1 to 25 of 34 Permanent Performance Tuning Jobs in London

based in the UK or US and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities … DevOps, Product, and QA teams to ensure production-grade solutions. Participate in architectural discussions, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 5+ years of experience in Core Java development with a focus ...

reporting Ensuring strong data governance, quality, validation and reconciliation processes Partnering with BI teams to enable effective reporting solutions Contributing to architectural decisions around performance, scalability and infrastructure Identifying and resolving issues to improve platform reliability and efficiency What We Are Looking For 7+ years in software engineering … year hands-on experience with Snowflake Experience working with large-scale enterprise datasets Strong analytical mindset with a clear focus on data integrity and performance Desirable Experience Advanced Snowflake performance tuning and optimisation Python and or Databricks exposure Experience designing full end-to-end data platform architectures ...

life of millions of University students across the globe. In this role, you will apply your Software Engineering experience to enhance system performance and reliability, as well as building internal systems and capabilities that eliminate manual work through automation. You'll be joining our Platforms teams with globally-dispersed … logging systems to identify and respond to incidents Ensure scalability and efficiency of cloud infrastructure and systems to handle traffic and data growth Conduct performance tests to identify and remediate bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review ...

join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like … software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable ...

trusted backend partner for Product and Platform teams. Within 12 months, you will: Confidently own and evolve multiple backend systems. Improve database performance and background job efficiency. Reduce operational risk across TOC integrations. Strengthen CI/CD reliability and deployment confidence. Contribute to longer-term backend architecture improvements … party integrations, ensuring reliable and secure data exchange. Infrastructure Collaboration: Work with the Platform team on AWS-based deployments and CI/CD processes. Performance & Reliability: Optimise background processing and database performance to maintain system stability. Incident Response: Support investigation and resolution of production issues. Cross-Functional Collaboration ...

connectivity, firewalls, and SDN configurations, troubleshooting issues and supporting resilience improvements. Provide 2nd/3rd line support for Windows and Linux systems, managing updates, performance tuning, and configuration consistency. Maintain accurate system and configuration documentation, supporting compliance and governance requirements. Collaborate across teams to improve operational efficiency, automate ...

testable and maintainable code following best practices Participate in code reviews and contribute to improving engineering standards Support production systems, including bug fixing and performance tuning Work within Agile/Scrum delivery teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building ...

transactions and flows Driving projects from inception through design, build, testing and release Core requirements: Strong C#/.NET development experience Advanced SQL skills (performance tuning, complex queries, data modelling) Azure cloud experience (App Services, Functions, Service Bus, DevOps etc.) Experience building highly available, resilient systems Excellent communication ...

Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering ...

reporting, and real-time analytics. Key Responsibilities Design and own end-to-end AI-enabled data architectures supporting investment banking use cases Architect high-performance data storage and retrieval solutions using technologies such as MongoDB , Redis , Elasticsearch and related tools Define best practices across caching , indexing , search optimisation … experience in enterprise technology environments 5+ year's operating in a Technical/Enterprise Architecture capacity Deep expertise in: MongoDB (schema design, scaling, performance tuning) Redis (high-speed caching, distributed access patterns) Elasticsearch (search architecture and indexing strategies) Strong experience embedding AI/ML into enterprise platforms Advanced ...

Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence … critical. You’ll design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance-critical environments and want your work to have real market impact, we’d love to hear from you. The Role Ultra-Low Latency Engineering ...

infrastructure, including servers, storage, networks, and cloud services.* Strong analytical and troubleshooting abilities, with a methodical approach to resolving complex issues.* Ensure the availability, performance, and security of the IT infrastructure.* Oversee/lead infrastructure projects from planning to execution, ensuring timely delivery and adherence to best practices, both … house and with our MSP.* Monitor and manage system performance, identifying and resolving issues proactively.* Collaborate with other MSP IT teams to support business operations and projects.* Develop and maintain infrastructure documentation, including diagrams and procedures.* Implement and manage backup and disaster recovery solutions.* Stay up to date with ...

physical devices, software components, and network infrastructure. * You will develop and execute integration test plans for hardware/software systems. * You will perform functional, performance, and stress testing on integrated systems. * You will Identify and resolve integration issues across hardware, software, and network layers. * You will document and understand … different architectures supporting distributed, real-time systems. * You will understand how to administer Linux based environments, including performance tuning and security hardening. * You will develop and execute shell scripts for automation and system orchestration. * You will understand the systems engineering lifecycle * You will understand changes in CI/ ...

