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Campbell Davis

@campbelldavis

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Senior backend engineer and solutions architect delivering reliable PHP/Symfony systems for complex domains.

Australia

Message

What I'm looking for

I am looking for senior-level roles where I can architect backend systems, lead integrations, modernise legacy platforms, and work collaboratively with stakeholders to deliver measurable business value.

I am a Senior Backend Engineer and Solutions Consultant with 10+ years building bespoke technical solutions across Logistics, Construction, Healthcare and Field Services. I combine deep PHP/Symfony expertise with a consulting mindset to translate operational problems into reliable, production-grade systems.

My achievements include leading complex system integrations, architecting business-logic monitoring, rescuing stalled critical projects as an on-site technical lead, and modernising legacy codebases with testing and static analysis. I focus on database optimisation, performance tuning and designing internal tooling that reduces developer overhead.

I work effectively in remote and asynchronous teams, emphasise clear stakeholder communication, and deliver tangible business outcomes through pragmatic architecture, CI/CD practices and rigorous testing.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

FOUR

Nov 2014 - Present (11 years 7 months)

Led backend architecture and integrations for bespoke business systems, delivered a critical onsite rescue project and implemented monitoring and testing practices that reduced regressions and improved reliability.

PHP Symfony PostgreSQL Docker Redis PHPUnit PHPStan CI CD

Web Developer

Australian Hiring Company

Sep 2013 - May 2015 (1 year 8 months)

Revitalised a legacy customer-facing platform with a UI/UX overhaul and maintained PHP backend systems while progressively refactoring and improving stability.

PHP JavaScript HTML CSS Performance Optimization