Main focus: Full stack systems engineering and technical consulting with a focus on building complete, production ready digital platforms. Design and delivering of multi component systems spanning backend services (Go), cross platform mobile applications, custom WordPress/WooCommerce plugin ecosystems, and high reliability business infrastructure. Also REST API development, real time communication systems (WebSockets, CRDT sync, streaming), ERP and POS integrations, event and festival technology platforms, and kiosk/hardware solutions using NFC/RFID, EFTPOS, BLE and embedded device protocols. Modernising legacy software, including Delphi/Pascal systems and integrating them into modern architectures. Building Power BI dashboards, reporting suites and data shaping applications that transform raw operational data into clean, structured, analytics ready models. This includes ETL tooling, data pipelines, and custom interfaces that prepare business data for accurate, high performance Power BI reporting. Speciality:Turning complex business requirements into cohesive, scalable, and maintainable software products that operate reliably in real world environments.
Professional background: Certified Ethical Hacker (CEH) and Computer Hacking Forensics Investigator (CHFI). BSc (University of Auckland, 2011). 20+ years of professional engineering experience. I worked as a full stack software engineer, systems architect, and cybersecurity specialist with deep experience across backend services, mobile development, web platforms, and operational infrastructure. My technical background spans Go API development, JavaScript/PHP/WordPress engineering, React Native mobile applications, and modernisation of legacy Delphi systems across multiple platforms. I have extensive experience in ERP, POS, accounting, and operational business systems, with over 100 integrations delivered across payment gateways, logistics, inventory, finance, and vendor networks. My cybersecurity and forensics background includes penetration testing, digital forensics, infrastructure hardening, and secure system design across Linux and Windows Server environments. I also design and deliver Power BI dashboards, reporting systems, and data transformation tools. This includes building ETL pipelines, shaping raw operational data into clean analytical models, and creating custom applications that prepare data for accurate, real time Power BI reporting across finance, operations, and logistics. I currently architect and build production scale platforms handling six figure transaction volumes, including real time payment systems, NFC/RFID hardware integration, EFTPOS and kiosk systems, offline first mobile architectures, WebSocket streaming, and CRDT based synchronisation. I am experienced with both Google Play and Apple App Store deployment, including Apple exemption and review processes. I maintain long term client relationships (10+ years) across small businesses and multimillion dollar enterprises. My specialty is translating complex operational requirements into stable, scalable, and maintainable software, from ERP systems and hardware automation to event technology platforms, reporting suites, and advanced business tooling. Self employed since 2005.
Professional background: Certified Ethical Hacker (CEH) and Computer Hacking Forensics Investigator (CHFI). BSc (University of Auckland, 2011). 20+ years of professional engineering experience. I worked as a full stack software engineer, systems architect, and cybersecurity specialist with deep experience across backend services, mobile development, web platforms, and operational infrastructure. My technical background spans Go API development, JavaScript/PHP/WordPress engineering, React Native mobile applications, and modernisation of legacy Delphi systems across multiple platforms. I have extensive experience in ERP, POS, accounting, and operational business systems, with over 100 integrations delivered across payment gateways, logistics, inventory, finance, and vendor networks. My cybersecurity and forensics background includes penetration testing, digital forensics, infrastructure hardening, and secure system design across Linux and Windows Server environments. I also design and deliver Power BI dashboards, reporting systems, and data transformation tools. This includes building ETL pipelines, shaping raw operational data into clean analytical models, and creating custom applications that prepare data for accurate, real time Power BI reporting across finance, operations, and logistics. I currently architect and build production scale platforms handling six figure transaction volumes, including real time payment systems, NFC/RFID hardware integration, EFTPOS and kiosk systems, offline first mobile architectures, WebSocket streaming, and CRDT based synchronisation. I am experienced with both Google Play and Apple App Store deployment, including Apple exemption and review processes. I maintain long term client relationships (10+ years) across small businesses and multimillion dollar enterprises. My specialty is translating complex operational requirements into stable, scalable, and maintainable software, from ERP systems and hardware automation to event technology platforms, reporting suites, and advanced business tooling. Self employed since 2005.
Miscellaneous: $75 to $135+ NZD per hour plus GST, depending on project complexity and technology stack. Standard development and consulting (Delphi maintenance, Excel and Access automation, basic reporting, small single platform tasks): from $75 per hour plus GST. Advanced development and multi platform engineering (Go APIs, React Native, WordPress plugin ecosystems, cross platform applications, system integrations, hardware integration, backend and frontend architecture, Power BI dashboards, Power BI data modelling, ETL pipelines, data shaping applications, analytics infrastructure): from $135 per hour plus GST. Cybersecurity and forensics (penetration testing, security audits, incident response, digital forensics): by quotation. Fixed price project quotes available on request.
Feedback: D. Mcdonald: I used Gareth and he was fantastic, super professional. Highly recommend him. • M. Griffin: Very knowledgeable, provided good workable solutions and very approachable. We would hire him again as our first choice as a computer trouble-shooter. • T. Roberts: Gareth has the right skills and is great to work with.
Explanation: + for low, ++ for medium, +++ for high.
On-site work: Auckland up to 2000 km
a) Please consider that the freelancer pays an introduction fee of NZD 270.00 for each genuine introduction.
b) In case of an assignment, the freelancer will invoice you directly, i.e. 100% of your money will reach the freelancer. Unlike other project brokers, you do not have to pay fees or a turnover commission to us, nor do you have to bill via us.
c) Please check that the selected freelancer profile fits well to your project.
d) You have to agree to the hourly rate (NZD 135.00/hr plus travel expenses).
e) You must have an actual project and you are not a professional project broker.
f) You can only request one freelancer per project.
g) You must provide us with brief feedback about the introduction and the freelancer within 14 days