1 to 25 of 30 Performance Tuning Jobs in the City of London

Hybrid - 1-2 days per week on site The SQL DBA Engineer is responsible for designing, managing, and optimizing SQL database environments to ensure performance, availability, scalability, and security across business-critical systems. The role combines database architecture, administration, performance tuning, governance, backup and recovery planning … infrastructure teams. Key Responsibilities Design and maintain SQL database architecture aligned to business and application requirements Administer, monitor, and optimize SQL database environments for performance, reliability, and scalability Lead database installation, configuration, patching, upgrades, and migration activities Define and implement backup, recovery, disaster recovery, and high-availability strategies Troubleshoot ...

days per week on site Job Summary The SQL DBA Engineer is responsible for designing, managing, and optimizing SQL database environments to ensure performance, availability, scalability, and security across business-critical systems. The role combines database architecture, administration, performance tuning, governance, backup and recovery planning, and support … infrastructure teams. Key Responsibilities Design and maintain SQL database architecture aligned to business and application requirements Administer, monitor, and optimize SQL database environments for performance, reliability, and scalability Lead database installation, configuration, patching, upgrades, and migration activities Define and implement backup, recovery, disaster recovery, and high-availability strategies Troubleshoot ...

date technical expertise in the ever-changing and dynamic software world, Synergy Solutions International is now growing their team. Job Description Performance Test Lead Key Skills & Experience Minimum of 5+ years of experience in Performance Engineering and Benchmarking Large Scale systems and applications with skill in modeling … system under load and tuning the end of the technology stack Experience in working with different protocols using performance test tools like JMeter, Loadrunner, and SilkPerformer. Knowledge of API/web services testing tools, such as Postman, SoapUl. Good working experience in monitoring tools (Logic Monitor/ ...

hire an experienced Oracle Database Engineer for their database and platform engineering team. This is a hands-on position covering Oracle administration, automation and performance engineering across large-scale Exadata and cloud environments, including Autonomous Exadata Cloud@Customer. The Oracle Database Engineer role suits an Oracle professional who wants … move beyond routine administration into platform engineering: building automation that removes manual overhead, tuning at scale, and owning multi-tenant database architecture across mission-critical systems. About the role - Oracle Database Engineer (Oracle DBA): Build automation tooling and platform solutions using Ansible and scripting to reduce manual work across ...

passionate about building and operating highly scalable database platforms? Have you administered and optimised mission-critical PostgreSQL environments in cloud-first organisations, ensuring performance, availability and resilience at scale? Can you demonstrate broad technical knowledge across Platform Engineering, DevOps and Infrastructure, alongside experience with automation and scripting using Python … technology landscape. This is an opportunity to become a technical authority for database infrastructure, helping shape the future of the database platform whilst improving performance, resilience, scalability and operational efficiency. A selection of your key responsibilities will include administering and optimising large-scale PostgreSQL environments, managing connection pooling ...

supporting the infrastructure and services that underpin our market data capabilities. This is a hands-on engineering role with a strong focus on availability, performance, automation and continuous improvement. You will have the opportunity to solve complex technical challenges, enhance the scalability and resilience of our market data estate … technical planning for platform upgrades, lifecycle management, maintenance and production deployments. Develop automation for data ingestion, processing, monitoring and operational workflows. Support capacity planning, performance tuning and infrastructure improvements. Partner with technology teams, business stakeholders, exchanges and vendors to deliver effective market data solutions. Support compliance with relevant ...

changing and dynamic software world, Synergy Solutions International is now growing their team. Database Administrator Job Summary The successful candidate will be responsible for performance tuning of database systems, developing processes for optimizing database security, diagnosing and troubleshooting database errors, and recommending emerging database technologies. Performance tuning … Detailed understanding of Oracle Database operational running and replication Strong command of SQL and SQL toolsets Knowledge of database security, backup and recovery, and performance monitoring standards Unix Shell scripting Understanding of relational data modelling Strong mathematical and statistical knowledge Good written and verbal communications Experience with Unix environments ...

