knowmad mood is a leading Spanish technology consulting firm specializing in digital transformation, software development, and IT strategy. With a workforce of over 2,500 professionals, the company provides high-impact services across various sectors including banking, insurance, and retail, helping organizations navigate complex technological shifts through innovation and agile methodologies.

Headquartered in Madrid, the company maintains a significant presence across Spain with multiple regional hubs and a strong culture of remote work. For international professionals, knowmad mood is an attractive employer due to its involvement in large-scale international projects, frequent requirements for English-speaking talent, and a flexible "work from anywhere" policy for many of its technical roles.

Founded in 1994 as atSistemas, the company rebranded to knowmad mood in 2023 to reflect its international expansion and digital transformation focus. It is currently listed on the BME Growth market and continues to grow through both organic development and strategic acquisitions.

For international professionals

Offers a high volume of 100% remote roles, allowing employees to live anywhere in Spain.
Many positions specifically require high English proficiency (C1 level), making it accessible for international talent.
Publicly traded on the BME Growth market, indicating financial stability and corporate transparency.
Operates multiple physical offices in major Spanish cities including Madrid, Barcelona, and Palma de Mallorca for those preferring hybrid work.
Actively hires for modern tech stacks including AI, Cloud (AWS/Azure), and DevOps.

Backend Engineer Node.js + AI (Hybrid Barcelona)

knowmad mood

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

We are knowmad mood!

We are a leading digital transformation company, constantly evolving and at the forefront of technology. We were born to provoke real change through innovation and sustainable development, with the mission of bringing value to clients and boosting our talent.

Made up of more than 3,000 creative, digital, and innovative people connected to a purpose and capable of generating connections with people all over the world. A responsible, flexible team with a high capacity to adapt to the needs of our clients and the market, while providing value, vision, creativity, expertise, professionalism, and passion for technology in every project.

The values that mark our course and guide us toward excellence are collaboration, innovation, commitment, fun, and trust.

Through this opportunity, you will have a role as a Fullstack Engineer at a large multinational within the insurance / financial services sector, participating in an innovative GenAI project.

Hybrid model: 2 days on-site in Barcelona District: Sants-Montjuïc.
Fullstack with a focus on Backend Nodejs (90% of development is Backend)
Frontend experience with Nextjs/Reactjs is a plus
High level of English: occasional national and international travel.

Responsibilities:

Backend development with Node.js
Occasional participation in frontend with React / Next.js
Design, development, and evolution of APIs
Contribute to a secure, scalable, and high-quality GenAI platform
Continuous improvement of functionalities and operational efficiency

To be a match...

Solid experience in Node.js (backend essential)
Experience in React / Next.js is a plus
Experience in testing (unit + E2E) with full ownership
Experience in the design and implementation of APIs
Experience in Azure (App Services, Cosmos DB, monitoring) is a plus
Knowledge of Infrastructure as Code (IaC) fundamentals and automation scripts for workflows and operations.
Experience in AI / GenAI:
- APIs (OpenAI, Azure AI, etc.)
- Prompt engineering
- Concepts such as RAG or agent-based architectures
High level of English.

What are our purposes for you?

❤️Supporting your professional growth

Training: if you want to access technical training in skills or languages, we have official certifications, Udemy Business, TechDays, Meetups, and a training calendar available for you to view HERE

🧡Jointly promoting health, well-being, and a great atmosphere!

Work with us under an indefinite contract.

26 days of rest (22 vacation days, 2 personal days, and December 24th and 31st as default holidays).

Schedule: 8:30 to 18:00 (flexible) Mon-Thu and Fri 8:00 to 15:00, and Summer Intensive in July and August from 8:00 to 15:00.

Teambuilding activities: we like to have fun and stay in touch with our people.

Be an ambassador for our brand through our referral plan.

Kudos: we foster a culture of feedback and recognition.

Flexible compensation plan (health insurance, transport, childcare vouchers, restaurant vouchers).

