About the role
We are looking for a Senior AI Software Engineer to join an international Artificial Intelligence & Innovation team working on advanced enterprise software solutions in a highly regulated industrial environment.
In this role, you will design, build, and maintain full‑stack applications that combine modern software engineering with applied AI capabilities , including LLM integrations , RAG patterns , agentic workflows , secure APIs , and cloud‑native services .
This is a hands‑on software engineering role with a strong focus on building reliable , secure and scalable applications . You will collaborate closely with teams in Spain and the US , contributing to AI‑enabled products built on top of an existing internal AI core platform .
If you enjoy working across frontend , backend , cloud , and AI‑powered applications , and you are motivated by complex enterprise environments where quality , security , and compliance really matter, this could be a great fit.
What you’ll do
- Design, develop, support, and maintain enterprise‑grade software applications based on business, engineering, and regulatory requirements
- Build AI‑enabled applications integrating LLMs, RAG patterns, vectorization, and agentic AI capabilities into real business workflows
- Develop scalable backend services and REST APIs using Python to support AI features, product workflows, and enterprise applications
- Design and implement agentic AI applications capable of interpreting context, planning actions, calling tools or services, and automating multi‑step workflows
- Integrate AI capabilities into SaaS‑style applications through secure and robust service layers
- Work with cloud‑native services across Azure, GCP, AWS, or similar environments
- Containerize services using Docker and contribute to CI/CD delivery practices
- Collaborate with product, UX, data engineering, and international engineering teams to deliver end‑to‑end solutions
- Apply secure coding practices, software quality standards, and troubleshooting best practices
- Participate in Agile / Scrum ceremonies and contribute to a collaborative engineering culture
- Provide technical leadership as a senior individual contributor, contributing to architecture, code quality, best practices, and mentoring
Qualifications
- 6+ years of experience in software development
- Strong proficiency in Python
- Experience building scalable backend services and REST APIs
- Experience with frontend development using Angular, React, Svelte, TypeScript, or similar technologies
- Previous experience building full‑stack or SaaS‑style applications
- Experience integrating LLMs/Generative AI into cloud‑based applications
- Knowledge of modern AI patterns such as RAG, vector search, LLM orchestration, or agentic workflows
- Experience working with cloud environments such as Azure, GCP, AWS, or similar
- Experience with Docker and containerized services
- Good understanding of software architecture, clean code, secure development, and engineering best practices
- Experience working in Agile / Scrum environments
- Strong problem‑solving skills, attention to detail, and excellent troubleshooting mindset
- Fluent in English and Spanish
- Experience building agentic AI systems that integrate with APIs, tools, or external services
- Experience with vector databases such as Milvus or similar technologies
- Database experience with MongoDB and relational databases such as MS SQL or Oracle
- Experience with Kubernetes or container orchestration platforms
- Experience with Azure CI/CD automation or similar CI/CD tools
- Knowledge of data modeling, domain‑driven design, or test‑driven development
- Experience supporting testing activities or improving automated testing practices
Benefits
- Hybrid model – up to 50% remote work annually
- International collaboration with teams in Spain and the US
- People first – diverse and inclusive culture in an international environment
- Work on applied AI solutions in a real enterprise software environment
- Contribute to full‑stack applications combining frontend, backend, cloud, and AI capabilities
- Be part of an Artificial Intelligence & Innovation team working across Spain and the US
- Join a team where curiosity, ownership, collaboration, and new ideas are highly valued
- High team stability and collaborative culture
- €1200 per year training budget and continuous learning opportunities
- Private health insurance and benefits package
- Flexible working hours and hybrid model
- Wellhub: fitness, wellness, and mental health support
- Football and paddle tennis teams sponsored by Capitole
- Team buildings, global events, and strong tech communities
Information Security Notice
- The employee will have access to confidential information related to Capitole and the assigned project.
- Compliance with internal security and information protection policies is mandatory.
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