101 to 125 of 267 Performance Tuning Jobs in London

improve team capability across C#/.NET, OpenShift, MongoDB, SQL, messaging, platform engineering and modern engineering practices. Ensure appropriate unit, integration, contract, regression, performance and system testing is applied, and support UAT, release preparation, cutover and early‐life support. Liaise with business users, methodology teams, delivery managers, support teams … patterns, including contract‐first API design, versioning, validation, error models and backward compatibility. Strong document database knowledge, preferably MongoDB, including schema design, indexing, aggregation, performance tuning, consistency trade‐offs and operational considerations. Strong relational database and SQL skills, including design, optimisation and data warehouse interaction. Strong knowledge ...

workloads and high-availability services, with a focus on resilience, zero-downtime deployment approaches, and operational excellence. Establish and enhance monitoring, logging, alerting, and performance management practices for business-critical digital products and AI services. Collaborate closely with software engineers, platform engineers, AI engineers, and product teams to troubleshoot … scripting or programming skills in at least one modern language such as Python, Go, Ruby, JavaScript, or similar. Experience with monitoring, logging, alerting, and performance tuning for production systems. Ability to troubleshoot both application and infrastructure issues in complex distributed environments. Strong understanding of software quality, security, automation ...

/or database management. The Cboe Site Reliability Engineering team is a highly skilled unit responsible for platform engineering, configuration management, implementation, capacity planning, performance tuning, analysis, troubleshooting, reporting, and process automation. This position is instrumental in support of both Cboe’s European markets and Cboe's follow … operational oversight to sustain resiliency and high availability of critical business operations. Monitor production, disaster recovery, and certification systems for issues. Analyze and optimize performance of real-time trading platforms. Operate and maintain low-latency bare-metal infrastructure, including hardware health, Linux OS tuning, and kernel-bypass networking ...

solutions within a complex enterprise environment. Essential Skills Strong Oracle PL/SQL development experience. IBM DataStage ETL development expertise. Advanced SQL development and performance tuning skills. Data warehousing and data integration experience. Experience working with large datasets in enterprise environments. Strong analytical and problem-solving skills. Desirable ...

using HTML, CSS, JavaScript frameworks Experience with Test Driven Development (TDD)/Behavior Driven Development Experience with cloud platforms and container technologies Experience with performance tuning and system optimization Exposure to agile methodologies such as CI/CD, Application Resiliency, and Security Adaptability to changing project requirements ...

leverage terabytes of data.Ability to analyse technical requirements and design new architectures, data models, and ETL strategies.Expertise in database design, complex T-SQL programming, performance tuning, and index analysis.Hands-on experience with cloud-based relational and non-relational databases.Facilitate discussions among developers to exchange ideas and introduce innovative ...

evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health.Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns.Partner with Security teams to ensure our platforms meet compliance, security, and risk‐management expectations.Lead seamless handovers from project delivery ...

deployments. · Security hardening – lead security-posture reviews, implement GuardDuty, CloudWatch and IAM best practices. · SRE & monitoring – uphold SLAs through observability stacks, proactive alerting and performance tuning of distributed systems. · Collaboration & enablement – automate repetitive tasks, mentor developers and champion DevSecOps best practice across teams. · Policy & audit ownership - steward ...

SpringBoot skills. Experience of developing and deploying on Unix or Linux. Hands‐on experience of using the Kafka ecosystem. Experience of profiling and performance tuning. Experience of Behaviour‐Driven and Test‐Driven development principles and skills. Experience of Public Cloud development. Desirable Skills Working in an Agile development team. ...

Hands‐on SpringBoot skills. Experience developing and deploying on Unix or Linux. Hands‐on experience of using the Kafka ecosystem. Experience of profiling and performance tuning. Experience of Behaviour‐Driven and Test‐Driven development principles and skills. Experience of Public Cloud development. Soft Skills Ability to motivate those ...

Join Barclays as a Low Latency Developer and become part of a technology team responsible for building and enhancing high performance trading systems that support critical business activity across our markets platform. This role is focused on the ongoing development and optimisation of a key platform supporting algorithmic trading … Latency Developer you must have the following essential skills : Low latency and advanced Java knowledge (lock free patterns, zero allocation development, performance tuning). OS and network tuning knowledge and hard on experience (mechanical sympathy). Working with low latency messaging (protocols, middleware). Some other highly ...

solutions using Azure Databricks and Azure Data Factory Design and optimize data pipelines for processing large volumes of data (multi-million records) with high performance Participate in customer discussions, requirement analysis, and technical solution design Ensure code quality, performance tuning, and adherence to best practices throughout development … Azure Databricks development, including efficient handling of large datasets Strong working knowledge of Azure Data Factory for building complex ETL workflows Experience with performance optimization of data pipelines and distributed processing setups Proficiency in Scala development (hands‐on experience highly desirable) Solid understanding of Azure services relevant to data ...

maintenance of resilient and secure cloud-based solutions.Define and implement standardised patterns, practices, and tools to support the development lifecycle.Ensure platforms are optimized for performance, reliability, and scalability.Cloud OptimizationContinuously review and optimize cloud resources for cost efficiency and performance improvements.Ensure solutions adhere to best practices for security, compliance … Infrastructure as Code (IaC), CI/CD, and containerization.Experience managing and optimizing non-production environments to ensure stability and security.Expertise in cost optimization and performance tuning for cloud environments.Exceptional troubleshooting skills, with experience in 4th-line support for critical applications.Strong leadership and team-building skills, with experience ...

