1 to 25 of 69 Performance Tuning Jobs in London

through Azure SQL, OLAP technologies, and DAX-powered semantic models. You will collaborate with data engineers, analysts, and business stakeholders to ensure reliable, high-performance data pipelines and analytics platforms. Key Responsibilities Data Warehouse Development Design and develop enterprise data warehouse solutions using Azure SQL Database/Azure … snowflake schemas for analytical workloads. Develop ETL/ELT pipelines for ingesting and transforming data from multiple source systems. Implement data partitioning, indexing, and performance optimization strategies. Data Modeling & Analytics Develop OLAP data models for business intelligence and reporting. Create and optimize DAX measures, calculated columns, and KPIs. Design ...

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 ...

programming and stored procedure development skills Experience with SQL Server migration tools (DMS, SSMA) Knowledge of Always On Availability Groups, clustering, and replication Performance tuning and query optimization expertise Experience with cloud database services (Azure SQL, AWS RDS for SQL Server) Strong understanding of database security and compliance … Server certifications preferred Key Duties Design, implement, and optimize MS SQL Server database solutions Perform database migrations from on-premises to cloud environments Conduct performance tuning and query optimization Implement backup, recovery, and disaster recovery strategies Ensure database security and compliance requirements are met Collaborate with application teams ...

experience in architecting, developing, and optimising large scale E-commerce platforms. The right candidate should have good skills in Magento 2 custom module development, performance tuning, and complex third-party integrations, good experience in managing end to end project life cycles, including requirement analysis, sprint planning, and release … best practice implementation across multi-store and multi-region setups, and collaborating closely with cross functional teams to deliver scalable, secure, and high-performance solutions Key Responsibilities: Own solution architecture: Design scalable Magento 2/Adobe Commerce architectures (B2C/B2B), define module boundaries, integration patterns, and data flows ...

Lead to manage and improve SAP IQ environments for large-scale analytics and date warehousing. Responsibilities: Lead SAP IQ database administration, including monitoring, performance tuning, and optimisation. Oversee near-line storage (NLS) solutions and integration with SAP HANA. Plan and run database upgrades, patching, migrations, and disaster recovery … reliability. Requirements: Extensive SAP IQ (Sybase IQ) DBA experience. Strong experience with analytics-focused databases optimized for large-scale data warehousing. Hands-on with performance tuning, monitoring, and troubleshooting for Sybase IQ NLS and SAP HANA integration experience is a plus. ECS Recruitment Group Ltd is acting ...

database systems, including both vendor-supplied and internally developed solutions Design and implement tactical and strategic database solutions with a focus on scalability, availability, performance, and resilience Proactively monitor the SQL Server estate to ensure high availability and optimal performance Provide operational support to internal stakeholders, resolving incidents … within agreed service levels Review database changes produced by development teams, ensuring suitability, security, and performance best practice Administer, maintain, and monitor database platforms with a strong focus on security and compliance Implement and maintain monitoring, alerting, backup, and recovery processes Contribute to continuous improvement initiatives across DevOps ...

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 ...

consistency across multiple sources Partner with BI teams to support dashboards and reporting tools Contribute to platform architecture decisions Continuously improve reliability, scalability, and performance You will be expected to work from the Central London office three to four days per week to enable close collaboration with technical … warehouse architecture and methodologies Experience working with large-scale enterprise datasets Strong analytical mindset with a focus on data quality Nice to Haves Snowflake performance tuning and cost optimisation Python Databricks End-to-end data platform architecture Enterprise BI platforms CI/CD pipelines Infrastructure-as-Code Employee ...

Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET skills for API development and business ...

modelling standards including dimensional modelling, star schema, and enterprise data models. Lead architecture reviews and solution design discussions for new data initiatives. Optimize Snowflake performance, workload management, and cost governance. Establish data governance frameworks including access control, data security, and compliance standards. Design and support AI/ML-ready … guest behaviour analysis, booking trends, revenue analytics, and operational reporting. Required Technical Skills Data Platform Strong expertise in Snowflake Deep knowledge of Snowflake architecture, performance tuning, data sharing, security, and workload optimization. Cloud Platform Strong experience with Amazon Web Services, including: S3 IAM AWS Glue Lambda CloudWatch Data ...

large - scale project environment. You will work on advanced RHEL 9 systems, high - end GPU workstations and HPC platforms, contributing to system stability, performance and innovation. The role provides hands - on exposure to cutting - edge technology, performance testing and automation, while collaborating closely with multi - disciplinary teams … Troubleshoot complex Linux system issues using structured diagnostic approaches Support and contribute to large - scale projects through close collaboration with cross - functional teams Conduct performance testing on HPC platforms using custom scripts and tools Analyze performance and utilization data to produce actionable insights Prepare detailed technical reports covering ...

