1 to 25 of 210 Performance Tuning Jobs in London

who will be responsible for implementation, support and maintenance of mission critical database environments. The administration of these environments includes clustering, storage, securing, monitoring, performance tuning, troubleshooting, and disaster recovery. This person will help manage and support current and future database and storage environments and initiatives, and proactively … up with the dynamic and growing business needs of DRW. Responsibilities: Proactively manage and optimize various database platforms and related OS environments Perform database performance and query tuning Implement and maintain production and non-production databases Perform database backups, restores, log shipping, mirroring and replication, etc. Work with … system engineering team on database server installations, configurations, system performance tuning and capacity planning Collaborate with development teams on database design, implementation and usage optimization Respond to production and business-critical issues and needs Position Requirements: 5+ years of production Oracle database engineering experience 5+ years of production More ❯

Mainframe Performance QA Engineer BCP Special Pool IRC248855 Job: IRC248855 Location: United Kingdom - London Designation: Lead Test Engineer Experience: 5-10 years Function: Quality Assurance Skills: DB2, IBM IMS, JCL, Performance testing/tuning, z/OS Work Model: Remote, Hybrid The client is a world-leading … years of hands-on experience: Good knowledge of IMS (log (IMS type 07 and Type 56FA) and ABEND analysis, DC Monitor (DFSUTR20), STROBE, Performance Analyzer, IMSASAP/GPAR, ability to read SYSUDUMPs, etc.) Performance tuning techniques: OS (z/OS,) Database (IMS, DB2) with focus on IMS … tuning Strong expertise in performance testing and tuning Strong technical QA experience Excellent skills in defining, documenting, and analyzing test strategy, test plan, test cases, and test results Excellent test case execution and troubleshooting skills Testing proficiency (release-specific testing, regression testing) Testing in a Waterfall environment More ❯

and maintain PostgreSQL databases hosted on Amazon Aurora and RDS. The ideal candidate will have extensive experience in database architecture, cloud-native database solutions, performance tuning, and implementing best practices for availability, scalability, and security. This role requires hands-on technical expertise and strong collaboration with developers, architects … Design and implement database schemas, partitioning strategies, and indexing solutions. Ensure high availability, disaster recovery, and scalability of database systems using AWS-native solutions. Performance Tuning and Optimization Diagnose and resolve performance bottlenecks, including slow queries, locks, and resource contention. Conduct regular health checks, indexing reviews, and … Conduct regular testing of disaster recovery plans. Monitoring and Troubleshooting Set up and manage monitoring tools like CloudWatch, Datadog, or Prometheus to track database performance and availability. Troubleshoot and resolve complex database issues in real time. Collaboration and Documentation Work closely with developers to optimise application queries and database More ❯

Embedded DevOps Engineer to join our dynamic team. This role involves leading the design, implementation, and maintenance of our cloud infrastructure, ensuring high availability, performance, and security. You will collaborate closely with development teams to optimize cloud resources and enhance system reliability, while also contributing to the development and … compliance of our systems, adhering to industry standards and regulations. Business Continuity: Develop and maintain business continuity plans to ensure system resilience. Troubleshooting and Performance Tuning: Utilize strong troubleshooting skills, log analysis, and performance tuning to maintain system health. Technical Documentation: Create technical documentation and train … communication skills to collaborate effectively with cross-functional teams and stakeholders. Proactive Problem-Solving: Proactive approach to identifying and mitigating potential system failures and performance bottlenecks. ️ Is This You? Proven Expertise: 8+ years of experience in software and DevOps engineering. Cloud Platform Experience: 3+ years of professional experience working More ❯

be responsible for designing, implementing, managing, and optimizing Azure SQL database environments. This role requires expertise in cloud-based database administration, high availability solutions, performance tuning, and security best practices. You will collaborate with development, infrastructure, and security teams to ensure efficient database operations that align with business … objectives. Main Duties and Responsibilities Design, implement, and maintain Azure SQL databases to support business applications. Monitor and optimize database performance, security, and availability. Configure and manage high availability and disaster recovery (HA/DR) solutions such as Always On Availability Groups. Perform database tuning, indexing, and query … . Expertise in database backup, recovery, and disaster recovery planning. Experience implementing security best practices, including RBAC, encryption, and auditing . Strong understanding of performance tuning techniques , including indexing strategies and query optimization. Familiarity with PowerShell scripting and Infrastructure as Code (IaC) tools such as Terraform or ARM More ❯

