151 to 175 of 337 Performance Tuning Jobs in London

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 ...

development using PL/SQL Strong SQL skills and experience using tools such as SQL Developer, Toad or SQL*Plus Experience writing complex and performance-focused SQL queries Experience debugging and performance-tuning PL/SQL Experience with ETL processes and data extraction/transformation/loading ...

development using PL/SQL Strong SQL skills and experience using tools such as SQL Developer, Toad or SQL*Plus Experience writing complex and performance-focused SQL queries Experience debugging and performance-tuning PL/SQL Experience with ETL processes and data extraction/transformation/loading ...

networking and data communication technologies. The ideal candidate will be responsible for designing, implementing, optimizing, and supporting complex network infrastructures while ensuring high availability, performance, scalability, and security. The role requires close collaboration with infrastructure, security, cloud, and operations teams to deliver reliable and efficient networking services. In this … matter expertise for LAN, WAN, WLAN, SD-WAN, VPN, and Data Center networking technologies. Lead network transformation and modernization initiatives. Perform network capacity planning, performance tuning, and optimization. Troubleshoot complex network issues and drive root cause analysis. Collaborate with Infrastructure, Security, Cloud, and Application teams to ensure seamless ...

analytics and reporting. Collaborate with cross‐functional teams to understand data requirements and deliver robust solutions. Monitor, troubleshoot, and enhance data workflows for performance and reliability. Maintain technical documentation and contribute to data engineering best practices. Required Skills & Qualifications: Strong experience withDatabricks- DLT, Delta Lake concepts, UC governance. Solid …/ELT processes, and data architecture. Experience in MS Copilot, AI Foundry , Databricks (MosiacAI, MLflow, Agentbricks, Genie) Strong analytical background with problem‐solving skills. Performance tuning concepts like watermarking, late data handling, parallelism & checkpointing. Hands‐on expertise inADF, and Qlik Replicatefor data ingestion and replication. Experience working inAzure ...

case studies with Women in Tech. As a Staff Infrastructure Engineer, you will: Design, document, build and maintain scalable infrastructure on GCP Ensure the performance and reliability of cloud environments whilst measuring cost-effectiveness Embrace automation and be reluctant for manual implementation Build systems with security by design … Manager (EKM) and Secret Manager — including support for cryptographic key ceremonies Rapidly diagnose and fix client-reported infrastructure issues while maintaining peak security and performance Write clear technical documentation and host training sessions for the team Demonstrate knowledge of new technologies and changes in the industry Lead complex infrastructure ...

Implements a repeatable AI-assisted review workflow (PR checklist, quality gates, and approval criteria) that improves readability, reduces defects, and enforces standards for maintainability, performance, and security. Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve … software development tools (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security. Defines a practical operating model for AI-assisted development (approved use cases, do/don't guidance, and escalation paths) so teams ...

Implements a repeatable AI-assisted review workflow (PR checklist, quality gates, and approval criteria) that improves readability, reduces defects, and enforces standards for maintainability, performance, and security. Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve … software development tools (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security. Defines a practical operating model for AI-assisted development (approved use cases, do/don’t guidance, and escalation paths) so teams ...

solid understanding of networking, storage, and automation within enterprise-scale environments. Key Responsibilities Design, implement, and manage VMware-based virtual infrastructure, ensuring high availability, performance, and scalability. Administer VMware vSphere, ESXi hosts, vCenter, and associated tools to maintain a stable and secure environment. Manage and optimize virtual networking, storage … Azure). Collaborate with cross-functional teams to ensure robust infrastructure alignment with business needs. Maintain documentation, adhere to best practices, and participate in performance tuning and capacity planning. Required Skills & Experience Minimum 5 years of continuous UK residency . 5+ years of proven experience in VMware infrastructure ...

forestall future enhancements. Investigate, troubleshoot, and resolve Real Time production issues, working closely with traders, developers, and infrastructure teams. Ensure continuous system stability and performance across all FICC trading platforms, supporting both traders and institutional clients. Serve as the local subject matter expert for EMEA FICC trading infrastructure, owning … reduce manual intervention. Provide technical expertise on connectivity, data flows, and integration points between trading, pricing, and risk systems. Contribute to capacity planning, performance tuning, and resilience testing. Support global follow-the-Sun coverage and participate in on-call rotation as required. Required Skills and Experience: Tech ...

enterprise search solutions using Elasticsearch and Azure AI Search. Define Elasticsearch cluster architecture, index mappings, aggregation queries and lifecycle strategies. Improve search relevance, indexing performance, query latency and platform resilience. Build Azure AI Search solutions using indexers, custom skillsets, vector search and semantic ranking. Develop responsive, search-focused applications … experience At least 10 years of software engineering or solution architecture experience. Deep, hands-on Elasticsearch expertise covering cluster architecture, mappings, aggregations, Lucene internals, performance tuning and snapshot/restore. Extensive production experience with Azure AI Search, including indexers, custom skillsets, vector search and semantic rankers. Strong JavaScript ...

actively engaged in technical solutioning and development.* Ensure alignment of data models and reports with business KPIs, regulatory requirements, and financial planning processes.* Perform performance tuning of large datasets, ensuring efficient queries and faster reporting outputs.* Work with cross-functional teams (Finance, IT, Data Governance, Architecture) to ensure … data sources. Should have hands on experience on modeling for FI(GL,AP,AR,AA, and CO) processes.* Strong grasp of data governance, lineage, performance optimization, and data security concepts.* Proven ability to design and implement end-to-end analytics solutions from requirements gathering to production rollout.* Excellent communication ...

