Eternal Sun, a leading company in the global market of solar panel testing, is seeking a versatile Marketing Support Assistant & Event Coordinator with the expertise to own day-to-day execution of events and paid/owned campaigns across Eternal Sun brands — so strategy and Go-2-Market can scale.

At Eternal Sun, we create high-end sunlight simulators trusted by the world’s top solar panel manufacturers and R&D labs. Our precision and innovation help ensure the quality of solar panels worldwide, hence our motto: Sure about Solar

With solar energy becoming the world’s leading energy source, we’ve grown to 70 FTE over the past decade. Join us in The Hague to help take our brand to the next level!

Key Responsibilities

Event coordination (~20+ a year): registrations, vendors, booth assets, run-of-show, lead capture, and follow-up packs.

Paid campaigns: build & optimise LinkedIn Ads and Google Ads (search/display); optimization and reporting.

Website management: updates in WordPress/other CMS, forms/redirects, on-page SEO basics, and changelog.

Product marketing support: draft datasheets/brochures from messaging; keep battlecards & competitor matrix current.

Social & PR support: monthly calendar, publishing, community engagement; format releases and track press clippings.

Vendor (partner) management: clear briefs, timelines, feedback, QA, and file handover.

Brand assets management and light design tasks.

Reporting & marketing ops: weekly work-in-progress and monthly KPI snapshot; spend tracker and taxonomy upkeep.

Account-Based Marketing execution: target lists & matched audiences, tiered plays (ads/emails/LPs), intent monitoring, Marketing Qualified Accounts & Sales handoff.