endpoints using NodeJS and Express, including detailed API documentation. Database Management: Design, optimize, and maintain complex SQL data models, ensuring efficient data structures, query performance, and reliability. Full‐Stack Development: Develop responsive and performant front‐end applications using ReactJS, focusing on UX/UI best practices. Integration & Automation: Architect … development teams and managing large‐scale projects. Database Expertise: In‐depth experience with PostgreSQL/SQL, including design of complex schemas, writing queries and performance optimisation. Security & Performance: Deep understanding of application security best practices, performance tuning, and scalable architecture. Problem‐Solving: Ability to troubleshoot complex ...

side electronic trading business. Additional headcount has been approved for a Senior Low Latency Network & Systems Engineer to help develop and optimise its high-performance trading infrastructure. This is an opportunity to work on technically demanding infrastructure where network performance, system efficiency and execution speed are critical … trading performance. You will take ownership of engineering and optimising ultra-low-latency infrastructure spanning Linux servers, high-performance networks, physical colocation environments, and AWS cloud infrastructure. The role offers significant technical ownership, with the opportunity to influence infrastructure architecture, introduce new technologies and deliver measurable improvements in trading ...

Evaluate AWS-native services and recommend the most effective resilience and recovery solutions. Define and test recovery objectives, failover procedures, and operational readiness. Assess performance, scalability, availability, maintainability, and operational complexity of different SQL Server deployment patterns. Produce architectural designs, technical documentation, implementation plans, and operational runbooks. Collaborate closely …/DR solutions. Extensive experience with: Always On Availability Groups Failover Cluster Instances (FCI) Log Shipping Replication Technologies Deep understanding of SQL Server performance tuning and optimisation, including: Indexing strategies Storage optimisation I/O performance Concurrency management Wait statistics analysis Strong knowledge of networking principles supporting ...

data reconciliation, establish rollback plans, and deliver production runbooks and team support handovers. Required Experience & Skills 8+ years of Oracle DB development and SQL performance tuning. 5+ years in OAS/OBIEE and BI Publisher development. 5+ years in Python development for data extraction, transformation, and reporting automation. 3+ ...

data reconciliation, establish rollback plans, and deliver production runbooks and team support handovers. Required Experience & Skills 8+ years of Oracle DB development and SQL performance tuning. 5+ years in OAS/OBIEE and BI Publisher development. 5+ years in Python development for data extraction, transformation, and reporting automation. 3+ ...

passionate about designing, building and maintaining reliable, scalable systems that support critical business applications? Do you thrive on solving complex technical challenges, improving system performance and delivering robust infrastructure solutions? About the team: A global leader in information and analytics, we help researchers and healthcare professionals advance science … design, operation, and continuous improvement of cloud-based enterprise system environments. The Senior Systems Engineer contributes to project planning, ensures system reliability, security, and performance, and independently drives the resolution of complex system issues. This role also supports change management processes and promotes automation and operational efficiency ...

translate mathematical and regulatory requirements into scalable production solutions. Providing technical leadership for strategic platform modernisation initiatives, including risk engine simplification, cloud migration, performance improvement, data platform optimisation, and operational resilience enhancements. Acting as a senior delivery lead and subject matter expert, guiding agile delivery teams, managing complex dependencies … IBOR/RFR transitions, and delivering mandated changes, including FDSF — Firm Data Submission Framework — into core risk systems without disrupting production SLAs. High-Performance Risk Architecture & Cloud-Native Data Platforms Deep SQL Server and Azure SQL Hyperscale expertise, including performance tuning, execution plan analysis, partitioning, clustered column ...

data reconciliation and the controlled retirement of legacy feeds while maintaining service continuity. Good understanding of investment data, such as instruments, portfolios, positions and performance, with deeper asset management experience a strong advantage. Technical toolkit: Snowflake, including Snowpipe, Streams and Tasks, Dynamic Tables and Snowpark Azure, with Databricks exposure … Data pipeline orchestration, Git-based CI/CD and DataOps Streaming, CDC and event-driven integration API, data sharing and consumption patterns Performance tuning and cost optimisation (FinOps) Data catalogue, data quality, lineage and data observability tooling AI-assisted coding and data quality monitoring tools Why Join ...

