Senior Principal Data Scientist

LexisNexis; Greater London; Hybrid; GBP 85,000 - 105,000; Full time

Job summary

An aviation analytics leader is seeking a Senior Principal Data Scientist to lead technical initiatives and mentor a team in applying advanced analytics. The role encompasses hands-on coding, developing customer-centric solutions, and deep expertise in data mastery, predictive modeling, and machine learning frameworks. This position offers a collaborative environment focused on innovation and growth, ideally suited for those passionate about transforming aviation industry challenges into actionable insights.

Benefits

Generous holiday allowance

Health screening and private medical benefits

Life assurance

Contributory pension scheme

Electric Vehicle Scheme

Qualifications

• Experience with advanced analytics, machine learning, and generative AI.
• Expertise in data wrangling and scalable data pipelines.
• Experience deploying customer-facing production ML systems.

Responsibilities

• Provide technical leadership in advanced analytics.
• Mentor data scientists and foster a culture of learning.
• Lead hands-on coding and model development for impactful solutions.

Skills

Python

SQL

PySpark

Predictive modeling

Deep Learning NLP

Feature engineering

Job description

Data, Research & Analytics
Senior Principal Data Scientist

At Cirium our goal is to keep the world connected. We are the industry leader in aviation analytics; helping our customers understand the past, present, and predicting what will happen tomorrow. Our mission is to transform the aviation industry by enabling airlines, airports, travel companies, tech giants, aircraft manufacturers, financial institutions and many more accelerate their own digital transformation. You can learn more about Cirium www.cirium.com

About the Team

Propulsion Labs is Cirium’s innovation group, focused on solving complex, high impact problems in aviation analytics. We work in small, collaborative teams to explore ideas, test solutions, and scale products that deliver meaningful value to customers. Our environment supports autonomy, learning, and inclusive collaboration.

Programming: Python, SQL, PySpark

Frameworks: PyTorch , LangChain

About the Role

As a Senior Principal Data Scientist , you will contribute deep technical expertise while helping shape best practices across the data science community. This is a senior individual contributor role with strong influence through mentorship, collaboration, and technical leadership. You will work closely with partners across product, engineering, and the business to design and deliver data driven solutions.

We welcome candidates from a range of backgrounds and experiences who are excited to apply advanced analytics to real world problems.

Responsibilities:

Technical Leadership Act as the go-to expert for state-of-the-art advanced analytics, machine learning, and generative AI. Define and evolve best practices for complex modeling and design problems, ensuring scalability, robustness, and performance. Provide thought leadership on emerging technologies and methodologies relevant to aviation analytics.

Mentorship & Collaboration Mentor and coach data scientists, fostering a culture of continuous learning and technical excellence. Collaborate closely with product managers, engineers, and domain experts to align data science initiatives with business objectives . Influence strategic decisions by translating complex technical insights into actionable recommendations.

Hands-On Development Lead by example through hands-on coding and model development. Design, prototype, and validate innovative solutions for high-impact problems. Partner with engineering teams to deploy models into production environments.

Domain Expertise Leverage deep knowledge of aviation, travel, or related industries to inform modelling approaches and deliver customer-centric solutions. Stay ahead of industry trends impacting data-driven products.

Requirements:

Data Mastery Comfortable working with large, complex, real-world datasets, preferably aviation-related . Expertise in data wrangling, feature engineering, and scalable data pipelines.

Outstanding Depth Experience: in at least one area, with experience across several (in approximate order of relevance):

Predictive modelling over tabular data, Deep Learning NLP + LLMs, GenAI agent pipelines Simulations, Graph-based models, Time-series forecasting Geospatial modelling, Causal inference, Reinforcement learning, Optimization problem and/or Anomaly detection.

Deployment Experience Proven track record of deploying or partnering on customer-facing production ML systems .

Working for you:

We know that your wellbeing and happiness are key to a long and successful career. These are some of the benefits we are delighted to offer:

Generous holiday allowance with the option to buy additional days

Health screening, eye care vouchers and private medical benefits

Life assurance

Access to a competitive contributory pension scheme

Save As You Earn share option scheme

Travel Season ticket loan

Electric Vehicle Scheme

Maternity, paternity and shared parental leave

Employee Assistance Programme

Additional location(s): London

We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location.

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We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.