26 to 50 of 212 Performance Tuning Jobs in London

platform is an essential platform in the life of millions of University students across the globe. In this role, you will apply your Software Engineering experience to enhance system performance and reliability, as well as building internal systems and capabilities that eliminate manual work through automation. You'll be joining our Platforms teams with globally-dispersed Site Reliability and … maintain monitoring/alerting/logging systems to identify and respond to incidents Ensure scalability and efficiency of cloud infrastructure and systems to handle traffic and data growth Conduct performance tests to identify and remediate bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review and tune databases to ensure … high availability and performance Collaborate with product engineering teams to design/build fit-for-purpose and observable software Required Skills and Experience: Proven experience in a SRE/DevOps/Platform Engineering role and having previously worked with.Net, Azure and C# technologies. Proficiency in C# language – alongside knowledge of scripting languages like Bash, Python or PowerShell Production experience More ❯

proactive Solace Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like Prometheus and Grafana . Key … maintain Solace PubSub+ appliances and software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable messaging. Collaborate with development and … application support teams to troubleshoot message flow issues and integration problems. Perform capacity planning , scaling, and tuning of Solace infrastructure to meet current and future demand. Automate routine maintenance tasks and support continuous improvement of operational processes. Implement and maintain monitoring alerts, dashboards, and metrics to ensure visibility into the messaging layer. Ensure compliance with security policies and participate More ❯

proactive Solace Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like Prometheus and Grafana . Key … maintain Solace PubSub+ appliances and software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable messaging. Collaborate with development and … application support teams to troubleshoot message flow issues and integration problems. Perform capacity planning , scaling, and tuning of Solace infrastructure to meet current and future demand. Automate routine maintenance tasks and support continuous improvement of operational processes. Implement and maintain monitoring alerts, dashboards, and metrics to ensure visibility into the messaging layer. Ensure compliance with security policies and participate More ❯

proactive Solace Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like Prometheus and Grafana . Key … maintain Solace PubSub+ appliances and software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable messaging. Collaborate with development and … application support teams to troubleshoot message flow issues and integration problems. Perform capacity planning , scaling, and tuning of Solace infrastructure to meet current and future demand. Automate routine maintenance tasks and support continuous improvement of operational processes. Implement and maintain monitoring alerts, dashboards, and metrics to ensure visibility into the messaging layer. Ensure compliance with security policies and participate More ❯

proactive Solace Messaging Administrator to join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like Prometheus and Grafana . Key … maintain Solace PubSub+ appliances and software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable messaging. Collaborate with development and … application support teams to troubleshoot message flow issues and integration problems. Perform capacity planning , scaling, and tuning of Solace infrastructure to meet current and future demand. Automate routine maintenance tasks and support continuous improvement of operational processes. Implement and maintain monitoring alerts, dashboards, and metrics to ensure visibility into the messaging layer. Ensure compliance with security policies and participate More ❯

solutions, including data models, dashboards, and reports Develop datasets, measures (DAX), and visuals to support business insights Maintain data accuracy, integrity, and security within the Power BI environment Optimise performance of reports and dashboards for a seamless user experience Implement Power ON configurations, including workspaces, security, and sharing policies Effort Estimation & Project Delivery Estimate project effort, timeline, and resource … Acceptance Testing) and gather feedback for refinements Client Training & Support Conduct training sessions for end-users to drive adoption of Power ON solutions Provide post-implementation support, troubleshooting, and performance tuning Act as a trusted advisor to clients on Power ON strategies and future enhancements Qualifications Preferred Qualifications & Experience: Bachelor’s or Master’s degree in Mathematics, Computer … and Power Apps integration with Power BI Experience with non-Microsoft data sources (Snowflake, Oracle, PostgreSQL, MySQL, Synapse, Big Query) advantageous Row Level Security (Analysis Services, PowerBI.com, SQL Server) Performance optimisation (Partitioning, Understanding of columnar database concept, SQL indexing) Troubleshooting (SQL Profiler or other profiler tools, Tabular Editor, DAX Studio, Power BI datasets, RLS security) Business & Consulting Skills Strong More ❯

