work closely with Product Owners, Frontend developers, and QA Engineers to deliver end-to-end features - from concept to deployment and operation. You bring in your experience with microservices, OpenAPI, OAuth, and event sourcing to shape smart, future-ready architectures. Clean code is your standard: you write tests, review code, and follow modern engineering best practices. Performance matters to … backend development with C#/.NET and Azure. You prefer functional over object-oriented programming (e.g., using LanguageExt) and feel at home with modern backend concepts like microservices, REST, OpenAPI, OAuth, and event sourcing. You have experience developing software solutions for IoT devices and understand the unique technical and architectural challenges involved. You're confident working with SQL and More ❯
work closely with Product Owners, Frontend developers, and QA Engineers to deliver end-to-end features - from concept to deployment and operation. You bring in your experience with microservices, OpenAPI, OAuth, and event sourcing to shape smart, future-ready architectures. Clean code is your standard: you write tests, review code, and follow modern engineering best practices. Performance matters to … backend development with C#/.NET and Azure. You prefer functional over object-oriented programming (e.g., using LanguageExt) and feel at home with modern backend concepts like microservices, REST, OpenAPI, OAuth, and event sourcing. You have experience developing software solutions for IoT devices and understand the unique technical and architectural challenges involved. You're confident working with SQL and More ❯
at Performativ, you'll lead the design and implementation of robust, high-throughput APIs and backend systems. Everything we build is grounded in open web standards -HTTP, JSON, webhooks, OpenAPI -and built for scale, reliability, and clear interoperability. You'll work on the core systems that power mission-critical financial infrastructure for institutions across Europe. What you'll do … Design and implement modern, standards-based APIs using REST and OpenAPI specifications Build scalable backend systems that handle millions of HTTP/JSON transactions daily with low latency Develop and maintain secure, event-driven integrations via webhooks and callback mechanisms Lead the backend design of new products and services, ensuring interoperability and long-term maintainability Optimize for resilience, observability … re looking for 10+ years of backend engineering experience, with a strong focus on API development and integration Deep understanding of open web standards including HTTP, JSON, webhooks, and OpenAPI Track record of building reliable, low-latency systems at scale handling millions of daily API calls Experience with backend languages like Go, TypeScript (Node.js), Python, or PHP in production More ❯
