Senior .NET API Engineer – REST/gRPC, Cloud

Vitrolife & Igenomix Brasil, part of Vitrolife Group; Valencia; Hybrid; EUR 50,000 - 75,000; Full time

Job summary

Vitrolife Group seeks a hands-on API Developer in Valencia to build robust .NET APIs, REST and/or gRPC, and drive API-first practices within our hybrid team. You will collaborate with Product Owners, Architects, Security, and Platform teams to deliver scalable services.

Focus areas include API architecture, testing, DevOps pipelines, observability, and security considerations to support sustainable product delivery.

Qualifications

• Strong hands-on experience as a .NET API developer.
• Proven expertise designing, building, and consuming APIs (REST and/or gRPC).
• Deep knowledge of API tooling: OpenAPI/Swagger, contract testing, API gateways, security best practices.
• Cloud experience with Azure or AWS.
• Experience with DevOps, CI/CD, automated testing, and observability.
• Strong collaboration and communication skills; able to work with DPO/EA/security teams.
• Awareness of security, privacy, and audit considerations in API data.

Responsibilities

• Design and evolve the API architecture; define contracts, versioning, security, and observability.
• Break down features into technical tasks and actionable work.
• Implement REST and/or gRPC APIs; ensure thorough testing (unit, integration, contract).
• Lead or contribute to sprint planning and technical refinement.
• Maintain DevOps pipelines, CI/CD, monitoring, and operational readiness.
• Collaborate with Platform, Security, and Enterprise Architecture teams.
• Mentor peers and raise the technical bar across the team.
• Identify and mitigate technical risks, dependencies, and debt.
• Support incident resolution and root cause analysis.

Skills

NET API

REST API

gRPC

OpenAPI

Contract testing

API gateways

Security best practices

Azure

AWS

CI/CD

Observability

Collaboration

Docker

Kubernetes

Interoperability

LIMS

Enterprise SaaS

Spanish

Tools

Docker

Kubernetes

Job description

Vitrolife Group seeks a hands-on API Developer in Valencia to build robust .NET APIs, REST and/or gRPC, and drive API-first practices within our hybrid team. You will collaborate with Product Owners, Architects, Security, and Platform teams to deliver scalable services.

Focus areas include API architecture, testing, DevOps pipelines, observability, and security considerations to support sustainable product delivery.