solutions, including data models, dashboards, and reports Develop datasets, measures (DAX), and visuals to support business insights Maintain data accuracy, integrity, and security within the Power BI environment Optimise performance of reports and dashboards for a seamless user experience Implement Power ON configurations, including workspaces, security, and sharing policies Effort Estimation & Project Delivery Estimate project effort, timeline, and resource … Acceptance Testing) and gather feedback for refinements Client Training & Support Conduct training sessions for end-users to drive adoption of Power ON solutions Provide post-implementation support, troubleshooting, and performance tuning Act as a trusted advisor to clients on Power ON strategies and future enhancements Qualifications Preferred Qualifications & Experience: Bachelor’s or Master’s degree in Mathematics, Computer … and Power Apps integration with Power BI Experience with non-Microsoft data sources (Snowflake, Oracle, PostgreSQL, MySQL, Synapse, Big Query) advantageous Row Level Security (Analysis Services, PowerBI.com, SQL Server) Performance optimisation (Partitioning, Understanding of columnar database concept, SQL indexing) Troubleshooting (SQL Profiler or other profiler tools, Tabular Editor, DAX Studio, Power BI datasets, RLS security) Business & Consulting Skills Strong More ❯

innovative solutions using automation and modern software practices Ensure applications meet security and compliance requirements Provide input on emerging technologies and drive best practice adoption Support testing, monitoring, and performance tuning to maintain high-availability services Essential Skills & Experience Strong software development background, ideally with cloud application delivery Proficiency in programming languages such as Python, React, or Go More ❯

patterns, and contribution to Kubrick’s internal knowledge base Line-manage and mentor developers within the team, supporting their professional growth and certifications (including SnowPro) Troubleshoot and tune query performance, storage usage, and cost efficiency across Snowflake accounts Act as a subject matter expert during consulting engagements, providing advice on best practices for data sharing, and integration with other … engineering or analytics, including designing and delivering enterprise grade data solutions Strong hands-on experience with Snowflake (or comparable cloud data warehouses like BigQuery, RedShift, Synapse) including data modelling, performance tuning and cost management Familiarity with SQL best practices, ELT patterns, and modern data transformation frameworks such as dbt Competence in at least one programming language (Python preferred More ❯

patterns, and contribution to Kubrick’s internal knowledge base Line-manage and mentor developers within the team, supporting their professional growth and certifications (including SnowPro) Troubleshoot and tune query performance, storage usage, and cost efficiency across Snowflake accounts Act as a subject matter expert during consulting engagements, providing advice on best practices for data sharing, and integration with other … engineering or analytics, including designing and delivering enterprise grade data solutions Strong hands-on experience with Snowflake (or comparable cloud data warehouses like BigQuery, RedShift, Synapse) including data modelling, performance tuning and cost management Familiarity with SQL best practices, ELT patterns, and modern data transformation frameworks such as dbt Competence in at least one programming language (Python preferred More ❯

patterns, and contribution to Kubrick’s internal knowledge base Line-manage and mentor developers within the team, supporting their professional growth and certifications (including SnowPro) Troubleshoot and tune query performance, storage usage, and cost efficiency across Snowflake accounts Act as a subject matter expert during consulting engagements, providing advice on best practices for data sharing, and integration with other … engineering or analytics, including designing and delivering enterprise grade data solutions Strong hands-on experience with Snowflake (or comparable cloud data warehouses like BigQuery, RedShift, Synapse) including data modelling, performance tuning and cost management Familiarity with SQL best practices, ELT patterns, and modern data transformation frameworks such as dbt Competence in at least one programming language (Python preferred More ❯

