Hi, I'm Thomas 👋
Hands-on CTO & Blockchain Architect for Web3 and Fintech Infrastructure. I turn complex blockchain ideas into production-grade systems: smart contracts, wallets, stablecoins, data pipelines, cloud infrastructure, and the engineering teams that ship them.
TW

Based in Vienna. Currently leading Permissionless while continuing CTO responsibilities at Morpher. Selectively open to CTO, VP Engineering, Head of Engineering, and technical co-founder conversations. Strongest fit: stablecoins, wallets, account abstraction, privacy, DeFi infrastructure, and fintech where smart contracts are the product. Remote-Europe and hybrid both work.

At a glance

681k
Wallets created
On the chain-agnostic web wallet I architected at Morpher Labs
2,000+
Synthetic markets served
8 data sources aggregated, sub-500ms end to end
140k+
Developers educated
VoD course · University of Rome · Fortune 500 · public sector
0
Voluntary attrition
Across 9 senior engineering hires

CTO at Morpher Labs since 2020 · Co-founder and CTO at Permissionless Inc · MSc Telematics, TU Graz

About

I'm a CTO who leads from the codebase. I set technical direction, design architecture, build engineering culture, and still write code when the hardest production problems show up.

My strongest fit is with Web3, fintech, and infrastructure teams that need someone who can connect protocol design, backend systems, DevOps, product constraints, and pragmatic team leadership. I have shipped real on-chain products at scale: wallets used by hundreds of thousands, custom L2 infrastructure, high-frequency data pipelines, and the smart contracts behind them. I have also built and run the engineering teams that operate them.

Where I'm strongest

I'm strongest where blockchain is core to the product, not a marketing layer.

Work Experience

P

Permissionless Inc

June 2024 - Present
CTO + Co-Founder

Co-founder and CTO building a permissionless stablecoin protocol. Own protocol architecture, implementation, audit coordination, technical roadmap, developer docs, and the technical side of go-to-market.

Co-founder and CTO. Building a permissionless stablecoin protocol that combines on-chain overcollateralization, yield-generating collateral strategies, and privacy-preserving compliance infrastructure.

  • Currently sole developer on the technical side: protocol, pool, compliance layer, and developer docs. Also driving strategy and marketing across upd.io, permissionless-technologies.com, and the preview.upd.io showcase app that ties every component together. Architecture is designed to scale to a real engineering team without rewriting.
  • Designing the full protocol stack: stablecoin issuance, collateral management, and a compliance-aware dual SNARK-and-STARK privacy layer.
  • Building a production-direction post-quantum STARK verification path for Ethereum L1, with BLS12-381 SNARKs on the hot path for real 128-bit security and STARKs as the post-quantum vault layer. STARK proofs verify through SP1 wrapping today, with a clean upgrade path to native STARK verification when Ethereum supports it.
  • Managing the audit process: auditor procurement, scope review, feedback loops, remediation, and follow-up iterations.
  • Currently pre-launch on Sepolia. Pre-audit.
  • Stack: Solidity, Foundry, OpenZeppelin, SP1, Circom, TypeScript, Next.js.
M

Morpher Labs GmbH

July 2020 - Present
CTO

CTO for a blockchain trading platform with ~681k accounts, 50-100k monthly actives, 2,000+ markets, a custom wallet, L2 infrastructure, and sub-500ms market-data systems. Owned engineering budget, roadmap facilitation, audits, and investor-facing product/tech updates.

Lead engineering for a blockchain-based trading platform. ~681k accounts, 50-100k monthly actives, 2,000+ synthetic markets spanning equities, commodities, crypto, forex, indices, and a set of unique custom markets.

  • Scaled engineering from 3 unstructured devs to 7 across 2 product teams (desktop and mobile). Senior ICs were promoted into team-lead roles, not replaced by outside hires.
  • Owned development budget planning for AWS, tooling, audit work, and hiring expansion. Engineering usually ran at or under budget while preserving room for planned infrastructure and headcount growth.
  • Owned technical roadmap facilitation with product, marketing, support, compliance, and engineering. We scored upcoming work by impact, difficulty, urgency, and effort so high-impact quick wins rose to the top and costly low-value items became visible before they consumed months of engineering time.
  • Managed security and product audits: auditor procurement, offer review, scope definition, feedback loops, remediation, and follow-up iterations.
  • Prepared monthly investor-facing product and technology updates covering roadmap progress, feature delivery, bugs, infrastructure, improvements, and engineering risk.
  • Architected the Morpher Wallet. It is an encrypted, double-salted keystore that acts as an RPC-intercepting signer. The wallet itself only signs; the RPC sits outside the wallet, so it is chain-agnostic by design. ~681k wallets created. Works with any EVM chain.
  • Designed and operated a custom Plasma L2 with in-house validators and 1-second block times, well before today's L2 ecosystem (Arbitrum, Optimism, Base) reached production maturity.
  • Built a high-frequency tick-data pipeline that aggregates 8 sources at 1-2k msg/s average and 10k peak. 100% retention via S3 and Athena, with <500ms latency end to end.
  • Migrated production smart contracts to upgradeable proxies. Coordinated multi-chain settlement across the in-house plasma chain, Polygon, and Base, with several hundred thousand on-chain transactions processed.
  • Led incident response twice. An AWS datacenter fire forced a redesign of redundancy and failover automation. A supply-chain attack against a dependency tightened release verification and signature procedures. Both became lasting improvements.
  • Stack: Node.js, AWS, Docker, PostgreSQL, RabbitMQ, Redis, Solidity, Foundry, Truffle, OpenZeppelin, Vue, Jira, Notion.
B

Bitcoders GmbH

August 2018 - September 2020
CTO

CTO for blockchain and fintech client work. Owned architecture, delivery, budget-aware resourcing, roadmap facilitation, and client-facing technical decisions across concurrent engagements.

