Senior Quant/AI Developer, Global Markets

UBS; Greater London; On-site; GBP 110,000 - 170,000; Full time

Job summary

UBS in London is seeking a Senior Quant/AI Developer to design, develop, and implement quantitative models and analytics across Global Markets. You will help deliver AI-powered systems from idea to production, collaborating with Trading, Structuring and Sales while building robust relationships with IT, Quant, and Risk teams across regions.

The role emphasizes production delivery, strong Python capabilities, and a deep understanding of data fundamentals within a front-office environment, in a

Qualifications

• Ambitious and intellectually curious, combining technical experience with problem solving.
• Proficient in Python with experience delivering production changes to large complex systems.
• Front office quant experience with a track record of production delivery.
• Ability to communicate ideas clearly and build global relationships in the front office.
• Experience with agentic design (harnesses) and MCP servers and related AI/ML Python libraries.
• Strong analytical, problem-solving, and architectural design skills for front-office work.
• Academic background in Quantitative Finance, Mathematics, Physics, Engineering, CS, or related STEM.
• Strong data fundamentals and Python implementations (numpy, polars, scipy).
• Knowledge of AI/ML techniques with production delivery experience.
• Curiosity about using AI to improve workflows with sound judgment and risk awareness.

Responsibilities

• Participate in the design, development, and implementation of quantitative models and analytics across the Global Markets business.
• Design and implement the next generation of AI-powered systems, partnering with Trading, Structuring and Sales from idea generation through to production launch.
• Build and maintain strong working relationships with Trading, Structuring, Sales, Quant, IT, and Risk partners in London and across regions.

Skills

Python

Front office quant

AI/ML libraries

Agentic design

MCP servers

Production delivery

Data fundamentals

Stakeholder comms

Quant finance

STEM background

Education

Quant/Math/Physics/Engineering/CS degree

Tools

MCP servers

Harnesses (agentic design)

NumPy

Polars

SciPy

Job description

Key Responsibilities

Are you excited by the prospect of engineering solutions in across Global Markets? Do you want to design, build and help deliver production systems across the front-office? Are you passionate about building and delivering AI solutions?

We're looking for a Senior Quant/AI Developer to:

• participate in the design, development, and implementation of quantitative models and analytics across the Global Markets business
• play a key role in designing and implementing the next generation of AI-powered systems, partnering closely with Trading, Structuring and Sales from idea generation through to production launch
• build and maintain strong working relationships with Trading, Structuring, Sales, Quant, IT, and Risk partners in London and across regions

Job Type

Full Time

Job Reference #

345157BR

City

London

The team

You'll be working in our Quantitative Analytics team in London - a fast-paced, entrepreneurial environment. We build the tools, models, and workflows that drive the Front Office across asset classes, working side-by-side with them to architect solutions to real problems.

You'll develop models, applications, and workflows within UBS's proprietary cloud-based quantitative analytics platform (ACQA), working closely with Trading, Structuring, Sales, Quant, and IT partners globally. Clean code, curiosity and the ability to build relationships and communicate ideas is crucial to the team delivering across a broad range of problems.

Your Skills And Experience

• an ambitious and intellectually curious individual, keen to combine your technical experience with a clear desire to solve practical problems
• proficient in Python with experience delivering production changes to large complex systems
• previous experience in a front office quant role demonstrating a clear track record of production delivery
• able to communicate your ideas clearly and build strong relationships globally within the front office
• previous experience of agentic design (harnesses), MCP servers, and related AI/ML python libraries
• strong analytical, problem-solving, and architectural design skills, with an ability to operate effectively in a front-office environment
• an academic background in Quantitative Finance, Mathematics, Physics, Engineering, Computer Science, or a related STEM discipline
• strong understanding of data fundamentals and their Python implementations (numpy, polars, scipy)
• strong knowledge of AI/ML techniques with experience delivering related work into production
• You're curious to explore how AI can improve how we build, deliver, and optimize workflows. You do this with sound judgment - validating outputs and aligning with policies, risk standards, and ethical use

About Us

UBS is a leading and truly global wealth manager and the leading universal bank in Switzerland. We also provide diversified asset management solutions and focused investment banking capabilities. Headquartered in Zurich, Switzerland, UBS is present in more than 50 markets around the globe.

We know that great work is never done alone. That's why we place collaboration at the heart of everything we do. Because together, we're more than ourselves. Want to find out more? Visit ubs.com/careers.

Join us

At UBS, we know that it's our people, with their diverse skills, experiences and backgrounds, who drive our ongoing success. We're dedicated to our craft and passionate about putting our people first, with new challenges, a supportive team, opportunities to grow and flexible working options when possible. Our inclusive culture brings out the best in our employees, wherever they are on their career journey. And we use artificial intelligence (AI) to work smarter and more efficiently. We also recognize that great work is never done alone. That's why collaboration is at the heart of everything we do. Because together, we're more than ourselves.

We're committed to disability inclusion and if you need reasonable accommodation/adjustments throughout our recruitment process, you can always contact us.

Disclaimer / Policy statements

UBS is an Equal Opportunity Employer. We respect and seek to empower each individual and support the diverse cultures, perspectives, skills and experiences within our workforce.