cat history

Work, in reverse.

Eight roles over fifteen years of voice infrastructure, network architecture and leadership, plus a short but formative spell at the front of an Apple store. Listed newest first. The current role is marked.

span2008 → present

roles8

active1

domainvoice / networks / infosec

# timeline active now

 2008        2010        2012        2014        2016        2018        2020        2022        2024        2026
   │           │           │           │           │           │           │           │           │           │
       ├────────────── Poynton Workmens ──────────────┤
                                      ├───┤ Apple
                                          ├───────── Nexbridge ──────────┤
                                                         ├── Wonderful ──┤
                                                                          ├── TruSIP ───┤
                                                                                        ├Cnx─┤
                                                                                             ├ CloudCall ─┤
                                                                                                           ├─────── RocketPhone ▶

01now

Head of Telephony Engineering · RocketPhone.ai

Leading telephony engineering in the voice-intelligence space: PSTN, GSM/LTE, Teams and enterprise voice integrations. WebRTC media path, SIP carrier interconnects, observability, and the sort of dial-tone reliability nobody notices until it goes.

SIPWebRTCKamailioAsteriskTeamsK8sGCP

2025 → now1yrs 5mo

Principal Telephony Engineer · CloudCall

Architected voice for an AIM-listed cloud telephony platform: multi-region carriers, recording at scale, the bridge work between CRM and the PSTN.

AsteriskKamailioPHPAWSHA voicek8s

2023 → 252yrs 2mo

Head of SIP · Connex One

Took the SIP function from a single Asterisk box to multi-DC, multi-carrier delivery. Stood up monitoring, runbooks and the on-call rotation.

AsteriskOpenSIPSKamailioCarriersMulti-DC

2022 → 230yrs 10mo

Senior Voice Developer · TruSIP

Asterisk, Kamailio and the PHP that holds a wholesale SIP business together. Built the customer portal everyone still uses.

AsteriskKamailioPHPMariaDBRabbitMQ

2019 → 222yrs 4mo

Network Architect & Voice Full-Stack · Nexbridge Communications

Five years of doing all of it: racks and routers, IP voice, customer-facing tooling, on-call. Where most of my carrier-grade instincts come from.

BGPOSPFMPLSAsteriskpfSensePHP

2014 → 195yrs 2mo

Operations Director & Lead Developer · Wonderful Organisation

Ran the operations side of a fundraising platform, and wrote the platform that ran it. Tight loop between product and ops.

PHPElasticsearchStripePostgresAWS

2017 → 192yrs 8mo

IS&T Operations Administrator · Poynton Workmens Club

A part-time job that turned into rewiring the building. Started at sixteen. Taught me to do more with very little.

LinuxNetworkingHardwareEPOS

2008 → 167yrs 10mo

Specialist · Apple

Front-of-house at the Arndale store. Where I learnt to talk to people about technology without losing them in the jargon.

PeopleTranslationRetail

2013 → 149 mos

Stack & expertise.

# aggregated across every role above (113 distinct skills)

802.11 technologies active directory amqp android asset management asterisk aws bash bgp bind9 bootstrap caches capistrano captive portals carp carrier relations compliance containerisation cron css3 datacentre management debian dhcp disaster planning disaster recovery distributed infrastructure dns docker eigrp elasticsearch firewalls foss front of house gcp git github google cloud platform group policy hipaa html5 hypervisors iis imap interconnects ipv4 ipv6 iso22301 iso27001 iso9001 java javascript kamailio kubernetes ldap leadership linux load balancers mail servers management membership memcached microsoft office mifid mpls mysql network capacity planning network infrastructure network management networking noc operations nodejs opensips ospf pbx pci dss php php5 php7 point-of-sale postgresql presentation proxmox rabbitmq radius redis retail rfc3261 rfc7519 rtp sales server management sips smtp source control split-horizon dns srtp ssh stock control stocking stripe team building team management telecommunications virtualisation vlan vmware web application firewalls web servers windows wireguard wireless mesh infrastructure wireless network infrastructure wss