Senior Java Developer – High-Performance FX Trading We’re working on behalf of a prestigious financial services organization to source a highly skilled Senior Java Developer with a strong background in building high-performance, low-latency trading systems. This is an exciting opportunity to contribute to the evolution … while collaborating closely with cross-functional teams that include product leads, architects, and operations specialists. Key Responsibilities: Application Development: Design, develop, and maintain high-performance FX Matching applications using Java. Apply event-driven architecture principles to create scalable and responsive systems. Conduct OS-level and Java performance tuning … efforts and maintain automated test frameworks. Promote secure coding practices and contribute to compliance and risk mitigation strategies. Key Requirements: Proven experience building high-performance systems for FX or similar financial trading applications. Bachelor’s degree in Computer Science, Engineering, or a related technical field. Strong expertise in low More ❯

technologies. Scripting: SQL, PL/SQL, Shell, PowerShell. Tools: pgAdmin, SSMS, Oracle Enterprise Manager, AWS RDS, Azure SQL, etc. Backup solutions, monitoring tools, and performance tuning utilities. Minimum Qualifications: Degree or equivalent qualification; 2-3 years of Database Administration experience. Duties and Responsibilities: Database Management & Maintenance Install, configure … and upgrade database management systems (DBMS) such as Oracle, SQL Server, MySQL, PostgreSQL, etc. Perform routine maintenance including backups, updates, and patches. Monitor database performance and tune for efficiency (indexing, query optimization, etc.). Manage database storage and capacity planning. Security & Compliance Implement and manage database security policies including … recovery strategies. Perform regular data backups and test restoration procedures. Respond quickly to restore data in the event of a failure or breach. Monitoring & Performance Tuning Monitor database activity and usage. Analyze slow-running queries and make recommendations for optimization. Use tools to track performance metrics and More ❯

Location: London, UK About the Client: We are partnering with an exciting, disruptive technology company at the forefront of machine learning (ML) and high-performance GPU computing. This innovative firm is leveraging cutting-edge GPU technology to optimize machine learning algorithms and computational models, powering the next wave of … AI and data-driven applications. Their mission is to drive performance optimization in ML and AI workloads, transforming industries such as autonomous vehicles, healthcare, and immersive gaming experiences. This is a fantastic opportunity for someone passionate about low-level systems programming and ML optimization to be part of a … the future of technology. The Role: We are seeking a Low-Level C++ Engineer to join their team and work directly on optimizing GPU performance for machine learning (ML) workloads. As part of the ML optimization team, you will be responsible for developing and fine-tuning GPU-level More ❯

Location: London, UK About the Client: We are partnering with an exciting, disruptive technology company at the forefront of machine learning (ML) and high-performance GPU computing. This innovative firm is leveraging cutting-edge GPU technology to optimize machine learning algorithms and computational models, powering the next wave of … AI and data-driven applications. Their mission is to drive performance optimization in ML and AI workloads, transforming industries such as autonomous vehicles, healthcare, and immersive gaming experiences. This is a fantastic opportunity for someone passionate about low-level systems programming and ML optimization to be part of a … the future of technology. The Role: We are seeking a Low-Level C++ Engineer to join their team and work directly on optimizing GPU performance for machine learning (ML) workloads. As part of the ML optimization team, you will be responsible for developing and fine-tuning GPU-level More ❯

