Senior Fullstack Engineer - Marketing

We're looking for a Senior Full-Stack Engineer to own the engineering behind hevodata.com, one of our highest-traffic and most important growth surfaces.

This role goes beyond building frontend pages. You'll own the experience end-to-end across frontend, backend, performance, SEO, analytics, integrations, experimentation, and deployment. You'll work across our existing Django and WordPress stacks while leading the migration toward Next.js, React and TypeScript.

Responsibilities:

• Build and ship high-converting marketing pages across Django and WordPress, owning the complete journey from data models and APIs to production UI.
• Extend Django models and admin capabilities so Marketing can publish and manage content independently.
• Build and maintain APIs and integrations for forms, lead capture, signup/auth handoffs, content and search.
• Lead the Django Next.js / React / TypeScript / Tailwind migration while maintaining SEO, analytics and experimentation.
• Own website performance, including Core Web Vitals, TTFB, caching, query efficiency, CDN and asset optimisation.
• Modernise legacy code, dependencies, build tooling and deployment workflows.
• Own CI/CD, Docker, AWS and production monitoring.
• Build and maintain A/B tests and CRO experiments.
• Own integrations across HubSpot, ATS systems, GA4/GTM and other marketing technologies.
• Drive technical SEO, accessibility, structured data, redirects and sitemap management.
• Establish automated testing and contribute to engineering standards through code reviews and mentorship.
• Partner closely with Design, Growth, Marketing, SEO, Product and Marketing Operations.

Requirements:

• 5+ years of experience building and running production web applications end-to-end.
• Strong production experience with Python and Django, including models, migrations, ORM, views, admin and Django REST Framework.
• Strong SQL and relational database experience with MySQL/Postgres.
• Expert-level HTML, CSS/SCSS and modern JavaScript.
• Strong React and TypeScript experience; Next.js experience is preferred.
• Experience with server-rendered/templated applications such as Django templates and PHP/WordPress or equivalent.
• Proven experience improving performance on a real, high-traffic website, including both frontend Core Web Vitals and backend response times.
• Working knowledge of Git, Docker, CI/CD and AWS.
• Experience working with and modernising legacy codebases, build systems and dependencies.
• Ability to independently take ownership from a rough design or brief through production.

Good to Have:

• Growth or marketing engineering experience.
• A/B testing or CRO experience, including VWO or similar platforms.
• CRM/martech integrations such as HubSpot or Salesforce.
• Technical SEO experience on high-traffic websites.
• WordPress theme/Gutenberg development.
• Design systems and WCAG/accessibility experience.