TwinRed is a leading service provider in the digital advertising sector, offering self-service and openRTB capabilities to its clients as well as operating a well-established affiliate network. Designing, building and maintaining high-performance, scalable and reliable systems handling large volumes of traffic. Working hands-on with Go as a core part of our backend stack. Occasionally contributing to a core service written in Scala, diving into legacy PHP code. Solving challenges involving application performance, networking, operating systems (Linux) and infrastructure. Continuously profiling, optimizing and improving existing systems for performance, efficiency and reliability . Working with Google Cloud Platform (GCP) , including BigQuery, Kubernetes clusters and other managed services, while occasionally supporting and maintaining on-premise infrastructure when needed.



Investigating complex production issues and developing practical, permanent solutions. 5+ years of professional software development experience. ~ Strong professional experience with Go (Golang) . ~ Excellent level of English. ~ Strong understanding of computer science and systems fundamentals , including memory allocation, cache locality, pointers and references. ~ Someone who wants to understand why a system behaves the way it does, isn't afraid to investigate unfamiliar territory and cares about building solutions that perform well in production. Complex technical challenges involving high traffic, performance and scalability Private health insurance Modern office in central Barcelona Free coffee and snacks #

📌 Senior Software Engineer (Barcelona)
🏢 TwinRed
📍 Barcelona