Senior Software Engineer

Senior Software Engineer: Sports BettingUp to £120,000 + Bonus + Excellent BenefitsLondon - 5 Days On-Site | Python | Java | AI | Low Latency | Distributed Systems

Build software where performance, mathematics and real-time decision-making genuinely matter.

We're partnering with a highly technical sports betting business continuing to invest in its engineering function. They're looking for Senior Software Engineers to work on complex backend systems operating across real-time data, quantitative problems and high-performance distributed architecture.

This is an opportunity for engineers who enjoy difficult technical problems rather than simply delivering features or maintaining an existing codebase.

You'll have significant technical ownership, contribute to architectural decisions and work alongside engineers tackling problems around latency, scalability, reliability and large-scale data processing.

The Role

You'll join a highly technical engineering team building and evolving systems used within a quantitative sports betting environment.

You'll work across:

• Designing and building scalable backend services

• Developing primarily with Python and Java

• Building low-latency and high-throughput systems

• Processing large volumes of real-time data

• Developing distributed and event-driven architectures

• Building integrations with external platforms and APIs

• Optimising system performance and reliability

• Solving complex scalability and concurrency problems

• Contributing to system architecture and technical direction

• Working with cloud-native infrastructure and containerised applications

• Applying strong analytical and mathematical thinking to engineering problems

• Working alongside teams using AI and machine learning within the wider technology environment

Technology

Python | Java | GCP | Docker | REST APIs | Distributed Systems | Event-Driven Architecture | Streaming | Real-Time Data | AI/ML

What We're Looking For

We're looking for engineers with strong backend foundations who have worked on technically demanding systems where speed, reliability and scale matter.

You'll ideally have:

• Strong commercial Python experience

• Professional Java experience

• Experience with distributed backend systems

• Experience with real-time or high-throughput applications

• Low-latency engineering experience

• Strong analytical and mathematical problem-solving ability

• Experience with cloud platforms, ideally GCP

• Docker/containerisation experience

• REST API development experience

• Experience with event-driven architecture or messaging

• Exposure to AI, machine learning or AI-enabled systems

• Strong understanding of performance, reliability and scalable architecture

Relevant Backgrounds

Candidates may come from environments such as:

• Sports betting

• iGaming or gambling technology

• Quantitative betting or pricing platforms

• Electronic trading

• Market-data systems

• Low-latency financial technology

• High-performance distributed systems

Candidates from financial markets are particularly relevant where they have experience with FIX Protocol, electronic trading or real-time market-data systems.

A strong mathematical or quantitative background will be highly valuable.

You don't need to tick every box. The team may consider candidates who meet the majority of the technical requirements and can demonstrate strong engineering fundamentals.

This role is 5 days per week in the London office.

Candidates who are immediately available or working shorter notice periods will be strongly preferred.

What's In It For You?

• Up to £120,000 depending on experience

• Annual performance bonus

• Private healthcare and dental

• Pension

• 25 days' holiday + bank holidays

• Wellness and gym membership

• Complimentary breakfasts

• Regular team lunches

• Excellent office facilities

• Significant technical ownership

• Work on genuinely difficult engineering problems

If you're a Senior Software Engineer with strong Python or Java experience and a background in low-latency, real-time or quantitative systems, get in touch for a confidential conversation.

RSG Plc is acting as an Employment Agency in relation to this vacancy.