1 to 25 of 101 Performance Tuning Jobs in London

update platforms and automation to eliminate problems Develop platform automation tooling to eliminate toil Provide support to application development teams in product and performance selection L3 Product database support for Exadata Cloud and Oracle Databases. Designing Database Model Must Have Core Oracle 11g, 12c, 18c, 19c,23ai Database DBA. … Preferably Oracle Certified Master(OCM) Expert in Exadata infrastructure Expert in Exadata Cloud @ Customer Expert in Exadata Cloud @ Customer Autonomous Oracle Performance Tuning Oracle PL/SQL Development Bash/KSH Shell Scripting Good written and spoken English, German is a plus Strong experience with Oracle ...

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 ...

influence technology strategy and service quality. Main Responsibilities: Lead, mentor and develop a team of application developers and support analysts Foster a collaborative, high-performance culture focused on innovation and service quality Conduct performance reviews and support ongoing professional development Oversee the design, development, testing and implementation … ensure milestones are achieved Partner with change and project teams to manage demand, capacity and prioritisation Ensure timely resolution of incidents, defects and performance issues Define and monitor SLAs, managing escalations with a focus on root cause analysis Oversee application monitoring, optimisation and performance tuning Maintain ...

mission-critical investment platform. This role sits within a highly regarded technology team supporting front-to-back systems, including SimCorp Dimension , where database performance, stability, and resilience are critical to business operations. The Opportunity A high-impact position focused on the ownership and optimisation of SQL Server environments underpinning … core investment workflows. You will play a central role in ensuring data integrity, performance tuning, and high availability across a complex, regulated environment. Key Responsibilities Database Administration (Core Focus) Own and manage Microsoft SQL Server environments across DEV/UAT/PROD Deliver core DBA activities : backups, restores ...

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 ...

team. As the organisation continues to invest in modernising its core Policy Administration System (PAS) and digital infrastructure, this role will support the stability, performance, and optimisation of its database environments. This is an excellent opportunity for someone early in their DBA career to develop their technical expertise within … databases that underpin the insurer’s Policy Administration System and associated platforms. This is a hands-on technical role focused on database health, performance tuning, monitoring, security, and system reliability. You will work closely with Senior DBAs, Infrastructure Engineers, and Application Support teams to ensure database environments operate ...

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 ...

Hybrid) Contract Duration: 6 Months IR35 Status: Inside IR35 Role Overview We are seeking an experienced GCP FinOps Engineer to optimise cloud spend, performance, and operational efficiency across large-scale data analytics and containerised workloads. You will work closely with engineering, data, and product teams to embed cost-efficient … retention optimisation. Implement storage-tiering strategies based on access patterns and enforce lifecycle rules to minimise cold data retention costs. Improve relational database performance through index tuning, connection optimisation, and instance right-sizing. Enhance horizontally scalable database performance via autoscaling policies, index improvements, and mitigation of read ...

Cloud & Data Engineering (AWS-Focused) Build and deploy data pipelines using AWS services such as EMR, Glue, S3, Athena . Optimise Spark workloads for performance, partitioning, cost efficiency, and scalability. Use CI/CD pipelines and Git-based version control for deployment and automation. Collaborate with engineers, architects … write production-grade data engineering code. Strong understanding of: ETL/ELT Data modelling Facts & dimensions Data marts Slowly Changing Dimensions (SCDs) Spark Performance & Optimisation Expertise in Spark execution, partitioning, performance tuning, and optimisation. Troubleshooting distributed data pipelines at scale. Python & Engineering Quality Strong Python coding capability ...

scale GenAI platforms with clear separation of concerns: UI, orchestration, retrieval, inference, evaluation, and observability. Select model strategies: hosted LLMs, open-weight models, fine-tuning vs. prompt/RAG, latency and cost tradeoffs, and deployment patterns. 2) Agentic AI Orchestration & Tooling Architect agent systems (single/multi-agent) including … logging Responsible AI practices: evaluation, content moderation, privacy, and compliance-by-design Architecture & Systems Skills (Must Have) Distributed system design: scalability, fault tolerance, caching, performance tuning Observability: logging/metrics/tracing, prompt/version tracking, monitoring SLIs/SLOs Cost management and performance optimization: model selection ...

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 ...

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 ...

