Senior Data Scientist (AI)

TL;DR

Senior Data Scientist (AI): Designing and building AI-powered digital twins and agents for decision intelligence platforms, focusing on optimizing real-world outcomes in high-consequence environments. Focus on combining scientific rigor with a business-focused approach to advance AI Agent and Decision Hub capabilities.

Location: Hybrid Working (2 days in our Old Street office, London)

Company

hirify.global is a company established in 2014, building responsible AI for over 350 global customers across various industries, focusing on human-centric AI and real-world impact through its Frontier™ product.

What you will do

• Design and build validated AI agents in high-consequence environments.
• Perform exploratory data analysis, model building, validation, and performance monitoring.
• Lead data science efforts within cross-functional delivery teams, partnering with engineers, designers, and product leads.
• Deeply understand core customer problems to ensure technical solutions drive real value.
• Translate real-world problems into technical strategies and measure model impact with scientific rigor.

Requirements

• Senior-level experience in data science or quantitative research.
• Proficiency in Python and essential libraries (NumPy, Pandas, scikit-learn).
• Familiarity with a deep-learning framework (e.g., TensorFlow, PyTorch).
• Strong foundation in statistics and mathematics.
• Experience across the full data science toolkit, including supervised/unsupervised learning, time-series, Bayesian methods, and model validation.
• A leadership mindset centered on technical excellence, team growth, and a collaborative culture.

Nice to have

• Experience building and evaluating agents using eval-driven development.

Culture & Benefits

• Unlimited Annual Leave policy.
• Private healthcare and dental.
• Enhanced parental leave and flexible working.
• Sanctus Coaching.
• Hybrid Working (2 days in our Old Street office, London).

Hiring process

• Talent Team Screen (30 minutes)
• Technical Interview (90 minutes)
• Principles Interview (45 minutes)