AI Engineer

NeuralTrust; Barcelona; Presencial; EUR 70.000 - 90.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Mentorship and growth opportunities

Descripción de la vacante

NeuralTrust in Barcelona is seeking an AI Engineer to design, build and optimize AI-driven components of our platform, working with state-of-the-art LLMs and production-ready models.

You will collaborate with backend and DevOps, develop training pipelines, and contribute to a secure, measurable AI stack in a fast-growing, multicultural startup.

Formación

• Experience with Python and ML/AI frameworks.
• Hands-on experience with LLMs or generative AI.
• Familiarity with NLP concepts and vector databases.
• Knowledge of data processing pipelines and MLOps practices.
• Strong algorithms, statistics, and applied ML foundations.

Responsabilidades

• Design, build, and optimize AI-driven components of our platform.
• Work with state-of-the-art LLMs and fine-tune models for production use.
• Develop pipelines for training, evaluation, and deployment of models.
• Collaborate with backend and DevOps teams to integrate AI into scalable systems.
• Research, prototype, and experiment with the latest AI/ML techniques.
• Write clean, efficient, and well-documented code.
• Contribute to internal knowledge sharing through documentation and technical articles.
• Stay ahead of the curve in the rapidly evolving AI ecosystem.

Conocimientos

Python

Go

Team collaboration

Problem-solving

Adaptability

Herramientas

PyTorch

TensorFlow

NLP concepts

Vector databases

Retrieval-augmented generation

MLOps

Data processing pipelines

Descripción del empleo

At NeuralTrust, we’re looking for an AI Engineer to take our company to the next level. Join us!

About NeuralTrust

We’re a Barcelona-based startup building the future of AI and Agents security. Our SaaS platform enables large organizations to integrate generative AI into their products and services in a secure, reliable, and measurable way.

Backed by leading European investors and collaborating with top Spanish universities, NeuralTrust operates at the intersection of AI innovation, cybersecurity, and enterprise transformation.

As generative AI reshapes industries, security and trust become board-level priorities. At NeuralTrust, we ensure organizations can adopt AI confidently and responsibly.

What You Will Do

• Design, build, and optimize AI-driven components of our platform.
• Work with state-of-the-art LLMs and fine-tune models for production use.
• Develop pipelines for training, evaluation, and deployment of models.
• Collaborate with backend and DevOps teams to integrate AI into scalable systems.
• Research, prototype, and experiment with the latest AI/ML techniques.
• Write clean, efficient, and well-documented code.
• Contribute to internal knowledge sharing through documentation and technical articles.
• Stay ahead of the curve in the rapidly evolving AI ecosystem.

We use Go and Python in the backend, and Python is central to our AI work. We value problem-solvers with curiosity and drive, even if you don’t check every single box.

• Strong experience with Python and ML/AI frameworks (e.g., PyTorch, TensorFlow).
• Hands-on experience with LLMs, embeddings, or generative AI.
• Experience with NLP concepts, vector databases, and retrieval-augmented generation.
• Knowledge of data processing pipelines and MLOps practices.
• Hacker mentality: you thrive in fast-paced environments, adapt quickly, and love turning ideas into working systems.
• Strong foundation in algorithms, statistics, and applied machine learning.
• Team player: you share knowledge, give and receive feedback, and enjoy collaborating across disciplines.
• Competitive salary, aligned with your experience and impact.
• High-growth, multicultural, inclusive, and friendly environment.
• Mentorship and support to advance your AI expertise.
• Be part of one of the hottest startups in Barcelona.