Senior Data Scientist

Oxera Study; Greater London; On-site; GBP 100,000 - GBP 125,000; Full time

Job summary

A leading data science firm in Greater London is seeking a Senior Data Scientist to drive impactful projects and deliver data solutions. You will lead complex client engagements, utilize Python to build robust solutions, and mentor junior staff. The ideal candidate has a strong background in machine learning and statistics, with an MSc or PhD in a quantitative field. Exceptional problem-solving skills and a consulting mindset are essential. Join a collaborative environment with a structured career path and diverse team.

Benefits

Direct impact on high-profile projects

Collaborative multinational environment

Structured career progression

Qualifications

• Proven ability to lead projects and communicate complex ideas clearly.
• Consulting mindset with a passion for problem-solving and mentoring.
• Fluency in English is essential; additional languages are a plus.

Responsibilities

• Lead complex client projects from scoping to delivery.
• Build robust, scalable solutions using Python.
• Translate technical insights into clear reports for stakeholders.
• Mentor junior team members in technical standards.
• Support business development through proposals.

Skills

Strong Python skills

Experience with large datasets

Machine learning expertise

Statistics knowledge

Software development principles

Education

MSc/PhD in a quantitative discipline

Job description

For us, "Data Science" is a broad discipline. It’s not just applying machine learning, but also building bespoke software, developing interactive tools, and designing robust data pipelines.

We use the right approach for the problem at hand from cutting‑edge methods to practical, robust solutions to solve our clients' most complex challenges and deliver impactful narratives.

We are looking for a Senior Data Scientist to lead these efforts, blending technical expertise with leadership skills and a sharp consulting mindset

What you’ll do

• Lead complex client projects from scoping to delivery, designing analytical roadmaps and data product architectures.

• Build robust, scalable solutions, not just models, using Python and modern data engineering practices.

• Translate technical insights into clear, persuasive reports and presentations for senior stakeholders.

• Mentor junior team members and contribute to evolving technical standards.

• Support business development through proposals and thought leadership.

What we offer

• Direct impact on high‑profile projects with regulators and global corporations.

• A collaborative, multinational environment with top‑tier economists and data scientists.

• Structured career progression, mobility options, and hands‑on learning opportunities.

What we’re looking for

• Strong Python skills and experience with large datasets, cloud environments, and scalable solutions.

• Expertise in machine learning, statistics, and software development principles.

• Proven ability to lead projects and communicate complex ideas clearly.

• MSc/PhD in a quantitative discipline (or equivalent professional experience).

• Consulting mindset with a passion for problem‑solving and mentoring.

Fluency in English is essential; additional languages are a plus.
Oxera is an equal opportunities employer and values diversity at all levels.