Senior Python Software Engineer Up to 120,000 London | Python | Java | Cloud | Real-Time Distributed Systems | Bonus & Excellent BenefitsAre 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 RoleYou'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 JavaBuilding cloud-native, event-driven applicationsDeveloping integrations with third-party platforms and APIsDesigning and optimising real-time data processing pipelinesImproving application performance, resilience and scalabilityWorking closely with technical stakeholders to deliver high-quality softwareContributing to infrastructure, deployment and continuous improvement initiativesTechnologyYou'll be working with a modern engineering stack including:PythonJavaGoogle Cloud Platform (GCP)DockerREST APIsEvent-driven architectureStreaming dataDistributed systemsReal-time data processingAbout YouWe're looking for engineers with experience in:Commercial Python developmentJava developmentCloud platforms (GCP preferred, although AWS or Azure experience is also valuable)Docker and containerised applicationsREST API developmentEvent-driven or distributed systemsReal-time or high-performance backend applicationsDesigning scalable data pipelinesDesirable ExperienceExperience working within high-performance, highly transactional environments would be advantageous, including:Financial services or electronic trading platformsSports betting, iGaming or wagering technologyTrading or market data systemsLow-latency applications and streaming architecturesFIX 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 bonusPrivate healthcare and dental coverPension25 days' holiday plus bank holidaysWellness and gym membershipExcellent office facilities, including complimentary breakfasts and regular team lunchesA collaborative, engineering-led culture where you'll have genuine ownership and the opportunity to make a real impactIf 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.