JEFFREY COLEMAN
SR. SOFTWARE ENGINEER · AI & BLOCKCHAIN · SYSTEMS ARCHITECT

25+ years engineering production systems where failure isn't an option — defense ISR, aerospace, blockchain infrastructure, and enterprise AI. Founder of Koba42. Based in Delaware, USA.

Available for select engagements
Get In Touch View Work
Scroll
Recognition
Dragons' Den Alumni
CBC · National Television
25+
Years of Production Experience
5+
Blockchains Deployed to Production
1
Chia Cultivation Grant Awarded
1,000+
Projects Delivered
35+
Countries Where Systems Run
4
Continents Keynoted
About
BUILDING SYSTEMS
WHERE FAILURE
ISN'T AN OPTION.

Over 25 years I've shipped production systems across industries where downtime means mission failure — defense ISR platforms, aerospace navigation, national-scale telecom infrastructure, and distributed blockchain protocols. From an M.Sc. in Computer Science to Dragons' Den to keynotes on four continents, every engagement has been about solving problems that matter.

Today I run Koba42, a boutique technology studio specializing in AI-integrated platforms and blockchain infrastructure. I take on select engagements where the problem is real, the stakes are high, and the team is ready to build something exceptional.

Start a Conversation
M.Sc. Computer Science
Graduate Degree
CBC Dragons' Den — Contributing Team Member
National Television · Branding & Early Product
Chia Cultivation Grant
Awarded on merit of team, product, and ecosystem contribution
CSIS Secret-Level Clearance
Canadian Security Intelligence Service · Verified
Apple #1 National Sales Record
57 Consecutive Weeks · All Canadian Locations
FIFA World Cup Deployment
Qatar 2022 · Mission-Critical Systems
Award-Winning Technology Inventor
International Recognition
Keynote Speaker · 4 Continents · 35+ Countries
Blockchain, AI & Distributed Systems
Career

WORK
HISTORY

Koba42 Corp
2023 — Present
Founder / Systems Architect & Sr. Software Engineer
  • Creator of TangTalk and RawKit_L2 — novel distributed systems and communication protocols that delivered record revenue in their opening weeks of launch.
  • Recipient of the Chia Cultivation Grant — awarded on the merits of the team, product, and its perceived contribution to the Chia ecosystem.
  • Built Arcade21.games — a peer-to-peer blockchain gaming platform with zero rake, built on Chialisp state channels.
  • Delivered advanced AI and blockchain platforms to clients across healthcare, aerospace, industrial, and emerging technology sectors.
  • Delivered keynote talks across Europe, the USA, Canada, and the UAE as a recognized thought leader in blockchain and distributed systems.
  • Recognized as an award-winning technology inventor.
CarteNav
2020 — 2023
Software Engineer II & Chief Dispatch · ISR / Defense / Search & Rescue
  • Contributed to command and control systems for ISR operations, UAV fleet management, naval deployments, search & rescue, and law enforcement.
  • Held secret-level security clearance vetted by the Canadian Security Intelligence Service (CSIS).
  • Contributed to software deployed at the FIFA World Cup 2022 in Qatar — mission-critical, zero margin for error.
  • Improved system performance, reliability, and operator workflows across all mission environments.
  • Led the hiring and creation of development teams to expand global operations into the UAE and other strategic international locations.
Rytek Digital Inc.
2014 — 2022
Developer II / Creative Lead
  • Built production-ready web and mobile systems for Bell Canada, Tourism Nova Scotia, McCain, Sobeys, Ultramar, and other major brands.
  • Designed scalable architectures for high-traffic business applications across multiple industry verticals.
  • Led technical planning, sprint execution, and feature delivery across simultaneous product lines.
  • Worked directly with founders and C-suite stakeholders to define product roadmaps and technology strategy.
  • Mentored junior developers and produced clean, maintainable codebases built to scale.
Apple Canada
Corporate Tenure
Corporate Solutions Consultant
  • Launched the largest Apple installation in North America.
  • Held the top national sales record for fifty-seven consecutive weeks across all Canadian Apple retail locations.
  • Trained directly under Apple leadership at Apple headquarters in Cupertino, California.
  • Designed and implemented a national cross-retail integration program deployed across Canada.
NADP Racing
Early Career
Marketing Director
  • Managed digital strategy, sponsorship acquisition, and media production for an international drag racing team.
  • Improved brand visibility, partner engagement, and key performance metrics across digital and physical marketing channels.
Portfolio

SHIPPED
PRODUCTS

TangTalk Wireless
01
01 Blockchain · Communications
TangTalk Wireless
50K revenue — week one  ·  Chia Cultivation Grant recipient

Multichain communication protocol enabling trustless, encrypted messaging across blockchain networks. Designed protocol architecture from zero, shipped to production, and secured a Chia Network grant.

