Cactus is a software development company, providing full-cycle services for the European market. More than 170 companies increased business productivity using solutions developed by Cactus' team. The company has been regularly included in the listings of the best software development companies in Belgium, where we have our HQ, and Europe.
Cactus is ready to expand the team with a Senior Node.Js Software Engineer with strong AI mindset at our office in Seville. This role is ideal for someone who enjoys working on complex architectures, values ownership and autonomy, and wants to have a direct impact on a product used across real organizations.
What You Will Do
* Design, develop and maintain Node.Js microservices and gateway services.
* Contribute to architecture decisions and ensure scalability, security and maintainability.
* Work with MongoDB and MySQL databases and help evolve our data models.
* Collaborate on integrations with external healthcare systems using FHIR standards.
* Work within our Docker/Kubernetes infrastructure and contribute to CI/CD improvements (Bitbucket Pipelines).
What We Expect
* 4+ years of experience in software engineering.
* Strong experience with Node.Js (JavaScript/TypeScript).
* Hands-on experience with microservices architecture.
* Comfortable with both MongoDB and MySQL.
* Familiarity with Docker and Kubernetes.
* Experience with Python and/or Angular is a plus.
* Knowledge of FHIR or healthcare data standards is a nice-to-have.
* Experience with Git and code review practices.
* Interest or hands-on experience with Generative AI / LLMOps.
* Continuous learning mindset, staying up to date with modern coding practices and actively leveraging AI-assisted tools across different phases of the software development lifecycle, while maintaining strong ownership and code quality.
* Good communication skills in English and Spanish is a MUST.
What We Offer
* We value spontaneous interaction, co-creation, and co-ideation.
* A collaborative environment focused on ownership, growth, and impact.
* An environment to keep the pace on AI assisted tools.
* An open, international team of experts.
* Competitive salary, benefits, and learning opportunities.
* Versátil working hours: you own your work and how you organize it.
* Get-together team events.
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