Staff AI/ML Scientist (Conversational AI)

Location: Hybrid in Barcelona, Spain, with 2 days per week in the office, or fully remote from Spain. Candidates must be eligible to work and live in Spain.

Company

hirify.global provides business sustainability ratings, data analysis, and sustainability scorecards that help companies assess environmental, social, and ethical risks.

What you will do

• Design and test multi-turn, state-aware conversational systems using LLM reasoning loops and multi-agent orchestration frameworks.
• Adapt emerging generative and agentic AI frameworks for enterprise use cases in sustainable procurement, supply chain resilience, and decarbonisation.
• Build, benchmark, and maintain end-to-end AI/ML solutions using Python, MLflow, Azure, Azure ML, Azure Data Factory, and Databricks.
• Lead Conversational AI teams and initiatives, promote AI/ML best practices, and mentor junior team members.
• Work with customers to evaluate needs and recommend solutions that improve customer satisfaction and business value.
• Track AI technology trends and apply advances to hirify.global product and operational challenges.

Requirements

• Master’s or PhD degree in a quantitative discipline such as Statistics, Applied Mathematics, Artificial Intelligence, Computer Science, or Computational Linguistics.
• 8+ years of experience in machine learning and NLP, including 4+ years specializing in Conversational AI in production environments.
• Advanced knowledge of agentic frameworks and experience building autonomous or semi-autonomous agentic systems at scale.
• Experience leading end-to-end AI initiatives from design through implementation and integration, using sound software development practices.
• Experience collaborating cross-functionally with engineers, product managers, and other stakeholders.
• Eligibility to work and live in Spain is required.

Nice to have

• Experience building conversational interfaces for complex enterprise domains such as supply chain, procurement, or financial risk.
• Peer-reviewed publications in leading NLP or AI venues such as ACL, EMNLP, NeurIPS, AAAI, or KDD.

Culture & Benefits

• Flexible working hours and a remote work-from-abroad policy.
• Office and IT equipment support, plus hybrid allowances for electricity and internet.
• Wellness allowance, professional mental health support, private health insurance, dental benefits, and life and accident insurance.
• Learning and development support, peer recognition, employee-led resource groups, and sustainability community activities.
• Meals and transportation vouchers, paid volunteer and personal days, and summer hours in July and August.

Hiring process

• Submit a CV in English and receive a response to the application.
• Interview adjustments are available for candidates who need them.