Develop and improve wed frontends using Java and JavaScript delivering responsive, intuitive UI/UX. Model and manage data with MS SQL (Schema design, performance tuning, complex queries). Own the SDLC End to End requirements, solution design, implementation, automated testing, deployment and maintenance - Ideally in Treasury/ ...

writes production grade code. As a Machine Learning Engineer you'll take open-source LLMs (code and general models) and turn them into high-performance software engineer agents using supervised fine tuning and large scale reinforcement learning. This isn't prompt engineering. You'll design and run serious … work hands-on across the full stack: custom PyTorch dataloaders, distributed training (DDP/FSDP), experiment tracking, debugging NCCL issues at 2am, and squeezing performance out of multi-GPU jobs. You'll help design opinionated reward functions that reflect what great engineering actually looks like, not just benchmark scores. ...

innovation Backend Architecture & Development Architect, build, and scale backend services and RESTful APIs Design, optimise, and maintain MongoDB database solutions Improve system reliability, performance, and scalability Resolve complex production issues with robust solutions Implement microservices and modern backend patterns Collaboration & Delivery Partner with Product, Design, and the founder … execution across initiatives Core Technical Expertise You’ll thrive in this role if you have strong experience with: MongoDB (data modelling, indexing, aggregation pipelines, performance tuning) Node.js and the wider JavaScript/TypeScript ecosystem Express.js and/or Fastify RESTful API design and distributed systems AWS or similar ...

logging and alerting, DynamoDB for database management, and AWS Lambda for serverless compute tasks related to project workflows. Implement best practices for environment stability, performance tuning, and security compliance. Produce detailed technical documentation, status reports, and issue logs for ongoing support and knowledge sharing. Communicate effectively with cross ...

deployment processes to ensure high quality and repeatable releases. Provide operational support and incremental enhancements for a 24/7 production environment, contributing to performance tuning and incident response as needed. What we’re looking for Strong software engineering experience writing clean, efficient and well-tested code … with containerisation and orchestration technologies (Docker, Kubernetes) and cloud-aligned engineering patterns. A proactive mindset with a passion for simplifying complex systems, optimising runtime performance and enhancing developer/operational workflows. Nice to have Experience with connectivity protocols like FIX or other financial messaging standards. Prior work on large ...

serves as the primary desktop operating system, and many core infrastructure services are delivered through Windows Server platforms. This role is key to ensuring performance, reliability, and standardisation across the Windows estate. The successful candidate will work to improve, automate, and optimise the infrastructure environment, contributing to deployment strategy … with global technology teams on deployments, issue resolution, and new initiatives Develop and maintain centrally managed automation scripts and repositories Monitor and optimise hardware performance across physical and virtual environments Contribute to documentation, process improvement, and infrastructure design Required Experience & Skills Advanced experience with Microsoft Windows 10/ ...

compute pioneers to lead the charge on next-generation infrastructure for sovereign AI. To support this endeavor, we’re building a high-performance compute operations team in London. Our work will be sensitive, secure and on the most up-to-date high density compute stacks available. Any offer … Support AI model training platforms by maintaining compute resources, optimizing scheduling, and ensuring compatibility with AI frameworks and libraries. •Monitor, analyse, and fine tune performance metrics addressing bottlenecks or inefficiencies. •Develop and maintain automation scripts and tools (e.g., PowerShell, Python, Bash) to streamline operational tasks, monitoring, and reporting. •Document ...

Improve observability using monitoring, logging, and alerting practices. Automate operational workflows to reduce manual intervention and MTTR. Collaborate with engineering teams to improve reliability, performance, and release readiness. Perform capacity planning, performance tuning, and resilience testing. Drive continuous improvements in reliability, operational excellence, and system stability. ...

data processing and pipeline development. Solid experience with SQL , including writing efficient and scalable queries. Hands-on experience with Google BigQuery , including architecture, performance tuning, and cost optimization. Familiarity with cloud-based data tools and modern data ecosystems. Understanding of data modeling, warehousing concepts, and best practices Nice ...

debugging and secure development Experience working in complex or regulated environments is a plus What you’ll be doing: Designing and delivering scalable, high-performance backend features Working across the full SDLC, from design through deployment and optimisation Integrating systems with financial, transactional and market data APIs Supporting database … schema design, performance tuning and automation Why join: Build mission-critical software used by global organisations High ownership and real technical impact Supportive, collaborative engineering culture Clear long-term product vision and growth If you're interested in a short confidential chat, please get in contact, even ...

London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will build and optimise ultra-low latency, high … throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop scalable infrastructure Work across the full software lifecycle ...

technical talent as well as a keen desire to deeply understand our products and services to push our technology forward with respect to functionality, performance, reliability, and scalability. Our team in Search and Recommendations Experience is looking for curious, empathetic, and creative problem solvers with a growth mindset. … match. In this role, you will: Design, build, and maintain Android features for lodging search and shopping across Expedia Group brands, focusing on usability, performance, and reliability. Collaborate with product, design, backend, and data partners to translate requirements into technical solutions, estimates, and delivery plans. Implement clean, testable ...