patterns, and contribution to Kubrick’s internal knowledge base Line-manage and mentor developers within the team, supporting their professional growth and certifications (including SnowPro) Troubleshoot and tune query performance, storage usage, and cost efficiency across Snowflake accounts Act as a subject matter expert during consulting engagements, providing advice on best practices for data sharing, and integration with other … engineering or analytics, including designing and delivering enterprise grade data solutions Strong hands-on experience with Snowflake (or comparable cloud data warehouses like BigQuery, RedShift, Synapse) including data modelling, performance tuning and cost management Familiarity with SQL best practices, ELT patterns, and modern data transformation frameworks such as dbt Competence in at least one programming language (Python preferred More ❯

ve transitioned from development into a hands-on support and automation role. The group oversees the market data systems that power real-time decision-making across asset classes — ensuring performance, stability, and reliability in one of the most demanding trading environments in the world. This is not a traditional support role. You’ll be deep in the code, scripting … developers to trace issues into the codebase and identify sustainable long-term solutions. Manage data flows, troubleshoot production pipelines, and maintain service availability across regions. Contribute to system enhancements, performance tuning, and process optimization for a wide range of asset classes. Ideal Profile Hands-on experience in market data production support (L1–L3) within a trading or financial More ❯

ecosystem and the ability to translate business needs into smart, scalable solutions. • Proven experience with Microsoft 365 and Power Platform (PowerApps, PowerAutomate, Dataverse) • Strong SQL skills, including data modeling, performance tuning, and ETL processes • Hands-on experience with SharePoint, Teams, and Exchange integration • Experience with Azure DevOps, API integration, and application lifecycle management • Excellent communication skills with the More ❯

ecosystem and the ability to translate business needs into smart, scalable solutions. • Proven experience with Microsoft 365 and Power Platform (PowerApps, PowerAutomate, Dataverse) • Strong SQL skills, including data modeling, performance tuning, and ETL processes • Hands-on experience with SharePoint, Teams, and Exchange integration • Experience with Azure DevOps, API integration, and application lifecycle management • Excellent communication skills with the More ❯

ecosystem and the ability to translate business needs into smart, scalable solutions. • Proven experience with Microsoft 365 and Power Platform (PowerApps, PowerAutomate, Dataverse) • Strong SQL skills, including data modeling, performance tuning, and ETL processes • Hands-on experience with SharePoint, Teams, and Exchange integration • Experience with Azure DevOps, API integration, and application lifecycle management • Excellent communication skills with the More ❯

ecosystem and the ability to translate business needs into smart, scalable solutions. • Proven experience with Microsoft 365 and Power Platform (PowerApps, PowerAutomate, Dataverse) • Strong SQL skills, including data modeling, performance tuning, and ETL processes • Hands-on experience with SharePoint, Teams, and Exchange integration • Experience with Azure DevOps, API integration, and application lifecycle management • Excellent communication skills with the More ❯

at Working level: Advanced SQL proficiency : expertise in writing complex, highly-performant SQL queries, including common table expressions (CTEs), window functions, and complex joins. Experience with query optimization and performance tuning on relational databases like PostgreSQL, MySQL, or similar Cloud data ecosystem (AWS) : hands-on experience with core AWS data services. Key services include: S3 for data lake More ❯

at Working level: Advanced SQL proficiency : expertise in writing complex, highly-performant SQL queries, including common table expressions (CTEs), window functions, and complex joins. Experience with query optimization and performance tuning on relational databases like PostgreSQL, MySQL, or similar Cloud data ecosystem (AWS) : hands-on experience with core AWS data services. Key services include: S3 for data lake More ❯

. Full-stack skills in Core Java and REST APIs. Practical knowledge of multi-threading, event-driven programming, and memory optimization. Strong problem-solving and analytical abilities. Knowledge of performance tuning techniques. Familiarity with enterprise SDLC tools like JIRA and Confluence. Experience with CI/CD tools such as Git, Maven/Gradle, Jenkins/Bamboo, GitLab. Shell More ❯

