DemandTrendPermanent Performance Tuning Jobs in Central London

23 of 23 DemandTrendPermanent Performance Tuning Jobs in Central London

Senior Database Administrator

Central London, London, United Kingdom
DXC Technology
IT modernization, security, and analytics, DXC enables enterprises to thrive in a rapidly evolving digital landscape. Our clients rely on us to provide end-to-end solutions that improve performance, security, and scalability across their IT infrastructure. Job Summary: As a Senior Database Administrator (DBA) at DXC Technology, you will be responsible for designing, implementing, and maintaining robust database … solutions that support enterprise infrastructure services. This role involves working with cloud and on-premises databases, ensuring high availability, security, and performance while supporting database migrations, automation, and modernization efforts. You will collaborate with cross-functional teams to optimize database architectures and contribute to the continuous improvement of infrastructure services. Key Responsibilities: Lead and manage database infrastructure services, including … deployment, migration, and administration of databases (SQL, Oracle, PostgreSQL, etc.). Ensure high availability, security, and optimal performance of database environments. Support the development and execution of database infrastructure strategies and modernization projects. Monitor and maintain database health, backups, disaster recovery, and performance tuning. Collaborate with cross-functional teams to align database solutions with business and IT requirements. More ❯
Employment Type: Permanent
Posted:

Java Quantitative Developer Low Latency

City of London, London, United Kingdom
James Joseph Associates Limited
business is actively expanding as there is additional headcount for a number trade platform specialist Java Development with a focus on either/or Quantitative Development or low-latency performance optimization. You will be working on greenfield projects to build out and enhance their low latency trading systems. THE ROLE: Working in a fast-paced trading environment as a … tune trading strategies across both spot and derivative markets. Based directly on the trading floor, you will play a crucial role in enhancing execution logic, automating workflows, and ensuring performance at scale for a high-frequency, multi-exchange setup. You will focus on optimising every component of the trading stackincluding multi-threading, network communication, order processing, and execution logicto … achieve ultra-low latency and high throughput. Robust monitoring, alerting, and performance tracking ensure system reliability. The team has deep expertise in trading protocols, messaging systems, network architectures, and concurrent computing to support a complex, high-frequency trading landscape. KEY RESPONSIBILITIES: Build and refine algorithmic trading models for use across various digital asset exchanges Improve and maintain dynamic hedging More ❯
Employment Type: Permanent
Posted:

ServiceNow IRM Architect

City of London, London, United Kingdom
HCLTech
the-box capabilities, integrations, and strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex requirements, translating them into comprehensive … leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow solutions, showcasing platform capabilities and … addressing client requirements. Performance Tuning & Optimization: Identify and address performance bottlenecks, ensuring the scalability and optimal performance of ServiceNow applications. Advanced Scripting & Development: Possess expert-level experience with ServiceNow scripting (Server-side JavaScript, GlideRecord, GlideSystem, UI Policies, Business Rules, Client Scripts, Script Includes) and the development of custom applications. Agile Leadership: Guide agile development teams from More ❯
Posted:

ServiceNow IRM Architect

london (city of london), south east england, united kingdom
HCLTech
the-box capabilities, integrations, and strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex requirements, translating them into comprehensive … leveraging various integration methods (e.g., REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow solutions, showcasing platform capabilities and … addressing client requirements. Performance Tuning & Optimization: Identify and address performance bottlenecks, ensuring the scalability and optimal performance of ServiceNow applications. Advanced Scripting & Development: Possess expert-level experience with ServiceNow scripting (Server-side JavaScript, GlideRecord, GlideSystem, UI Policies, Business Rules, Client Scripts, Script Includes) and the development of custom applications. Agile Leadership: Guide agile development teams from More ❯
Posted:

Cisco Network Engineer

City of London, London, United Kingdom
HCLTech
Consulting Engineer (NCE) to design and implement next-generation VXLAN EVPN-based data center networks that support hypercomputing and AI infrastructure. This role is central to enabling the high-performance, low-latency environments required for multi-GPU clusters, distributed training pipelines, and scalable AI workloads. The ideal candidate will bring deep expertise in VXLAN, BGP, EVPN, RoCEv2, and fabric … a solid understanding of the networking demands of large-scale AI and HPC environments. Key Responsibilities: •Design, deploy, and manage VXLAN EVPN-based fabric networks supporting AI and high-performance computing workloads. •Build scalable spine-leaf architectures using Cisco Nexus 9000 or Arista switches, ensuring efficient Layer 2/Layer 3 segmentation and workload mobility. •Optimize network performance … virtualization platforms such as VMware NSX, KVM, and Hyper-V, as well as Kubernetes-based AI infrastructure. •Collaborate with compute, storage, and DevOps teams to ensure end-to-end performance across AI training, fine-tuning, inference, and ETL pipelines. •Drive network automation efforts using tools such as Python, Ansible, and Terraform, enabling Infrastructure-as-Code (IaC) for repeatable More ❯
Posted:

