Senior Software Engineer

Senior Python Software Engineer

Up to £120,000

London | Python | Java | Cloud | Real-Time Distributed Systems | Bonus & Excellent Benefits

Are you an experienced backend engineer who enjoys solving complex technical challenges in high-performance, real-time environments?

We're partnering with an innovative technology business that's investing heavily in its engineering capability as it continues to scale. They're looking for a Senior Software Engineer to join a collaborative team developing highly available, cloud-native platforms that process large volumes of real-time data.

This is an opportunity to work on technically challenging systems where performance, scalability and reliability are critical. You'll have the chance to influence architecture, contribute to technical decision-making and work alongside talented engineers in a fast-paced environment.

The Role

You'll play a key role in designing and developing modern backend systems that process live data, integrate with external platforms and support business-critical applications.

Responsibilities include:

• Designing and developing scalable backend services using Python and Java
• Building cloud-native, event-driven applications
• Developing integrations with third-party platforms and APIs
• Designing and optimising real-time data processing pipelines
• Improving application performance, resilience and scalability
• Working closely with technical stakeholders to deliver high-quality software
• Contributing to infrastructure, deployment and continuous improvement initiatives

Technology

You'll be working with a modern engineering stack including:

• Python
• Java
• Google Cloud Platform (GCP)
• Docker
• REST APIs
• Event-driven architecture
• Streaming data
• Distributed systems
• Real-time data processing

About You

We're looking for engineers with experience in:

• Commercial Python development
• Java development
• Cloud platforms (GCP preferred, although AWS or Azure experience is also valuable)
• Docker and containerised applications
• REST API development
• Event-driven or distributed systems
• Real-time or high-performance backend applications
• Designing scalable data pipelines

Desirable Experience

Experience working within high-performance, highly transactional environments would be advantageous, including:

• Financial services or electronic trading platforms
• Sports betting, iGaming or wagering technology
• Trading or market data systems
• Low-latency applications and streaming architectures
• FIX Protocol or electronic trading integrations (particularly for candidates from financial services)

What's on Offer?

• Competitive salary based on experience (Up to £120,000)
• Annual performance bonus
• Private healthcare and dental cover
• Pension
• 25 days' holiday plus bank holidays
• Wellness and gym membership
• Excellent office facilities, including complimentary breakfasts and regular team lunches
• A collaborative, engineering-led culture where you'll have genuine ownership and the opportunity to make a real impact

If you're looking for an opportunity to work on complex backend systems in a modern engineering environment, we'd love to hear from you.

Apply now or get in touch for a confidential discussion.

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