1 to 25 of 682 Performance Tuning Jobs in London

optimization, and implementation of complex database solutions that support our enterprise applications and analytics systems. You will play a critical role in defining data strategy, ensuring scalability, security, and performance of SQL-based systems, and collaborating with cross-functional teams to support business goals. Key Responsibilities: Design, architect, and implement high-performance SQL Server/Oracle/PostgreSQL … solutions. Define data architecture standards and best practices for the organization. Develop complex queries, stored procedures, triggers, and performance tuning strategies. Lead the migration of legacy systems to modern data platforms (e.g., cloud-based SQL solutions). Collaborate with DevOps, application developers, BI engineers, and data scientists. Ensure high availability, disaster recovery, and data integrity across platforms. Perform … field. 10+ years of experience in SQL development, data architecture, or database administration. Expert knowledge of relational database systems like Microsoft SQL Server, Oracle, or PostgreSQL. Strong experience with performance tuning, indexing, and query optimization. Experience designing large-scale, distributed data systems in hybrid or cloud environments (e.g., Azure SQL, AWS RDS). Strong knowledge of ETL frameworks More ❯

collaboration, and progress, we’d love to hear from you! Why We Are Hiring: As our platform rapidly scales and our customer base grows, we’re investing in the performance, reliability, and scalability of our data infrastructure. We’re looking for a Senior SQL DBA who’s passionate about performance tuning, data architecture, and cloud-based systems … optimise the core systems powering our SaaS product. We’re looking for someone who understands database internals and query optimisation, as well as sees the bigger picture: how data performance fuels customer satisfaction, product analytics, and business growth. If you enjoy getting into the weeds of execution plans one day and helping shape cloud data strategy the next, this … strategies that meet defined RPO/RTO objectives in a 24/7 production environment. Proactively tune and optimise database queries, indexes, and stored procedures to ensure consistently high performance for large-scale transactional workloads. Implement and enforce role-based access control (RBAC) and multi-tenant data isolation policies to comply with data governance and compliance requirements. Spearhead database More ❯

knows a thing or two about MS SQL Server Technology Stack and T-SQL . Ideally, you’ll have been involved in database schema design and some exposure to performance tuning; if you've Azure Fundamentals and/or Azure Data Fundamentals certification, all the better! Joining a busy team within the Data Operations business pillar and inside … some experience managing coding standards, security and auditing procedures. You'll have experience managing monitoring/proactive alerting processes. You'll need intermediate experience with root cause analysis, database performance monitoring and capacity planning. You'll ensure all database systems meet business and performance requirements. You'll have the ability to work towards strict deadlines within a busy … high transactional environment. You'll assist with SQL code reviews and implementation of performance improvements. You'll possess excellent communication and interpersonal skills. You'll possess excellent time management and coordinating skills. You'll possess excellent analytical and problem-solving skills. You'll comply with the requirements, and act in accordance with, the Group Code of Conduct and Fitness More ❯

knows a thing or two about MS SQL Server Technology Stack and T-SQL . Ideally, you’ll have been involved in database schema design and some exposure to performance tuning, if you've Azure Fundamentals and/or Azure Data Fundamentals certification, all the better! Joining a busy team within the Data Operations business pillar and inside … some experience managing coding standards, security and auditing procedures. You'll have experience managing monitoring/proactive alerting processes. You'll need intermediate experience with root cause analysis, database performance monitoring and capacity planning. You'll ensure all database systems meet business and performance requirements. You'll have the ability to work towards strict deadlines within a busy … high transactional environment. You'll assist with SQL code reviews and implementation of performance improvements. You'll possess excellent communication and interpersonal skills. You'll possess excellent time management and coordinating skills. You'll possess excellent analytical and problem-solving skills. You'll comply with the requirements, and act in accordance with, the Group Code of Conduct and Fitness More ❯

