This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Full-Stack Engineer (Backend Leaning) – Payments Engineering based in Spain.

As a Full-Stack Engineer specializing in backend development, you will help build and evolve the payment infrastructure that powers a rapidly growing AI technology platform. You will work on critical systems responsible for billing, usage tracking, pricing, and payment processing across self-service and enterprise customers. Your work will directly impact revenue accuracy, customer experience, and the reliability of financial operations. You will contribute to modernizing existing systems, developing scalable event-processing services, and integrating new payment solutions while ensuring seamless migrations. Working closely with Engineering, Product, Growth, Finance, Tax, and Sales teams, you will solve complex technical challenges in a fast-paced, AI-first environment. This remote opportunity offers significant technical ownership,



opportunities to tackle challenging engineering problems, and the freedom to make a measurable impact on products used by millions of people and businesses worldwide.

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Accountabilities

• Design, develop, and maintain reliable payment and billing systems that support customer transactions, pricing models, and revenue operations across self-service and enterprise offerings.

• Build and improve usage-tracking and metering systems to ensure accurate measurement of customer activity while minimizing performance overhead and latency.

• Lead and contribute to the migration and modernization of enterprise pricing and usage-processing infrastructure, including the development of stream-processing services for usage events.

• Improve payment experiences by simplifying customer upgrades and transactions, supporting payments through different legal entities, and integrating additional payment providers.

• Collaborate with Finance and

📌 Full-Stack Engineer (España)
🏢 Jobgether
📍 España