pubGENIUS
pubGENIUS — Madrid
pubGENIUS is a React.js and Next.js development agency and ad tech startup. We build web and AI products for clients in the US and Europe. Our focus areas include DeFi, fintech, and healthcare. We are hiring a Full-Stack Developer with a strong backend focus. You will work on real client products and internal systems using React, Node.js, TypeScript, and AWS. This is a full-time, contractor-based …
To apply for this job please visit www.adzuna.com.
About this role & career path
Working in Madrid
Madrid is the capital and most populous city of Spain. It had a population of over 3.4 million in the city proper in 2025, and a metropolitan area population of approximately 6.8 million. Madrid is the second-largest city in the European Union (EU), after Berlin, and its metropolitan area is the second-largest in the EU, after Paris. The municipality covers an area of 605.77 square kilometres (233.89 sq mi). Madrid lies on the River Manzanares in the central part of the Iberian Peninsula at about 660 metres (2,170 ft) above mean sea level. The capital city of both Spain and the surrounding aut
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