1 to 25 of 217 Performance Tuning Jobs

Oracle DBA

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Sheffield, South Yorkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£365 per day
maintain, and optimize mission-critical Oracle database environments. The ideal candidate will possess strong expertise in Oracle RAC (Real Application Clusters), Oracle Data Guard, Performance Tuning & Optimization, and RMAN (Backup & Recovery), ensuring high availability, disaster recovery readiness, optimal performance, and operational excellence across enterprise database platforms.The successful … physical and logical standby databases, switchover, and failover activities.*Perform proactive database monitoring and troubleshooting to maintain system health, availability, and performance.*Lead database performance tuning initiatives by analyzing SQL execution plans, optimizing queries, and identifying system bottlenecks.*Monitor database resource utilization and recommend improvements to enhance performance ...

Senior Azure SQL Server Database Administrator

Hiring Organisation
PFH Technology Group
Location
England, United Kingdom
Azure cloud technologies, and support for ArcGIS Enterprise environments. This role is ideal for professionals who excel in SQL Server administration, cloud integration, database performance optimization, and geospatial data management. The successful candidate will work on SQL Server initiatives including high availability, performance tuning, monitoring, deployment configurations … premises and Azure environments. • Design and implement High Availability solutions including Always On Availability Groups, Failover Clustering, and Azure Geo-Replication. • Perform database performance tuning using DMVs, Query Store, Extended Events, and Database Tuning Advisor. • Manage SQL Server Agent jobs, linked servers, and Database Mail. • Oversee database ...

Senior Site Reliability Engineer, Performance Engineering

Hiring Organisation
Mastercard
Location
O Fallon, Missouri, United States
Employment Type
Permanent
Salary
USD Annual
unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Senior Site Reliability Engineer, Performance Engineering Senior Site Reliability Engineer, Performance Engineering Payment Optimization unifies multiple Mastercard capabilities to improve transaction success, reduce avoidable declines, and simplify issuer, acquirer … driven optimization intelligence, and executes time-critical optimization actions while maintaining clear domain ownership and scalable boundaries. We build products for scale. The SRE & Performance Engineering team is looking for a strong, innovative engineer to help optimize and scale our suite of services. This role supports Automatic Billing Updater ...

Database Administrator

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
resilience, and recovery of critical database platforms. The successful candidate will be a hands-on technical expert, actively involved in architecture decisions, database design, performance tuning, data reconciliation, and operational support. Key Responsibilities Lead the architecture, design, and implementation of enterprise database solutions on AWS. Design and maintain … Define, implement, and test backup, recovery, failover, and disaster recovery processes. Actively participate in architecture reviews, technical governance, and design authority decisions. Optimise database performance through query tuning, execution plan analysis, indexing, and configuration improvements. Provide hands-on troubleshooting and resolution of complex production issues. Perform data reconciliation ...

Database Administrator

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £565/day
resilience, and recovery of critical database platforms. The successful candidate will be a hands-on technical expert, actively involved in architecture decisions, database design, performance tuning, data reconciliation, and operational support. Key Responsibilities Lead the architecture, design, and implementation of enterprise database solutions on AWS. Design and maintain … Define, implement, and test backup, recovery, failover, and disaster recovery processes. Actively participate in architecture reviews, technical governance, and design authority decisions. Optimise database performance through query tuning, execution plan analysis, indexing, and configuration improvements. Provide hands-on troubleshooting and resolution of complex production issues. Perform data reconciliation ...

Senior SQL Server DBA

Hiring Organisation
Computer Futures
Location
Coventry, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
occasional UK travel required when needed. The position would suit someone who combines strong SQL Server database administration experience with advanced T-SQL development , performance tuning, automation, and troubleshooting skills. You will be responsible for supporting, maintaining, and improving SQL Server environments to ensure high levels of performance … responsibilities You will administer and maintain SQL Server environments, with a particular focus on SQL Server 2022 . This will include monitoring database performance, identifying bottlenecks, analysing execution plans, and implementing tuning improvements across business-critical systems. A key part of the role will involve writing, optimising ...

