Backend Engineer

• Solid backend engineer (PHP/OOP or similar). You can design a data model, write SQL that scales, and own a feature end to end. 4+ years of real product work. 

• Comfortable across the stack. Backend is the centre of gravity, but you can ship a clean admin screen in HTML, CSS and JavaScript (jQuery today; we are pragmatic about what comes next). 

• API-first mindset. REST/JSON, webhooks, queues, cron. You know what good logging and monitoring look like in production. 

• Hands-on with AI, not just aware of it. You have built something with the OpenAI or Anthropic APIs, or you are itching to. You know the difference between a gimmick and an integration that earns its place. 

• Structured operator. Tickets up to date, documentation current, releases on schedule. You do not need to be chased. 

• Commercial instinct. You understand that every feature ties to revenue, margin or partner retention, and you like that. 

• Fluent English; Dutch is a plus, not a requirement. 

• Python or Node alongside PHP.

• Marketing/ad-tech/lead-gen/CRM/CDP platform experience.

• CI/CD, Docker, observability tooling (Sentry/ELK or similar).

• Composer, PSR standards, PHPUnit.

PHP, MySQL, HTML, CSS, JavaScript (jQuery), Git, REST/JSON APIs, webhooks, cron and queues, the in-house LeadExpert platform, CRM and BI tooling.

We are deliberate about where we modernise (AI layer, data pipelines, observability) and where we don’t. You help shape those calls.

Monday: refinement with Operations; translate questions into platform solutions
Tuesday: take a new API integration live and document it
Wednesday: MySQL performance tuning + small UI improvements in LeadExpert
Thursday: bug fixes, feedback adjustments, prepare and roll out release
Friday: demo new features; capture improvements and plan follow-up