I’m a Senior software engineer with 24+ years stabilising and modernising complex enterprise systems across retail, fintech, insurance and healthcare. I focus on turning messy operational processes into reliable software—typically through strong integration, observability, and pragmatic engineering. In recent years I’ve been heavily focused on practical AI-assisted development: LLM tooling, prompt optimisation, local model workflows, and agent-style automation that reduces manual overhead while keeping delivery maintainable and aligned to real business outcomes.

Dave Gibbons

I’m a Senior software engineer with 24+ years stabilising and modernising complex enterprise systems across retail, fintech, insurance and healthcare. I focus on turning messy operational processes into reliable software—typically through strong integration, observability, and pragmatic engineering. In recent years I’ve been heavily focused on practical AI-assisted development: LLM tooling, prompt optimisation, local model workflows, and agent-style automation that reduces manual overhead while keeping delivery maintainable and aligned to real business outcomes.

Available to hire

I’m a Senior software engineer with 24+ years stabilising and modernising complex enterprise systems across retail, fintech, insurance and healthcare. I focus on turning messy operational processes into reliable software—typically through strong integration, observability, and pragmatic engineering.

In recent years I’ve been heavily focused on practical AI-assisted development: LLM tooling, prompt optimisation, local model workflows, and agent-style automation that reduces manual overhead while keeping delivery maintainable and aligned to real business outcomes.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Beginner
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Language

English
Advanced

Work Experience

Director / Senior Full Stack AI Engineer at SimianSystems LTD
July 1, 2025 - Present
Founded and operates SimianSystems as an independent contracting and product-development company delivering practical software, AI-assisted delivery, and workflow automation for local businesses. Architect and prototype AI-enabled tools, automation workflows, and full-stack applications using modern .NET, cloud and LLM tooling. Apply AI-assisted delivery patterns, local model experimentation, and agent-style workflows to accelerate prototyping and reduce manual process overhead. Emphasis on pragmatic MVP delivery with clear business outcomes, maintainable systems, and fast iteration without unnecessary complexity.
Senior Full Stack Engineer / Integration Engineer at Woolworths New Zealand
November 1, 2022 - July 1, 2025
Worked across multiple Woolworths NZ engineering squads delivering backend, integration, and full-stack changes across payments, loyalty, customer care, logistics, and B2B franchise systems. Supported online shopping payment systems via Woolworths Wpay including fallback integrations with Payment Express / Windcave. Built and supported integrations between Woolworths internal systems and Salesforce Service Cloud using Azure Service Bus, Azure DevOps, Terraform, and Helm. Contributed to the launch and stabilisation of Everyday Rewards in New Zealand. Monitored and resolved dead-letter queue issues after launch, reducing customer data integration issues from 80+ per day to fewer than 5 per day within ten weeks. Delivered changes across C#/.NET microservices backed by SQL Server, MongoDB and Cosmos DB, including logistics/purchase-order workflows and franchise portal contributions.
Senior Software Developer (Contract) at scyllogis Consulting Ltd
July 1, 2016 - August 31, 2016
Supported final production launch of Effikacy, integrating ACORD messaging with insurance policy and claims administration systems using C#, ASP.NET MVC, and SQL Server.
Senior Software Developer (Contract) at Otis Elevator Co.
July 1, 2015 - October 31, 2015
Built finance reporting enhancements and integrations for an internal reporting platform during ERP transition work.
Senior Software Developer (Contract) at XL Group
April 1, 2014 - December 31, 2014
Developed and supported C#/.NET features for Global UI, an insurance platform connected to back-office Genius systems used across 24/7 operations.
Senior Software Developer (Contract) at Sixth Domain
December 1, 2013 - April 30, 2014
Delivered MIS-Mule, a C# integration tool for securely extracting and sending school MIS data to an online behaviour and rewards platform.
Senior VB6/C# BuySide GUI Specialist at Fidessa
June 1, 2011 - February 28, 2013
Worked on Minerva, a complex buy-side order management system, including VB6-to-C# migration, GUI performance, configuration tooling, and stability/security updates.
Senior Software Developer (Contract) at Bupa International
November 1, 2007 - February 28, 2011
Supported and modernised SWAN, a large insurance operations platform; improved build automation from roughly two days to two hours and mentored incoming contractors.

Education

at University of Auckland (Computer Science coursework)
January 11, 2030 - July 23, 2026
at Mount Roskill Grammar, Auckland
January 11, 2030 - July 23, 2026

Qualifications

Certified Ethical Hacker
January 11, 2030 - July 23, 2026

Industry Experience

Retail, Financial Services, Healthcare, Professional Services, Software & Internet