Hi, I'm

David Lebee

Head of Engineering & Chief Software Architect at Gluwa. A systems architect at heart: blockchain protocols, privacy networks, distributed systems — and the teams that build them.

Emaildavid@lebee.info
Based inBoca Raton, Florida
LinkedInin/davidlebee
GitHub@dlebee
Medium@dsylebee

About

I've been programming since 2007 — 19 years now. I like working below the abstraction layer: understanding how distributed systems actually behave across networking, consensus, state, infrastructure and failure boundaries, then turning that into production systems.

My work spans blockchain infrastructure, protocol design and backend engineering — Layer 1 and Layer 2 architecture, EVM and Polkadot SDK / Substrate, consensus and finality, validator and RPC infrastructure, and protocol economics. I'm most interested where abstractions start leaking: concurrency, distributed state, consensus edge cases, network transport, and the gap between how a protocol is described and how it behaves in production.

As a leader I stay close to the systems: mentoring engineers, reviewing architecture, challenging assumptions, debugging across layers, and helping teams turn ambitious protocol ideas into incremental, operable software. I lean heavily on AI and agent-based workflows — spinning up ephemeral test networks, analyzing logs and artifacts, and building CI that catches integration problems before production.

Distributed systems
Protocol design
Cross-chain interoperability
Privacy networking
Distributed oracles
Zero-knowledge
Consensus & finality
AI-assisted engineering

Open to collaborating on ambitious projects in distributed systems, blockchain protocols, networking, privacy, oracles, cryptography, interoperability or high-performance infrastructure — get in touch.

Now

Cross-chain

Attestcoin Protocol

Cross-chain messaging, state verification, relayers, attestation models and finality assumptions across heterogeneous networks.

Privacy network · Rust & Go

Space Router Onion

Core network developer. QUIC transport, multi-hop circuit routing, relay and exit nodes, connection isolation, bandwidth and QoS metering, and interoperability between independent implementations.

Oracles

Reputation oracles

Distributed oracle systems where decentralized data acquisition, attestation, reputation and cross-chain verification meet Space Router Onion.

Exploring

Zero-knowledge & cryptography

Groth16, PLONK, STARKs, recursive proofs, fraud proofs, data availability — and making them practical for real infrastructure.

Projects Creditcoin Space Router Spacecoin Attestcoin Lumen Protocol

Work

Nov 2021 — now
Florida, US
Current

Chief Software Architect & Head of Engineering

Gluwa Inc. · Creditcoin · Space Router · Spacecoin

2024 — now Head of Engineering & protocol work

Building the Attestcoin cross-chain protocol: messaging, state verification, relayers and attestation models.
Core network developer on Space Router Onion, a privacy network for DePIN, in Rust and Go — QUIC transport, multi-hop circuits, decentralized node discovery and on-chain staking.
Designing settlement layers and reputation oracles for DePIN projects, including Spacecoin.
Shifted focus from architecture to engineering leadership; appointed a manager for the Creditcoin research team and built a new protocol team.
Scaled the engineering org and personally ran hiring to keep the bar and the fit high.
Designed Credit Wallet, the new Creditcoin wallet, on microservice APIs for scale and usability.
Worked with company leadership to align engineering with the company's vision, and kept cross-team delivery on time.

2023 Chief Software Architect & Head of Engineering

The dynamic currency architecture let Gluwa ship investment products on Ethereum mainnet and BNB Smart Chain with no chain-specific code.
Extended the Ethereum Relayer to support future-dated, proof-based transaction submission.
Brought Substrate-based chains into the Gluwa API with a dedicated Node.js relayer, connected to .NET over Azure Service Bus topics and subscriptions.
Took over leadership of the Creditcoin research team, clarifying requirements and making the research transparent and usable — which led to the Head of Engineering role over all teams.

2022 Lead Software Architect & DevOps

Assessed the Gluwa API end to end and wrote the re-architecture plan.
Rebuilt Azure security permissions around AAD groups per development squad.
Moved the API from a static currency model to a dynamic one: currencies on top of networks that know their chain type (Bitcoin vs. Ethereum, etc.). Replaced shared projects with proper class libraries and added gas and fee-estimation services.

2021 Lead Software Architect

Brought in to scale the Gluwa API and connect it to EVM-compatible chains.
Built the Ethereum Relayer, an API for executing Ethereum transactions seamlessly.
Led the DevOps team from manual deployments to Infrastructure as Code.
Helped deploy the Creditcoin blockchain, with centralized load balancers in front of decentralized RPC nodes.

Jan 2015 — Aug 2026
Laval, Québec

Director, Analyst & Lead Software Developer

Powered Softwares Inc. · formerly LEBEE INFO INC.

Started in 2015 as a one-person consulting firm, LEBEE INFO INC.; rebranded as Powered Softwares in 2018 with a team of developers I recruited. Every project we took on, we delivered.

Marketucan Technologies

Platform support and terminal-security certification changes
Planning and onboarding for new clients
Mobile apps for gift card enrollment and online purchases
Global Payments online-processing integration, before a C# SDK existed

Roxboro Excavation

A full ERP: suppliers, employees, mailing lists, purchase orders
Truck weigh-sheet manager using OCR (Microsoft, Google, Fujitsu)
Employee hours and a custom payroll system for construction
Garage repair tracking, plus a mobile app for on-the-road repairs
Truck and equipment tracking

MTY Group

Rebranded their acquired point-of-sale system
Updated the POS credit card integration and certificate with Moneris
Reporting engine aggregating sales from 4,000 restaurants across Canada into one data warehouse
BI bridges for the POS with Deloitte; custom gift-card aging audit reports

La vie est belle — restaurant co-op

Fully manageable food-ordering platform and mobile-friendly ordering site
Merchant app to receive, accept and refund orders in store
Global Payments integration with saved cards for returning customers
Multi-location support and accounting exports

École de conduite Routec 132

Driving-school platform meeting AQTr requirements
Employees, students, programs, and contracts with digital signing
Online payment, course certificates, AQTr reports and online exams

Thygeson mobile app

An app supporting research toward better treatment for Thygeson's disease
Drug databases for Canada and the USA; drop-intake and flare-up tracking
Statistics plus personal and family census

Mar 2013 — May 2014
Laval, Québec

Analyst & Lead Software Developer

Marketucan Technologies Inc.

Built a gift and loyalty software-as-a-service from scratch.

Gathered requirements, assembled the team and trained interns; led development and set the project structure.
Built an automated billing system.
Certified Electronic Funds Transfer with TD Bank, and Ingenico third-party application certification in Toronto.
Payment certifications with Desjardins, Accéo Solutions, Moneris and Chase.

Sep 2009 — Mar 2013
Laval, Québec

Lead Software Developer

Logicaisse

Started as a junior developer on the point-of-sale team.
Quality assistant developer during the POS certification with Revenu Québec.
Created the company's first web product, letting restaurant clients monitor sales online — and letting its largest client, MTY Group, audit franchise sales quickly.

Writing & teaching

Learning materialLive

Interactive Blockchain Learning

Interactive, visual tools I built for understanding blockchain and distributed-systems concepts — transactions, nodes, consensus and wallets, explored hands-on instead of read about.

interactive-blockchain-learning.vercel.app →

All articles on Medium →