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Senior AI Software Engineer

Hybrid in San Sebastián de los Reyes·Added 4 days ago

BETWEEN Technology

497 open roles

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Overview

Job details

Hybrid
Office and home days — the ad has the split.

Requirements

Have the right to work in Spain
BETWEEN Technology doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
Be near San Sebastián de los Reyes, Spain (Hybrid) for hybrid days
No relocation package mentioned.
Have 6+ years of experience
Senior-level role.
University degree
“Grado universitario en ingeniería informática o equivalente.” — per the ad.

This job was automatically translated to English.

Pay & benefits

What you'll get

Full medical insurance.
Continuous training opportunities: Languages, Certifications, Bootcamps and much more.
Participation in numerous corporate and networking events: BETWEEN Night, Padel Tournament, and much more.
Flexible compensation tailored to your needs (restaurant, transportation, childcare).
Attractive incentives for referring or recommending talent.

Requirements

What we're looking for

Minimum of 6 years of experience in Software Development. Strong proficiency in Python.
Advanced English, with strong oral and written communication skills.
Experience integrating LLMs / Generative AI into cloud-based applications.
Experience building Agentic AI systems that automate real workflows and integrate APIs/tools/services.
Cloud experience with Microsoft Azure and Google Cloud Platform (GCP).
Experience with Docker/containerization and orchestration based on Kubernetes.

Education & certifications

University degree in computer engineering or equivalent. Participation in research projects or a PhD in the industrial/energy sector is highly valued.

The role

At BETWEEN we offer you the opportunities you need to achieve your professional goals. If you want to develop your skills in IT and Engineering, this is your next destination! We provide support across a wide range of areas such as Firmware, Software, BI, Design, Project Management and many more. We also develop custom technology solutions from our BETWEEN Labs.

We are looking for a Senior Full-Stack AI Software Engineer to expand one of our teams for one of our clients in Madrid within the nuclear field.

What you'll do

Design, develop, implement, support, and maintain applications based on business requirements
Design and develop Agentic AI applications that automate multi-step workflows and solve real operational challenges.
Integrate LLMs into applications through secure and robust service layers and APIs, including orchestration, evaluation, and implementation of modern GenAI patterns such as RAG.
Design and implement scalable backend services in Python and REST APIs that support AI/agent capabilities and product flows.
Build, deploy, and operate cloud-native services on Microsoft Azure and Google Cloud Platform (GCP).
Containerize services using Docker and support CI/CD pipelines.
Collaborate with UX/design and product teams to deliver intuitive, AI/agent-based user experiences for enterprise users.

How you'll work

-Hybrid model with up to 50% remote work.

-Flexible working hours between 7:30 AM and 9:00 AM. With intensive working hours on Fridays.

-Intensive working hours from mid-June through August inclusive, and during the two weeks of Christmas.

About BETWEEN Technology

BETWEEN Technology is an IT and engineering consulting firm based in Sant Cugat del Vallès, Spain, specializing in industrial engineering, automation, robotics, and digital transformation. The company provides technical consulting and staffing solutions across sectors such as automotive, pharma, energy, aerospace, and infrastructure, with a strong focus on engineering projects, industrial maintenance, and software development. With around 50 open roles in Spain, it supports clients in both technical and managerial capacities, from CAD design and PLC programming to data engineering and AI.

Industry: IT and Engineering Consulting
Employees: 1,000
Headquarters: Sant Cugat del Vallès, Spain
In Spain: Sant Cugat del Vallès, Barcelona, Madrid and 4 more
Website: between.tech

Good to know if you are moving

The company is headquartered in Sant Cugat del Vallès, near Barcelona, a major tech and industrial hub in Spain.
Open roles span multiple locations across Spain, including Madrid, Barcelona, Gijón, Sevilla, and Tarragona, offering flexibility for relocation.
Many positions require Spanish language skills, but some roles, especially in engineering and IT, may be open to international candidates with strong technical backgrounds.
The company works on projects in sectors like automotive, pharma, energy, and aerospace, providing opportunities to work on complex industrial systems.
Some roles involve travel or on-site work, which may be relevant for candidates interested in field engineering positions.

All open roles at BETWEEN Technology