Performance Tuning Jobs in London

76 to 97 of 97 Performance Tuning Jobs in London

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 ❯
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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 ❯
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Data Engineer

London, South East, England, United Kingdom
Oscar Technology
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 ❯
Employment Type: Full-Time
Salary: £50,000 - £65,000 per annum
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 ❯
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Snowflake CoE Lead

London Area, 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 ❯
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Data Modelling

London, United Kingdom
Ascendion
and engineers to ensure accurate translation of business needs into data solutions. Maintain data dictionaries, metadata, and documentation for consistency and reusability across the organization. Optimize data models for performance, scalability, and integration with existing systems. Ensure compliance with data governance, security, and quality standards. Support ETL and data integration processes by providing modeling inputs. Work on relational, dimensional … of RDBMS (Oracle, SQL Server, DB2, PostgreSQL, etc.) and familiarity with NoSQL databases. Good understanding of data warehousing, ETL processes, and BI tools. Hands-on experience with SQL and performance tuning. Strong analytical, problem-solving, and communication skills. Experience working in BFSI or enterprise-scale environments is a plus. Preferred: Exposure to cloud platforms (AWS, Azure, GCP) and their More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Data Modelling

London, United Kingdom
Ascendion
and engineers to ensure accurate translation of business needs into data solutions. Maintain data dictionaries, metadata, and documentation for consistency and reusability across the organization. Optimize data models for performance, scalability, and integration with existing systems. Ensure compliance with data governance, security, and quality standards. Support ETL and data integration processes by providing modeling inputs. Work on relational, dimensional … of RDBMS (Oracle, SQL Server, DB2, PostgreSQL, etc.) and familiarity with NoSQL databases. Good understanding of data warehousing, ETL processes, and BI tools. Hands-on experience with SQL and performance tuning. Strong analytical, problem-solving, and communication skills. Experience working in BFSI or enterprise-scale environments is a plus. Preferred: Exposure to cloud platforms (AWS, Azure, GCP) and their More ❯
Employment Type: Permanent, Contract
Posted:

Platform Engineer/SRE

Bromley, Greater London, Bromley Town, United Kingdom
Hybrid / WFH Options
Ascendion
position: Job Title: Platform Engineer/SRE Work Location: Bromley, UK (Hybrid – 3 days a week) Job Description: 15+ years’ experience in delivering large scale applications with focus on performance, scalability, security, and reliability. Experience in a highly Agile continuous integration and continuous deployment environment, preferably within a financial domain. Strong experience in Java/J2EE, Spring Boot, Mule … Experience with WebLogic or JBoss or Mule or tomcat application servers. Strong experience in Integration Technologies – Mule ESB & IDE or equivalent, previous Middleware experiences. Experience in monitoring, triaging and performance tuning. Experience in Splunk, Dynatrace or AppDynamics (APM tools). Knowledge of Test-Driven Development and Unit Testing (Cucumber/Litmus, JUnit) Able to contribute to automation, develop shared More ❯
Employment Type: Permanent, Contract
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:

Oracle BI Consultant

London, United Kingdom
Hybrid / WFH Options
Robert Half
requirements into technical specifications and BI solutions. Write, optimise, and maintain complex SQL queries for data extraction, transformation, and analysis. Develop and manage data models in OBIEE to ensure performance and scalability. Work with data warehouse teams to ensure data accuracy, availability, and consistency. Collaborate with business stakeholders to deliver actionable insights and reporting tools. Troubleshoot and resolve OBIEE … performance and data issues. Maintain documentation for reports, dashboards, and data flows. Profile The Oracle BI Consultant will have proven experience with Oracle Business Intelligence Enterprise Edition (OBIEE) - including RPD development, Answers, and Dashboards. Advanced proficiency in SQL, with a deep understanding of query optimisation and performance tuning. Strong understanding of data warehousing concepts and dimensional data modelling. More ❯
Employment Type: Contract, Work From Home
Posted:

DevOps Engineer (SC Cleared)

London Area, 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 ❯
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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 ❯
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High Performance Computing (HPC) Consultant

