Marketing Engineer

NeuralTrust; Barcelona; On-site; EUR 42,000 - 68,000; Full time

Job summary

NeuralTrust, a Barcelona-based startup, seeks a Marketing Engineer to lead the technical side of product launches, create demos, and write tutorials and guides. You will collaborate with product and engineering to explain new features to developers and security teams, and you will present demos at events and webinars.

You should have a degree in CS or related field, hands-on LLM/AI agent experience, and excellent written and spoken English.

Qualifications

• Degree in Computer Science, Software Engineering or a related field.
• Hands-on experience building with LLMs and AI agents.
• Clear writing and speaking skills in English.
• Comfortable presenting and recording demos.

Responsibilities

• Lead the technical side of product launches: demo environments, sample apps and code snippets for each release.
• Build live and recorded demos that show our platform in action, like stopping a prompt injection or governing an agent's tool calls.
• Write technical content: tutorials, integration guides, blog posts and launch announcements.
• Work with product and engineering to understand new features and explain them to developers and security teams.
• Run live demos at events, webinars and customer sessions.
• Build technical pages and interactive experiences for our website.
• Create internal tools, agents and automations that help the marketing team move faster.
• Test new AI tools and frameworks, and share what's worth using with the team.

Skills

LLM/AI agents experience

English writing & speaking

Hacker mindset

Team player

Education

Degree in Computer Science or Software Engineering

Job description

At NeuralTrust, we're looking for a Marketing 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 platform enables large organizations to integrate AI Agents 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

• Lead the technical side of product launches: demo environments, sample apps and code snippets for each release.
• Build live and recorded demos that show our platform in action, like stopping a prompt injection or governing an agent's tool calls.
• Write technical content: tutorials, integration guides, blog posts and launch announcements.
• Work with product and engineering to understand new features and explain them to developers and security teams.
• Run live demos at events, webinars and customer sessions.
• Build technical pages and interactive experiences for our website.
• Create internal tools, agents and automations that help the marketing team move faster.
• Test new AI tools and frameworks, and share what's worth using with the team.

You'll work closely with our product and engineering teams, who build in Go and Python. We value problem-solvers with curiosity and drive, even if you don't check every single box.

• Degree in Computer Science, Software Engineering or a related field.
• Hands-on experience building with LLMs and AI agents (APIs, agent frameworks, MCP).
• Clear writing and speaking skills in English. You can explain a technical concept to a developer and to a CISO.
• Comfortable presenting and recording demos, or eager to learn.
• Interest in security. Knowledge of AI risks such as prompt injection or data leakage is a plus.
• Hacker mentality: you thrive in fast-paced environments, adapt quickly, and love turning ideas into working demos.
• Team player: you share knowledge, give and receive feedback, and enjoy working between engineering and marketing.
• Competitive salary, aligned with your experience and impact.
• High-growth, multicultural, inclusive, and motivated environment.
• Be part of one of the hottest startups in Europe.