1 to 25 of 220 Performance Tuning Jobs in London

Senior Performance Support Specialist

Hiring Organisation
Unit4
Location
Greater London, United Kingdom
Employment Type
Full Time
people by providing them with the right tools to achieve the autonomy they need - it's what makes us unique Key Tasks and Responsibilities Performance tuning of Unit4 Financials by Coda Pre and Post Go Live. Troubleshoot performance issues across new implementations (Project) and existing implementations … Unit4 Financials by Coda, this includes Technical and Application aspects. Develop enhanced, proactive monitoring, detection and remediation of performance issues. Develop proactive, continuous performance tuning and processes to maintain optimal performance levels. Comply with the Company's information security requirements and all Company business procedures ...

DB2 Database Administrator (DBA)

Location
Greater London, England, United Kingdom
resolution of database-related incidents and problems. Demonstrate strong analytical and problem-management capabilities to resolve complex technical issues. Provide consulting services on database performance monitoring, tuning, capacity planning, and optimization. Coordinate with development teams during project implementations and release cycles. Participate in infrastructure modernization, technical initiatives … Required Qualifications Typically 8-12 years Hands-on experience in IBM z/Mainframe environments with strong expertise in DB2 Database Administration, database support, performance tuning, security implementation, automation, disaster recovery, and production support. Deep understanding of Db2 database architecture, administration, backup and recovery procedures. Experience in production ...

ServiceNow GRC Architect

Location
Greater London, England, United Kingdom
integrations, and innovative customizations. Technical Advisory & Governance Act as a subject matter expert and trusted advisor to clients and internal teams on platform capabilities, performance, scalability, and security. Establish governance frameworks to ensure technical consistency, integrity, and adherence to platform best practices. Requirements Analysis & Solution Design Collaborate with business … SOAP, JDBC, and MID Server technologies. Technical Oversight & Quality Assurance Provide technical direction to development teams, ensuring compliance with design patterns, coding standards, and performance guidelines. Conduct code reviews, ensure solution quality, and oversee technical delivery milestones. Prototyping & Demonstrations Lead the creation of technical prototypes and conduct platform demonstrations ...

Lead Performance Test Engineer

Location
Greater London, England, United Kingdom
# Lead Performance Test Engineer Apply now## **About the job you're considering**We are seeking a Lead Performance Engineer to lead a team of performance engineers delivering assurance across complex client programmes. You will set the performance strategy, define and agree non-functional requirements … quality gates, and ensure systems are scalable, resilient and ready for production.Working with engineering, architecture, DevOps, SRE, cloud and business teams, you will embed performance engineering throughout the delivery lifecycle**Hybrid working**: The places that you work from day to day will vary according to your role, your needs ...

DB2 for z/OS Systems Programmer

Location
Greater London, England, United Kingdom
supporting a large database estate comprising 50+ DB2 subsystems across multiple mainframe platforms and geographies. This role is critical to ensuring the availability, performance, integrity, maintenance, and security of the organization's DB2 infrastructure. You will work closely with application development, infrastructure, operations, and security teams to maintain highly … available and secure DB2 environments while supporting strategic database initiatives, performance optimization, disaster recovery planning, and technology upgrades. The ideal candidate will possess strong technical expertise, excellent troubleshooting capabilities, and the ability to operate independently within a complex enterprise environment. In this role, You will Install, configure, upgrade ...

LEAD ADMINISTRATOR L1(CONTRACT)

Location
Greater London, England, United Kingdom
implement, and maintain Sybase ASE & Sybase IQ database instances, including installation, configuration, upgrades, and patching across Linux/Unix platforms. Perform Sybase & IQ database performance tuning, query optimization, index management, and capacity planning to ensure optimal throughput and minimal downtime. Perform routine Sybase database maintenance activities like housekeeping … restore strategies using dump/load, replication, or backup server. Maintain large-scale IQ databases with terabyte-level storage and ensure optimal bulk loading performance using BCP, IQ load utilities, or ETL tools. Configure and support high-availability solutions such as Sybase Replication Server, Warm Standby, MSA, Failover Clustering ...

