Summary
Dez Iddon is a Principal Engineer focused on innovation with over 18 years building web products, UX-driven experiences and commercial strategies for clients ranging from governments to fintech and media. Based in Dublin, he blends hands-on front-end craft with senior engineering leadership, currently shaping experimentation and delivery at Marsh McLennan after senior principal work at Fenergo. A long-time freelancer and early web professional, Dez brings a pragmatic maker’s mindset—design thinking, rapid prototyping and a taste for playful, “mad scientist” experimentation—to complex enterprise domains. He’s comfortable bridging product, design and engineering to turn ambiguous requirements into polished, usable systems and revenue-generating features. Notably, his career spans both boutique agency work and large-scale regulated environments, giving him a rare combination of creative versatility and compliance-aware engineering.
11 years of coding experience
10 years of employment as a software developer