126 to 150 of 336 Performance Tuning Jobs in London

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 ...

/CD pipelines, including build, test, security scanning, and deployment workflows across multiple environments. Manage relational database infrastructure on RDS and Aurora, including provisioning, performance tuning, backup/restore strategy, patching, and failover testing. Write Python-based tooling, automation scripts, and internal services to reduce manual toil ...

pipelines using PySpark, SQL, and Delta Lake. Mentor and guide junior data engineers, promoting best practices in code quality, CI/CD, and performance tuning. Collaborate with data architects, analysts, and stakeholders to translate business requirements into technical data solutions. Ensure data security, governance, and quality standards are maintained ...

role at the intersection of quantitative research and production engineering. You’ll help design and implement sophisticated pricing, hedging and optimisation models within high-performance, distributed Java systems. What you’ll be doing Building production‐grade pricing, hedging and optimisation models in Java Developing client pricing, spread optimisation … advanced Java development experience Strong commercial experience with Java 17 or later , ideally Java 21 Excellent knowledge of concurrency, object-oriented design and performance engineering Experience building high-performance, distributed systems A strong quantitative background with practical experience in numerical optimisation or machine learning Experience in client pricing ...

future of finance with Citi Tech. Job Responsibilities/Role: Design and develop reusable algo trading platform components, with a strong focus on high performance and low latency. Collaborate directly with Traders, Quants, and Product Managers to understand business requirements and implement functional enhancements to the algo trading platform. … Ensure the strong reliability, scalability, and performance of core algorithmic components. Work seamlessly with wider eTrading Teams and Production Support to maintain and enhance live trading systems. Adhere to stringent engineering standards, continuously striving for best-in-class solutions and practices. Qualifications: Significant extensive hands‐on coding experience ...

culture of continuous improvement. Collaborate closely with Product, Design, and other stakeholders to shape requirements, making architectural and technical decisions that balance quality, performance, and delivery timelines. Ensure the implementation of high-quality, resilient, and scalable distributed systems, incorporating resilience mechanisms and best practices. Lead troubleshooting and incident management … Architecture & Design Expertise: In-depth understanding of architectural principles and patterns, particularly for distributed systems (e.g., microservices, event-driven architecture using Kafka). Resilience & Performance Optimisation: Skilled in applying resilience mechanisms and performance tuning practices to ensure system stability and efficiency at scale. Cloud Infrastructure & DevOps: Proficient ...

Elsevier is looking for a Systems Engineer I to join our TIO team. In this role, you'll help ensure the reliability, scalability, and performance of the systems that power Elsevier's products, working closely with software engineers, platform teams, and other systems engineers. This is an entry … their career who want to grow their skills in cloud infrastructure, automation, and operational excellence. Responsibilities Monitor, maintain, and improve the reliability, availability, and performance of production systems running on AWS Respond to incidents and help drive root cause analysis and postmortems Build and maintain automation for deployment, monitoring ...

goals and enhancing our leading position. Job Responsibilities/Role: Design and develop reusable algo trading platform components, with a strong focus on high performance and low latency. Collaborate directly with Traders, Quants, and Product Managers to understand business requirements and implement functional enhancements to the algo trading platform. … Ensure the strong reliability, scalability, and performance of core algorithmic components. Work seamlessly with wider eTrading Teams and Production Support to maintain and enhance live trading systems. Adhere to stringent engineering standards, continuously striving for best-in-class solutions and practices. Qualifications: Significant extensive hands-on coding experience ...

analytics solutions while working closely with client stakeholders to define architecture and drive successful delivery. Key Responsibilities Design and implement scalable, secure, and high-performance data architectures on GCP, with BigQuery as the core data warehouse. Define end-to-end data architecture, including ingestion, transformation, storage, governance, and reporting. … Lead migration of Legacy data warehouses and ETL workloads to GCP and BigQuery. Design optimized BigQuery schemas, partitioning, clustering, and performance tuning strategies. Develop data pipelines using Cloud Dataflow, Dataproc, Cloud Composer, Cloud Functions, Pub/Sub, and Cloud Storage. Work with client business and technical teams ...

