Senior Software Engineer (Node.js) (Valladolid)

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.

La experiencia que se espera de los solicitantes, así como las habilidades y cualificaciones adicionales necesarias para este trabajo, se enumeran a continuación.

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 adecuado 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. xkdbapo

Flexible working hours: you own your work and how you organize it. Get-together team events. Postúlate en Kit Empleo: kitempleo.es/empleo/6tphwx