26 to 50 of 105 Performance Tuning Jobs in London

connectivity, firewalls, and SDN configurations, troubleshooting issues and supporting resilience improvements. Provide 2nd/3rd line support for Windows and Linux systems, managing updates, performance tuning, and configuration consistency. Maintain accurate system and configuration documentation, supporting compliance and governance requirements. Collaborate across teams to improve operational efficiency, automate ...

knowledge of SQL for querying and managing relational databases like MySQL , PostgreSQL , or Oracle . Skilled in writing complex joins , subqueries, stored procedures, and performance tuning. Experience with integrating SQL queries within Java applications using JDBC, JPA, or Spring Data JPA . Extensive experience in unit testing Java applications ...

knowledge of SQL for querying and managing relational databases like MySQL , PostgreSQL , or Oracle . Skilled in writing complex joins , subqueries, stored procedures, and performance tuning. Experience with integrating SQL queries within Java applications using JDBC, JPA, or Spring Data JPA . Extensive experience in unit testing Java applications ...

data maps, interface contracts, and non-functional requirements (NFRs). Provide technical leadership during build: review designs, perform architecture spikes, and support troubleshooting and performance tuning. Define CI/CD pipelines for MarTech configurations and integration code; automate testing and deployments where possible. Mentor engineering teams, drive architectural governance ...

data from multiple sources into Snowflake Develop and optimize data models in Snowflake for analytics and reporting use cases Ensure data quality, reliability, and performance across pipelines and warehouse workloads Collaborate with analytics engineers, data analysts, and stakeholders to understand data requirements Implement best practices for Snowflake (clustering, scaling … cost optimization, security) Monitor and troubleshoot data pipelines, resolving failures and performance issues Manage and evolve data transformations using SQL and version control Document data pipelines, models, and business logic for long-term maintainability Support CI/CD processes and promote automation across the data platform Required Qualifications 3+ ...

data from multiple sources into Snowflake Develop and optimize data models in Snowflake for analytics and reporting use cases Ensure data quality, reliability, and performance across pipelines and warehouse workloads Collaborate with analytics engineers, data analysts, and stakeholders to understand data requirements Implement best practices for Snowflake (clustering, scaling … cost optimization, security) Monitor and troubleshoot data pipelines, resolving failures and performance issues Manage and evolve data transformations using SQL and version control Document data pipelines, models, and business logic for long-term maintainability Support CI/CD processes and promote automation across the data platform Required Qualifications 3+ ...

Investment Bank is seeking a talented Java Developer to join its Front Office Risk Technology team. You will help design and enhance a high-performance used across trading, structuring, and quantitative research. This is a hands-on engineering role where you will work on scalable services, real-time risk … risk aggregation. Implement new features to support regulatory changes, new trading strategies, and expanded product coverage. Collaborate on architectural improvements aimed at enhancing system performance, resiliency, and throughput. Ensure code quality through automated testing, code reviews, and best engineering practices. Support production systems and participate in rapid troubleshooting ...

Onsite Contract until End of 2026 Start Date - 2nd Feb 2026 Required Skills 7+ years’ experience with Sybase and/or SQL Server, including performance tuning and stored procedure development. 2+ years’ experience in cloud environments with knowledge of IaaS, PaaS, and DBaaS. Familiarity with RDS/PostgreSQL. ...

monitor performance. Collaborate with Product, Engineering, and Business teams to translate business problems into AI solutions. Conduct model evaluation, A/B testing, and performance tuning. Document models, experiments, and technical processes. Required Skills & Qualifications:- Classic Machine learning (Regression, predictive Analysis, Classification, Clustering) Machine learning Model Optimisation Strong proficiency ...

prem data platforms, from high-level architecture to detailed technical design. Hands-on experience configuring multi-node Hadoop clusters, including resource management, security, and performance tuning. Strong Big Data engineering background using Apache Airflow, Spark, dbt, Kafka, and Hadoop ecosystem tools. Knowledge of RDBMS systems (PostgreSQL, SQL Server ...

support and optimise complex SQL Server environments. They specialise in database, server, cloud, and application services with a strong emphasis on proactive performance management, reliability and continuous improvement. This is an opportunity to join a genuinely people-focused, high-performing company where you are trusted to deliver impactful work. … where your technical expertise is recognised and your career can develop. In this role, you will be responsible for: Diagnosing and resolving SQL Server performance issues across queries, indexes and execution plans Tuning stored procedures, user-defined functions and ETL processes to improve scalability and speed Working closely ...

Java Developer to join its engineering team. The successful candidate will play a key role in the design, development, and enhancement of a high-performance Order Management System (OMS) used within a complex trading environment. Applicants must have hands-on experience designing and building OMS platforms. This … components supporting trade lifecycle management Work closely with product owners, quants, and business stakeholders to translate trading requirements into technical solutions Ensure system performance, scalability, and resilience in a high-throughput environment Participate in code reviews, testing, and deployment activities Support production systems and assist with troubleshooting and performance ...

designing and delivering large-scale data migrations Expert-level Python and SQL Infrastructure-as-Code using Terraform Data modelling and warehouse design (star schema, performance tuning) Strong experience with dbt and modern ELT patterns Excellent stakeholder communication and technical leadership skills ...

testable and maintainable code following best practices Participate in code reviews and contribute to improving engineering standards Support production systems, including bug fixing and performance tuning Work within Agile/Scrum delivery teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building ...

Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering ...

Sills and Experience: * Proficient in SQL, C#, Python, Java, HTML/CSS, and related development frameworks. * Understanding of API integration, data modelling, and application performance tuning. * Strong project management skills are essential for implementing new systems or major upgrades. * Experience managing software lifecycle tools (e.g., Jira, Azure DevOps, ManageEngine ...

Artificial Intelligence (AI) and data architecture within the investment banking domain. The ideal candidate will have deep expertise in designing and implementing scalable, high-performance data platforms using modern technologies such as MongoDB, Redis, Elasticsearch, and other tools that enable fast data storage, querying, and exposure. This role requires … like MongoDB, Redis, Elasticsearch, and other NoSQL/relational systems. Collaborate with business stakeholders, data scientists, and engineering teams to deliver solutions that meet performance, scalability, and compliance requirements. Ensure data provenance, integrity, and security across all layers of the architecture. Drive innovation in AI integration, including model deployment ...

trading activity. The successful candidate will work across the full software development lifecycle, contributing to the design, build, deployment, and optimisation of highly scalable, performance-critical applications. Key Responsibilities Build, test, and enhance high-performance trading systems using C++ and Python Translate quantitative models and trading logic into … front-office trading teams Improve market data ingestion, exchange connectivity, and real-time data flows Contribute to distributed systems, low-latency communication, and performance tuning initiatives Take part in design discussions, code reviews, profiling, and CI/CD improvements Gain hands-on exposure to algorithmic trading infrastructure, market ...

seamless collaboration across diverse stakeholders. This role combines technical leadership with hands-on data engineering, focusing on designing and optimizing data pipelines, improving performance, and contributing to data modeling and architecture decisions. The Data Engineer will work with the Data Solutions Architect and functional SMEs to deliver scalable, secure … project leadership. Major Responsibilities: Develop and maintain complex ETL/ELT pipelines to ingest and transform data from multiple sources into the UDP environment. Performance tuning and optimization of data workflows within Azure Databricks. Implement advanced data quality checks and validation routines to ensure integrity and consistency ...

services such as EC2, S3, and VPC. Troubleshoot and resolve complex infrastructure issues independently. Automate cloud operations using Terraform, CloudFormation, Python, and Bash. Monitor performance and costs, implementing optimizations as needed. Collaborate with development teams to support application deployment and operations. Assess new cloud technologies to improve infrastructure reliability … management tools (Ansible, Terraform). Experience with container technologies such as Docker, ECS, and Kubernetes. Knowledge of Windows and Linux system administration. Familiarity with performance tuning and cost management in the cloud. Agile development experience and strong communication skills. This position offers the chance to play ...

Artificial Intelligence (AI) and data architecture in an investment banking environment. The ideal candidate will have deep expertise in designing and implementing scalable, high-performance data platforms using modern tech including MongoDB, Redis, Elasticsearch and others. This role requires a strategic thinker with hands-on technical skills … organisations with a strong focus on architecture and enterprise solutions 5+ years as a Technical Architect with hands-on experience in: MongoDB - schema design & performance tuning Redis - caching & high-speed data access Elasticsearch - search & indexing strategies Other modern data technologies for fast storage and retrieval Strong expertise ...

solutions using Fabric components: o Data Factory (pipelines, orchestration) o Data Engineering (Lakehouse, notebooks, Apache Spark) o Data Warehouse (SQL endpoints, schemas, MPP performance tuning) o Real-Time Analytics (KQL databases, event ingestion) o Manage and enhance OneLake architecture, delta lake tables, security policies, and data governance within ...

solutions using Fabric components: o Data Factory (pipelines, orchestration) o Data Engineering (Lakehouse, notebooks, Apache Spark) o Data Warehouse (SQL endpoints, schemas, MPP performance tuning) o Real-Time Analytics (KQL databases, event ingestion) o Manage and enhance OneLake architecture, delta lake tables, security policies, and data governance within ...

processes, validations, and reports Develop and optimise solutions, models, calculations, and transformation logic Perform advanced data manipulation, validation, and reconciliation across Tagetik modules Troubleshoot performance, data integrity, and calculation issues Data, SQL & Integrations Use SQL extensively for data extraction, transformation, validation, and root-cause analysis Manage data interfaces between … Tagetik and upstream/downstream systems, including ETL, Datasource configurations, and API/SFTP integrations Ensure robustness, auditability, and performance of data flows and analytical outputs Stakeholder & Team Enablement Translate finance requirements into practical, technically sound system solutions Act as a Tagetik subject matter expert, supporting and upskilling users ...

writing, for specific database/specific technology requests, relating to cases and/or applications in scope. Perform application and process improvement; documentation; performance tuning; and technical strategy investigation upon request. Problem Management: Track, record, and process recurring tickets. Report automation opportunities for manual support tasks to client … continuous improvement initiatives as directed by the client. Basic functional support, application administration/server configuration and user access provisioning/portal setup. Performance and Application Monitoring Monitor performance and availability of the apps listed in Appendix 1 by using the clients provided toolset. Provide proactive exception monitoring ...