security standards. Support Provide 2nd and 3rd line support across Dynamics CRM applications. Manage incidents, service requests, and changes following ITIL processes. Monitor CRM performance and proactively resolve operational issues Skills & Experience Required Essential Proven technical expertise in Dynamics 365 CE configuration and customisation. Hands-on with Power Platform … stakeholder management, communication, and problem-solving skills. Desirable Exposure to Copilot and AI-driven tools . ITIL certification or experience working in ITIL environments. Performance tuning and data migration expertise. *Rates depend on experience and client requirements ...

models Building robust Power BI datasets, reports, and semantic models Delivering complex data transformations using Python and PySpark Writing advanced T-SQL queries and performance-optimised stored procedures Acting as a senior escalation point for BI developers and coordinating workload distribution Ensuring governance, best practice, and testing standards across … Hands-on experience with Infor M3 ERP data Advanced Power BI skills across modelling, DAX, optimisation, and dataset design Strong SQL capabilities (T-SQL, performance tuning, stored procedures) Experience with Python and/or PySpark for data transformation Background coordinating or leading BI developers Experience delivering ...

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 ...

PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement rigorous CI/ ...

PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement rigorous CI/ ...

Manage virtual machine lifecycle including provisioning, maintenance, migration, and decommissioning Perform OS rebuilds and bare metal provisioning using Rebar Maintain infrastructure stability, availability, and performance Operating Systems Advanced Linux administration including troubleshooting, patching, hardening, and performance tuning Windows Server administration and operational support Perform system upgrades, rebuilds … recovery activities Cloud Support Provide operational support for AWS cloud environments Troubleshoot cloud infrastructure, performance, networking, and access issues Monitor cloud resources and recommend improvements for reliability, security, and cost efficiency Support hybrid infrastructure environments Infrastructure as Code and DevOps Strong experience with Terraform for infrastructure provisioning and updates ...

Implement data models (star schema, snowflake schema) optimized for analytics and reporting. Ensure data quality, consistency, and governance across the data warehouse. Optimize query performance and data refresh processes . Work closely with business stakeholders, analysts, and data teams to gather reporting requirements. Implement data security and access controls … within the BI environment. Monitor and troubleshoot data pipelines, warehouse performance, and reporting issues. Document data architecture, data flows, and BI solutions. Required Skills & Qualifications Bachelor's degree in Computer Science, Information Systems, Data Engineering, or related field . 3+ years of experience in Data Warehousing or Data Engineering ...

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 ...

excellent opportunity for a mid-level DBA who enjoys hands-on technical work, supporting developers, and strengthening their skills in Azure SQL and performance tuning. You’ll play a key role in ensuring the stability, performance, and security of our database estate while working closely with developers … similar role. Strong SQL Server installation, configuration, maintenance, and security understanding. Solid T-SQL skills for writing and refactoring queries. Experience with performance tuning techniques. Exposure to Azure SQL administration and monitoring. Experience supporting development teams with SQL-related needs. Experience with SQL-to-Azure migration projects. Familiarity ...

capabilities with broader business objectives. Key Responsibilities Lead and deliver end-to-end data integration initiatives across the organisation. Design and implement scalable, high-performance data pipelines and workflows. Integrate data from multiple disparate sources into a unified and reliable data platform. Collaborate with business and technical stakeholders … Develop and implement data strategies aligned with organisational goals. Ensure data quality, consistency, and governance across all integration processes. Optimise existing data workflows for performance, scalability, and cost-efficiency. Support the adoption of modern data platforms and cloud-based solutions. Contribute to CI/CD practices for data engineering ...

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. Ultra-Low Latency Engineering Develop ...

Azure Storage, Azure Logic Apps, Azure Function Apps and authentication/identity services. Provide governance and technical support for Power BI reporting, including modelling, performance tuning and adoption standards. Support the successful delivery of automations, integrations, and digital improvements across multiple programmes. Work closely with multidisciplinary teams including … services and cloud architecture. Expertise in data warehousing, ETL/ELT, data lakes, modelling and modern BI practices. Strong Power BI knowledge - modelling, governance, performance and best practice. Understanding of digital integration, automation tooling and contemporary architectural frameworks. Leadership & Delivery Experience leading multi-disciplinary technical teams in complex ...

Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (on-prem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor performance, availability, capacity and reliability. Oversee site collections, permissions, authentication, service applications and governance. Support backup, restore and disaster recovery processes. Troubleshoot complex cloud … React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint on-prem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. Understanding of authentication, permissions, governance and security ...

life cycle Oracle HCM Cloud architecture (HR models, best practices, quarterly updates, roadmap alignment); establish reference architectures, integration patterns, and NFRs (security, scalability, availability, performance); facilitate design workshops and deliver HLD/LLD, data models, sequence diagrams Implement HCM configurations (Core HR, Absence, Payroll, Talent, Compensation, ORC), Fast Formulas … security compliance, SoD controls, audit trails, and incident response processes Evaluate quarterly release notes for feature enablement planning, regression testing, and rollout comms; champion performance tuning, automation (eg, RPA), and UX enhancements through Journeys/HCM Experience Design Studio Proactively detect risks (release, data, integration) and mitigations; deploy ...