with AWS, Azure, Apache Spark, data warehousing, database modelling and SQL. You’ll play a critical role in designing, building, and maintaining our data infrastructure to support scalable, high-performance data pipelines and analytics platforms. Responsibilities will include: Design, build, and maintain robust, scalable, and secure data pipelines using AWS services and Apache Spark. Develop and optimize data models … of technical excellence and continuous improvement. Write clean, maintainable, and efficient code while following best practices in software development. Debug and resolve issues and implement solutions to improve the performance and functionality of existing applications. Stay up to date with the latest in cloud and big data technologies, evaluating their potential for use in the platform. Collaborate with DevOps … services including AWS DMS, S3, Lambda, Glue, EMR, Redshift, and IAM. Proficient in Apache Spark (batch and/or streaming) and big data processing. Solid experience with SQL and performance tuning in data warehouse environments. Hands-on experience with Amazon Redshift or equivalent, including table design, workload management, and implementing Redshift Spectrum. Experience building ETL/ELT pipelines More ❯

expertise in CockroachDB to join our team. As a Database Administrator, you will be responsible for designing, implementing, and maintaining our distributed database infrastructure, ensuring high availability, scalability, and performance of our mission-critical applications. You will play a crucial role in optimizing database operations and supporting our growing digital platform. As a Database Administrator, you will: Establish and … database best practices, helping to build a culture of database engineering excellence Participate in design, implementation, and maintenance of our CockroachDB infrastructure across multiple regions and environments. Monitor database performance, tune queries, and optimize database configurations to maintain optimal system performance. Implement and maintain security measures for database access, including user authentication, authorization, and audit logging. Collaborate with development … least 2 years of hands-on experience with CockroachDB in production environments Strong understanding of distributed database concepts, including consensus algorithms, distributed transactions, and CAP theorem Experience with database performance tuning, query optimization, and troubleshooting in distributed environments Proficiency in SQL and experience with database schema design and optimization Proficiency in writing tools in a higher-level language More ❯

existing codebase into machine learning territory, drive innovation across multiple deployment sites, and collaborate closely with our optimization and engineering teams. You'll develop robust Python code, analyze system performance, and contribute to deployment pipelines that power critical operations. If you're an independent, hands-on engineer who thrives on writing production-grade Python code, analyzing logs, debugging complex … and engineers to support advanced analytics and machine learning workflows. Support the migration of our codebase toward machine learning capabilities by building scalable, maintainable solutions. Analyze system logs and performance to debug issues and optimize operations using forensic analysis tools. Qualifications: Bachelor's or Master's degree in Computer Science, Mathematics, Data Analytics, or a related field. 3+ years … of experience developing and deploying production-grade Python software. 3+ years of experience with Python and high-performance data libraries such as Polars and Pandas. Proficiency with JavaScript, SQL, and KQL. Experience with Extract, Transform, Load (ETL), Data Streaming, and Reconciliation. Experience building and maintaining deployment pipelines, including DevOps tools like Ansible, and containerization with Docker. Proficiency with cloud More ❯

Database Administrator (DBA) to manage, optimize, and enhance database performance. This role requires expertise in PostgreSQL, Oracle, NoSQL databases , and ETL processes , along with strong skills in data modeling, performance tuning, and cloud technologies . Location - Gurugram Experience Required 5-7 years of experience in database administration and performance engineering. Key Responsibilities Database Design & Optimization Design and … implement scalable database models for high-performance applications. Optimize query execution, reduce deadlocks, and enhance database efficiency. Automate backup, purging, and archival processes for improved system performance. Scale production databases to handle high-traffic environments. Database Administration & Security Administer and optimize PostgreSQL, Oracle, and NoSQL databases. Implement data security policies, encryption, and access controls. Perform reverse engineering of legacy … ETL testing and validation to ensure data integrity. Work with Power BI for reporting and analytics, creating actionable insights. Ensure accurate SQL-based database validation between DB and Endur. Performance Engineering & Solution Designing Conduct database performance tuning, query optimization, and troubleshooting. Design high-availability database infrastructure solutions. Collaborate with cross-functional teams to optimize database operations. Project 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 ❯

