Senior Data Scientist

Oxera Consulting group; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading consulting firm in the UK is seeking a Senior Data Scientist to lead complex client projects and build scalable solutions. The ideal candidate possesses strong Python skills, expertise in machine learning and statistics, and a proven ability to communicate complex ideas. You will mentor junior team members and support business development while working in a collaborative environment. A MSc/PhD or equivalent experience in a quantitative discipline is required. This position offers opportunities for career progression and direct impact on high-profile projects.

Benefits

Direct impact on high-profile projects

Collaborative multinational environment

Structured career progression

Qualifications

• Experience with large datasets and cloud environments.
• Proven ability to lead projects and mentor team members.

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.
• Support business development through proposals.

Skills

Strong Python skills

Machine learning expertise

Statistics knowledge

Software development principles

Communication skills

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.