Senior ETF Engineer, Investment Technology

Hiring Organisation
Invesco
Location
Greater London, United Kingdom
Employment Type
Full Time
processes across Equities, Fixed Income, and Alternatives. This role will partner closely with portfolio managers, quantitative researchers, and business teams to deliver scalable, high-performance solutions that support both technology-owned platforms and business-driven workflows (e.g., co-developed tools such as dashboards and portfolio management utilities). … APIs, and microservices supporting portfolio analytics, optimization workflows, and data pipelines Design and optimize SQL-based data processing (PostgreSQL, SQL Server), including complex queries, performance tuning, and large-scale ETL workflows. Implement and support distributed, event-driven architectures (e.g., Kafka, asynchronous workflows) for scalable platform execution. Develop ...

SQL Server Developer

Hiring Organisation
Picture More
Location
Orpington, Kent, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
supporting a mature Azure SQL Database environment. This is a hands-on role where you'll work with a large, established SQL codebase, troubleshoot performance issues, and help deliver reliable database solutions that support a business-critical platform. Location: SE London (Hybrid) What's on offer? Opportunity to work … with large-scale Azure SQL Database environments Varied technical challenges across performance tuning and optimisation Collaborative and supportive technical team Long-term career development opportunities Key responsibilities Design, develop and maintain T-SQL stored procedures, functions and complex queries Diagnose and resolve SQL performance issues using execution ...

Cerner Specialist

Hiring Organisation
ECS Resource Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
behalf of a global IT Services Provider who are looking for a Data Consultant (Cerner/Oracle Health) to support the remediation of performance issues and other problems associated with data pipelines. Key Responsibilities Remediate data pipeline and performance issues Provide DBA expertise across performance tuning … data requirements Requirements: Excellent understanding of Cerner (Oracle Health Data) Advanced SQL skills Minimum 5 years' healthcare sector experience Strong DBA knowledge, particularly performance tuning Strong understanding of data architecture and data structures Knowledge of national healthcare submissions and data dictionaries Excellent problem-solving and stakeholder management skills ...

SQL Server DBA

Hiring Organisation
Deerfoot Recruitment Solutions
Location
Sunbury-On-Thames, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
Database Maintenance & Security: Manage and support MS SQL Servers, designing data backups, reviewing security procedures, managing user permissions, and applying crucial patches or upgrades. Performance Tuning & Optimisation: Monitor, optimise and deliver performance tuning or modifications to software code and database migrations to ensure high availability ...

Senior Data Engineer

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Data Factory and Databricks, replacing legacy SSIS pipelines. Identifying opportunities to harden and automate manual steps within the Finance Close workflow Conduct T-SQL performance tuning across on-prem and cloud environments.Conduct T-SQL performance tuning across on-prem and cloud environments. Collaborate with ...

Platform Engineer (Database SME)

Hiring Organisation
BigChange
Location
Leeds, UK
Employment Type
Full-time
reliability, and performance. As our database expert, you will take full ownership of our SQL Server ecosystem—driving database resilience, architecture, migration strategies, and performance tuning—while collaborating with platform teams to automate infrastructure deployments via modern CI/CD pipelines.What You'll DoDatabase Strategy & Lifecycle Management … high platform availability and performance. Collaborate with platform teams to automate deployments using modern CI/CD tools and Internal Developer Platforms (Backstage).Performance Tuning & Optimization: Provide advanced query optimization, index management, and technical leadership to development teams for database-related performance bottlenecks.Automation & Scripting: Develop, enhance, and maintain ...

Network Engineer L3

Hiring Organisation
Claranet Limited
Location
Barnwood, Gloucester, Gloucestershire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
specific requirements Support onboarding of new sites/services using Zero-Touch Provisioning (ZTP) and Infrastructure-as-Code pipelines Manage routing policies, QoS, wireless performance tuning, and load balancer configuration updates Collaborate with vendor management teams on escalated transport or device issues, ensuring regulatory requirements are met Contribute … request, and change records in ServiceNow Produce and present operational reports, dashboards, and summaries for internal and customer stakeholders, highlighting compliance, risk management, and performance Support governance initiatives including process improvement, risk analysis, and post-implementation reviews Key Skills Advanced routing & switching (BGP/OSPF, ACLs, NAT) SDWAN technologies ...

