Senior Backend Engineer - .NET (DevOps oriented) - Remote At 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 Backend Engineer with a strong ownership mindset to drive the evolution of their core platform. 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 banking clients). What you'll do Design and implement backend services in C# / .NET (ASP.NET Core) with a focus on reliability, scalability, and best engineering practices. Design and maintain data models, audit models, and key event‐driven flows for reporting and regulatory compliance. Apply critical backend patterns and engineering standards. Work closely with DevOps to ensure consistent and reproducible environments. Participate in the design and maintenance of Azure infrastructure using Infrastructure as Code. Provide L3 support for on‐prem banking environments (root‐cause analysis, hotfixes, reproducibility). Optimize SQL performance, diagnose queries, read execution plans, and propose performance improvements. Collaborate closely with QA, Security, DevOps, and Data teams to ensure a robust and auditable product. What they're looking for 7+ 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). Hands‐on experience with Docker, performance tuning, and advanced troubleshooting. Comfortable working in hybrid cloud/on‐prem environments. High level of English is essential. TDD / contract testing at scale. Experience with messaging/queueing systems (Azure Service Bus, RabbitMQ, Kafka). Familiarity with Azure Functions and serverless architectures. Tech stack C# / .NET (ASP.NET Core), SQL, Azure, IaC, Docker, Azure Functions, Azure Service Bus, messaging patterns, distributed systems, monitoring & observability. What's offered Permanent contract. Flexible Hybrid model Mission‐critical B2B product with real impact on major corporations and international banks. Senior, high‐standards engineering team with a strong culture of best practices.