Database Engineer

Hiring Organisation
Talent-Relay Limited
Location
South West London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£62,614
position . Youll work across Oracle, PostgreSQL and NoSQL platforms , helping build, automate and optimise highly available enterprise database environments. If you enjoy automation, performance tuning, modern DevOps and solving complex database challenges , this role offers the opportunity to work at significant enterprise scale. Key Responsibilities: Engineer … Cassandra, MongoDB and/or Couchbase . Automate database provisioning, configuration and deployments. Implement Infrastructure as Code and CI/CD practices. Optimise database performance, queries and indexing. Support high availability, replication and resilience. Troubleshoot complex production issues and perform root-cause analysis. Partner with developers, architects and infrastructure ...

Principal Engineer (AWS & Java)

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
guide effective development approaches by the engineering teams. Lead the implementation of the most complex and business‐critical changes, setting the standard for quality, performance, and maintainability. Provide hands‐on expertise in Java‐based systems, including concurrency, performance tuning, memory management, and API design. Non‐Functional Ownership … capacity management, ensuring the platform performs predictably under variable and peak loads. Provide deep expertise in working with large databases and data stores, including performance optimisation, data access patterns, and operational scaling. Problem Solving & Technical Decision SupportSolve the most complex and ambiguous technical problems, particularly those spanning multiple components ...

Senior ETF Engineer, Investment Technology

Hiring Organisation
Invesco
Location
London, UK
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). … services, APIs, and microservices supporting portfolio analytics, optimization workflows, and data pipelinesDesign 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 ...

Oracle Database Engineer - up to £90,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £90,000 per annum
hire an experienced Oracle Database Engineer for their database and platform engineering team. This is a hands-on position covering Oracle administration, automation and performance engineering across large-scale Exadata and cloud environments, including Autonomous Exadata Cloud@Customer. The Oracle Database Engineer role suits an Oracle professional who wants … move beyond routine administration into platform engineering: building automation that removes manual overhead, tuning at scale, and owning multi-tenant database architecture across mission-critical systems. About the role - Oracle Database Engineer (Oracle DBA): Build automation tooling and platform solutions using Ansible and scripting to reduce manual work across ...

Senior Data Engineer

Location
Greater London, England, United Kingdom
using Azure Data Factory and Databricks,replacing legacy SSIS pipelines. Identifying opportunities toharden and automate manual steps within the Finance Close workflow ConductT-SQL performance tuning across on-prem and cloud environments.ConductT-SQL performance tuning across on-prem and cloud environments. Collaboratewith IT and business stakeholders ...

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 ...

DB2 Database Administrator (DBA)

Hiring Organisation
NTT
Location
London, UK
Employment Type
Full-time
resolution of database-related incidents and problems. Demonstrate strong analytical and problem-management capabilities to resolve complex technical issues. Provide consulting services on database performance monitoring, tuning, capacity planning, and optimization. Coordinate with development teams during project implementations and release cycles. Participate in infrastructure modernization, technical initiatives … standards. Required QualificationsTypically 8-12 years Hands-on experience in IBM z/Mainframe environments with strong expertise in DB2 Database Administration, database support, performance tuning, security implementation, automation, disaster recovery, and production support. Deep understanding of Db2 database architecture, administration, backup and recovery procedures. Experience in production ...

Principal Engineer

Location
Greater London, England, United Kingdom
production-grade Lakehouse implementations using technologies such as Unity Catalog, Delta Live Tables, MLflow and Lakeflow. Own the hardest technical problems on an engagement - performance tuning, complex migrations, scale and reliability. Set engineering standards for code quality, testing, observability and reusability across delivery teams. Build reusable frameworks, accelerators … experience delivering enterprise data platforms or analytics solutions. Strong commercial experience building and delivering Databricks solutions in production. Deep expertise in Apache Spark, including performance tuning and optimisation at scale. Expert-level Python and SQL, with a track record of writing production-quality, well-tested code. Strong understanding ...

Chief Architect - Data Engineering (Databricks Practice)

Location
Greater London, England, United Kingdom
prem estates) and cloud transformation projects to Databricks on Azure/AWS/GCP, including assessment, wave planning, and cutover. Stay hands-on: performance tuning, debugging, code and design reviews, and setting engineering standards for the team. Presales & Stakeholder Management Own and defend enterprise solution designs in front … data engineering/architecture, 3+ on Databricks at enterprise scale, and still happiest when hands are on the keyboard. Deep Spark expertise — architecture, performance tuning, streaming, debugging, the advanced stuff that separates architects from diagram-drawers. Lakehouse fluency — Medallion architecture, Delta Lake, Unity Catalog, governance, orchestration (Workflows ...

