Location: Madrid, Spain, Onsite

Team: Publisher Success

About Refinery89

Refinery89 is a Dutch AdTech company headquartered in Madrid, working with premium publishers around the world to optimize their programmatic advertising performance.

Through advanced technology, data, and hands on technical support, we help publishers increase advertising revenue, improve efficiency, and gain greater transparency across their monetization stack.

Our international team operates at the intersection of technology, digital advertising, data, and publisher operations.

About The Role

We are looking for a Junior Web Technical Specialist to join our Publisher Success team in Madrid.

This is an entry level technical role for someone who already has a foundation in HTML, CSS, and JavaScript and enjoys understanding how websites work, investigating technical problems, and figuring out why something is not behaving as expected.

You do not need previous AdTech experience. We will train you on the AdTech side from zero.

You will work with real publisher websites, browser developer tools, HTML,



CSS, JavaScript, advertising technologies, reporting platforms, and technical diagnostics.

The role is designed for someone who wants to build a technical career around web technologies, troubleshooting, data, and publisher support.

Over time, you will grow toward a Technical Account Management role, combining technical problem solving with ownership of publisher accounts.

What You Will Do

Website Troubleshooting

Investigate technical issues affecting publisher websites.
Use browser developer tools to inspect HTML, CSS, JavaScript, scripts, network activity, and browser errors.
Identify issues related to page structure, styling, scripts, advertising tags, or website configuration.
Reproduce technical problems and investigate their likely cause.
Review browser console errors and network requests when diagnosing issues.
Gather the technical information needed before escalating more comple

📌 Junior Web Technical Specialist (Madrid)
🏢 Refinery89
📍 Madrid