Develop and maintain integrations with external systems using APIs, OData, and Azure services. Troubleshoot, debug, and resolve technical issues in D365 applications. Participate in system upgrades, data migrations, and performance tuning. Collaborate with functional consultants, business analysts, and QA teams. Follow SDLC and agile development methodologies. Ensure solutions adhere to Microsoft best practices, compliance, and security standards. Required Skills More ❯

basis. The successful candidate will 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 optimization. Implement and maintain database security, ensuring compliance with industry standards and regulations. Manage database … Log Analytics, and Security Center . 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 templates. Experience supporting CI/ More ❯

experience in the banking or financial services domain is highly advantageous. Must have experience with API gateways and mobile app development/modernisation Key Responsibilities: Design and develop high-performance, secure, and scalable backend systems using Java, Spring Boot, and modern architectural patterns. Lead the development of RESTful APIs and microservices, ensuring alignment with mobile platforms and business objectives. … and JWT. Collaborate with mobile application teams to optimize backend services for mobile-specific needs like caching and offline access. Take ownership of end-to-end technical delivery including performance tuning, code quality, security best practices, and CI/CD integration. Conduct code and design reviews, establish technical standards, and mentor engineering team members. Troubleshoot complex issues in … discipline. Significant experience in backend development with solid experience in technical leadership or solution architecture role. Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. Expert-level proficiency in Java, Spring Boot, and associated Spring modules (MVC, Data, Security). Strong track record in architecting and deploying microservices in enterprise environments. Experience with More ❯

experience in the banking or financial services domain is highly advantageous. Must have experience with API gateways and mobile app development/modernisation Key Responsibilities: Design and develop high-performance, secure, and scalable backend systems using Java, Spring Boot, and modern architectural patterns. Lead the development of RESTful APIs and microservices, ensuring alignment with mobile platforms and business objectives. … and JWT. Collaborate with mobile application teams to optimize backend services for mobile-specific needs like caching and offline access. Take ownership of end-to-end technical delivery including performance tuning, code quality, security best practices, and CI/CD integration. Conduct code and design reviews, establish technical standards, and mentor engineering team members. Troubleshoot complex issues in … discipline. Significant experience in backend development with solid experience in technical leadership or solution architecture role. Exposure to mobile application development lifecycle, backend-for-frontend (BFF) patterns, and mobile performance optimization. Expert-level proficiency in Java, Spring Boot, and associated Spring modules (MVC, Data, Security). Strong track record in architecting and deploying microservices in enterprise environments. Experience with More ❯

Software Engineer to join our team in York!! Your Impact: Strategic Technical Leadership: Lead the long-term technical direction of the engineering team, driving the evolution of scalable, high-performance systems. Collaborate with senior leadership and cross-functional teams to define and execute the company’s technical vision, aligning engineering efforts with broader business goals. Architecting Cloud-Native Systems … latest trends in software engineering, cloud computing, and data processing. Champion the adoption of best practices and innovative solutions to keep the company ahead of the technological curve. High-Performance Systems Design: Lead the design and optimization of systems for performance, scalability, and reliability. Focus on streamlining workflows and ensuring high-throughput, low-latency operations for complex distributed … infrastructure management, and deployment processes to ensure continuous delivery and reliability. Champion DevOps best practices and infrastructure-as-code using tools like Terraform, Docker, and Kubernetes. System Monitoring and Performance Tuning: Establish and maintain monitoring, logging, and alerting solutions for system health, performance, and security. Continuously analyze and tune system performance to optimize resource utilization and 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 ❯

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 ❯

Collaborate with data architects and security teams to ensure compliance with security policies and data governance standards. Manage and monitor large-scale data flows in real-time, ensuring system performance, reliability, and data integrity. Develop robust data models to support analytics and reporting within secure environments. Perform troubleshooting, debugging, and performance tuning of data pipelines and the … anonymization, and access control. Familiarity with data governance, data quality management, and compliance standards in secure environments. Experience in managing large-scale, real-time data pipelines and ensuring their performance and reliability. Strong scripting and programming skills in Python, Bash, or other relevant languages. Working knowledge of cloud platforms (AWS, Azure, GCP) with a focus on data security and More ❯

data models using Power BI and Azure Analysis Services, applying best practices in DAX and Power Query (M). Drive governance, security (e.g., Row-Level Security, workspace management), and performance tuning best practices for enterprise BI environments. Integrate Power BI with Azure Data Services (e.g., Azure Synapse, Data Lake, Databricks) and M365 platforms, with familiarity in Power Platform More ❯

developing SQL relational databases and data warehousing technologies. Knowledge of Kimball, or similar methodology, a nice to have. Advanced DBA level understanding of Microsoft SQL Server concepts such as performance tuning with row or column store indexing, graph databases, or geocoding/geospatial querying. Good knowledge of Azure cloud services and approaches to optimize spend against requirements. Knowledge More ❯

