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I am a Lead Mobile Engineer with 10+ years of commercial iOS experience and a strong track record of technical leadership across financial services, marketplaces, and consumer applications. I excel at setting mobile technical direction, leading and mentoring engineers, and delivering complex mobile initiatives from greenfield through scale. I have 5+ years in formal and informal mobile leadership roles, including leading cross-platform teams, owning mobile architecture and delivery strategy for greenfield and large-scale apps, and mentoring engineers to raise technical standards and delivery confidence. I am a trusted partner to Product, Design, QA and senior stakeholders, with extensive experience modernizing delivery models from waterfall to Agile/value streams.…I am a Lead Mobile Engineer with 10+ years of commercial iOS experience and a strong track record of technical leadership across financial services, marketplaces, and consumer applications. I excel at setting mobile technical direction, leading and mentoring engineers, and delivering complex mobile initiatives from greenfield through scale. I have 5+ years in formal and informal mobile leadership roles, including leading cross-platform teams, owning mobile architecture and delivery strategy for greenfield and large-scale apps, and mentoring engineers to raise technical standards and delivery confidence. I am a trusted partner to Product, Design, QA and senior stakeholders, with extensive experience modernizing delivery models from waterfall to Agile/value streams.

David Hillman

App Developer, Full Stack Developer, Web Developer, +2

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I am a Lead Mobile Engineer with 10+ years of commercial iOS experience and a strong track record of technical leadership across financial services, marketplaces, and consumer applications. I excel at setting mobile technical direction, leading and mentoring engineers, and delivering complex mobile initiatives from greenfield through scale. I have 5+ years in formal and informal mobile leadership roles, including leading cross-platform teams, owning mobile architecture and delivery strategy for greenfield and large-scale apps, and mentoring engineers to raise technical standards and delivery confidence. I am a trusted partner to Product, Design, QA and senior stakeholders, with extensive experience modernizing delivery models from waterfall to Agile/value streams.…I am a Lead Mobile Engineer with 10+ years of commercial iOS experience and a strong track record of technical leadership across financial services, marketplaces, and consumer applications. I excel at setting mobile technical direction, leading and mentoring engineers, and delivering complex mobile initiatives from greenfield through scale. I have 5+ years in formal and informal mobile leadership roles, including leading cross-platform teams, owning mobile architecture and delivery strategy for greenfield and large-scale apps, and mentoring engineers to raise technical standards and delivery confidence. I am a trusted partner to Product, Design, QA and senior stakeholders, with extensive experience modernizing delivery models from waterfall to Agile/value streams.

Available to hire

I am a Lead Mobile Engineer with 10+ years of commercial iOS experience and a strong track record of technical leadership across financial services, marketplaces, and consumer applications. I excel at setting mobile technical direction, leading and mentoring engineers, and delivering complex mobile initiatives from greenfield through scale.

I have 5+ years in formal and informal mobile leadership roles, including leading cross-platform teams, owning mobile architecture and delivery strategy for greenfield and large-scale apps, and mentoring engineers to raise technical standards and delivery confidence. I am a trusted partner to Product, Design, QA and senior stakeholders, with extensive experience modernizing delivery models from waterfall to Agile/value streams.

Skills

iOS

Swift

Objective-C

Experience Level

iOS

Expert

Swift

Expert

Objective-C

Expert

Language

English

Fluent

Work Experience

Senior Mobile Developer at Trade Me

November 1, 2021 - October 1, 2025

Senior contributor within one of New Zealand’s highest-traffic consumer apps, delivering across multiple business domains with a focus on delivery quality and technical consistency. Acted as technical anchor for Motors features, supported planning through to release. Partnered with product and stakeholders to shape mobile-first solutions. Mentored junior engineers and supported capability growth within the team. Contributed to improving testing discipline and CI reliability.

Tech Lead at Metro Bank

September 1, 2020 - August 1, 2021

Senior technical leadership role across mobile and cloud teams during a period of significant organisational change. Led two delivery teams (~20 engineers and testers) across mobile and backend. Set technical direction while maintaining delivery momentum. Transitioned delivery from waterfall to value stream and feature-team models. Established new teams from sprint zero through live delivery. Supported the move to monthly mobile releases across iOS and Android. Managed cross-team dependencies and senior stakeholder expectations.

Contract Lead iOS Developer at Hotels.com (Expedia)

April 1, 2018 - April 1, 2020

Delivered features within a large-scale, high-traffic consumer application. Influenced architectural decisions and long-term technical direction. Helped decompose monolithic areas into more modular, maintainable components. Worked in a mature Scrum environment with strong automation and testing culture. Collaborated closely with Product, UX and QA teams.

Lead iOS Developer at VEON

January 1, 2018 - April 1, 2018

Led delivery of features aligned to a major API release. Worked across Swift and Objective-C codebases. Drove migration from MVC to VIPER. Introduced unit testing and integrated automated tests into CI. Operated in a TDD-focused delivery environment.

Mobile Lead at Digital Moneybox

August 1, 2015 - January 1, 2018

End-to-end ownership of mobile delivery for a greenfield financial services product. Built and launched a greenfield Swift iOS app from initial planning through MVP and scale. Defined mobile architecture (MVVM) and delivery standards. Introduced Agile/Scrum into a small, fast-moving product team. Implemented CI and automated UI testing from the outset. Led a cross-platform team of 6 developers (iOS & Android). Worked closely with Product and Design on roadmap and usability improvements.

Contract Senior iOS Developer at Hotels.com (Expedia)

January 1, 2015 - January 1, 2015

Delivered major features, rewrote core functionality, built white-label apps, maintained CI and introduced UI automation.

Contract Lead iOS Developer at MoneySuperMarket

January 1, 2014 - January 1, 2015

Led a complete app rewrite under tight deadlines; re-architected networking and data layers.

Senior Software Engineer at Dextrous Labs

January 1, 2012 - January 1, 2013

Led B2B iPad applications, mentored juniors, client-facing delivery, built internal tooling and CI systems.

Software Engineer at Tigerspike

January 1, 2011 - January 1, 2012

Delivered multiple iOS client projects; involved in scoping, delivery and production issue resolution.