PostgreSQL databases hosted on Amazon RDS. Define and maintain resilient, secure, and scalable database architectures supporting critical services and operational workloads. Oversee database performance tuning, optimisation, capacity planning, and availability management. Design and maintain robust backup, recovery, disaster recovery, and business continuity capabilities. Provide expert-level operational support … role. Proven expertise administering, designing, and optimising PostgreSQL database platforms. Extensive hands-on experience with Amazon RDS , including high availability, backup, recovery, monitoring, and performance management. Experience designing and operating resilient cloud-hosted database solutions supporting critical services. Strong understanding of database security, resilience, disaster recovery, and operational best ...

orchestration (Docker/Kubernetes) where modules integrate with application platforms Practical operational knowledge for database platforms (backup/restore, high availability/disaster recovery, performance tuning basics, patching, and maintenance windows) Experience with Go for platform tooling #J-18808-Ljbffr ...

forestall future enhancements. Investigate, troubleshoot, and resolve Real Time production issues, working closely with traders, developers, and infrastructure teams. Ensure continuous system stability and performance across all FICC trading platforms, supporting both traders and institutional clients. Serve as the local subject matter expert for EMEA FICC trading infrastructure, owning … reduce manual intervention. Provide technical expertise on connectivity, data flows, and integration points between trading, pricing, and risk systems. Contribute to capacity planning, performance tuning, and resilience testing. Support global follow-the-Sun coverage and participate in on-call rotation as required. Required Skills and Experience: Tech ...

Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence … critical. You will design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance critical environments and want your work to have real market impact, we would love to hear from you. Please note that this ...

skills, investigate complex data issues and independently identify and implement technical solutions. You will be working on regulatory reporting projects where data accuracy, system performance and delivery against demanding deadlines are essential. Key Skills & Experience Strong commercial C# development experience. Advanced SQL skills, including complex queries, performance tuning and query optimisation. Proven experience investigating and resolving data-related issues, including data discrepancies and performance problems. Strong analytical and troubleshooting skills, with the ability to identify root causes and implement effective solutions. Experience working with complex, data-intensive applications and systems. Ability to understand business processes, analyse ...

design and implementation of observability strategies (metrics, logs, traces) that provide actionable insights into system health Use production telemetry to drive proactive improvements and performance tuning Actively grow our culture of quality and engage in quality-related topics across the organisation Act as a point of contact regarding ...

business intelligence initiatives. You will translate complex business requirements into scalable, high-quality data solutions, ensuring data is structured, governed and optimised for performance across the organisation. You will be responsible for developing conceptual, logical and physical data models, defining source-to-target mappings, and supporting the implementation … will ensure data architecture aligns with enterprise standards, governance frameworks and best practices. You will also drive improvements to existing data architecture, optimise data performance, and contribute to the definition of data modelling standards, automation and testing strategies. Success in this role requires strong technical expertise, excellent stakeholder management ...

engines (e.g., Starburst or similar) Own API contracts with living documentation in CI/CD Build production-grade, testable pipelines Drive observability, reliability, and performance Contribute to architecture decisions (modularity, DI, extensibility) What You Bring (Must-Have) Strong hands-on experience in Java (17/21) + Spring Deep … parsing/validation, query planning/optimization Experience with SQL planners or query transformation layers Strong grounding in data structures, algorithms, and backend performance Production-grade testing using JUnit 5, Mockito Experience with clean architecture, DI, modular design Comfortable owning CI/CD, code quality, observability Familiarity with Docker ...

Azure, Citrix, Windows, Linux and Cisco., making heavy use of configuration management, automation, and source control best practices. Responsibilities Proactively identify and remediate any performance, capacity issues and resiliency weaknesses in the SaaS Infrastructure. (active Ops Ramp/SW Monitoring etc.) Ensure resiliency best practices are followed throughout … aspects of the technology infrastructure Patch management Automate tasks with basic scripting Troubleshoot incidents and handle escalations to vendors where appropriate Provide system performance tuning, optimization, and capacity planning Participate in any and all technology projects/BAU initiatives designed to better service the firm. Systems administration experience ...

will write clean, maintainable and testable code in line with established development standards, troubleshoot complex issues, investigate application behaviour and identify opportunities to improve performance and reliability. You will also contribute to technical documentation, user guides, training materials and stakeholder demonstrations, ensuring solutions are clearly understood and successfully adopted. … Developer, with a thorough understanding of both fixed-format and free-format RPG, alongside strong SQL skills, including writing, embedding and optimising queries for performance and maintainability. Experience with modern RPG development techniques, including modules, service programs and activation groups, as well as application design and established software engineering ...