1 to 25 of 30 Contract Performance Tuning Jobs in London

role in supporting our extensive portfolio of over 800 Oracle databases, primarily focusing on Oracle 19c. You will be responsible for ensuring the reliability, performance, and security of our database environments, which include complex configurations such as RAC/ASM, Exadata, Dataguard, and RMAN. Key Responsibilities: Support and maintain … Clusters and associated application tools. Create, modify, and patch various database products as needed. Execute Oracle RMAN backup and recovery procedures effectively. Optimize database performance through tuning and monitoring. Configure and operate Oracle GoldenGate microservices. Provide support for Oracle Exadata and Oracle DataGuard environments. Utilize OEM 13c, Oracle ...

optimise Spark-based data pipelines for batch and streaming workloads Develop Fabric dataflows, pipelines, and semantic models Implement complex transformations, joins, aggregations and performance tuning Build and optimise Delta Lake/delta tables Develop secure data solutions including role-based access, data masking and compliance controls Implement data … cleansing, profiling and documentation Work closely with analysts and stakeholders to translate requirements into scalable technical solutions Troubleshoot and improve reliability, latency and workload performance Essential Skills Strong hands-on experience with PySpark, Spark SQL, Spark Streaming, DataFrames Microsoft Fabric (Fabric Spark jobs, dataflows, pipelines, semantic models) Azure: ADLS ...

lifecycle (encryption, secrets management, logging). Collaborate with product, QA, SRE, and architecture teams to deliver high-quality features in iterative releases. Contribute to performance tuning, resilience testing, and SLAs/SLOs for real-time processing. Write clean, testable code with unit, integration, and contract tests; participate … Experience with Hazelcast, Kafka Connect, Schema Registry, or Confluent Platform. Knowledge of security in payments: OAuth2/OpenID Connect, mTLS, HSMs, tokenisation. Background in performance engineering (JMH, Gatling, k6) and chaos/resilience testing. Cloud experience (AWS/GCP/Azure) and infrastructure-as-code (Terraform/Ansible). ...

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 ...

autoscaling and cost efficiency. Ensure robust AWS networking (VPC, Transit Gateway, PrivateLink, Route 53) and enforce security best practices. Drive incident response, monitoring, and performance tuning. Key Technologies: AWS (EKS, Fargate, EC2, S3) Terraform CloudFormation GitLab ArgoCD Docker Kubernetes Helm Cassandra OTel Grafana Splunk Karpenter Python Desirable: Experience with ...

processing patterns (CDC, watermarking, upserts) AWS Data Services Amazon S3: data lake architectures, partitioning strategies, lifecycle policies DynamoDB: data modeling, secondary indexes, streams, and performance optimization Amazon Redshift: foundational querying, integrations, and performance considerations AWS Lambda for scalable data processing and orchestration Amazon EventBridge for event-driven … decoupled data pipelines Vector Databases & Embeddings Strong understanding of vector database concepts, indexing strategies, and performance trade-offs Design and implementation of embedding generation pipelines Optimization techniques for semantic search and retrieval accuracy Effective chunking strategies for document ingestion and processing Experience with CockroachDB deployment and management is beneficial ...

processing patterns (CDC, watermarking, upserts) AWS Data Services Amazon S3: data lake architectures, partitioning strategies, lifecycle policies DynamoDB: data modeling, secondary indexes, streams, and performance optimization Amazon Redshift: foundational querying, integrations, and performance considerations AWS Lambda for scalable data processing and orchestration Amazon EventBridge for event-driven … decoupled data pipelines Vector Databases & Embeddings Strong understanding of vector database concepts, indexing strategies, and performance trade-offs Design and implementation of embedding generation pipelines Optimization techniques for semantic search and retrieval accuracy Effective chunking strategies for document ingestion and processing Experience with CockroachDB deployment and management is beneficial ...

