Consulting on Complex, Embedded & Multi-Layer Systems

Diagnosing, stabilising, architecting, designing, and developing

I work with organisations where things have become difficult to reason about. I thrive in complex embedded and real-time environments at the intersection of hardware, firmware, operating systems, distributed infrastructure and communications.

My focus is on identifying the real underlying mechanisms driving instability and inefficiency - distinguishing root cause from surface symptom. The aim is to build or restore clarity.

Engagements include targeted architectural review and system rescue to deep failure analysis and technical leadership during periods of complexity, instability or change.

Moko coffee pot with a yellow background

Examples of Problems I Solve

Intermittent & Real-World Failure Behaviour

Subtle field failures, timing anomalies and behaviours that appear only under specific real-world conditions. Issues spanning firmware, operating systems and distributed infrastructure, requiring detailed cross-layer investigation.

Embedded & Hardware-Software Integration Breakdowns

When assumptions across hardware, firmware and software no longer align. I help isolate integration faults, add clarity at system boundaries, and stabilise behaviour in constrained environments.

Architecture That No Longer Feels Sound

Systems that function, but feel fragile, slow or increasingly difficult to evolve. I review architecture, identify structural weaknesses, and help rebuild foundations that support reliability and deliberate scale.

Deep Debugging & Failure Forensics

When conventional debugging hasn't worked and causes remain unclear. I discover the underlying causes of the problems, and identify and deliver solutions to them (I am a spookily good debugger).

Real-Time, Performance & Reliability Risks

Before scaling, broad deployment, or major change, I assess system resilience - particularly in embedded and real-time environments where timing, state integrity and recovery paths really matter.

Senior Technical Judgement in Complex Environments

When complexity spans teams and decisions stall. I help reframe the real problems, provide independent technical judgement, and create forward momentum with clear architectural direction.

About Colin McCormack

Colin McCormack, Principal Systems ConsultantI'm a Principal Systems Engineer with decades of experience working in complex, real-world technical environments - particularly in embedded and distributed systems where hardware, firmware, operating systems, communications, and infrastructure intersect.

Throughout my career, I've focused on diagnosing and stabilising systems operating under constraint. I've worked across infrastructure, platform and product engineering, helping teams design and evolve systems that are functional, resilient, maintainable, and structurally sound.

I'm often brought in when behaviour becomes unpredictable, integration is brittle, or architecture no longer inspires confidence. Whether investigating difficult failure modes, reviewing architecture before scale, or guiding teams through complex transitions, the goal is consistent: restore clarity, reduce systemic risk, and improve the durability of the system as a whole.

Good systems are built deliberately, and they evolve deliberately. Good deliberation values clarity over fashion, simplicity over cleverness, and engineering judgement over short-term optimisation. That's where I come in.

Over the course of my career, I've worked with organisations including the Australian Taxation Office, Westpac, the Royal Australian Navy, AAP, Unisys, Adelaide University, Royal Adelaide Hospital, as well as technology companies across telecommunications, satellite communications, manufacturing and medical systems.

I am based in Australia. I work globally.

How I Can Help

Architecture Review & Technical Strategy

Focused engagements to assess system structure, identify systemic risk, and provide clear, actionable architectural direction.

Technical Investigation & Rescue

Hands-on involvement to diagnose persistent failures, brittle integration or performance collapse that have resisted conventional debugging.

Ongoing Advisory & Senior Support

Part-time or fractional involvement providing independent architectural insight, design oversight, senior technical judgement and cross-team clarity.

Selected Projects

Below are selected examples of work across embedded systems, distributed infrastructure and real-time platforms. Each reflects situations where systems were under strain and required architectural clarity, disciplined investigation or stabilisation under real-world constraints.

Global Distributed Control Systems

Stabilised and evolved large-scale irrigation platforms deployed across thousands of sites worldwide, working across firmware, communications and backend infrastructure to improve reliability, fault isolation and long-term maintainability.

Embedded & Real-Time System Rescue

Diagnosed and resolved subtle hardware-software integration faults in constrained environments where failure conditions were difficult to reproduce, restoring predictable behaviour across system layers.

Telecommunications & Infrastructure Architecture

Designed and analysed complex networking and distributed systems, providing architectural oversight and technical reporting for high-stakes deployments where reliability, performance and systemic clarity were critical.

Start a Conversation

If you're dealing with unpredictable behaviour, architectural strain, or complex cross-layer integration issues, I'm available to discuss your situation and explore whether a focused intervention would be valuable.

Coffee beans - image by Łukasz Rawa, Unsplash