scalable reporting solutions. Support critical production processes, including daily T+1 and month-end P&L workflows. Stay ahead of database technologies and continuously evaluate new data ingestion methods and performance optimizations. Provide on-call coverage for critical services, particularly in Asian trading hours when required. Train & mentor other developers in data engineering best practices. Requirements Strong programming skills in … modeling, ETL pipelines, and large datasets. 5+ years of experience working with P&L reporting, financial analytics, or similar data-driven workflows in a financial institution. Experience with database performance tuning, query optimization, and data pipeline automation. A deep understanding of financial markets, trading workflows, and risk analytics is highly beneficial. Ability to work independently and within a … small, high-performance team in a fast-paced environment. Master’s in Computer Science, Engineering, or a related quantitative field. My client anticipates to pay a strong performer upwards of £350k year 1 total compensation package. As well as a market-leading compensation package, they offer exceptional benefits including a top-tier healthcare package, fully subsidised qualifications plus breakfast More ❯

scalable reporting solutions. Support critical production processes, including daily T+1 and month-end P&L workflows. Stay ahead of database technologies and continuously evaluate new data ingestion methods and performance optimizations. Provide on-call coverage for critical services, particularly in Asian trading hours when required. Train & mentor other developers in data engineering best practices. Requirements Strong programming skills in … modeling, ETL pipelines, and large datasets. 5+ years of experience working with P&L reporting, financial analytics, or similar data-driven workflows in a financial institution. Experience with database performance tuning, query optimization, and data pipeline automation. A deep understanding of financial markets, trading workflows, and risk analytics is highly beneficial. Ability to work independently and within a … small, high-performance team in a fast-paced environment. Master’s in Computer Science, Engineering, or a related quantitative field. My client anticipates to pay a strong performer upwards of £350k year 1 total compensation package. As well as a market-leading compensation package, they offer exceptional benefits including a top-tier healthcare package, fully subsidised qualifications plus breakfast More ❯

scalable reporting solutions. Support critical production processes, including daily T+1 and month-end P&L workflows. Stay ahead of database technologies and continuously evaluate new data ingestion methods and performance optimizations. Provide on-call coverage for critical services, particularly in Asian trading hours when required. Train & mentor other developers in data engineering best practices. Requirements Strong programming skills in … modeling, ETL pipelines, and large datasets. 5+ years of experience working with P&L reporting, financial analytics, or similar data-driven workflows in a financial institution. Experience with database performance tuning, query optimization, and data pipeline automation. A deep understanding of financial markets, trading workflows, and risk analytics is highly beneficial. Ability to work independently and within a … small, high-performance team in a fast-paced environment. Master’s in Computer Science, Engineering, or a related quantitative field. My client anticipates to pay a strong performer upwards of £350k year 1 total compensation package. As well as a market-leading compensation package, they offer exceptional benefits including a top-tier healthcare package, fully subsidised qualifications plus breakfast More ❯

scalable reporting solutions. Support critical production processes, including daily T+1 and month-end P&L workflows. Stay ahead of database technologies and continuously evaluate new data ingestion methods and performance optimizations. Provide on-call coverage for critical services, particularly in Asian trading hours when required. Train & mentor other developers in data engineering best practices. Requirements Strong programming skills in … modeling, ETL pipelines, and large datasets. 5+ years of experience working with P&L reporting, financial analytics, or similar data-driven workflows in a financial institution. Experience with database performance tuning, query optimization, and data pipeline automation. A deep understanding of financial markets, trading workflows, and risk analytics is highly beneficial. Ability to work independently and within a … small, high-performance team in a fast-paced environment. Master’s in Computer Science, Engineering, or a related quantitative field. My client anticipates to pay a strong performer upwards of £350k year 1 total compensation package. As well as a market-leading compensation package, they offer exceptional benefits including a top-tier healthcare package, fully subsidised qualifications plus breakfast More ❯

Tech Stack & Experience Essential Strong full-stack background: TypeScript with React (or similar), Python (FastAPI) or Node.js (NestJS). Data: PostgreSQL preferred; solid experience with schema design, migrations, and performance tuning. Cloud/DevOps: Azure or AWS, Docker, GitHub Actions, IaC tools (Terraform/Pulumi). Security-first mindset: OAuth/OIDC, token auth, logging, and secure architecture. Testing More ❯