API Azure Senior Engineer (Backend Tech Lead) Location: Remote from Spain Contract: 12 month contract + extensions Rate: €30–€35/hour (Gross) Start: ASAP Role Overview We are seeking an experienced API Azure Senior Engineer / Backend Tech Lead to design, architect, and deliver cloud-native backend solutions using Microsoft Azure and .NET. You will work heavily with REST APIs, Azure services, containerization, and CI/CD pipelines. This is a hands-on senior engineering role within an enterprise environment. Key Responsibilities
- Design, develop, and test REST APIs and backend services.
- Build cloud applications using .NET 6+ and C# .
- Architect backend and integration solutions leveraging Azure Functions, Service Bus, AKS, APIM , and more.
- Lead solution design, code reviews, best practices, and backend architecture decisions.
- Work with Docker for packaging and deployment.
- Use Azure DevOps and Git for CI/CD pipelines and automated deployments.
- Collaborate with cross-functional engineering and product teams.
- Propose innovative cloud-native architectural solutions. Requirements
- Bachelor’s degree in Computer Science or related field.
- 8+ years of experience in backend/cloud development.
- Strong expertise in C# / .NET 6+ .
- Deep knowledge of REST API design and development.
- Hands-on experience with Azure cloud services , including: – Azure Functions – Azure Service Bus – AKS (Azure Kubernetes Service) – Azure API Management (APIM)
- Experience with Docker and containersation.
- Experience with Azure DevOps , Git, CI/CD pipelines.
- Strong English communication skills.
- Ability to lead backend technical delivery independently.