Senior .NET Developer - Application Infrastructure - Temporary Position

About Payoneer Founded in 2005, Payoneer is the global financial platform that removes friction from doing business across borders, with a mission to connect the world’s underserved businesses to a rising global economy. We’re a community with over 2,500 colleagues all over the world, working to serve customers, and partners in over 190 countries and territories. By taking the complexity out of the financial workflows–including everything from global payments and compliance to multi-currency and workforce management, to providing working capital and business intelligence–we give businesses the tools they need to work efficiently worldwide and grow with confidence. Role summary As a Senior .NET Developer on our Application Infrastructure team, you will design, build, and evolve the core platform components that power Payoneer’s global financial services. You’ll work on highly available, distributed systems that serve millions of customers across 190+ markets, partnering with engineering teams to deliver shared frameworks, libraries, and cloud-native services. This is a role for someone who genuinely loves technology, is energized by AI’s impact on how we build software, and wants to shape the foundation that the rest of engineering builds on. Petah Tikva, Israel Hybrid Full-time What you’ll do · Design, build, and own end-to-end backend services and shared infrastructure components written in C# / .NET (.NET 8+) that power Payoneer’s global platform · Build and operate cloud-native services on AWS or Azure, including containerized workloads (Docker, Kubernetes), serverless functions, messaging, and observability · Design data models and high-performance access layers across both relational (SQL Server, PostgreSQL) and NoSQL stores (MongoDB, Redis, Couchbase, or similar) · Integrate AI capabilities into platform tooling and services – from