We're looking for a Software Engineer with an Agentic mindset — someone who doesn't just write code, but builds systems that think, act, and adapt. You'll work on a production AdTech platform with real business impact, and you'll increasingly work alongside AI agents and design agentic workflows as part of your daily engineering practice.
This is not a ticket-execution role. We expect you to bring judgment, ask the hard questions, design thoughtfully, and genuinely care about the quality of what you ship — whether that code was written by you, assisted by AI, or executed autonomously by an agent you designed.
AdTech (nice to have)
If this sounds like you and you want to build something that matters, we'd love to hear from you.

Refinery89 is a Google Certified Publishing Partner and member of IAB Europe's Transparency and Consent Framework driven to revolutionize AdTech.
As the #1 Publisher Network in Europe and Latam, we help Publishers monetize their websites in the easiest way possible with our premium solutions specially designed to maximize ad revenue. On top of that, we count on a direct sales team to further increase Publishers’ ad inventory value and optimize Advertiser’s ad campaigns to achieve the best results!
Born from Dutch roots and headquartered in sunny Madrid, Refinery89 has grown into a global team of passionate professionals of over 20 different nationalities prepared to give Publishers and Advertisers personalized attention every step of the way.
Let's work together to bring in fantastic results!
Meet our award-winning solutions:
- Single Tag (Connect your website to over 25+ premium demand sources to maximize ad revenue): https://refinery89.com/single-tag-revenue-growth/
- Monetize App SDK (Access premium demand to monetize your app's ad space without breaking your head in the installation process): https://refinery89.com/monetize-app-sdk/
- Interest Driven Targeting Technology (Advertiser's new best friend for cookieless targeting): https://refinery89.com/advertisers/
Ready to step up your ad game? Reach out to us: https://refinery89.com/contact-us/
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