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Principal Data Scientist I

London
Posted 13 days ago
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Senior Data Science Role at Cirium Propulsion Labs – Principal Data Scientist

About the Business

At Cirium, our goal is to keep the world connected. We are the industry leader in aviation analytics, helping customers understand the past, present, and predict the future. Our mission is to transform the aviation industry by enabling airlines, airports, travel companies, tech giants, aircraft manufacturers, financial institutions, and more to accelerate their own digital transformation.

About Our Team

Propulsion Labs is Cirium’s innovation group, focused on tackling complex, high-impact problems in aviation analytics. We thrive in small, collaborative teams, balancing autonomy, learning, and inclusive collaboration as we explore ideas, test solutions, and scale products that deliver meaningful value to customers.

About the Role

As a Principal Data Scientist, you will be a senior individual contributor, driving technical leadership while shaping best practices across the data science community. You’ll partner with product, engineering, and business teams to design and deliver data-driven solutions. The role blends technical leadership, collaboration, and hands-on development to address pivotal challenges in aviation analytics.


Responsibilities

  • Act as a technical authority in advanced analytics, machine learning, and generative AI, defining and refining scalable, robust solutions
  • Offer thought leadership on emerging technologies and methodologies for aviation-specific applications
  • Mentor and coach data scientists, fostering continuous learning and technical excellence
  • Collaborate with product managers, engineers, and domain experts to ensure alignment between data science initiatives and business goals
  • Translate complex technical insights into clear, actionable recommendations for stakeholders
  • Demonstrate leadership by coding, modelling, and refining solutions first-hand
  • Design, prototype, and validate cutting-edge approaches to high-impact use cases
  • Partner with engineering teams to deploy models into production

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I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

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Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

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Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

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Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

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Requirements

Technical Experience

  • Strong experience with large-scale, complex, real-world datasets, ideally within aviation or a related industry
  • Expertise in data wrangling and feature engineering, and the ability to build resilient data pipelines

Advanced Analytics Proficiency

Select expertise from these domains, with a strong focus on at least one:

  • Predictive modelling on tabular data
  • Machine learning, including deep learning
  • NLP (Natural Language Processing) and large language models
  • Generative AI pipelines
  • Simulations
  • Graph-based models
  • Time-series forecasting
  • Geospatial modelling
  • Causal inference
  • Reinforcement learning
  • Optimisation algorithms
  • Anomaly detection

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Practical Deployment

Proven ability to deploy—or successfully partner with teams to deploy—customer-facing machine learning systems into production

Collaboration & Communication

  • Experience collaborating across domains and translating complex technical concepts for non-technical audiences
  • Commitment to fostering diverse, inclusive teams

Benefits

Your journey at Cirium is supported by our dedication to holistic well-being and career growth. Benefits vary by country—access yours. Learn more about our culture, accessibility efforts, and Candidate Privacy Policy, including our inclusive hiring practices.

(Note: Avoid scams. We never request money or personal banking details from applicants.)


Equity & Inclusion Statement An equal opportunity employer: qualified candidates will be considered without regard to race, color, creed, religion, sex, national origin, citizenship, disability, protected veteran status, age, marital status, sexual orientation, gender identity, or other legally protected characteristics.

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Skills

Advanced Analytics
Machine Learning
Generative AI
Data Wrangling
Feature Engineering
Data Pipelines
Predictive Modelling
Deep Learning
NLP
Large Language Models
Time-Series Forecasting
Geospatial Modelling
Causal Inference
Reinforcement Learning
Optimisation
Anomaly Detection

Location

London, England, United Kingdom

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