growing team in the UK and rest of Europe. About the roleThe CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills to operate, maintain … technical issues. Lead problem determination, root cause analysis, and recovery activities during critical incidents. Design and implement new technology solutions to improve service availability, performance, and operational efficiency. Monitor CICS performance and system resources to ensure optimal response times and service levels. Develop, test, and maintain backup, recovery ...

growing team in the UK and rest of Europe. About the role The CICS Mainframe Systems Programmer is responsible for ensuring the stability, availability, performance, and continuous improvement of CICS services within the IBM Mainframe environment. The role requires strong technical expertise, domain knowledge, and specialist skills to operate … technical issues. Lead problem determination, root cause analysis, and recovery activities during critical incidents. Design and implement new technology solutions to improve service availability, performance, and operational efficiency. Monitor CICS performance and system resources to ensure optimal response times and service levels. Develop, test, and maintain backup, recovery ...

trading activity. What You'll Do Design, develop, and implement robust risk systems that support Equity Volatility trading strategies Build and maintain scalable, high-performance server-side applications using Java and Spring Boot Build and integrate exotic pricing models to support product pricing and lifecycle management Provide Level … production support, including troubleshooting, performance tuning, and resolution of complex system issues Identify system bottlenecks proactively and implement improvements that maintain platform performance and reliability Conduct code reviews and implement automated testing to strengthen application quality and reliability Write clean, maintainable, and testable code in line with ...

both. A genuine DevOps mindset: comfortable owning build pipelines, container images, releases, and the operational side of a product. Experience designing software for performance, scalability, and predictable cost on cloud infrastructure. Bonus PointsHands-on experience with Snowflake, especially Native Apps, Snowpark Container Services, or building stored procedures and UDFs … etc.).Understanding of graph theory and graph algorithms (centrality, community detection, pathfinding, embeddings), or strong curiosity to learn them. Background in distributed systems, JVM performance tuning, or columnar/analytical query engines. Experience working in a distributed, remote-first team and shipping to enterprise customers.#Li-HybridWhy Join Neo4j ...

integrations.Translate complex requirements into functional designs, technical specifications, data models, interface designs, and deployment approaches.Provide design governance for security, profiles and permissions, custom objects, performance, data retention, environment management, and operational support.Own architecture across multiple service workstreams and advise client leadership on roadmap and modernization priorities.Development, Customization, and IntegrationDesign … Cloud or equivalent middleware.Apply platform capabilities such as Job Scheduler, Element Manager, Data Sync, External Objects, and analytics where relevant.Lead troubleshooting, root-cause analysis, performance tuning, code reviews, release validation, and production stabilization.Implementation and Delivery LeadershipLead full lifecycle deliveries from requirements and solution design through configuration, development ...

complex requirements into functional designs, technical specifications, data models, interface designs, and deployment approaches. Provide design governance for security, profiles and permissions, custom objects, performance, data retention, environment management, and operational support. Own architecture across multiple service workstreams and advise client leadership on roadmap and modernization priorities. Development, Customization … equivalent middleware. Apply platform capabilities such as Job Scheduler, Element Manager, Data Sync, External Objects, and analytics where relevant. Lead troubleshooting, root-cause analysis, performance tuning, code reviews, release validation, and production stabilization. Implementation and Delivery LeadershipLead full lifecycle deliveries from requirements and solution design through configuration, development ...

product objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable storiesDesign and implement complex features; complete complex bug fixes and performance improvementsDefine and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observabilityEstablish/maintain CI/CD pipelines … Java/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or WindowsExperience with relational and non-relational data stores, performance tuning, and data modellingKnowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practicesUnderstanding of secure coding, performance optimisation, reliability ...