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 ...

governance of RESTful APIs, JSON, and HTTP standards API versioning and backward‐compatibility strategies MongoDB/NoSQL expertise, including: Data modeling Indexing strategies Performance optimization Advanced experience with Java concurrency, streams, and performance tuning Cloud & Infrastructure AWS services including EC2, ECS/EKS, S3, RDS and/… working in Agile/Scrum environments and influencing engineering best practices Experience Level Principal‐level backend engineering experience building and operating large‐scale, high‐performance systems Approximately 8+ years of backend development experience, with several years working on production Java and Spring Boot services Proven experience owning architecture ...

based runtime on AWS ; Infrastructure-as-Code via CDK/Terraform (CDKTF) . Apply secure-by-design and TDD ; instrument apps for observability and performance . Collaborate with product, platform, and security teams to meet operational and compliance requirements. The toolkit you’ll use Frontend: TypeScript, React.js, Vite, Material … consuming RESTful APIs ; JSON schemas; integration testing. Comfortable in AWS and modern Infrastructure-as-Code approaches. Strong engineering fundamentals: code reviews, testing, observability, performance tuning . Security Clearance: Active SC or DV (must be current). Nice-to-haves Military background (RAF/Army/Navy) or delivery ...

strong solutioning and stakeholder management capabilities. Key Responsibilities Technical Leadership & Architecture Lead endtoend technical design and architecture for scalable MERN applications. Define coding standards, performance benchmarks, and best practices for MERN based solutions. Conduct architecture reviews, code reviews, and design walkthroughs. Guide teams in building microservices based and cloud … native applications. Development & Delivery Develop and maintain high quality, efficient, and reusable MERN components. Optimize application performance, security, and reliability. Troubleshoot complex issues across frontend, backend, APIs, and database layers. Work with DevOps teams to enable CI/CD, containerization (Docker/K8s), and cloud deployments (Azure/ ...

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 ...

designing, developing and optimising resilient data pipelines that support operational and analytical use cases across complex programmes. The focus is on clean engineering, performance, security and long-term maintainability. Key experience required: • Active SC Clearance • Deep expertise across AWS data services such as Glue, Lambda, S3, Redshift, EMR, Athena … pipelines in cloud environments • Experience working with large, complex datasets, both structured and unstructured • Strong understanding of data modelling, optimisation and performance tuning • Experience with Infrastructure as Code, ideally Terraform or CloudFormation • Familiarity with CI/CD pipelines and secure DevOps practices within AWS You will work across ...

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 ...

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/ ...

experience and strong FinOps discipline . This role owns the network‐first, cost‐aware infrastructure architecture for SAP workloads on Azure, ensuring secure, high‐performance, highly available, and financially optimized Azure environments. The architect will design enterprise Azure networking , lead SAP migrations to Azure IaaS , and apply FinOps principles … Design and govern: SAP‐certified Azure Virtual Machines Managed disks (Premium/Ultra) Availability Sets and Availability Zones Own infrastructure sizing, capacity planning, and performance tuning for SAP HANA Define OS‐level standards (Linux/Windows) for SAP Design HA/DR‐ready infrastructure meeting strict RTO/ ...

Role Overview We are seeking a Lead PySpark Engineer to drive a large-scale data modernisation project, transitioning legacy data workflows into a high-performance AWS cloud environment. This is a hands-on technical role focused on converting legacy SAS code into production-ready PySpark pipelines within a complex … PySpark using automated tools (SAS2PY) and manual refactoring. Pipeline Engineering: Design, build, and troubleshoot complex ETL/ELT workflows and data marts on AWS. Performance Tuning: Optimise Spark workloads for execution efficiency, partitioning, and cost-effectiveness. Quality Assurance: Implement clean coding principles, modular design, and robust unit/ ...

data flows.You will play a key role in maturing the organisation's FDI capability - driving high-quality data modelling, optimising performance, strengthening governance, and enabling robust, scalable reporting solutions. Key Responsibilities Leverage FDI subject areas and enhance existing models to meet evolving business needs. Optimise data performance … governance compliance. Troubleshoot and resolve issues related to data modelling and reporting within FDI. Lead best-practice approaches for FDI deployment, security, optimisation, and performance tuning. Collaborate with Technology teams and third-party partners to plan, coordinate, and deliver aligned work packages. Champion continuous delivery and DevOps practices, driving ...