during transformation Collaborate with data architects, GCP engineers, and business stakeholders to ensure smooth transition Apply best practices in data modeling, workload management, and performance tuning Support transformation testing and data validation efforts Document architecture, ETL logic, and data flow processes Ensure compliance with data governance and security … policies during migration Participate in performance reviews and recommend improvements across the data landscape Mentor junior engineers and contribute to knowledge-sharing within the team ?? Key Skills & Experience Extensive hands-on experience with Teradata and other enterprise data warehouses Strong knowledge of Teradata architecture, star/snowflake schemas, and … TDWM Proven experience with Teradata-to-GCP data warehouse migration Deep knowledge of ETL processes, data warehousing concepts, and data modeling Experience with Teradata performance tuning, partitioning strategies, and workload management (TASM) Strong problem-solving skills and ability to work in a fast-paced, collaborative environment Excellent communication More ❯

committed to achieving net zero by 2040. Key Responsibilities Collaborate with the DBA team to optimize database queries and improve ETL job performance. Perform performance tuning of ETL processes to meet project requirements and deadlines. Troubleshoot and resolve issues related to ETL processes, data integration, and system performance. … Informatica PowerCenter (ETL tool) including designing and developing mappings, workflows, and sessions. Solid understanding of data modeling concepts and data warehousing. Practical experience on performance tuning techniques for ETL jobs. Excellent problem-solving skills and ability to work independently or in a team. Strong communication and documentation skills. More ❯

committed to achieving net zero by 2040. Key Responsibilities Collaborate with the DBA team to optimize database queries and improve ETL job performance. Perform performance tuning of ETL processes to meet project requirements and deadlines. Troubleshoot and resolve issues related to ETL processes, data integration, and system performance. … Informatica PowerCenter (ETL tool) including designing and developing mappings, workflows, and sessions. Solid understanding of data modeling concepts and data warehousing. Practical experience on performance tuning techniques for ETL jobs. Excellent problem-solving skills and ability to work independently or in a team. Strong communication and documentation skills. More ❯

to work first hand with multiple stakeholders across different tech stack like Cloud, AI etc. Key responsibilities: Design & develop in JAVA on GCP Platform. Performance tuning and optimization. Exploring new capabilities and components & doing PoC for assessment. Debugging & troubleshooting. Your Profile Essential skills/knowledge/experience: Experience … programming Java + Camunda. Sound knowledge on JAVA, GCP and Camunda. Hands on experience on working on GCP Platform. Strong experiencing on designing, developing & performance tuning of applications. Strong debugging and troubleshooting capabilities. Desirable skills/knowledge/experience: Knowledge on development & deployment on GCP platform. Knowledge on More ❯

a crucial role in ensuring the stability, efficiency, and security of the company's SAP environment. You will be responsible for installations, upgrades, patches, performance tuning, and troubleshooting, working closely with cross-functional teams to deliver seamless system operations. Key Responsibilities: ' • SAP System Administration - Install, configure, and maintain … SAP applications.' • Performance Tuning - Optimise SAP Hana databases and Unix/Linux environments for peak performance.' • Troubleshooting & Issue Resolution - Monitor system health, identify issues, and implement fixes.' • Security & Compliance - Implement best practices in SAP Security (role management and access control).' • System Documentation - Maintain up-to-date documentation More ❯

Experienced Professional Workplace Hybrid Your Responsibilities Responsible for managing and maintaining Lockton's database SQL estate, ensuring data integrity, security, and availability, while optimising performance and troubleshooting any issues that arise. Install, configure, and maintain SQL Server databases. Monitor system health and performance to ensure high levels of … performance, availability, and security. Perform database tuning and optimisation. Manage database backup and recovery processes. Experience of upgrading SQL versions. Implement and maintain database security (user roles, permissions, etc.). Troubleshoot and resolve database issues. Develop and maintain shell scripts for database management. Assist with database design and … Qualifications Requirements: Proven experience as a SQL Database Administrator. Strong knowledge of SQL Server (2014, 2016, 2017 and later versions). Experience with database performance tuning and optimisation. Familiarity with backup and recovery processes. Understanding of database security best practices. Experience with high-availability and disaster recovery options More ❯

