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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # API Developer - .NET Customer Success - **Company:** Vitrolife Group - **Location:** Paterna, Spain - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Amazon Web Services, Architectural Patterns, Automation of Tests, Microsoft Azure, Software as a Service, Cloud Computing, Continuous Integration, DevOps, Interoperability, Scrum Methodology, Swagger, Management of Software Versions, Working Model 2D, Openapi, Datadog, Delivery Pipeline, Containerization, Kubernetes, Api Design, Api Gateway, Docker - **Published:** August 29, 2026 - **Apply:** https://www.jobleads.com/es/job/e58633b59b1f885d227b26e8ec5dcaee0 ## About the Role * 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, * 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 ## Description 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 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, * 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 the interview process will be conducted in English. ## Related Videos - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Debugging in the Dark](https://www.wearedevelopers.com/videos/1658-debugging-in-the-dark) - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [Software Engineering Social Connection: Yubo’s lean approach to scaling an 80M-user infrastructure](https://www.wearedevelopers.com/videos/1583-software-engineering-social-connection-yubo-s-lean-approach-to-scaling-an-80m-user-infrastructure) - [DevOps Maturity Check – a way to balance autonomy and alignment](https://www.wearedevelopers.com/videos/58-devops-maturity-check-a-way-to-balance-autonomy-and-alignment) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [The Biggest German Tech Companies](https://www.wearedevelopers.com/magazine/424-the-biggest-german-tech-companies)