Linux infrastructure • networking • systems reliability

ICT Systems Engineering

Systems engineering shaped by real-world operations: Linux infrastructure, network services, self-hosted platforms, secure communications, documentation, user support, and resilient service recovery.

ICT systems work grounded in long-term operational responsibility

My ICT systems experience has been built over more than eighteen years of practical infrastructure work, much of it in remote, harsh, or low-connectivity environments where reliability was not theoretical. I have supported Linux systems, network services, communications platforms, customer equipment, web and mail infrastructure, cloud-connected services, and secure remote access in settings where distance, weather, limited local resources, and service continuity shaped every technical decision.

I approach ICT systems engineering as a reliability discipline. A working system is not merely a server that boots or a service that responds. It is an environment that can be understood, maintained, secured, documented, recovered, and improved over time. That means thinking through the full lifecycle of an infrastructure stack: deployment, naming, DNS, routing, authentication, certificates, updates, monitoring, backups, documentation, user support, and service recovery.

Operating principle

Good infrastructure should remain understandable when something breaks. I value systems that are observable, recoverable, well documented, secure by design, and practical enough to maintain under real operational pressure.

What I do in ICT systems engineering

Linux infrastructure

Deploying and maintaining Linux servers, command-line administration, service management, permissions, package maintenance, storage layout, logs, firewall considerations, automation habits, and practical recovery workflows.

Network engineering

TCP/IP networking, wired and wireless infrastructure, remote access, VPNs, routing diagnostics, DNS, service naming, connectivity troubleshooting, and performance optimisation across distributed environments.

Web, mail, and communications services

nginx, Apache, TLS certificates, reverse proxies, Postfix/Dovecot-style mail environments, SPF, DKIM, DMARC, PTR alignment, webmail, Matrix, IRC, Nextcloud, Jitsi, and other self-hosted communications platforms.

Infrastructure reliability

Preventative engineering, structured diagnostics, backup awareness, documentation, service recovery, hardening, fault isolation, and designing systems so routine maintenance and unexpected failures can be handled calmly.

Cross-platform support

Supporting Linux, macOS, and Windows users; computer hardware; endpoint devices; local networks; printers and peripherals; application faults; remote support; and customer-facing technical troubleshooting.

Hybrid and remote operations

Supporting cloud-connected and locally hosted services in environments where connectivity constraints, geography, weather, and logistics affect the design and support model.

Knowledge areas that shape my work

Linux systems architectureServer provisioning, secure service configuration, log-driven troubleshooting, Docker/Compose services, web stacks, mail systems, and practical administration utilities.
Infrastructure securityAccess control, encryption awareness, secure remote access, credential separation, system hardening, service exposure review, and risk reduction without unnecessary complexity.
Service continuityDesigning infrastructure with recovery, maintainability, documentation, and supportability in mind from the beginning rather than after a failure occurs.
Low-connectivity environmentsExperience supporting users and services where bandwidth, latency, travel time, and availability of replacement equipment can directly affect operational decisions.
Technical documentationWriting operational notes, procedures, deployment records, installation instructions, public support pages, release indexes, and plain-language user guidance.
Vendor and stakeholder coordinationWorking with clients, users, vendors, service providers, and operational stakeholders to translate real needs into practical infrastructure outcomes.

Operational environments I understand

My background has included independent ICT practice, telecommunications business ownership, military communications training, veteran service organisation support, self-hosted public infrastructure, and software-backed technical platforms. That range gives me a practical understanding of how ICT systems interact with people, communications networks, regulatory expectations, customer needs, and physical infrastructure.

Independent ICT systems engineering

Delivering end-to-end infrastructure support for commercial and remote clients, including Linux servers, network troubleshooting, secure communications, hardware support, operating systems, documentation, and ongoing service maintenance.

Telecommunications-integrated ICT

Designing and supporting ICT environments connected to satellite systems, PBX/telephony, radio communications, customer networks, remote access, and communications-dependent operations.

Mission-critical technical foundations

U.S. Army Signal Corps training and service introduced structured troubleshooting, electronics diagnostics, Linux-based operational tools, communications reliability, and the responsibility attached to safety-critical systems.

Public-facing infrastructure and platforms

Current systems work includes public web hosting, email infrastructure, Matrix and IRC communications, Nextcloud, Jitsi, Vaultwarden, software distribution pages, exam platform support, and documentation designed for real users.

Why this matters for New Zealand

New Zealand’s geography, rural communities, maritime environment, severe weather exposure, and distributed infrastructure needs reward people who understand more than one layer of the stack. ICT systems do not exist separately from communications networks, power availability, user behaviour, field conditions, or resilience planning.

The value I offer is the ability to connect those layers: Linux systems, networks, communications services, field support, documentation, security, and operational continuity. I have been doing this work long enough to understand that reliable infrastructure is not built from tools alone. It is built from judgement, disciplined troubleshooting, clear documentation, and the ability to keep systems useful when conditions are imperfect.

Microsoft and enterprise systems relevance

While Linux and communications infrastructure are a major part of my background, the same operating discipline applies directly to Microsoft-centered business environments. My work is relevant to Microsoft 365 administration, Azure-connected services, Active Directory concepts, Windows Server support, endpoint baselines, identity-aware access, DNS, mail flow, security posture, and practical PowerShell/Git-backed documentation habits.

Microsoft 365 and identity

Mailbox, domain, DNS, authentication, user lifecycle, access review, MFA expectations, and the plain-language support needed when identity systems affect real users.

Windows Server and endpoints

Server roles, endpoint support, patch discipline, baseline configuration, remote troubleshooting, hardware/software faults, and support handoff documentation.

Azure and cloud growth

Azure fundamentals, hybrid thinking, secure access patterns, backup/recovery awareness, and a commitment to strengthening cloud architecture and infrastructure-as-code depth.

MSP and client-facing work

Escalations, calm incident communication, expectation setting, root-cause notes, project delivery, vendor coordination, and trusted-advisor conversations with non-technical clients.

What I am continuing to strengthen

I am intentionally building deeper current-market fluency around Azure administration, Microsoft security baselines, infrastructure as code, and certification-aligned cloud practices. I do not present those as finished credentials. I present them as active development areas layered on top of long-standing systems, documentation, network, and service-reliability experience.

Technology stack

Recruiters and technical leads often need to scan quickly, so this section states the practical stack directly while the rest of the page explains the operating judgement behind it.

Microsoft 365Windows ServerActive DirectoryAzureLinuxVMwareDockerDNSDHCPVPNNetworkingSecurityDocumentationPowerShellGitTLSEmail systems

Typical responsibilities

Infrastructure planning

Translating operational needs into systems that can be maintained, monitored, secured, and recovered.

Escalation support

Taking ownership of difficult incidents, clarifying symptoms, isolating causes, and communicating progress.

Root-cause analysis

Looking beyond the immediate fix to understand what failed, why it failed, and how to reduce recurrence.

Change management

Planning changes carefully, documenting intent, managing risk, and preserving a path back when possible.

Security hardening

Applying practical baselines around identity, access, patching, TLS, logging, endpoints, and administrator discipline.

Business continuity

Thinking through backups, recovery expectations, communications, user impact, and service restoration.