Cisco Network Engineer

london (city of london), south east england, united kingdom
HCLTech
Consulting Engineer (NCE) to design and implement next-generation VXLAN EVPN-based data center networks that support hypercomputing and AI infrastructure. This role is central to enabling the high-performance, low-latency environments required for multi-GPU clusters, distributed training pipelines, and scalable AI workloads. The ideal candidate will bring deep expertise in VXLAN, BGP, EVPN, RoCEv2, and fabric … a solid understanding of the networking demands of large-scale AI and HPC environments. Key Responsibilities: •Design, deploy, and manage VXLAN EVPN-based fabric networks supporting AI and high-performance computing workloads. •Build scalable spine-leaf architectures using Cisco Nexus 9000 or Arista switches, ensuring efficient Layer 2/Layer 3 segmentation and workload mobility. •Optimize network performance … virtualization platforms such as VMware NSX, KVM, and Hyper-V, as well as Kubernetes-based AI infrastructure. •Collaborate with compute, storage, and DevOps teams to ensure end-to-end performance across AI training, fine-tuning, inference, and ETL pipelines. •Drive network automation efforts using tools such as Python, Ansible, and Terraform, enabling Infrastructure-as-Code (IaC) for repeatable More ❯
Posted:

Cost Systems Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Venesky Brown
renewables, will support Britain to achieve Net Zero by 2050. Job Purpose/Overview: SZC Project Controls will serve as a centre of excellence, managing and strategically using delivery performance management information. Our team will enable successful delivery of SZC Project through proactive Project Controls that drives forward-looking solutions to continuously improve performance. As the Cost Systems Engineer … and action An advanced understanding of technologies in the context of a Cost management system configuration; database management, scripting, system integration, reporting tools, cloud computing, networking, system administration, security, performance tuning, and information retention. Perform routine analysis, and control activities, as directed Support the implementation of cost monitoring and control standards, techniques, systems, and reports Assist with baseline More ❯
Posted:

Cost Systems Engineer

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Venesky Brown
renewables, will support Britain to achieve Net Zero by 2050. Job Purpose/Overview: SZC Project Controls will serve as a centre of excellence, managing and strategically using delivery performance management information. Our team will enable successful delivery of SZC Project through proactive Project Controls that drives forward-looking solutions to continuously improve performance. As the Cost Systems Engineer … and action An advanced understanding of technologies in the context of a Cost management system configuration; database management, scripting, system integration, reporting tools, cloud computing, networking, system administration, security, performance tuning, and information retention. Perform routine analysis, and control activities, as directed Support the implementation of cost monitoring and control standards, techniques, systems, and reports Assist with baseline More ❯
Posted:

Senior DBA

WC1V, Holborn and Covent Garden, Greater London, United Kingdom
Claranet
and AI practice. You will play a key role in supporting and optimising MSSQL, MySQL, and Postgres database platforms across key strategic customer environments. From troubleshooting and monitoring to performance tuning, security, and database migrations, you will ensure the storage, processing, and quality of customer data while delivering large-scale data migration and modernisation projects. Key Responsibilities Optimise … Essential): Proven experience with MSSQL, MySQL, and Postgres database solutions. Strong knowledge of High Availability and Always On Availability Groups. Comprehensive understanding of indexing and optimisation techniques for database performance tuning. Experience in automating, monitoring, and managing databases and deployments using toolsets. Behavioural Competencies (Essential): Positive, collaborative, and customer-focused mindset. Eagerness to learn new technologies and mentor others. More ❯
Employment Type: Permanent
Posted:

Lead Systems Administrator - Linux

City of London, London, United Kingdom
Hybrid / WFH Options
REC SOLUTIONS LIMITED
openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯
Employment Type: Permanent, Work From Home
Posted:

Linux Sys Admin Manager

City of London, London, United Kingdom
Hybrid / WFH Options
REC SOLUTIONS LIMITED
openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯
Employment Type: Permanent, Work From Home
Posted:

Applications Operations Analyst

City of London, London, United Kingdom
Hybrid / WFH Options
Ryder Reid Legal
law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯
Posted:

Applications Operations Analyst

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Ryder Reid Legal
law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯
Posted:

Microsoft Power Platform Senior Architect - (Contract)

City of London, London, United Kingdom
HCLTech
automate business processes. Integrate Power Apps with various data sources using standard and premium connectors and develop custom connectors if necessary Implement security measures for Power platform solutions Perform performance tuning and optimization of Power Platform solutions Participate in the deployment of Power Platform solutions to higher environments (QA, UAT, Production) Implement and enhance robust ALM process for More ❯
Posted:

IT Infrastructure Administrator

City of London, London, England, United Kingdom
Deerfoot Recruitment Solutions Ltd
Responsibilities: Provide infrastructure support across Microsoft Azure, Microsoft 365, backup, and security platforms. Diagnose and resolve technical incidents with minimal disruption. Maintain and optimise infrastructure through patching, monitoring, and performance tuning. Manage and support enterprise security solutions (Fortinet, Microsoft Defender, Sentinel, Mimecast, etc.). Contribute to disaster recovery planning and testing. Document processes, incident resolutions, and technical procedures. Skills More ❯
Employment Type: Full-Time
Salary: £50,000 per annum
Posted:

eFX Development Lead - Director

City of London, London, United Kingdom
McCabe & Barton
A leading investment bank in Canary Wharf is seeking an experienced eFX Tech Lead to drive the design and enhancement of high-performance FX pricing and hedging systems. This is an excellent opportunity for a hands-on technologist to combine coding with leadership, delivering innovation in a fast-paced trading environment. Youll work closely with traders, quants, and global … latency pricing platforms (ideally C# or Java) Leadership experience managing and mentoring technical teams Strong C#/.NET skills (C++ a plus) with experience in multithreading, optimisation, and networking performance tuning Familiarity with trading connectivity protocols (e.g. FIX/SBE) and back-testing frameworks Knowledge of FX cash and NDF products, and experience with Windows or Linux in More ❯
Employment Type: Permanent
Posted:

Data Engineer

City of London, London, United Kingdom
Vallum Associates
Apache Spark (including Spark Streaming). Solid knowledge of Apache Airflow for pipeline orchestration. Exposure to infrastructure data analytics or monitoring data is highly preferred. Excellent problem-solving and performance tuning skills. More ❯
Posted:

Data Engineer

london (city of london), south east england, united kingdom
Vallum Associates
Apache Spark (including Spark Streaming). Solid knowledge of Apache Airflow for pipeline orchestration. Exposure to infrastructure data analytics or monitoring data is highly preferred. Excellent problem-solving and performance tuning skills. More ❯
Posted:

Data Engineer

City of London, London, United Kingdom
Oscar
meaningful challenges. What We’re Looking For: 3+ years of data engineering experience. Strong cloud engineering background. Deep understanding of modern data architecture, including robust SQL skills and database performance tuning. Experienced in orchestrating complex data workflows to manage scheduling, dependencies, and data quality in ELT/ETL pipelines. Familiarity with modern data warehouses and experience with orchestration tools. More ❯
Posted:

Data Engineer

london (city of london), south east england, united kingdom
Oscar
meaningful challenges. What We’re Looking For: 3+ years of data engineering experience. Strong cloud engineering background. Deep understanding of modern data architecture, including robust SQL skills and database performance tuning. Experienced in orchestrating complex data workflows to manage scheduling, dependencies, and data quality in ELT/ETL pipelines. Familiarity with modern data warehouses and experience with orchestration tools. More ❯
Posted:

Snowflake CoE Lead

City of London, London, United Kingdom
Omnis Partners
clients and sectors. You’ll work closely with technical squads, internal teams, and partners to build and scale a modern data capability —with a clear mandate to influence architecture, performance, security, and cost optimisation across the board. This is not a pure delivery or line management role — it’s for someone who wants to build IP , define methodology, coach … Define and lead Snowflake best practice across clients and internal teams ✅ Build repeatable assets, patterns, and frameworks (with an eye on reusability + commercial value) ✅ Guide squads on architecture, performance tuning, security, cost management ✅ Be the go-to Snowflake SME for our internal teams, partners, and clients ✅ Shape our internal Snowflake playbook and CoE vision You should have More ❯
Posted:

Data Engineer

Central London, London, United Kingdom
Hybrid / WFH Options
Singular Recruitment
collaborate with some of the most well-known footballers in the industry. This position offers significant opportunities for professional growth within sports analytics and the potential to impact sports performance through advanced technology, making it an ideal setting for those passionate about leveraging cutting-edge technology to make meaningful contributions in the world of sports analytics. Key responsibilities for … years industry experience in a Data Engineer role and a strong academic background Python & SQL: Advanced-level Python for data applications and high proficiency SQL for complex querying and performance tuning. ETL/ELT Pipelines: Proven experience designing, building, and maintaining production-grade data pipelines using Google Cloud Dataflow (Apache Beam) or similar technologies. GCP Stack: Hands-on expertise … experience building real-time data pipelines. DevOps & MLOps: Knowledge of Infrastructure as Code (Terraform), MLOps principles, and containerization (Docker, Kubernetes). What They Offer Work that impacts elite football performance and club-wide success Access to real-world sports data and performance analytics Flexible working options (hybrid/remote depending on role) Opportunity to grow with a digital More ❯
Employment Type: Permanent, Work From Home
Salary: £70,000
Posted:

DevOps Engineer (SC Cleared)

City of London, London, United Kingdom
RP International
standardization Build and manage CI/CD pipelines with Jenkins, GitHub Actions, or AWS Code Pipeline Perform administrative and troubleshooting tasks on Linux-based systems, including log analysis and performance tuning. Lead technical triage and root cause analysis for infrastructure-related issues Develop and deploy applications using Docker and AWS FARGATE Use CloudWatch, CloudTrail, and third-party tools like … Datadog for performance and cost efficiency Configure AWS networking (VPCs, TGWs), enforce governance via AWS Config and tagging policies Maintain architecture diagrams, SOPs, and collaborate across engineering and product teams Should this role speak to you, kindly send a copy of your latest CV to naushad.c@rpint.com More ❯
Posted:
Performance Tuning
Central London
10th Percentile
£70,000
25th Percentile
£82,500
Median
£85,000
75th Percentile
£95,000
90th Percentile
£108,500