Chia Network Blockchain Protocol Design Real-Time Messaging
Arcade21
02
02 Blockchain · Gaming
Arcade21.games
Zero-rake  ·  Trustless state channels  ·  Provably fair outcomes

Peer-to-peer blockchain gaming platform built on Chialisp state channels. Trustless game logic with on-chain settlement — no house edge, no custodian, no rake.

Chialisp State Channels P2P Gaming Zero Rake
Dracattus
03
03 AI · Platform
Dracattus
Healthcare  ·  Industrial  ·  Enterprise AI verticals

Production-grade AI platform architecture spanning healthcare, industrial automation, and enterprise technology. Engineered for reliability at scale — built to run where failure is not an option.

AI Integration Enterprise Systems Architecture Laravel
Bell Canada
04
04 Telecom · Enterprise
Bell Canada
National scale  ·  Zero downtime SLA  ·  Real-time network viz

Real-time network visualization and management platform deployed nationally for one of Canada's largest telecoms, via Mariner Partners. High-availability infrastructure with hard uptime guarantees.

Telecom Real-Time Viz National Scale High Availability
Masitek
05
05 Industrial · IoT
Masitek
Mission-critical  ·  24/7 uptime  ·  Hardware-to-enterprise pipeline

Industrial-grade sensor and monitoring platform for high-stakes physical environments. Engineered data pipelines connecting hardware telemetry directly to enterprise decision systems in real time.

IoT Industrial Telemetry Mission Critical
ISR COMMAND
& CONTROL
06
06 Defense · ISR
CarteNav ISR Platform
FIFA World Cup 2022  ·  CSIS secret clearance  ·  UAV fleet C2

Command and control software for ISR operations, UAV fleet management, naval deployments, and search & rescue. Deployed operationally at the FIFA World Cup 2022 in Qatar.

Defense ISR UAV C2 Systems FIFA 2022
RAWKIT L2
&
CRATE.INK
07
07 Blockchain · Infrastructure
RawKit L2 & Crate.ink
Layer 2 protocol  ·  NFT provenance  ·  Chia ecosystem

Layer 2 blockchain infrastructure and NFT platform built on Chia Network. Novel protocol design enabling fast, low-cost settlement with on-chain provenance guarantees for digital assets.

Layer 2 NFT Chia Network Protocol
APPLE CANADA · BELL CANADA · CARTENV DEFENSE · CHIA NETWORK · FIFA WORLD CUP · TOURISM NOVA SCOTIA · MCCAIN FOODS · SOBEYS
Recognition

PROVEN
TRACK RECORD

01
Dragons' Den Alumni
Contributing team member on branding and early product development for a CBC Dragons' Den appearance — national television exposure reaching millions of Canadians across one of the country's most-watched business programs.
02
Chia Cultivation Grant
Awarded a Chia Cultivation Grant by the Chia Network — granted on the merits of the team, the product vision, and TangTalk's perceived contribution to the Chia ecosystem. A competitive, merit-based selection.
03
CSIS Secret-Level Clearance
Held secret-level security clearance vetted by the Canadian Security Intelligence Service — enabling work on classified defense, ISR, and national security systems where the cost of error is never acceptable.
04
Apple #1 National Sales Record
Achieved the #1 national sales record across all Canadian Apple retail locations for fifty-seven consecutive weeks. Trained directly under Apple leadership at the Cupertino campus. Launched the largest Apple installation in North America.
05
FIFA World Cup Deployment
Contributed to mission-critical software deployed at the FIFA World Cup 2022 in Qatar through CarteNav — one of the highest-profile, highest-stakes technology deployments in international sport.
06
Award-Winning Technology Inventor
Recognized internationally as an award-winning technology inventor. Work spanning novel blockchain protocols, distributed communication systems, and AI-integrated platforms has earned recognition across industry and innovation forums.
Stack

TECHNOLOGY
EXPERTISE

Languages
PHP Python JavaScript TypeScript Chialisp Solidity SQL Bash
Frameworks
Laravel React Next.js Vue.js Node.js FastAPI Livewire Tailwind CSS
Blockchain
Chia Network Ethereum Bitcoin Polygon Solana State Channels Smart Contracts DeFi Protocols
AI & Data
OpenAI API Claude API LangChain RAG Pipelines Vector DBs PostgreSQL Redis Elasticsearch
Infrastructure
Docker Kubernetes AWS GCP Linux Nginx Traefik CI/CD Cloudflare
Speaking

