Kelly Johnson

Embedded Systems · Firmware · Software Architecture

Decades of engineering judgment,
available when it matters most.

Expert witness testimony and fractional technology leadership for organizations that need deep embedded systems expertise — not a generalist.

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Engineering credibility built over four decades.

I am a retired Embedded Systems Engineering Director with more than 40 years of experience spanning firmware development, software architecture, and large-scale engineering team leadership. My career has taken me from writing low-level embedded code to directing global engineering organizations responsible for mission-critical systems.

I am now selectively available for expert witness engagements and fractional technology advisory work — situations where hard-won judgment and deep domain knowledge make a material difference to the outcome.

40+ Years Embedded Systems Engineering Director Firmware & Software Architecture Global Team Leadership Android & Embedded Linux IoT & Connected Devices

Expert witness services for technology disputes.

When technical disputes reach litigation, attorneys need an expert who can explain embedded systems, firmware behavior, and software architecture to judges and juries — clearly, credibly, and without hedging. I provide that expertise.

My experience spans the full arc of embedded system development: from requirements and architecture through implementation, testing, and field deployment. I understand both what engineers are supposed to do and what actually happens in practice — a distinction that often determines case outcomes.

Case Evaluation

Technical review of claims, prior art, source code, and engineering documentation. Candid, early assessment of technical merit.

Expert Reports

Clear, well-reasoned written opinions suitable for disclosure. Complex technical matters explained without sacrificing accuracy.

Deposition & Trial

Testimony that holds up under cross-examination. Experienced communicating technical concepts to non-technical audiences.

Consulting Support

Ongoing technical guidance throughout litigation. Available to review opposing expert reports and assist with discovery.

Fractional CTO and technical leadership.

Early-stage hardware and embedded software companies often reach an inflection point where they need experienced technical leadership but cannot yet justify — or do not need — a full-time CTO. I work with founders and leadership teams in exactly that situation.

My focus is practical: helping you make better architecture decisions earlier, build engineering teams that actually scale, and avoid the costly embedded systems mistakes I have seen derail otherwise promising products. I engage as a genuine partner, not a consultant who disappears between deliverables.

Embedded system architecture
Firmware strategy & review
Engineering team building
Hardware/software co-design
Android & embedded Linux
IoT product development
Technical due diligence
Vendor & partner evaluation
Process & toolchain improvement
Investor technical prep

Let's talk about your situation.

Whether you're evaluating a potential engagement or have an immediate need, I'm happy to have a direct conversation about whether I'm the right fit.