experience with AWS services , particularly S3 for storage and Lambda for serverless processing. Solid understanding of data modelling , ETL/ELT processes, and performance optimization. Programming & Engineering Skills Proficiency in Python for data engineering tasks and automation. Ability to design and implement scalable, maintainable data pipelines . Experience with … cloud-native environments and following security/compliance standards. Nice-to-Have Exposure to streaming data architectures and event-driven systems. Knowledge of Snowflake performance tuning and cost optimization. If you find this opportunity intriguing and aligning with your skill set, we welcome the submission of your ...

objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable stories* Design and implement complex features; complete complex bug fixes and performance improvements* Define and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observability* Establish/maintain CI/…/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or Windows* Experience with relational and non-relational data stores, performance tuning, and data modelling* Knowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practices* Understanding of secure coding, performance ...

objectives into sound technical designs and testable acceptance criteria; decompose epics into implementable stories Design and implement complex features; complete complex bug fixes and performance improvements Define and uphold Definition of Ready/Done including code quality, automated test coverage, security checks, and observability Establish/maintain CI/…/JVM, JavaScript/TypeScript, .NET/C#, Python, C/C++, SQL, Linux, or Windows Experience with relational and non‐relational data stores, performance tuning, and data modelling Knowledge of CI/CD platforms, containers, cloud technologies, observability, and monitoring practices Understanding of secure coding, performance ...

test generation, prototyping, and refactoring. Требования: Expert-level Java expertise and production Kotlin experience, or a clear appetite to adopt Kotlin, for multithreaded, high-performance enterprise systems; Practical experience designing message-passing and event-sourcing architectures, including failure handling, ordering guarantees, and replay semantics; TDD as a core engineering … e.g., 871(m), EMIR, MiFID), and integrating with risk/valuation systems in an equities context; strong SQL Server depth (T-SQL, schema design, performance tuning) in high-transaction environments; experience with Kafka and MongoDB at scale; experience deploying on Kubernetes/OpenShift with observability using OpenTelemetry ...

Define environment strategies (dev/test/prod), CI/CD pipelines, and release processes for Databricks deployments Implement monitoring, logging, cost optimisation, and performance tuning across the platform Design and implement data pipelines using Delta Live Tables, Auto Loader, and Databricks Workflows for both batch and streaming … GDPR, ISO 27001, sector-specific standards) What success looks like in the role: Delivery of robust, secure, and scalable Databricks platforms that meet client performance and cost expectations Clear, well-architected solutions that balance flexibility, governance, and operational efficiency Strong client relationships built on trust, technical credibility, and effective ...

Software Developer – High Performance Trading SystemsLocation: London (On-site)400k+ total compWe are looking for a talented software engineer to join a high-performing team responsible for architecting and delivering the systems that underpin a leading and disruptive global trading operation. You'll work on the full lifecycle … high-throughput, low-latency platforms – including algorithmic trading engines, venue connectivity, and real-time pricing infrastructure. Expect deep technical ownership, constant performance tuning, and direct impact on production trading. What you'll work on: Design and optimise mission-critical systems where microseconds and gigabits matterBuild core infrastructure ...

design requirements into accessible, reusable interfaces. Experience with secure coding, sensitive data, Docker, Git, automated testing and CI/CD. Strong debugging and performance‐tuning skills, and clear communication with technical and non‐technical stakeholders. Desirable Skills and Experience Experience with Azure OpenAI, Azure AI Search, Microsoft Graph ...

driven Software Engineer to take on an exciting new career challengeDay-to-day, you'll be engineering and maintaining innovative, customer centric, high performance, secure and robust solutionsIt's a chance to hone your existing technical skills and advance your career while building a wide network of stakeholdersWhat … deploymentExperience designing and building RESTful APIs in line with established engineering standards and best practicesGood understanding of microservices architecture, scalability, resiliency, caching, and performance optimisationExperience with Java performance tuning and troubleshooting, including root cause analysis and resolution of complex technical issuesKnowledge of DevOps and CI/ ...

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 ...