API Developer – .NET Customer Success

• 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

• Experience with interoperability standards or cross-domain integrations

• Regulatory/compliance exposure is a plus but not required

• Enterprise SaaS experience

• Containerization and orchestration (Docker, Kubernetes)

• Observability tooling and APM solutions

• Spanish would be a plus

At the Vitrolife Group, we work every day to unlock the full potential of science and technology to reduce the barriers towards building a family. Together we help our customers and their patients to fulfill the dream of having a healthy baby.

Vitrolife Group is a global provider of medical devices and genetic services. Based on science and advanced research capabilities, we develop services and products for personalized genetic information and medical device products. We support our customers by improving their clinical practice for the patient's outcome of fertility treatment.

Your mission will be to develop and take ownership of the API surface supporting the domain's applications, enabling the team to deliver efficiently, safely, and sustainably. You will balance the need for rapid delivery with the long-term health, scalability, and maintainability of the APIs.

• 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

We're seeking a hands-on API Developer who loves turning product goals into robust technical solutions. You'll craft high-quality.NET APIs, champion API-first practices, and collaborate with Product Owners, Architects, Security, and Platform teams to deliver reliable, scalable services.

Location: Parque Tecnológico, Paterna, Valencia, Spain

• Strong background as a senior engineer or API specialist

• Experience delivering API-centric products in agile teams

• Proficient with cloud platforms, modern architectures, and DevOps practices

• Ability to collaborate with Enterprise Architecture on standards

• Work on real-world products where technology has a direct impact on the business, laboratory operations, and ultimately patient outcomes.

• Join an IT organization that is investing in modern technologies and giving engineering teams a strategic role in the company's growth.

• Have a clear mandate, ownership, and the opportunity to influence technical decisions and ways of working.

• Collaborate closely with Product Owners, Architects, Security, and Platform teams in an international environment.

• Be part of a culture that values engineering quality, innovation, collaboration, and sustainable development.

• Benefit from a hybrid working model, flexible working hours, and private health insurance.