💛Being part of your most special moments

Surprises: You will have some guaranteed surprises during the year (work anniversary, birthday, births...).

Would you like to be part of our evolution?

To stay up to date with our news, follow us here -> knowmad mood

At knowmad mood we are committed to equal opportunity and respect for diversity. We apply our Equality Plan and the principle of non-discrimination in all our selection processes.

View original advert (Spanish)

We are knowmad mood!

Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología. Nacimos para provocar un cambio real a través de la innovación y el desarrollo sostenible, con la misión de aportar valor a los clientes e impulsar nuestro talento.

Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de adaptación a las necesidades de nuestros clientes y del mercado, a la vez que proporciona valor, visión, creatividad, expertise, profesionalidad y pasión por la tecnología en cada proyecto.

Los valores que marcan nuestro rumbo y nos guían hacia la excelencia son la colaboración, la innovación, el compromiso, la diversión y la confianza.

A través de esta oportunidad tendrás un rol de Fullstack Engineer en una gran multinacional dentro del sector insurance / financial services participando en un proyecto innovador de GenAI.

Semipresencialidad: 2 días presenciales en Barcelona Distrito: Sants-Montjuïc.
Fullstack con foco en Backend Nodejs (90% de los desarrollos son Backend)
Valorable experiencia frontal con Nextjs/Reactjs
Inglés alto: viajes puntuales nacionales e internacionales.

Responsabilidades:

Desarrollo backend con Node.js
Participación puntual en frontend con React / Next.js
Diseño, desarrollo y evolución de APIs
Contribuir a una plataforma GenAI segura, escalable y de alta calidad
Mejora continua de funcionalidades y eficiencia operativa

Para hacer match...

Experiencia sólida en Node.js (backend imprescindible)
Valorable experiencia en React / Next.js
Experiencia en testing (unitario + E2E) con ownership completo
Experiencia en diseño e implementación de APIs
Valorable experiencia en Azure (App Services, Cosmos DB, monitorización)
Conocimiento de los fundamentos de Infraestructura como Código (IaC) y scripts de automatización para flujos de trabajo y operaciones.
Experiencia en IA / GenAI:
- APIs (OpenAI, Azure AI, etc.)
- Prompt engineering
- Conceptos como RAG o arquitecturas basadas en agentes
Nivel alto de inglés.

¿Cuáles son nuestros propósitos para ti?

❤️Apoyarte en tu crecimiento profesional

Formaciones: si bien quieres acceder a formaciones técnicas en habilidades o idiomas, tenemos a tu disposición certificaciones oficiales, Udemy Business, TechDays, Meetups, calendario de formaciones que puedes visualizar AQUÍ

🧡Promover en conjunto la salud, el bienestar y ¡El buen ambiente!

Trabaja con nosotros con contrato indefinido.

26 días de descanso (22 días vacaciones, 2 días de libre disposición y 24 y 31 diciembre festivos por defecto).

Horario: 8.30 a 18h ( flexible) L-J y V 8 a 15h e Intensiva de Verano Julio y Agosto de 8 a 15h.

Actividades de Teambuilding: nos gusta divertirnos y estar en contacto con nuestros.

Sé embajador de nuestra marca, a través de nuestro plan amigo.

Kudos: fomentamos una cultura de feedback y reconocimiento.

Plan de retribución flexible (seguro médico, transporte, tickets guardería, tickets restaurante).

💛Ser partícipes de tus momentos más especiales

Sorpresas: Tendrás alguna sorpresa asegurada durante el año (aniversario de trabajo, cumpleaños, nacimientos..).

¿Te gustaría ser partícipe de nuestra evolución?

Para estar al corriente de nuestras novedades síguenos aquí -> knowmad mood

En knowmad mood nos comprometemos con la igualdad de oportunidades y el respeto a la diversidad. Aplicamos nuestro Plan de Igualdad y el principio de no discriminación en todos nuestros procesos de selección.