Led technical strategy and delivery for a portfolio of blockchain and fintech client projects.

  • Built and ran a senior engineering team across multiple concurrent client engagements.
  • Ran the same hiring loop I later refined at Morpher. Zero voluntary attrition on engineering hires.
  • Owned roadmap facilitation, architecture, delivery, budget-aware resourcing, and client-facing technical decisions end to end.
M

Moschitz IT

February 2012 - July 2018
Senior Full-Stack Developer

Built SaaS, warehouse tracking, and bespoke cloud hosting systems from prototype to production.

Built an accounting SaaS and a warehouse tracking solution from prototype to production, plus the bespoke cloud hosting infrastructure that ran them.

  • Stack: PHP, MySQL, Galera Cluster, Linux, Java, Android

Deeper write-ups on the systems above. Problem, constraints, architecture, what I owned, outcome, and tradeoffs.

Leadership operating system

How I run engineering teams. What I have actually built, not what I believe in.

Education

G

Graz University of Technology

2003 - 2012
Master's Degree in Telematics

Telematics is about modeling, planning, implementing, operating and assessing complex hard- and software systems. Similar to Computer Science, but also covers the underlying electrotechnical layer. Specialization in Machine Learning and Signal Processing. Master's Thesis Project completed at the University of Western Australia (UWA) in Perth, focusing on Machine Learning and Natural Language Processing.

Skills

Blockchain & Protocols

Solidity
Smart Contracts
Foundry
Hardhat
Truffle
OpenZeppelin
Proxies & Upgradeability
Layer 2
Plasma
Account Abstraction (ERC-4337)
EIP-7702
Bundlers & Paymasters
Stablecoins
Wallets & Keystores
BIP39
Trezor
Ledger
ZK-SNARKs
STARKs
Circom
SP1
Privacy

Backend & Infrastructure

TypeScript
JavaScript
Node.js
Python
PHP
Java
C++
Next.js
React
Vue
TailwindCSS
PostgreSQL
MySQL
Redis
RabbitMQ
AWS
RDS
Docker
CI/CD
Browser Automation (Playwright / CDP)
Galera Cluster

AI & Data

Machine Learning
Signal Processing
RAG
LLMs
Claude Agent SDK
Whisper / TTS Pipelines
ETL Pipelines
S3 / Athena
Tick-Data Engineering

Leadership & Delivery

Technical Strategy
Engineering Budgeting
Hiring & Calibration
Roadmap Prioritization
Scrum & Forecasting
Architecture Review
Audit Management
Incident Response
Performance Management
Investor Updates
Compliance & Legal Collaboration
Developer Education
Corporate Training
KYC
Selected work

Tools, courses, and infrastructure I've built

A few public-facing projects beyond the company work above.

Ethereum Blockchain Developer Course

One of the largest Ethereum developer education platforms. Over 140,000 students learned Solidity, smart contract security, Foundry, Hardhat, and production Web3 workflows on the video course since 2016. Beyond the VoD platform, I have lectured in-person at the University of Rome, delivered Fortune 500 corporate training through the Blockchain Training Alliance, and run developer training for public-sector organizations. Public authority, mentorship at scale, and a long-term commitment to the space.

Solidity
Foundry
Hardhat
TypeScript
Next.js
React
OpenZeppelin

Autoreel: Agent-Driven Video Pipeline

A 10-stage Claude Agent SDK pipeline that produces developer-tutorial videos end to end. Word-anchored Whisper timing as the canonical clock, Remotion for compositional rendering, Playwright + CDP for screen capture, an injected EIP-1193 wallet mock with EIP-6963 announce for Web3 demos, and Claude-driven visual gates that catch broken layouts before render. Outputs 1080p long-form and 9:16 shorts from one storyboard. Built to scale Solidity tutorial production to the next cohort of learners.

Claude Agent SDK
Remotion
Playwright
Whisper.cpp
viem
TypeScript
ffmpeg

Soldebug

A Solidity transaction debugger for Foundry. Replay transactions against forked chains to produce detailed stack traces with function calls, arguments, custom errors, and revert reasons.

Rust
Foundry
Solidity
REVM
Alloy

Foundry Dashboard

A desktop application to interact with your Foundry builds. Beautifully decode transactions, manage contracts, and interact with your local node.

Foundry
Rust
TypeScript
Next.js
TailwindCSS
Shadcn UI

MkDocs Shadcn

A theme for MkDocs powered by Shadcn UI. Bring modern aesthetics and components to your static documentation sites.

MkDocs
Python
TypeScript
Shadcn UI
TailwindCSS
Contact

Let's talk

For CTO, VP Engineering, Head of Engineering, or technical co-founder conversations, email me at me [at] thomaswiesner.com or reach out on LinkedIn or Farcaster.

I'm especially interested in serious teams building blockchain infrastructure, wallets, stablecoins, privacy, DeFi, or fintech products. I read every thoughtful, relevant inbound.