Quant Developer | Rust | Up to £250k | London

Oho Group; Greater London; On-site; GBP 225,000 - 275,000; Full time

Job summary

OHO Group (Lithuania) in London is seeking a Quant Developer to build high-performance trading systems in Rust and own key parts of the platform.

You will work with a small, ambitious team on production-grade infrastructure across pricing, execution and market data, collaborating closely with traders to solve complex technical problems and shape the engineering direction as the business grows.

Qualifications

• Experience in quantitative development, electronic trading or market making.
• Strong software engineering fundamentals, ideally with experience in Rust, C++ or Python.
• Understanding of trading systems, pricing, execution or market data.
• Comfortable working on performance-critical, production-grade systems.
• Interested in taking greater ownership within a smaller, fast-moving team.
• Keen to work with modern technologies and help shape a growing engineering function.

Responsibilities

• Building and optimising high-performance trading systems in Rust.
• Developing core infrastructure across pricing, execution and market data.
• Working closely with the trading team to solve complex technical problems.
• Taking ownership of key systems and contributing to architectural decisions.
• Improving system performance, reliability and scalability.
• Helping shape the technology as the business continues to grow.

Skills

Quant development

Electronic trading

Market making

Rust

C++

Python

Ownership mindset

Performance optimization

Tools

Rust

C++

Python

Job description

Quant Developer | Rust | High-Performance Trading | London

Want to move from a large bank or trading firm to a start-up where you can take real ownership of the technology?

A fast-growing, recently funded trading technology start-up is looking for an experienced Quant Developer to join its engineering team in London.

The company is building high-performance trading infrastructure across modern financial markets, using Rust at the core of its technology.

It's an opportunity to work on technically demanding systems where performance, reliability and speed are critical.

You'll be joining a small, ambitious team where engineering has a direct impact on the business. They're looking for someone who combines strong software engineering ability with genuine industry experience, and who wants more influence over the systems they build and the direction they take.

Having recently secured significant new investment, the business is entering an exciting stage of growth. For someone coming from a larger bank, hedge fund or trading firm, it's a chance to take the experience they've built in an established environment and apply it somewhere they can have a much bigger impact.

About you

• Experience in quantitative development, electronic trading or market making
• Strong software engineering fundamentals, ideally with experience in Rust, C++ or python
• Understanding of trading systems, pricing, execution or market data
• Comfortable working on performance-critical, production-grade systems
• Interested in taking greater ownership within a smaller, fast-moving team
• Keen to work with modern technologies and help shape a growing engineering function

What you'll be doing

• Building and optimising high-performance trading systems in Rust
• Developing core infrastructure across pricing, execution and market data
• Working closely with the trading team to solve complex technical problems
• Taking ownership of key systems and contributing to architectural decisions
• Improving system performance, reliability and scalability
• Helping shape the technology as the business continues to grow

What's on offer?

• Up to £250k base, and other benefits
• London-based
• Opportunity to work with Rust in a performance-critical environment
• Greater ownership and influence than a typical role in a larger financial institution
• Direct exposure to the trading business and its technical challenges
• Recently funded start-up with ambitious growth plans
• Opportunity to help shape the engineering team and core technology

Quant Developer | Rust | High-Performance Trading | London