GPU Systems Engineer

Hiring Organisation
Hudson River Trading
Location
London, UK
Employment Type
Full-time
clusters in globally distributed data centers. As such, this is a high-impact role with broad scope, from HPC/AI cluster design and performance tuning, to troubleshooting and automation for thousands of nodes.ResponsibilitiesDesign, build, and optimize large-scale distributed GPU compute clustersIdentify and resolve GPU workloads' performance … complex issuesQualifications 5+ years of experience in large-scale Linux systems engineering in HPC, AI or distributed infrastructure roles.Extensive experience in Linux system installation, performance tuning, and troubleshootingExpertise in troubleshooting distributed GPU workloadsDeep knowledge around GPU optimization and performance Proficiency in Python scripting and automation frameworks CUDA ...

Senior Lead Oracle Fusion Cloud Integration & Extension Consultant role

Hiring Organisation
Version 1
Location
Birmingham, UK
Employment Type
Full-time
transformations • Implement robust error handling, replay, recovery and operational support patterns covering technical failures, business validation failures, rejected records and downstream availability issues. • Support performance tuning for high-volume integrations, including batching, pagination, payload optimisation, parallel processing and appropriate use of asynchronous patterns. • Implement secure integration patterns using … technical and business error-handling frameworks, including logging, notification, retry, replay and reconciliation support. • Experience supporting high-volume or business-critical integration processing, including performance tuning and operational support considerations. • Ability to produce clear technical design documents, mapping specifications, test evidence, deployment instructions and support handover material. • Experience ...

Senior Lead Oracle Fusion Cloud Integration & Extension Consultant role

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
transformations • Implement robust error handling, replay, recovery and operational support patterns covering technical failures, business validation failures, rejected records and downstream availability issues. • Support performance tuning for high-volume integrations, including batching, pagination, payload optimisation, parallel processing and appropriate use of asynchronous patterns. • Implement secure integration patterns using … technical and business error-handling frameworks, including logging, notification, retry, replay and reconciliation support. • Experience supporting high-volume or business-critical integration processing, including performance tuning and operational support considerations. • Ability to produce clear technical design documents, mapping specifications, test evidence, deployment instructions and support handover material. • Experience ...

L3 Network Engineer

Hiring Organisation
Claranet
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
support, configuration management, and lifecycle maintenance across the network estate for financial services clients. The role focuses on complex incident resolution, change execution, and performance optimisation for SDWAN, WAN, LAN/WLAN, VPN/SASE, and load-balancing environments, ensuring all activities meet stringent regulatory, security, and compliance standards. … audit trails Support onboarding of new sites/services using Zero-Touch Provisioning (ZTP) and Infrastructure-as-Code pipelines Manage routing policies, QoS, wireless performance tuning, and load balancer configuration updates Collaborate with vendor management teams on escalated transport or device issues, ensuring regulatory requirements are met Financial ...

L3 Network Engineer

Hiring Organisation
Claranet
Location
Camden, Greater London, Covent Garden, United Kingdom
Employment Type
Permanent
support, configuration management, and lifecycle maintenance across the network estate for financial services clients. The role focuses on complex incident resolution, change execution, and performance optimisation for SDWAN, WAN, LAN/WLAN, VPN/SASE, and load-balancing environments, ensuring all activities meet stringent regulatory, security, and compliance standards. … audit trails Support onboarding of new sites/services using Zero-Touch Provisioning (ZTP) and Infrastructure-as-Code pipelines Manage routing policies, QoS, wireless performance tuning, and load balancer configuration updates Collaborate with vendor management teams on escalated transport or device issues, ensuring regulatory requirements are met Financial ...

