We are looking for a Senior Full Stack Software Developer to help us scale AI assets and develop innovative Retrieval-Augmented Generation (RAG) products.
About the role
In this role, you will work at the intersection of cutting-edge LLMs, intelligent agents, and application development, contributing directly to the future of AI-driven solutions. You will be responsible for developing scalable backend services, building intuitive frontend interfaces, and enhancing our Document Understanding product.
What we’re looking for:
- Technical Mastery: Senior expertise in Full Stack development combining Python (backend) and React.Js / Node.Js (frontend), along with containerization using Docker.
- AI & Innovation: Strong understanding of Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and agentic architectures. Proven experience with LangChain is highly preferred.
- Cloud & Infrastructure: Familiarity with Cloud environments (Amazon AWS, Azure) and AI model deployment/optimization.
- Soft Skills & Language: Fluency in English (mandatory for our international environment) combined with excellent communication, adaptability, problem-solving, and teamwork skills.
Location: Hybrid Model - Barcelona
Sector: IT / Artificial Intelligence & Software Development
Why join this project?
People first – inclusive, diverse, and international culture.
Work with cutting-edge technology on global-scale products.
Clear opportunities for career progression and continuous development.
Collaborative teams with a strong sense of belonging.
Access to learning resources and development programs.
Competitive compensation.
Private health insurance & benefits (according to region).
Flexible working environment and hybrid model.
Wellness and mental-health initiatives.
Team-building activities and global community events.
Want to know more about us? Click here and discover all the details.
Find out what people are saying about us on Glassdoor Reviews.
We know that not every candidate will meet 100% of the requirements. If your profile doesn’t match perfectly but you believe you can add value, we would still love to hear from you!
Ready for the challenge? Apply now and be part of a global digital leader driving innovation and transformation.
Empowering People, Unlocking Innovation.
The employee will adhere to information security policies:
- Will have access to confidential information related to Capitole and the project they are working on.
- Must comply with the security policies and internal policies of the company and the client.
- Must sign an NDA.
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