Design, build and optimise ETL/ELT data pipelines across multiple data sources Write and optimise complex SQL queries , including joins, window functions and performance tuning Translate business requirements into reliable, auditable datasets Perform data mining, reconciliation and root-cause analysis across complex data sources … rules and operational runbooks Lead technical workshops around systems, data flows and root-cause analysis Strong hands-on SQL skills, including advanced querying and performance optimisation Commercial Data Engineering experience within complex enterprise environments Strong experience designing and developing ETL/ELT pipelines Data warehouse and/or domain ...

Operations Engineers. Set clear goals, priorities, and expectations for the team. Manage workload and resource allocation across the team. Support regular 1:1s, performance reviews, and development plans. Build a collaborative team culture focused on ownership and accountability. Operational Ownership & Reliability Own the reliability, performance, and availability … environments (NVIDIA GPUs, InfiniBand/RDMA, parallel file systems). Scripting skills in Python and/or Bash for automation and tooling. Understanding of performance tuning for HPC/GPU systems. Experience with CI/CD pipelines and modern DevOps tooling. Background designing or improving on‐call rotations ...

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 … 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 ...

cause analysis on data discrepancies and integration/processing failures; deliver clear ad hoc analysis to support decision-making. Support database maintenance (integrity checks, performance tuning, backups, access administration) in coordination with engineering. Support data migrations and integrations by validating mapping, conversions, and file processing, documenting issues … data analyst, business intelligence, or analytical role. Strong SQL skills across relational databases, plus working knowledge of database maintenance concepts (data integrity, performance, access controls). Proficiency with a BI tool (Power BI, Tableau, or Looker) and advanced spreadsheet skills (Excel or Google Sheets). Solid grasp of data ...

established a robust technical, secure foundation using modern open-source, cloud-native technologies. Now we’re ready to scale – expanding capability, automation and performance as we grow our client base, which comprises several enterprise customers and a long tail of smaller organisations. If you want to build meaningful tech … distributed systems running across a hybrid estate. Configure and secure infrastructure across major cloud providers (GCP, AWS, Azure). Contribute to platform observability, monitoring, performance tuning and optimisation. Work with SUSE’s technology stack including Leap Micro , Uyuni , and SaltStack . Collaborate with internal and external technical partners ...

evolution of deployment pipelines and system reliability across our monorepos and legacy platform (CircleCI, NX, Docker)Guide AWS cloud strategy - hosting, networking, scalability, performance, and cost-efficiency across production environmentsOversee Infrastructure as Code practices (e.g. Terraform) and ensure environments are consistent, auditable, and secureShape monitoring, observability and alerting across … fast-growing, regulated environmentsProven experience leading or acting as technical lead for a platform or operations teamStrong AWS infrastructure experience, including cost optimisation, performance tuning, and production troubleshootingProficiency with Infrastructure as Code tools such as OpenTofu, Terraform, or Cloud formation (OpenTofu preferred)Expertise in observability - monitoring, logging, alerting ...

evolution of deployment pipelines and system reliability across our monorepos and legacy platform (CircleCI, NX, Docker) Guide AWS cloud strategy - hosting, networking, scalability, performance, and cost-efficiency across production environments Oversee Infrastructure as Code practices (e.g. Terraform) and ensure environments are consistent, auditable, and secure Shape monitoring, observability … growing, regulated environments Proven experience leading or acting as technical lead for a platform or operations team Strong AWS infrastructure experience, including cost optimisation, performance tuning, and production troubleshooting Proficiency with Infrastructure as Code tools such as OpenTofu, Terraform, or Cloud formation (OpenTofu preferred) Expertise in observability - monitoring ...

planning and execution of LLM initiatives and translating research requirements into scalable engineering solutions. Partner with centralised infrastructure teams to design and deliver high-performance compute environments across AWS and on-premises platforms, including GPU infrastructure, Slurm clusters, and migration from ad hoc research workflows. Optimise LLM training … inference workloads, supporting research and product teams in maximising performance, scalability, and reliability across the infrastructure stack. Establish and maintain model and data lifecycle capabilities, including dataset versioning, lineage tracking, reproducibility standards, and integration with model registries. Lead the evolution of knowledge graph infrastructure, driving technology selection, migration strategies ...

Spring Boot, Spring Cloud, and Microservices.Deep knowledge of Kafka, NATS, event streaming, API architecture, and integration patterns.Hands-on expertise with Oracle, PostgreSQL, data modelling, performance tuning, and high-availability systems.Excellent stakeholder management, leadership, and communication skills.Preferred QualificationsBanking or Financial Services background.Experience leading large-scale transformation and modernization programs.TOGAF ...

infrastructure through Infrastructure as Code and scripting. Maintaining high availability and resilience across critical systems. Managing access controls and permissions within cloud platforms. Troubleshooting, performance tuning and platform optimisation. Developing technical standards, best practices and documentation. Providing technical support and guidance to internal engineering teams. Required Experience ...

business users and technologists Ability to have constructive technical discussions What would be useful: An interest or experience with Angular and Typescript Familiarity with performance‐tuning PostgreSQL and/or MSSQL Experience in financial services We are proud to be an equal‐opportunity workplace. We do not discriminate ...

writing skills and data analysis using SQLPlus/Toad/SQL developer Experience writing complex and optimal SQL queries Experience in debugging and performance tuning PL/SQL code Experience in Oracle Forms 12c (Oracle Fusion Middleware) Experience with ETL processing, data extraction, transform and load Working knowledge ...