this hands-on, technical position, you will take ownership of a significant portfolio of around 90 SSIS batch jobs. You'll dive deep into performance analysis, tackle existing technical debt, and implement best practises that will elevate our data operations. Your expertise will be crucial as we gear … exciting data warehouse migration from New York to London in 2026! Key Responsibilities Analyse and optimise SSIS ETL pipelines and batch jobs. Improve SQL performance through effective indexing and execution plans. Identify and resolve locking and blocking issues to enhance efficiency. Apply best practises to boost overall warehouse performance. ...

this hands-on, technical position, you will take ownership of a significant portfolio of around 90 SSIS batch jobs. You'll dive deep into performance analysis, tackle existing technical debt, and implement best practises that will elevate our data operations. Your expertise will be crucial as we gear … exciting data warehouse migration from New York to London in 2026! Key Responsibilities Analyse and optimise SSIS ETL pipelines and batch jobs. Improve SQL performance through effective indexing and execution plans. Identify and resolve locking and blocking issues to enhance efficiency. Apply best practises to boost overall warehouse performance. ...

searching for one of our key clients for an Azure Cosmos DB Admin & Developer to drive the build-out of cloud-native, high-performance financial applications. This role sits at the sharp end of modern banking engineering, owning the design, optimisation, and operational excellence of Cosmos DB across mission … critical workloads. You will shape partitioning models, indexing strategies, consistency models, and performance tuning while building reusable frameworks in C#/.NET or Node.js. Expect close collaboration with architects and DevOps to embed Cosmos DB into microservices, backed by robust CI/CD through Azure DevOps. This position ...

Code and modern CI/CD . Embed secure-by-design principles from architecture to runtime. Define and manage SLOs/SLIs ; drive observability, performance tuning, and automation. Promote API-first delivery , creating reusable patterns and golden paths. Mentor engineers and actively contribute to communities of practice. Core ...

with executive-level customers. Required Qualifications 5+ years working with Looker and BigQuery. Strong proficiency in advanced LookML and semantic modelling. Experience in Looker performance tuning and model optimisation. Proven ability to develop complex dashboards with cross-filters, custom filters, and custom visualisations. Experience with governance, access management ...

structured telecom datasets (CDRs, network logs, subscriber data) Data Lake Technologies: Expertise in Apache Iceberg table format Schema evolution, partitioning, compaction & metadata management Query performance tuning with Athena & Redshift Spectrum Redshift Expertise: Data modeling, distribution styles, sort keys Workload management (WLM) Performance optimization & troubleshooting Python: Automation scripts … Data processing workflows Monitoring, debugging, validation scripts AWS Support/Operations: Troubleshooting ETL failures, performance bottlenecks, pipeline issues Monitoring cloud workloads (CloudWatch, CloudTrail) Handling incidents, root-cause analysis (RCA), patching & releases Cost optimization and resource usage tracking Data quality checks for telecom data pipelines Roles & Responsibilities Provide L2/ ...

/Data Migration - experience of data migration projects and working with large data sets Data load Utilities - SQL*Loader plus use of Database Links Performance Tuning - code analysis and execution plan optimisation Oracle development tools - SQL*Plus, TOAD/SQL Developer UNIX -- knowledge of the OS shells along ...

global development teams, fostering capability growth and collaboration. Continuous Improvement Champion modernisation through SAP BTP, Fiori, automation, and best-practice engineering techniques. Drive system performance tuning and post-go-live optimisation. Support knowledge sharing and continuous improvement across SAP development teams. Qualifications & Experience Essential Bachelor's or Master ...

