Fullstack Engineer / AdTech

About the Position

MWDN is an international recruitment and outstaffing company connecting exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. They are looking for a Senior Full Stack Developer to shape the future of programmatic advertising, building high-performance systems that process millions of ad transactions in real time, leveraging cutting-edge AI technologies.

Responsibilities8

• Design and develop full-stack applications for programmatic advertising workflows using React, Node.js, and Python
• Build and maintain integrations with major SSPs and DSPs
• Implement and optimize Prebid.js and Prebid Server configurations for header bidding
• Develop OpenRTB-compliant bid request/response handling and auction logic
• Build ad serving infrastructure including VAST/VPAID video ad implementations
• Create publisher-facing dashboards for yield management, analytics, and reporting
• Ensure compliance with privacy frameworks and consent management
• Collaborate with product, partnerships, and data teams to deliver end-to-end solutions

Requirements8

• 7+ years of professional software development experience
• 3+ years working in programmatic advertising or ad-tech
• Strong proficiency in JavaScript/TypeScript, React, Node.js, and Python
• Hands-on experience with Prebid.js, Prebid Server, or similar header bidding solutions
• Working knowledge of OpenRTB protocol and bid stream mechanics
• Experience integrating with ad servers and SSP/DSP platforms
• Understanding of auction dynamics, floor pricing, and yield optimization strategies
• Familiarity with video advertising (VAST, VPAID) and CTV/OTT environments is a plus

Benefits6

• Flexible working hours
• 29 days of PTO (18 working days per year plus all national holidays)
• 10 paid sick days
• Full financial and legal support for independent contractors
• Free English classes with native speakers or Ukrainian teachers
• Dedicated HR support