GLOBAL
PLATFORM

🇪🇺
Europe
Blockchain infrastructure, decentralized systems, and the future of trustless communication — delivered to technical and enterprise audiences across multiple European markets.
🇺🇸
United States
AI integration in enterprise systems, mission-critical software architecture, and the realities of building blockchain products that reach production.
🇨🇦
Canada
Deep technical sessions and keynotes on distributed systems, blockchain protocol design, and building software in regulated, high-stakes environments.
🇦🇪
UAE & Gulf
Emerging technology leadership, blockchain adoption at enterprise scale, and the intersection of defense-grade engineering principles with commercial innovation.
Testimonials

WHAT PEOPLE
SAY

"
“Jeffrey delivered a Bluetooth Low Energy monitoring system for our manufacturing floor that I genuinely did not think was achievable on the timeline given. Real-time sensor telemetry from dozens of BLE endpoints, aggregated, normalized, and fed into our plant reporting stack with zero data loss tolerance. The system has run continuously without a critical incident since deployment. That reliability is not an accident — that is the product of serious engineering discipline.”
Engineering Lead, Masitek
Industrial IoT · BLE Sensor Infrastructure · Manufacturing
“We engaged Jeffrey to audit and restructure our AI integration layer. What I expected was a technical report. What I got was a complete rethinking of how our organization should be using AI operationally — agent architecture, data pipeline design, cost governance, failure mode planning. He doesn’t just implement. He forces you to think clearly about what you’re actually building and why. That quality of thinking is rare in any consultant, and nearly nonexistent in the AI space right now.”
Travis MacDonald
AI Strategy & Enterprise Consulting
"We brought Jeffrey in to untangle a critical network visualization system that had been stalled for months. Within weeks the system was performing. Within a quarter it was a competitive differentiator. His ability to move at scale without sacrificing precision is the rarest engineering quality I've encountered in twenty years of enterprise technology."
Enterprise Technology Director
Major Canadian Telecommunications Provider
1 / 3
Writing

PERSPECTIVES
FROM THE FIELD

CAREER · OPEN SOURCE
Stop Romanticizing Starvation: Open Source Is a Gift, Not a Business Model

Why early-career developers should build revenue first, then give back bigger, better, and longer. The open-source gospel has a blind spot — and it costs real people real money.

Apr 2026 Read on Medium →
AI · SECURITY
Your AI Agent Is a Security Nightmare. Here’s How to Fix It.

I run 5 autonomous AI agents on my own infrastructure — reading files, executing code, deploying containers. That makes them a massive attack surface. A breakdown of the threat model and the architecture to defend against it.

Feb 2026 Read on Medium →
SOFTWARE · INDUSTRY
Clean Rooms, Leaks, and the Quiet Shift from SaaS to Software Sovereignty

The cost of recreating software capability is dropping fast. When that happens, the old SaaS deal — rent the tool forever — stops looking inevitable. What this moment is really about: control, capability, and who gets to build what next.

Apr 2026 Read on Medium →
Case Studies

DEEP
DIVES

01
BLOCKCHAIN · GAMING
The House Always Wins. Until Now.
For as long as online gaming has existed, a silent third player took their cut regardless of outcome. The infrastructure now exists to remove them entirely. A technical breakdown of how Arcade21 eliminates the house edge using Chialisp state channels — trustless wagers, provably fair outcomes, zero rake.
Read on Medium →
02
BLOCKCHAIN · COMMUNICATIONS
Building the Future of Decentralized Mobile on Chia: AI Agents, NFT Markets, Gaming and Cross-Chain Communication
TangTalk started as a cross-chain messaging experiment and became a platform — a decentralized phone running across Chia, Ethereum, Bitcoin, and Base. The moment when the pieces stopped being separate experiments and became infrastructure. Architecture, design decisions, and what comes next.
Read on Medium →
03
AI · INFRASTRUCTURE
I Vibe Coded a Full Self-Hosted AI Stack Installer. Then I Gave It Away.
Every new machine meant the same tedious setup: Docker, Coolify, Gitea, Grafana, Prometheus, YAML already written a dozen times. The solution was to automate it once and release it. How a personal productivity frustration became an open-source tool for builders at the intersection of AI and blockchain.
Read on Medium →

READY TO BUILD?

I take on select engagements where the problem is real and the stakes are high.

Get In Touch View Koba42 ↗

LET'S
TALK.

I work with a select group of clients on problems that demand genuine engineering depth. If the challenge is real and the stakes are high, reach out.

Email [email protected] ↗ Website koba42.com ↗ LinkedIn linkedin.com/in/dracattus ↗
Location Delaware, USA ↗