Logan BiesterfeldtLogan Biesterfeldt

Portfolio

Logan Biesterfeldt

Design Engineer · Frontend Lead

Figma to production: design systems, React, TypeScript, blockchain

Open to opportunitiesOpen to relocation · Remote-friendly
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01About

About me

I work at the intersection of design and engineering, owning product problems from Figma to production code without handing off between the two.

My background is DeFi and blockchain infrastructure, which means I bring technical depth to domains most product designers approach from the outside. At Neptune Finance I built the design function from scratch: custom Figma component library, full design system, and every line of production TypeScript and Tailwind, while maintaining the engineering rigour required for live financial systems where on-chain state, wallet behaviour, and transaction reliability are non-negotiable.

I use AI tools (Cursor, Claude, and agentic workflows) as a core part of how I prototype and ship. I've directed fully agentic engineering flows, maintaining product and design ownership while accelerating implementation significantly.

02Work

Selected systems

Case studies & shipping scope

03Experience

Experience

Representative roles, protocol work, and projects. Scroll down to browse individual case studies.

Scroll to start browsing↓

Professional Experience

Design Engineer / Frontend Lead

Neptune Finance

Design Engineer / Frontend Lead. Full product ownership from Figma to production

  • React
  • TypeScript
  • Next.js
  • CosmWasm
  • Injective
  • Wallet interactions
  • Transaction reliability
  • Astroport integration
  • Mito integration
  • State synchronization

Protocol / Ecosystem

Technical Content Creator

stakefish / f2pool

  • Protocol education
  • Validator workflows
  • Staking operations
  • Cross-chain documentation

Professional Experience

Contributor / Design Engineer

Open Source Contributions

  • TypeScript
  • React
  • CW3 Multisig
  • Injective SDK
  • Caching
  • Transaction pipeline

Professional Experience

Frontend / Component Lead

Cryptech Developments Ltd.

  • TypeScript
  • React
  • Next.js
  • Tailwind CSS
  • Frontend architecture
  • Component systems

Protocol / Ecosystem

Co-founder & Frontend Lead

All About Blockchain

  • TypeScript
  • React
  • Next.js
  • Figma
  • Tailwind
  • Vercel
  • Cosmos
  • Injective

Protocol / Ecosystem

Design Engineer / Frontend Lead

Cosmoverse 2023 / Hackathons

  • React
  • TypeScript
  • Cross-chain flows
  • Wallet interactions
  • Protocol integrations

Projects

Design Engineer / Frontend Lead

Satsuma

Hackathon

Design Engineer / Frontend Lead. Cross-chain yield-to-Bitcoin conversion routing built at Cosmoverse Hackathon

  • React
  • TypeScript
  • Injective
  • Astroport
  • Axelar GMP
  • ICP Canisters
  • Cross-chain flows
  • Multi-wallet connection
  • Agentic workflows

Projects

Freelance Web Engineer

Personal Projects

  • TypeScript
  • React
  • Next.js
  • Tailwind CSS
  • Vercel

Projects

Frontend Developer

Dyve

Hackathon

Frontend Developer. Built the NFTFi lending, borrowing, and shorting interface

  • Next.js
  • TypeScript
  • Tailwind CSS
  • Ethers.js
  • Web3React
  • Solidity
  • NFTPort
  • Covalent
  • IPFS

Projects

Design Engineer / Agent Orchestrator

CrAIdle

Hackathon

Design Engineer / Agent Orchestrator. Directed autonomous agentic engineering flow

  • Next.js
  • TypeScript
  • Tailwind CSS
  • OpenClaw
  • MiniMax
  • Solidity
  • Base Sepolia
  • Ethers.js
  • Lido stETH
  • Agentic workflows

Projects

Frontend Developer / Designer

Monad Heartbeat

Demo

Frontend Developer / Designer. Built a real-time 3D node and transaction visualizer

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • WebSockets
  • Ethers.js
  • 3D CSS/Animations
  • RPC Nodes

Projects

Frontend Developer

ether.fi Cash Demo

Demo

Frontend Developer. Developed a high-fidelity interactive DeFi credit card dashboard

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Radix UI
  • TanStack Query
  • 3D CSS/Animations

04Stack

Stack

Tools and domains I work across most often.

Frontend Systems

React · TypeScript · Next.js · Tailwind CSS · Component architecture

AI-Assisted Development

Cursor · Claude · Agentic engineering flows · Figma AI · Local model experimentation

AI tools are a core part of how I prototype and ship, from directing agentic implementation flows to integrating AI into design iteration and code review.

On-Chain Integration

CosmWasm contracts · Injective SDK · Wallet interactions · Transaction flows · Contract interface alignment

Data and Performance

State synchronization · RPC/indexer aggregation · Caching · Render optimization · Reliability patterns

Delivery

Technical scoping · Cross-functional execution · Design system implementation · Production deployment

05Contact

Let's talk

Looking for a design engineer who can own the path from Figma to production? I'm open to new opportunities and quick to reply.

Email meDownload résumé

Social

Résumé

© 2026 Logan Biesterfeldt

Designed & engineered by Logan · Built with Next.js & Tailwind CSS