Senior Azure Data Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
operational processes using SQL, Python, or PowerShell. Database Administration: Administer and manage SQL Server environments hosted on Azure VMs, handling security, backup/recovery, performance tuning, and access management. Platform Modernization: Support database migrations, system upgrades, and platform modernization initiatives. Governance & Security: Implement data quality controls, governance standards … Server development and administration skills, including hands-on experience managing SQL Server on Azure Virtual Machines. Database Expertise: Proven track record in database migration, performance tuning, backup/recovery, and security implementation. Scripting & Automation: Strong scripting abilities in SQL, Python, and/or PowerShell. Data Formats: Experience working ...

Senior Azure Data Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
operational processes using SQL, Python, or PowerShell. Database Administration: Administer and manage SQL Server environments hosted on Azure VMs, handling security, backup/recovery, performance tuning, and access management. Platform Modernization: Support database migrations, system upgrades, and platform modernization initiatives. Governance & Security: Implement data quality controls, governance standards … Server development and administration skills, including hands-on experience managing SQL Server on Azure Virtual Machines. Database Expertise: Proven track record in database migration, performance tuning, backup/recovery, and security implementation. Scripting & Automation: Strong scripting abilities in SQL, Python, and/or PowerShell. Data Formats: Experience working ...

Performance Architect

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£625 - £700/day - Inside IR35
Role/Job Titlke: Performance Architect Mode of working: Hybrid with 3-days onsite in London Duration: 12 Months (Likelihood of further extension Our client, working on behalf of the British postal service and courier company is urgently seeking a Performance Architect with extensive experience in Performance Architecture, Performance Engineering and System Optimization. The successful candidate will be responsible for defining and driving the performance strategy across the entire solution lifecycle, ensuring that applications and platforms are scalable, resilient, and capable of meeting business and operational demands. The role focuses on embedding performance ...

Cloud HPC Network Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
design, deployment and operation of a greenfield on-premises OpenStack private cloud environment. You will play a key role in building and evolving high-performance network infrastructure supporting HPC workloads, working across compute, storage and platform engineering teams to deliver a scalable, resilient and highly automated cloud platform. Location … private cloud and HPC environments Develop and support scalable Leaf-Spine network architectures using BGP, EVPN, VXLAN and ECMP Design networking solutions for high-performance compute, storage and latency-sensitive workloads Integrate physical networking infrastructure with OpenStack technologies including Neutron, OVN and ML2 Define network architectures supporting virtual machines ...

Cassandra Database Engineer

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£650 - £706 per day
associated technical design. Design for high availability, including active-active architecture, failover and disaster recovery . Build, configure and operationalise Cassandra clusters. Undertake performance tuning, capacity planning and production readiness activities. Manage cluster operations including node additions/decommissions, repairs, backups and recovery. Work closely with application, middleware … production environments Keyspace and table design Data modelling and partition-key design Replication factors and consistency Cassandra architecture and configuration Cluster operations and troubleshooting Performance tuning and capacity planning High availability, failover and disaster recovery CQL and Cassandra internals Linux administration and scripting Experience with technologies such ...

Remote Home Based Database Administrator

Hiring Organisation
4M Recruitment
Location
Midlands, Nechells, West Midlands (County), United Kingdom
Employment Type
Permanent
Salary
£55000 - £65000/annum
responsible for the design, implementation, management and maintenance of database systems ensuring they operate efficiently, securely and reliability. This will include database management, performance tuning, backup and recovery, upgrade, patch management and trouble shooting. The ideal candidate will have the following skills and experience: Oracle and PostgreSQL databases … Database management, performance tuning, backup and recovery, upgrade, patch management Problem solver Excellent attention to detail Good team player Relevant certifications (e.g., Oracle Certified Professional, Microsoft Certified: Azure Database Administrator) is a plus but not essential. Salary: £55,000 - £65,000 Excellent company benefits including bonus. ...

SAP ABAP EWM S/4 Hana Architect - UK

Hiring Organisation
Appcast
Location
London, UK
Fiori Apps• Strong knowledge in the ABAP runtime analysis tool (SE30), SQL Trace (ST05), System dump analysis (ST22) to analyse and improve runtime performance, performance tuning, troubleshooting, problem resolution and capacity planning.Preferred• Experience in Life science domain. • SAP S/4 EWM technical knowhow – high level … powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise, and ideas from our innovation ...