Staff Software Engineer, GPU Performance, Core ML corporate_fare Google place London, UK Apply Minimum Qualifications: Bachelor's degree or equivalent practical experience. 8 years of experience in software development and with data structures/algorithms (e.g., C++ or Python). 5 years of experience with Machine Learning (ML … design and ML infrastructure (e.g., model deployment, model evaluation, data processing, debugging, fine tuning). Experience working with GPUs. Experience in a technical leadership role leading project teams and setting technical direction. Preferred Qualifications: Master's degree or PhD in Engineering, Computer Science, or a related technical field. Experience … Expertise in tailoring algorithms and ML models to exploit GPU strengths and minimize weaknesses. Knowledge of low-level GPU programming (CUDA, OpenCL, etc.) and performance tuning techniques. Understanding of modern GPU architectures, memory hierarchies, and performance bottlenecks. Ability to develop and utilize sophisticated performance models and More ❯

secure, and efficient server-side applications. The ideal candidate should have experience in microservices architecture, API development, and database management, ensuring high availability and performance of backend services. In this role, you will collaborate closely with frontend engineers, product managers, and other stakeholders to build robust backend solutions that … power our applications. A strong focus on Separation of Concerns (SoC), security best practices, and performance optimization is crucial for success in this position. Key Responsibilities: Manage, host, and serve AI/ML models (MLOps), by ensuring their scalability, reliability, and performance in production environments. Integrate models into … create API endpoints for model interaction (e.g., retrieving predictions). Develop and maintain scalable services, e.g. Microservices utilizing REST, gRPC, or GraphQL, ensuring optimal performance and seamless integration. Optimize database queries and schemas to improve performance, scalability, and reliability. Implement security features, including authentication and authorization using industry More ❯

Migration Service (DMS), Schema Conversion Tool (SCT), and Babelfish for Aurora. Implement Amazon RDS, Aurora, DynamoDB, and ElastiCache to replace legacy databases. Optimise database performance through sharding, partitioning, and caching strategies. Cloud-Native & Serverless Adoption Architect solutions leveraging AWS Lambda, API Gateway, Step Functions, and EventBridge. Support customers in … modernisation frameworks, methodologies, and best practices. Help shape packaged offerings, including AWS MAP-funded modernisation engagements. Mentor junior architects and engineers, fostering a high-performance technical culture. Required Skills & Experience Technical Expertise AWS Database Services - RDS (PostgreSQL/MySQL/SQL Server), Aurora, DynamoDB, ElastiCache. Database Migration - Experience with … Actions, AWS CodePipeline, database schema versioning (Flyway/Liquibase). AI-Powered development experience Security & Compliance - IAM, KMS, Secrets Manager, AWS Backup, GDPR considerations. Performance Tuning & Optimisation - Query tuning, indexing, caching, connection pooling. Consulting & Leadership Skills Proven experience in customer-facing solution architecture or technical consulting. Strong More ❯

database structure design and T-SQL. The ideal candidate will have expertise in MS SQL Server and a passion for developing and optimizing the performance of particularly complex datasets. Experience of using SQL Server Database Systems is a must and you must have a creative mindset, willing to develop … to their effectiveness across multiple media channels. Using your interest in database developments, builds, migrations and upgrades, you will be responsible for enhancing the performance of this dashboard and other YouGov Sport systems. Overall role objectives: Work alongside experienced colleagues to maintain and develop YouGov Sport databases, working towards … ll do (not all of it, just the important stuff): Design, develop, implement, and maintain database solutions using MS SQL Server, ensuring scalability, reliability, performance and security. Develop SQL DB objects as per the design and defined standards. Maintain/Write SQL database schemas and scripts, including views, stored More ❯

and fund administrators. Collaboration: work closely with front-end developers, product managers, and other stakeholders to deliver high-quality features that meet customer needs. Performance Tuning: identify and resolve performance bottlenecks in the back-end services and ensure efficient data flow and processing. Security: implement best practices More ❯

