API Developer - .NET Customer Success

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.

Build Things the Right Way (Together)
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.

Your Mission
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.

What You’ll Do

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



What You Bring

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


Nice to Have

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


Background & Experience

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



Why Join Us?

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.


Please note that this role is based in Valencia or Gothenburg.
Applications will be reviewed on an ongoing basis, so please submit your application as soon as possible.

We are currently approximately 1 130 colleagues worldwide, with headquarters in Gothenburg, Sweden. Vitrolife Group's products and services are available in more than 110 countries through our own presence in 30 countries and a network of distributors. Vitrolife Group is a sustainable market leader and aims to be the preferred partner for IVF-clinics by providing superior products and services with the vision of fulfilling the dream of having a healthy baby. The Vitrolife share is listed on Nasdaq Stockholm.