Anonymised career journal

Work, kept in context.

A growing record of recurring engagements and representative projects. Historical periods establish the practice; reviewed weekly entries document new work without exposing client or access information.

Last public update Weekly review cycleQuarterly portfolio review

01

Recent practice

Operational continuity, modernisation and complex escalation.

Enterprise operations · Anonymised

Weekly enterprise infrastructure operations #

Privacy-reviewed evidence for the week covered architecture and design, implementation, migration and lifecycle work and monitoring across automation, backup and storage, cybersecurity and database services. The entry records recurring technical work without identifying clients or presenting proposals and unverified completion signals as delivered outcomes.

  • Asterisk / FreePBX
  • Catalyst Switching
  • Cisco Duo
  • Cisco ISE
  • Cisco Routing
Enterprise operations · Anonymised

Weekly enterprise infrastructure operations #

Privacy-reviewed evidence for the week covered architecture and design, implementation, migration and lifecycle work and monitoring across automation, backup and storage, cybersecurity and database services. The entry records recurring technical work without identifying clients or presenting proposals and unverified completion signals as delivered outcomes.

  • Asterisk / FreePBX
  • Cacti
  • Catalyst Switching
  • Cisco Duo
  • Cisco ISE
Enterprise operations · Anonymised

Weekly enterprise infrastructure operations #

Privacy-reviewed evidence for the week covered architecture and design, implementation, migration and lifecycle work and monitoring across automation, backup and storage, cybersecurity and database services. The entry records recurring technical work without identifying clients or presenting proposals and unverified completion signals as delivered outcomes.

  • Asterisk / FreePBX
  • Cisco Duo
  • Cisco ISE
  • Cisco Routing
  • Cisco Secure Firewall
Enterprise operations · Anonymised

Weekly enterprise infrastructure operations #

Privacy-reviewed evidence for the week covered architecture and design, implementation, migration and lifecycle work and monitoring across automation, backup and storage, cybersecurity and database services. The entry records recurring technical work without identifying clients or presenting proposals and unverified completion signals as delivered outcomes.

  • Asterisk / FreePBX
  • Catalyst Switching
  • Cisco ISE
  • Cisco Secure Firewall
  • Cisco Wireless
Enterprise operations · Anonymised

Weekly enterprise infrastructure operations #

Privacy-reviewed evidence for the week covered architecture and design, implementation, migration and lifecycle work and monitoring across automation, backup and storage, cybersecurity and database services. The entry records recurring technical work without identifying clients or presenting proposals and unverified completion signals as delivered outcomes.

  • Asterisk / FreePBX
  • Cacti
  • Cisco ISE
  • Cisco Routing
  • Cisco Secure Firewall
Enterprise operations · Anonymised

Enterprise infrastructure operations and technical delivery #

The week combined network and cybersecurity operations, troubleshooting, lifecycle work and implementation preparation with Linux services, voice/SBC platforms and focused automation. This public summary reflects recurring, cross-source evidence; proposals and unverified completion signals are not presented as delivered outcomes.

  • Network operations
  • Cisco security
  • Linux services
  • Voice / SBC
  • Automation
Retail · Education · Multi-sector

Enterprise wireless lifecycle, migration and recovery #

Controller and access-point migrations, software pre-download, image-integrity recovery, site-policy alignment, staged resets and post-change validation across Cisco wireless environments.

  • Catalyst 9800
  • CAPWAP
  • IOS XE
  • Automation
  • Troubleshooting
Enterprise · Multi-sector

Security architecture and secure-access operations #

Firewall policy and lifecycle work, segmentation, VPN, NAC and AAA integration, endpoint and DNS-layer controls, authentication troubleshooting and vendor escalation.

  • FTD / FMC
  • ISE
  • RADIUS
  • TACACS+
  • VPN
Managed services

Observability, logging and operational automation #

Monitoring, syslog pipelines, packet-level diagnosis, operational dashboards and focused automation for repetitive or high-risk infrastructure workflows.

  • SNMP
  • Syslog
  • tcpdump
  • Python
  • Bash
Retail · Services · Communications

Voice, contact-centre and SBC modernisation #

PBX, IVR, queues, call reporting and SIP integrations supported alongside network, security and service-continuity requirements.

  • Asterisk
  • FreePBX
  • SIP / PJSIP
  • Ribbon
  • Cisco UC

02

Transformation years

Multi-site architecture, security and managed operations.

Retail · Pharma · Manufacturing · Logistics

Secure multi-site network transformations #

Backbone and MPLS design, resilient switching and routing, segmentation, wireless control, data-centre connectivity and high-availability firewall integration with testing and service transition.

  • MPLS
  • BGP
  • HSRP
  • Catalyst / Nexus
  • HA firewalls
Hospitality · Retail · Education

Managed guest access and captive portals #

Multi-site guest connectivity with authentication, logging, reporting, remote management, VPN support, backup and lifecycle services.

  • Wireless
  • Captive portal
  • AAA
  • Logging
  • Managed service
Telecommunications · Enterprise

Carrier resilience and internet-resource coordination #

Multi-provider routing, eBGP/iBGP and gateway resilience, traffic-policy planning, maintenance procedures, and RIPE NCC/LIR processes for enterprise connectivity.

  • eBGP / iBGP
  • HSRP
  • RIPE NCC
  • IPv4
  • ISP coordination
Cross-sector portfolio

Solution architecture and technical pre-sales #

Discovery, requirements analysis, high- and low-level design, BoM development, RFP/RFI responses, proposal preparation and implementation planning across networking, security, wireless, voice, servers and managed services.

  • HLD / LLD
  • BoM
  • CCW
  • RFP / RFI
  • Stakeholder management

03

Foundations

Systems, software, networks and customer responsibility.

Enterprise infrastructure

Linux, virtualisation and service platforms #

Long-term administration and troubleshooting of Linux and VMware environments supporting DNS, mail, web, database, monitoring, authentication, backup and custom operational applications.

  • Linux
  • VMware
  • MySQL / MariaDB
  • Apache / Nginx
  • Postfix / BIND
Manufacturing · Enterprise campuses

Greenfield and campus infrastructure #

Access and core network designs, fibre components, routing, wireless and operational-readiness scopes for new facilities and expanding enterprise sites.

  • Cisco switching
  • Fibre
  • Campus LAN
  • Wireless
  • Operational readiness
Technology services

Customer systems and network operations #

Service continuity, support prioritisation and administration of customer Linux and network environments, with increasing responsibility for planning and coordination.

  • Linux
  • Routing
  • Switching
  • Customer operations
Logistics · Express transportation

Courier software and supporting infrastructure #

Web-based order, shipment, route and billing workflows supported by Linux and network architecture, combined with direct customer and service-delivery responsibility.

  • Web applications
  • Linux
  • Networks
  • Workflow design
Distribution · Small business · Technology services

Systems administration and practical customer technology #

Early work across computer retail, installation, support, internal systems administration, Linux services and customer network environments.

  • Systems administration
  • Linux
  • LAN / WAN
  • Customer support