enior .NET Engineer – (DevOps oriented) - RemoteAt Q-tech, we're partnering with a well‐established fintech company that develops advanced banking‐connectivity and cash‐management solutions for large enterprises and financial institutions across more than 15 countries.We are currently looking for a Senior Engineer (C#/Azure) with a strong ownership mindset to drive the evolution of their core platform.The product is B2B, highly critical, fully audited, and directly connected to international banks.They are looking for someone who combines solid .NET backend expertise with real‐world experience in Azure, DevOps, and Infrastructure as Code, and who is comfortable working in hybrid environments (cloud + on‐prem infrastructures for clients).What you'll doDesign and implement backend services in C# / .NET (ASP.NET Core) with a focus on reliability, scalability, and best engineering practices.Define versioned and stable APIs following schema‐first models to ensure long‐term compatibility and traceability.Design and maintain data models, audit models,



and key event‐driven flows for reporting and regulatory compliance.Apply critical backend patterns and engineering standards.Contribute to distributed systems with asynchronous processing and messaging.Participate in the design and maintenance of Azure infrastructure using Infrastructure as Code.Optimize SQL performance, diagnose queries, read execution plans, and propose performance improvements.Collaborate closely with QA, Security and Data teams to ensure a robust and auditable product.What they're looking for7+ years of experience as a Backend Engineer.Deep expertise in C#/.NET, SQL, and distributed architectures.Solid hands‐on experience with Microsoft Azure and IaC in production (mandatory).Background in regulated, audited, compliance‐driven or banking environments.Hands‐on experience with Docker, performance tuning, and advanced troubleshooting.Strong ownership mindset and ability to lead technically without a people‐m

📌 Senior.Net Engineer – (Barcelona)
🏢 Q-Tech
📍 Barcelona