Lead data migrations from Dell EMC VMAX and Commvault systems Deliver expert-level support and management across SAN and NAS platforms Oversee storage provisioning, performance tuning, and capacity planning Troubleshoot complex storage incidents in high-availability environments Support upgrades, lifecycle management, and transformation initiatives Collaborate with infrastructure, networking ...

code logic and database interactions. Key Skills & Requirements: Strong proficiency in C#/.NET and Oracle PL/SQL, including complex query analysis and performance tuning. Solid understanding of application server and Oracle database structures. Python scripting skills for automation or data analysis (desirable). Familiarity with data lineage ...

code logic and database interactions. Key Skills & Requirements: Strong proficiency in C#/.NET and Oracle PL/SQL, including complex query analysis and performance tuning. Solid understanding of application server and Oracle database structures. Python scripting skills for automation or data analysis (desirable). Familiarity with data lineage ...

hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes.The ideal candidate will have strong commercial experience in backend focused .NET development with … systems and APIs* Develop secure, scalable, and maintainable services using C# and ASP.NET Core* Work with SQL Server to optimise queries, stored procedures, and performance* Support AWS deployments and cloud environment configuration* Analyse issues in existing systems and provide robust technical solutions* Contribute to continuous improvement of tools, processes ...

hosted systems. You will work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services. You will also support deployments, performance tuning, and the improvement of backend architecture and development processes. The ideal candidate will have strong commercial experience in backend focused .NET development … systems and APIs * Develop secure, scalable, and maintainable services using C# and ASP.NET Core * Work with SQL Server to optimise queries, stored procedures, and performance * Support AWS deployments and cloud environment configuration * Analyse issues in existing systems and provide robust technical solutions * Contribute to continuous improvement of tools, processes ...

Storage for persistent storage and Red Hat Enterprise Linux (RHEL) as the underlying operating system. Delivery: Performing advanced troubleshooting, patching, upgrades, capacity planning, and performance tuning of the OpenStack environment. Container Integration: Increasingly, this role involves enabling container platforms like Red Hat OpenShift … OpenStack virtual machines (VMs). Essential commercial experience Expert-level Red Hat Enterprise Linux (RHEL) administration, including networking, security, storage, and performance tuning. Deep knowledge of core services (Nova, Neutron, Cinder, Keystone, Glance, Swift Experience of Ansible for configuration management and orchestration, and scripting with Python or Go . ...

Databricks Data Engineer Azure Cloud & Performance Optimization £400-£458pd (Inside IR35) SC Clearance is Essential Remote Overview We are seeking a Databricks Data Engineer experienced in building high-quality data pipelines and optimizing large-scale workloads on the Databricks Data Intelligence Platform. The ideal candidate is strong in PySpark … Delta Lake, Azure services, workflow automation, and performance tuning. Key Responsibilities Build and maintain scalable batch and streaming pipelines using Databricks notebooks, Jobs, and Workflows. Optimize Spark and Delta Lake performance through cluster tuning, efficient configurations, AQE, and caching. Run performance tests and ensure workloads ...

About the Role: Were seeking an experienced Senior Implementation Specialist to join a global enterprise delivery team responsible for designing, building, and supporting high-performance SAN environments. Youll play a key role in end-to-end SAN architecture, configuration, and delivery, leveraging deep expertise in Brocade Gen6/Gen7 … compliance Provide 3rd Line operational support and lead migration/refresh projects (e.g. global SAN upgrades). Ensure best practices in fabric design, performance tuning, and lifecycle management. Collaborate with service delivery teams to meet operational and business objectives. Skills & Experience: Proven background in Brocade Gen6/Gen7 ...

posture, drive improvements across our network security stack, and support key projects focused on cloud, firewall, and WAF optimisation. Key Responsibilities Lead the configuration, tuning, and optimisation of Barracuda WAF platforms Support and enhance Azure networking components including VNets, NSGs, firewalls, load balancers, and routing Work with next-generation … network security, traffic flows, segmentation, and application security Understanding of OWASP, threat mitigation, and secure configuration principles Experience in incident response, troubleshooting, and performance tuning Excellent communication and documentation skills Click apply to be considered. ...

month needed onsite UK RESIDENTS ONLY. MUST HAVE experience of working on Angular 19 & 20. Experience in designing & implementing UI Applications Experience of performance tuning click apply for full job details ...