/8. Experience with app authentication using Azure AD/B2C. Scripting and Automation: Proficient in scripting and automation with Python, Bash, or PowerShell. Performance & Scalability: Experience with performance testing, auto-scaling strategies, and database performance tuning. Security & Best Practices: Knowledge of security best practices in cloud … environments. Additional Experience: Experience with Python, SQL, and NoSQL database performance tuning, as well as progressive deployment techniques, would be highly desirable. The successful Azure DevOps Engineer/SRE will earn up to £80,000 and in addition there are exceptional benefits which come as part of the More ❯

/8. Experience with app authentication using Azure AD/B2C. Scripting and Automation: Proficient in scripting and automation with Python, Bash, or PowerShell. Performance & Scalability: Experience with performance testing, auto-scaling strategies, and database performance tuning. Security & Best Practices: Knowledge of security best practices in cloud … environments. Additional Experience: Experience with Python, SQL, and NoSQL database performance tuning, as well as progressive deployment techniques, would be highly desirable. The successful Azure DevOps Engineer/SRE will earn up to £80,000 and in addition there are exceptional benefits which come as part of the More ❯

class Compute and AIML platforms that accelerate application development, scale up computational experiments, and integrate all computation with project metadata, logs, experiment configuration and performance tracking over abstractions that encompass Cloud and High-Performance Computing. This metadata-forward, CI/CD-driven platform represents and enables the entire … interactive development and explorations (notebooks), large-scale batch processing, observability and production application deployments. The optimization team's focus is on maximizing scale and performance of all aspects of the platforms. A Director of AIML & Scientific Computing Optimization is a deeply technical leader. They consistently deliver major compute and … with cross-organizational impact and value. They are recognized as expert in software engineering, scientific computing, and/or AIML with deep understanding of performance and optimization, within the Onyx team, across R&D Digital & Tech, and even externally. They can work closely with and have strong technical knowledge More ❯

Database Administration team. In this role, you will be responsible for managing a team of DBAs across multiple locations, ensuring the security, scalability, and performance of our database infrastructure. You will collaborate closely with cross-functional teams to deliver high-availability database solutions that are critical to our business … operations. As a leader, you will drive the strategic direction of the DBA team while overseeing its day-to-day operations, ensuring high performance and operational excellence. Responsibilities: Lead and manage a geographically distributed Database Administration team, providing guidance, mentorship, and performance management. Collaborate with development, security, and … security, scalability, and high availability of PostgreSQL, MongoDB, Redis, and MySQL databases across the company. Drive database architecture decisions, implementing best practices for database performance, backup, disaster recovery, and fault tolerance. Manage and resolve complex database-related incidents, providing guidance to the DBA team in minimising downtime and improving More ❯

S3, Redshift, Athena, and Lake Formation. Implement data governance, security, and compliance best practices, including IAM roles, encryption, and access controls. Monitor and optimize performance of data workflows using CloudWatch, AWS Step Functions, and performance tuning techniques. Automate data processes using Python, PySpark, SQL, or AWS SDKs. … and business intelligence initiatives. Maintain and enhance CI/CD pipelines for data infrastructure using Terraform, CloudFormation, or CDK. Troubleshoot and resolve data integration, performance, and reliability issues in a cloud environment. Required Skills & Qualifications: 5+ years of experience in data engineering with a strong focus on AWS cloud … Apache Spark, Hadoop, or Presto. Hands-on experience with machine learning pipelines and AI/ML data engineering on AWS. Benefits: Competitive salary and performance-based bonus structure. Join a rapidly expanding start-up where personal growth is a part of our DNA. Benefit from a flexible work environment More ❯