Senior Web Developer, Marketing

OnPay is looking for a Senior Web Developer, Marketing to own the technical development, infrastructure, and health of OnPay.com , a critical part of how small businesses discover, evaluate, and ultimately choose OnPay.

Reporting to the VP, Growth Marketing, this is a hands-on role for a strong web developer who can own a live marketing site end to end, from WordPress development, infrastructure, integrations, tracking, and site performance to landing pages, experimentation, and technical support for Growth initiatives.

You’ll work closely with Growth Marketing, Web/CRO, Content, Performance Marketing, Marketing Analytics, RevOps, Sales, Product, Partnerships, and other teams across the business. You’ll be expected to make sound technical decisions independently, move quickly from a clear business goal to a working solution, and proactively identify opportunities to improve how the site performs.

The right person is a developer first, but understands that the website is also a Growth engine. You care about clean code, site reliability, security, accessibility, and maintainability, and you’re equally comfortable implementing pixels, launching an A/B test, troubleshooting an integration, or building a new experience that helps turn more visitors into customers.

* Website ownership. Own the development, maintenance, and documentation of OnPay’s marketing website, landing pages, forms, calculators, and interactive tools in WordPress, including custom themes, blocks, and plugins.

* Fast, reliable delivery. Launch landing pages, campaigns, and web requests across Marketing and other business teams efficiently. Prioritize with the VP, flag tradeoffs early, and maintain strong delivery velocity.

* Experimentation. Partner with Web/CRO, Content, Performance Marketing, and Marketing Analytics to turn hypotheses into well-instrumented A/B and multivariate tests. Own technical setup, QA, launch, and implementation of winning experiences, and contribute to experiment design and analysis.

* Tracking. Own the technical implementation and QA of pixels, tags, conversion events, and the data layer using Google Tag Manager and GA4, partnering with Marketing Analytics and RevOps on measurement definitions and source-of-truth reporting.

* Integrations and custom code. Build forms, webhooks, integrations, and custom workflow actions across HubSpot, Zapier, and other systems.