Katie Kirby

Available to hire

Senior Web3 full-stack engineer with 7+ years of production experience building blockchain-powered applications, dashboards, and integrations across Ethereum and Solana.

About

Senior Web3 full-stack engineer with 7+ years of production experience building blockchain-powered applications, dashboards, and integrations across Ethereum and Solana. I specialize in shipping user-facing dApps, wallet integrations, NFT platforms, and custom Web3 tooling — from frontend UX to smart contracts and backend services.

Previously worked with enterprise and startup teams to deliver secure, scalable blockchain products used by real users. Available for short-term builds, integrations, and targeted Web3 development work.

  • 2 years' experience
  • Joined July 2024

Industry experience

  • Computers & Electronics
  • Financial Services
  • Software & Internet
  • Education
  • Media & Entertainment
  • Gaming
  • Professional Services

Work experience

Custom Smart Contract Development · CopicatJun 2025 – Present · 1 yr 6 mos

Designed and deployed smart contracts for NFT issuance and asset tracking, with frontend integrations for user interaction and admin tooling.

Web3 NFT Platform & Wallet Integration · CopicatJan 2025 – Present · 1 yr 11 mos

Built a full-stack Web3 application with wallet authentication, NFT minting, and dashboard views using React, Solidity, and Ethereum/Solana integrations. Focused on clean UX and secure transaction handling.

Blockchain Security & Backend Engineer (Consultant) · American ExpressFeb 2024 – Present · 2 yrs 10 mos

Designed and operated production blockchain transaction systems supporting high-volume asset issuance, with emphasis on transaction correctness, confirmation reliability, and post-execution verification. Built and maintained event-driven pipelines (webhooks, queues) to track transaction state changes and ensure accurate lifecycle handling across asynchronous systems. Integrated Fireblocks MPC custody and transaction authorization policies, collaborating on secure transaction submission and monitoring. Implemented batching and queueing strategies to optimize throughput, latency, and cost efficiency under load. Supported system reliability through upgrades by validating state assumptions, enforcing invariant checks, and improving observability around execution outcomes. Contributed to early initiatives addressing observability gaps and emerging agentic AI risks, focusing on traceability and verifiable execution paths.

Education

BA · Columbia College Chicago2004 – 2026

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