building cloud-native microservices, Python preferred, though strong experience in another language works too!Systems at scale - You have built distributed architectures and understand performance tuning and observability, on top of solid fundamentals in data structures, algorithms and system designYou strive for simplicity - You build systems that … best parts of the year - Here is what the last one looked like.BenefitsMarket-competitive salary, benchmarked against your function and reviewed every yearAnnual performance bonus, linked to company performance and your contributionShare options, a real stake in the company and a share in the future you buildPrivate medical ...

building cloud-native microservices, Python preferred, though strong experience in another language works too! Systems at scale - You have built distributed architectures and understand performance tuning and observability, on top of solid fundamentals in data structures, algorithms and system design You strive for simplicity - You build systems that … year - Here is what the last one looked like. Benefits Market-competitive salary , benchmarked against your function and reviewed every year Annual performance bonus , linked to company performance and your contribution Share options , a real stake in the company and a share in the future you build Private ...

involve working closely with delivery teams and end‐client stakeholders to develop, optimise, and support business‐critical Oracle‐based systems, with particular emphasis on performance, stability, and production support. Responsibilities Deliver Oracle PL/SQL development contributing across the full SDLC from requirements through to release and support. Build … production environments, including incident investigation, root‐cause analysis, defect fixes, and controlled releases in line with agreed SLAs. Analyse and improve database and application performance, with exposure to query optimisation, execution plans, indexing, and performance diagnostics. Work closely with project teams, client stakeholders, and QA to deliver high ...

researchers to enterprises running the world’s most compute-intensive workloads. We deliver on-demand and private GPU infrastructure to teams who treat performance as a requirement, not a feature. We’re a tight-knit, fast-moving team working at the cutting edge of AI cloud infrastructure. We practise … more interested in how you think and work than in a perfect CV. You’ll likely come from an HPC, AI infrastructure, or high-performance cloud background and bring a combination of the following: Proven experience in HPC or AI software stack design and delivery at scale — including workload ...

better future. Through our recruitment, career development and employee-focused programming, we are committed to fostering a welcoming and inclusive work environment where high-performance talent of diverse backgrounds, experiences, and perspectives can build careers within this exciting and growing industry.Job DescriptionSummaryAres is seeking an Assistant Vice President, Senior … microservices-based architectures. Contribute to technical roadmaps and platform modernization initiatives. Evaluate new technologies, frameworks, and development patterns. Ensure solutions meet requirements for scalability, performance, resiliency, security, and maintainability. Application Development & Technology Delivery Develop capabilities across credit deal management platforms, portfolio management solutions, credit analytics platforms, workflow automation solutions ...

ownership of solution delivery from specification through deployment and ongoing optimisation. Review code and ensure engineering quality, maintainability, security, and performance. Support complex troubleshooting, performance tuning, and root‐cause analysis. AI‐Native Engineering Lead adoption of AI‐assisted development tools and agentic AI workflows. Apply Spec‐Driven Development … architecture and operational excellence. Strong database design and optimisation experience. Experience with relational and NoSQL databases. Understanding of complex data flows, integration architectures, and performance optimisation. Practical experience using AI‐assisted engineering tools. Strong AI literacy and understanding of agentic AI workflows. Experience reviewing and validating AI‐generated code ...

deliver scalable solutions Design and enhance data pipelines, reporting solutions, and operational tooling Support and improve critical business applications and databases Contribute to performance tuning, automation, and continuous improvement initiatives Collaborate with development teams across the wider technology function Requirements Strong commercial experience working with SQL and relational ...

replication strategies and partitioning models. Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions). Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning. Manager cluster operations: node additions/decommissions, repairs (node ...

Power BI, and Real-Time Intelligence — or comparable modern data platforms such as Databricks.Understanding of enterprise-grade non-functional requirements — high availability, disaster recovery, performance tuning, security, resilience, and cost optimisation — across both mission-critical databases and analytics platforms (including Fabric capacity sizing and workload/cost management ...

design, replication strategies and partitioning models.Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions).Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning.Manager cluster operations: node additions/decommissions, repairs (node tool), backups ...

maintain C++ and Java services supporting FX matching and trading workflows.* Own technical delivery for key platform components, ensuring alignment with LSEG architectural principles, performance standards, and operational controls* Build and evolve low‐latency, high‐availability systems handling high message volumes and time‐critical processing.* Ensure systems meet … across production, QA, and client environments, including root‐cause analysis of cross‐system failures.* Improve code quality and maintainability through clean design, automated testing, performance tuning, and controlled refactoring.* Integrate and manage dependencies on messaging platforms, data distribution systems, and upstream/downstream market infrastructure.* Evaluate and adopt ...

influence the design of secure, scalable, and resilient infrastructure while cultivating top engineering talent. What You’ll Do: Architect and design scalable, resilient, high‐performance backend systems and platforms in AWS, prioritizing reliability, security, and cost efficiency. Contribute hands‐on to key initiatives—including design reviews, prototyping, coding, performance tuning, and debugging—typically 30% of your time, while mentoring engineers and establishing high standards. Lead cross‐team technical initiatives; drive design forums, establish engineering guardrails, and ensure high‐quality delivery via code reviews and automation. Partner closely with Product, Design, Data Science, and Platform teams to define ...