Founding AI Engineer – New Products

Location: Barcelona, Spain; hybrid workplace

Company

A digital revenue protection platform helps more than 1,300 brands combat counterfeits, piracy, impersonation, and distribution abuse using AI and large-scale data.

What you will do

• Research technical feasibility and turn product ideas into working prototypes within days using AI-assisted development and language, vision, and voice models.
• Run prototypes on real customer data and connect them to large internal datasets and external APIs.
• Evaluate data sources, platform APIs and terms, model options, accuracy, and cost per check in concise go/no-go assessments.
• Decide with the team whether to build, partner, or license solutions.
• Support market launch and validation, including stakeholder discussions on architecture, data, and security.
• Share practical AI learnings across the company.

Requirements

• 4+ years of experience building production software, including recent hands-on experience shipping products based on large language models, such as agents, tool use, retrieval, and evaluations.
• Strong Python skills with comfort across backend development, data pipelines, and rapid frontend work.
• Daily, fluent use of AI coding tools such as Claude Code, Cursor, or similar, with sound judgment about demo-ready versus customer-ready code.
• Experience integrating third-party APIs and messy data sources, including headless browsers and queues.
• Cloud fundamentals with AWS or GCP, container experience, and sufficient security and privacy knowledge to handle customer data under GDPR.
• Comfort working in short cycles and abandoning prototypes when the data does not support them.
• Strong written and spoken English is required.

Nice to have

• Spanish language skills.
• Background in cybersecurity, fraud, threat intelligence, trust and safety, or brand protection.
• Experience with image, video, or audio models, deepfake detection, or adversarial machine learning.
• Experience launching a product from zero to one, including a startup, a side project with real users, or an internal company product.

Culture & Benefits

• Friendly, diverse, and international working environment with a hybrid model and flexible start times.
• Private health insurance fully covered by the company.
• 23 working days of annual leave plus local public holidays.
• Indefinite employment contract, reduced hours on Fridays, and reduced hours every weekday during August.
• Flexible compensation tax relief, gym discounts, referral bonuses, fresh fruit and refreshments at the office, and monthly after-work and internal learning events.

Hiring process

• Submit an application; shortlisted candidates will be contacted for an interview.