City of London, London, United Kingdom
Hybrid / WFH Options
Morson Talent
High Performance Computing (HPC) Consultant - Flexible Rate - Inside IR35 - Remote with occasional site attendance to Derby or Manchester. Join a cutting-edge British engineering company at the forefront of nuclear innovation, driving the UK's transition to zero carbon energy. As a High Performance Computing Consultant, you will play a pivotal role in designing and implementing advanced HPC … related to engineering design, with an emphasis on Computational Fluid Dynamics (CFD) and other nuclear-relevant simulation tools. Provide technical guidance and best practices for HPC deployment, scalability, and performance tuning. What We're Looking For: Proven experience in High Performance Computing design and implementation, including interactive environments, batch processing, and MPI. Expertise working across multiple operating systems More ❯
Employment Type: Contract
Posted:

High Performance Computing (HPC) Consultant

London, Mount Pleasant, United Kingdom
Hybrid / WFH Options
Morson Talent
High Performance Computing (HPC) Consultant - Flexible Rate - Inside IR35 - Remote with occasional site attendance to Derby or Manchester. Join a cutting-edge British engineering company at the forefront of nuclear innovation, driving the UK's transition to zero carbon energy. As a High Performance Computing Consultant, you will play a pivotal role in designing and implementing advanced HPC … related to engineering design, with an emphasis on Computational Fluid Dynamics (CFD) and other nuclear-relevant simulation tools. Provide technical guidance and best practices for HPC deployment, scalability, and performance tuning. What We're Looking For: Proven experience in High Performance Computing design and implementation, including interactive environments, batch processing, and MPI. Expertise working across multiple operating systems More ❯
Employment Type: Contract
Posted:

ServiceNow Developer

London, United Kingdom
Damia Group Ltd
technical solutions. Participate in Agile development cycles, including sprint planning, reviews, and retrospectives. Ensure solutions follow ServiceNow best practices, coding standards, and platform governance. Support platform upgrades, patching, and performance tuning. Troubleshoot and resolve technical issues and defects. Required qualifications Experience developing on the ServiceNow platform in a professional setting. Proficiency in JavaScript, Glide API, and ServiceNow development tools. … Qualifications ServiceNow Certified System Administrator (CSA). One or more Certified Implementation Specialist (CIS) certifications (e.g., SPM, ITSM, HRSD, CSM). Experience with Flow Designer, App Engine Studio, or Performance Analytics. Exposure to Agile/Scrum methodologies. SC Cleared ServiceNow/SNOW Developer - 3-6 months - £400-480pd Inside IR35 - London (Hybrid) Damia Group Limited acts as an More ❯
Employment Type: Contract
Rate: £400 - £480 per day
Posted:

Reliance Support Engineer

London, United Kingdom
Hybrid / WFH Options
Queen Square Recruitment Limited
collaborating with utilities and system operators to design, implement, and support mission-critical systems. Youll play a key part in developing, configuring, testing, and maintaining PSA solutions, ensuring reliable performance in live environments. Key Responsibilities Develop and deliver Power Systems Application software in line with project and product commitments. Work on functional specifications, design, coding, testing, integration, and application … and upgrades on live systems. Prior experience in real-time or mission-critical environments. Desirable Skills Experience working in energy/utilities domains. Additional expertise in scripting, debugging, and performance tuning. Familiarity with regulated or compliance-driven environments. Why Apply? Work on advanced, mission-critical PSA systems. Gain hands-on experience with Reliance and modern integration technologies. Contribute to More ❯
Employment Type: Contract, Work From Home
Posted:

Cloud / Virtualization Specialist

London, United Kingdom
Oscar Associates (UK) Limited
environments and hybrid cloud platforms. Implement and manage thin provisioning policies to reduce storage waste and improve utilisation. Proactively monitor and optimise virtual machine disk usage , including rightsizing and performance tuning. Support hybrid infrastructure by managing storage across on-premise and cloud environments (e.g., Azure, AWS). Work with infrastructure, platform, and DevOps teams to ensure consistent storage strategies … cloud or multi-cloud environments. Hands-on with SAN/NAS , storage tiering, and virtualised storage arrays. Good scripting/automation skills (e.g., PowerShell, Python). Strong troubleshooting and performance analysis capabilities. Additional Information: On-site only: 5 days per week in Central London. Inside IR35: This role falls within IR35 legislation and will require working through an approved More ❯
Employment Type: Permanent
Salary: Up to £600 per day
Posted:

Site Reliability Engineer

London, United Kingdom
Hybrid / WFH Options
Rise Technical Recruitment Limited
In this role you'll take ownership of platform reliability, resilience engineering, and incident management across cutting-edge cloud infrastructure. You'll play a key role in ensuring uptime, performance, and continuous improvement of core systems. The ideal candidate will be an experienced Site Reliability Engineer with a deep background in AWS, Kubernetes (EKS), Terraform, and monitoring/eventing … tools. You'll have a strong grasp of application-level troubleshooting, chaos engineering, and performance tuning. This is a fantastic opportunity to work in a modern DevOps environment where innovation is encouraged, personal development is supported, and technical impact is real. The Role: Manage and optimise AWS and Kubernetes (EKS) infrastructure Implement resilience strategies and conduct chaos engineering experiments … Monitor and maintain Kafka clusters for performance and reliability Respond to and resolve application-level production incidents The Person: 5+ years in SRE, DevOps, or infrastructure engineering Strong experience with AWS, EKS/Kubernetes, and Terraform Familiar with Kafka and observability tools like Datadog or Grafana Able to troubleshoot issues across infrastructure and application layers Reference number: BBBH259300 To More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

ServiceNow Developer

London, United Kingdom
Synergize Consulting Ltd
technical solutions. Participate in Agile development cycles, including sprint planning, reviews, and retrospectives. Ensure solutions follow ServiceNow best practices, coding standards, and platform governance. Support platform upgrades, patching, and performance tuning. Troubleshoot and resolve technical issues and defects. Required qualifications Experience developing on the ServiceNow platform in a professional setting. Proficiency in JavaScript, Glide API, and ServiceNow development tools. … Qualifications ServiceNow Certified System Administrator (CSA). One or more Certified Implementation Specialist (CIS) certifications (eg, SPM, ITSM, HRSD, CSM). Experience with Flow Designer, App Engine Studio, or Performance Analytics. Exposure to Agile/Scrum methodologies. MOD SC Mandatory More ❯
Employment Type: Contract
Rate: GBP 480 Daily
Posted:

Network Specialist

Battersea, London, United Kingdom
Tenth Revolution Group
Role Seeking a highly experienced networking professional to support and enhance data centre infrastructure. The successful candidate will work closely with internal teams to design, build, and maintain high-performance, secure networking systems that support core business services. This role blends strategic thinking with hands-on technical execution, offering the opportunity to make a visible impact across the organization. … Meraki). Collaborate with systems/platform teams for scalable deployments. Ensure network security, redundancy, and compliance. Document network topology, standards, and troubleshooting procedures. Support migrations, incident response, and performance tuning. Candidate Profile Essential Skills & Experience: Proven experience in data centre networking. Hands-on with MPLS, VPLS, and cross-connects. Strong routing protocol knowledge (OSPF, BGP). Firewall configuration More ❯
Employment Type: Contract
Rate: £350 - £600/day Private Medical Care
Posted:

Network Specialist

South West London, London, England, United Kingdom
Tenth Revolution Group
Role Seeking a highly experienced networking professional to support and enhance data centre infrastructure. The successful candidate will work closely with internal teams to design, build, and maintain high-performance, secure networking systems that support core business services. This role blends strategic thinking with hands-on technical execution, offering the opportunity to make a visible impact across the organization. … Meraki). Collaborate with systems/platform teams for scalable deployments. Ensure network security, redundancy, and compliance. Document network topology, standards, and troubleshooting procedures. Support migrations, incident response, and performance tuning. Candidate Profile Essential Skills & Experience: Proven experience in data centre networking. Hands-on with MPLS, VPLS, and cross-connects. Strong routing protocol knowledge (OSPF, BGP). Firewall configuration More ❯
Employment Type: Contractor
Rate: £350 - £600 per day
Posted:

React Developer - Fixed Income eTrading

London, United Kingdom
Vertus Partners
cutting edge Front End systems for Fixed Income eTrading, including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support Real Time trading and analytics. Key Responsibilities Design and develop responsive, low-latency Front End trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and Back End engineers to deliver seamless UI experiences. Contribute to architectural decisions and Front End performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering Front End applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI design More ❯
Employment Type: Permanent
Salary: GBP 85,000 - 140,000 Annual
Posted:
Performance Tuning
London
10th Percentile
£56,250
25th Percentile
£67,500
Median
£85,000
75th Percentile
£100,000
90th Percentile
£126,250