Database/Data Engineer

Hiring Organisation
Salt
Location
London, United Kingdom
Employment Type
Temporary
Salary
Up to £230.00 per day + Inside IR35
configure database environments across development through to production Automate database provisioning, configuration and deployments Integrate database changes into CI/CD pipelines Support performance tuning, query optimisation and complex troubleshooting Engineer for high availability, resilience, security and recovery Support database migrations, upgrades and modernisation initiatives Work closely with … Looking For Strong hands-on Oracle and PostgreSQL experience Experience with at least one of Cassandra, MongoDB or Couchbase Strong database engineering, performance tuning and troubleshooting skills Automation experience using Terraform, Ansible, Python and/or Shell Experience with Infrastructure as Code, CI/CD and Git Experience ...

Database/Data Engineer

Hiring Organisation
Salt Search
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£230.00 per day
configure database environments across development through to production Automate database provisioning, configuration and deployments Integrate database changes into CI/CD pipelines Support performance tuning, query optimisation and complex troubleshooting Engineer for high availability, resilience, security and recovery Support database migrations, upgrades and modernisation initiatives Work closely with … Looking For Strong hands-on Oracle and PostgreSQL experience Experience with at least one of Cassandra, MongoDB or Couchbase Strong database engineering, performance tuning and troubleshooting skills Automation experience using Terraform, Ansible, Python and/or Shell Experience with Infrastructure as Code, CI/CD and Git Experience ...

Cassandra Database Engineer

Hiring Organisation
Robert Walters
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£650.00 - £706.00 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 ...

Java Software Engineer

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80,000
understand requirements and resolve issues Creating and maintaining low-level technical designs and documentation Supporting CI/CD and software delivery activities Debugging, performance tuning and improving application reliability Participating in Agile ceremonies and sprint activities Contributing to digital transformation and wider engineering projects What we're looking … experience with: Java and associated technologies Spring Boot Unit testing, test automation and TDD DevOps tooling and CI/CD Debugging, profiling and performance tuning Agile software delivery Experience with Docker or other container technologies would also be beneficial. We are looking for someone with strong problem-solving ...

SAP ABAP S/4 Hana Architect - UK

Hiring Organisation
Infosys Technologies
Location
London, UK
Employment Type
Full-time
etc. and SOAP . Expertise in Adobe form development(both Classical, Fragment based) with Java scripting knowledge Expert in Fiori related troubleshooting, AIF, Performance tunning Techno Functional expertise in SAP Concur, Accounts Payable/Receivables, Billing and Invoicing Hands on experience with good knowledge of S/4 HANA … 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. Previous experience for working in Pharmaceutical vertical Multilingual proficiency ...

SAP ABAP EWM S/4 Hana Architect - UK

Hiring Organisation
Infosys Technologies
Location
London, UK
Employment Type
Full-time
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 ...

MySQL DBA - Fintech

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Must Ideally Have:·MySQL and MariaDB on Linux·InnoDB·Database installations, backups, restores, replication·Scripting languages – Python and Bash·Stored procedures, SQL tuning·Performance Tuning·Capacity planning·Transaction processingYou will be joining a progressive and exciting company committed to excellence. They offer an excellent working environment with ...

SAP ABAP EWM S/4 Hana Architect - UK

Location
City of Westminster, England, United Kingdom
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 … analytical skills A high degree of initiative and flexibility High customer orientation High quality awareness Excellent verbal and written communication skills. 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 ...

Site Reliability Engineer / Production Support

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
level all key system flows, the services, partners, and teams in play, and how to actively debug an incident. Lead reliability engineering: resilience patterns, performance tuning, capacity planning. Facilitate post-incident reviews and track actions to completion. Use AI tools for automated alert correlation, root cause analysis … observability tools, alerting, logging, and distributed systems debugging. Experience managing and working with offshore support teams. Hands-on experience with reliability engineering: resilience patterns, performance tuning, capacity planning. Active use of AI tools for incident triage, automation, and runbook generation. Ability to understand complex system flows across multiple ...

Java Engineer - Low Latency

Location
Greater London, England, United Kingdom
Description We’re looking for Java Developers with experience building low-latency systems to join us on a high-performance trading and real-time data project, for a major financial institution. You’ll work on mission-critical applications where performance, scalability, and reliability truly matter — the kind … opportunity to bring world-class engineering principles to projects at the very heart of modern finance. Your work will focus on writing and tuning high-performance Java frameworks, improving throughput and latency, and applying event-driven, microservice-based architectures. You’ll collaborate closely with other talented engineers, helping ...