hosted open source services exclusively. We strive towards a strong code-first, data as a product mindset at all times, where testing and reliability with a keen eye on performance is a non-negotiable. JOB SUMMARY A Senior Data Engineer, has the primary role of designing, building, and maintaining scalable data pipelines and infrastructure to support data-intensive applications … services for data storage, processing, and analytics. Data Quality and Governance: Implement and oversee data governance, quality, and security measures. Monitoring, Optimization and Troubleshooting: Monitor data pipelines and infrastructure performance, identify bottlenecks and optimize for scalability, reliability, and cost-efficiency. Troubleshoot and fix data-related issues. DevOps: Build and maintain basic CI/CD pipelines, commit code to version … and DevOps. Mentoring: Mentor and guide junior and mid-level data engineers. Technology Selection: Evaluate and recommend technologies, frameworks, and tools that best suit project requirements and architecture goals. Performance Optimization: Optimize software performance, scalability, and efficiency through architectural design decisions and performance tuning. QUALIFICATIONS Proven experience as a Senior Data Engineer, or in a similar role More ❯

engineering and data science teams to deploy and monitor machine learning models and analytical services. Implement and enforce security best practices across cloud and network environments. Troubleshoot deployment and performance issues across multiple environments. Set up and maintain observability tools for logging, monitoring, and alerting (e.g., Prometheus, Grafana, Loki). Contribute to internal tooling to streamline development, testing, and … with containerization using Docker. Familiarity with scripting languages such as Bash and Python. Solid understanding of cloud security and networking best practices. Strong experience with Linux system administration and performance tuning. Experience working collaboratively with engineering, data, and ML teams to deliver scalable solutions. Willingness and ability to quickly learn and adopt new tools and technologies. Preferred Qualifications: AWS More ❯

in identifying issues with code/deliverables. Champion and drive through alerting and monitoring requirements for the platform. Identify and execute pro-active actions to ensure continued stability and performance of the platform. Our ideal candidate: Strong experience in Designing and delivering Azure based data platform solutions, technologies including: Azure Data Bricks, Azure Synapse Analytics. Azure MS SQL Managed … App Service, Web App. Good knowledge in real-time streaming applications preferably with experience in Kafka Real-time messaging or Azure Stream Analytics/Event Hub. Spark processing and performance tuning. File formats partitioning for e.g. Parquet, JSON, XML, CSV. Azure DevOps, GitHub actions. Hands-on experience in at least one of Python with knowledge of the others. Experience More ❯

Connex, ensuring seamless data exchange and interoperability. Oracle and MS SQL Server Database Management: Strong understanding of Oracle and MS SQL Server databases, including database design, administration, optimisation, and performance tuning. .NET C# and/or Java Development: Proficiency in .NET C# and Java development for building custom applications, modules, and integrations within the Endur ecosystem. Endur Gateways and … or Crude and Refined Products. Deep understanding of various functional areas and relevant modules of Endur. Experience in conducting comprehensive testing and quality assurance activities to validate the functionality, performance, and reliability of Endur solutions. Worked as part of a cross-cultural/geographical team including flexibility to support multiple time zones when necessary. Worked as part of a More ❯

understand front-office requirements and enhance end-to-end trade flows. Liaise with other IT teams (Market Data, Infrastructure, Risk, etc.) to ensure seamless data exchange and system interoperability. Performance & Monitoring: Implement robust monitoring, logging, and alerting solutions to ensure timely detection and resolution of FIX and OMS-related issues. Conduct performance tuning and optimization of integration … understand front-office requirements and enhance end-to-end trade flows. Liaise with other IT teams (Market Data, Infrastructure, Risk, etc.) to ensure seamless data exchange and system interoperability. Performance & Monitoring: Implement robust monitoring, logging, and alerting solutions to ensure timely detection and resolution of FIX and OMS-related issues. Conduct performance tuning and optimization of integration … Computer Science, Engineering, Mathematics, or a related field Experience Extensive Programming Experience: Minimum of 6 years of professional experience, with the majority in C# or Java, particularly in high-performance and real-time environments. FIX Protocol & OMS Expertise: Proven background in implementing and supporting FIX-based connectivity and OMS integrations, including message routing and exception handling. React & TypeScript: Experience More ❯