fully immersed in AI - building DynamisAI, a managed AI hosting platform, and working daily with LLMs for code generation, architecture review, and automated trading systems. My open-source work includes DTCC-inspired digital securities settlement engines on Ethereum and DAML, Bitcoin on-chain analytics tools, and a provably fair Lightning-powered gaming platform. I founded the Jersey City Bitcoin Meetup where I run monthly Socratic seminars on protocol development and Lightning infrastructure. Outside of code: skiing and self-hosting everything.
What I Do
Bitcoin & Lightning Infrastructure
I build payment systems on Bitcoin's Lightning Network. At Satmo I've shipped self-custodial payment gateway plugins for WooCommerce, Wix, and Shopify. I run Lightning nodes, work with LND/LNBits/Phoenixd, and build APIs for instant, low-fee Bitcoin transactions.
AI & Automation
Building DynamisAI, a managed AI hosting platform for businesses. I work daily with LLMs for code generation, architecture review, and automated workflows. Built production trading bots, analytics pipelines, and multi-model agent systems using Claude, Gemini, and Codex.
Full Stack Product Development
Web apps, mobile apps, SaaS platforms - I build the whole thing. React, Next.js, Node.js, TypeScript, Python, PostgreSQL, Redis. Projects span fintech settlement engines, gaming platforms, e-commerce systems, and financial analytics tools.
Community & Open Source
I founded the Jersey City Bitcoin Meetup, a monthly Socratic Seminar covering protocol development and Lightning infrastructure. I mentor developers, contribute to open-source Bitcoin and fintech projects, and believe the best way to learn is to build and share.
Skills & Certifications
Scrimba Frontend Developer Bootcamp
80+ hours of teacher-led group sessions and solo projects covering HTML, CSS, JavaScript, React, responsive design, UI design, Git, peer code review, and mentoring.
FreeCodeCamp.org Front End Libraries Developer Certification
300 hours of coursework covering how to create powerful Single Page Applications (SPAs) with React and Redux, and style them with Bootstrap and Sass.
FreeCodeCamp.org JavaScript Algorithms and Data Structures Developer Certification
300 hours of coursework covering the fundamentals of JavaScript, including variables, arrays, objects, loops, and functions, as well as object-oriented programming (OOP) and functional programming (FP).
FreeCodeCamp.org Responsive Web Design Developer Certification
300 hours of coursework covering how to make web pages that respond to different screen sizes.
JavaScript Essentials 1
This 40-hour course covers how interactive web and mobile applications are created with JavaScript. Learn to program your own applications with no prior knowledge required. This course is aligned to the JSE - Certified Entry-Level JavaScript Programmer Certification, developed in collaboration with the JS Institute.
Projects
Digital Securities Settlement Engine
Atomic Delivery vs. Payment (DvP) settlement engine for tokenized securities on Ethereum, inspired by DTCC's Project Ion. ERC-20 security tokens with compliance/KYC modules, CCP-gated settlement, role-based access control (issuer, compliance officer, transfer agent, CCP), and freeze/pause capabilities. Solidity 0.8.20, Hardhat, OpenZeppelin v5, ethers.js v6.
Bond Settlement on DAML
Multi-party bond issuance, trade matching, and atomic DvP settlement built on Canton/DAML. Models the full DTCC/NSCC/DTC clearing workflow with CCP novation, custodian banks, trade reporting, and regulatory observation. DAML's signatory/observer model enforces multi-party consent at every state change.
DynamisAI - Managed AI Hosting Platform
Managed AI hosting platform enabling businesses to deploy and configure AI agents with custom skills and automated workflows. Built with Next.js, Stripe-integrated billing, Sentry monitoring, and zero-downtime deployment pipelines. Consulting practice delivering custom AI solutions for clients.
Fintech Analytics Suite
Comprehensive Bitcoin on-chain analytics and market cycle tools: Power Law regression, Pi Cycle Top indicator, Rainbow HPR model, ML-based price prediction (Random Forest), halving cycle analysis, Bollinger Bands, monthly/yearly returns heatmaps, and more. 25+ publication-quality charts in Python using matplotlib.
Satmo - Bitcoin Lightning Payment Suite
Self-custodial Lightning Network payment gateway plugins for WooCommerce, Wix, and Shopify built on ACINQ's Phoenixd. Merchants get instant Bitcoin payments without managing channel capacity or node infrastructure. Real-time exchange rates, QR code generation, webhook-driven order fulfillment, and cross-platform plugin architecture.
Satmo B2C Mobile App
React Native/Expo mobile app for Bitcoin Lightning payments. Send and receive Bitcoin instantly, QR code scanning, Strike API integration, merchant discovery, biometric authentication, push notifications, and offline support. Beautiful dark theme UI with real-time transaction tracking.
Get in touch
Let's schedule a meeting. Feel free to reach out directly by email at [email protected].