Senior AI/ML Engineer

Our client is a global leader in legal research technology, providing access to one of the most comprehensive collections of legal information worldwide. Through advanced AI and data analytics, we’re transforming how legal professionals access, analyze, and use legal data—faster, smarter, and at scale.

If you’re looking to have real impact in a fast-moving, mission-driven environment, this is your opportunity!

We are looking for Mid Level (+3 years of strong experience) and Senior (+5 years of strong experience) profiles.

The candidates need to be located (or open to relocation) Barcelona and open to having a hybrid working modality.

Main responsibilities:

• Design, develop, and productionize scalable systems using technologies such as Python and Flask
• Translate customer requirements into practical, real-world solutions that address business needs
• Collaborate with business stakeholders, engineers, and content teams to identify and deliver high-impact AI-driven products and services
• Implement comprehensive monitoring, testing, and auditing processes to ensure system quality and reliability
• Adhere to best practices in model and data governance, including ethics and compliance standards

Core skills/experience:

• Bachelor’s or Master’s degree in Computer Science, Mathematics, or a related technical field
• 5+ years of experience developing machine learning applications in commercial or research settings
• Skilled in organizing and analyzing complex datasets to extract insights
• Proficient in Python, with experience writing and maintaining unit tests
• Familiar with version control systems, such as Git (and optionally Graphite)
• Hands-on experience using Docker for development and deployment

Nice to have:

• Portfolio projects
• Java knowledge
• Machine learning expertise (NLP )

What's on offer?

• Flexible and friendly work culture
• Hybrid working modality from Madrid or Barcelona
• Collaborative, multicultural team environment
• Mental health and well-being support
• Career growth, leadership mentoring, and ownership of core systems
• Projects with real-world impact in the legal tech space
• Access to innovative tools and a fast-paced, mission-driven environment

Our recruitment process?

• Step 1: Interview with one of our recruiter
• Step 2: Screening call with Tech Lead
• Step 3: Test Home
• Step 4: Technical interview with HM
• Step 5: Narrative & behavior call