1 to 25 of 40 Performance Tuning Jobs in London

experienced Senior Administrator specialising in Unix/Linux environments and database management within the financial services sector. This role is critical to the stability, performance, and scalability of a recently implemented core banking platform (live since October). The successful candidate will be expected to hit the ground running … enterprise databases (including SQL Server and Oracle environments) supporting core financial applications Manage and support clustered database environments, including Oracle RAC Ensure high availability, performance tuning, and data integrity across all database platforms Application & Web Layer Support Support and manage front-end application environments, with experience in Flexcube ...

Database Developer - Data-Driven Software Company - London (Tech stack: SQL Database Developer, SQL Server 2022, PostgreSQL, C#, T-SQL, SSIS, SSRS, SSAS, Performance Tuning, Query Optimisation, Software Development, Data Engineering, SQL Database Developer) Founded in 2015, our client is a rapidly growing software company focused on delivering high … performance data solutions for enterprise clients. With a strong presence across the U.S. and Europe, they're now scaling their operations in the UK to support growing demand for their cutting-edge data products and services. To support this expansion, they are on the lookout for a talented ...

focus on Oracle environments, Linux/AIX administration, and core banking systems. The successful candidate will play a key role in ensuring the stability, performance, security and scalability of critical platforms within a highly regulated environment. The role Administer and optimise Oracle databases within critical banking platforms Manage … maintain Linux (RHEL/Oracle Linux) and AIX environments Perform upgrades, patching, tuning and performance optimisation across infrastructure and database layers Support backup, recovery and disaster recovery processes using RMAN and Data Guard Work closely with application and infrastructure teams to troubleshoot production issues Automate routine administration tasks ...

hands-on Senior Data Architect who is equally comfortable designing the target state for a multi-system SQL data estate, writing and tuning the T-SQL that delivers it, and standing up the security, monitoring and operational practices that keep it running. You will own data architecture across … framework and PowerShell development at expert level partition design and partition-aligned indexing, clustered/nonclustered index strategy, deduplication, parallel-run cutovers, schema migration, performance tuning of high-impact production queries. Driving the in-flight ETL replatform replacing legacy SSIS jobs with a table-driven, parallel ...

Terraform, Ansible and on prem. Data Pipelines: Kafka, CDC (Change Data Capture) tools like Debezium. Technical Requirements Essential Expert-level knowledge of **PostgreSQL** (Performance tuning, vacuuming, indexing). Hands-on experience with **ClickHouse** (managing clusters, MergeTree engines, and tuning for high-concurrency). Proficiency in **Snowflake** administration ...

Server and SAP Business One backend tables Database Management : Write optimized SQL queries, stored procedures, and indexing strategies to efficiently handle large datasets Performance Optimization : Monitor and enhance API performance, database query execution, and application scalability Documentation : Maintain clear and detailed documentation for APIs, database structures … Code Quality : Conduct code reviews, debugging, and error handling to maintain system reliability Best Practices : Stay up to date with API design standards, database performance tuning, and cloud integration trends What You’ll Need 5+ years of backend development experience Strong .NET skills for API development and business ...

stack (Data Factory, Synapse/Fabric, SQL-based semantic layers). Advanced Power BI: data modelling (star schemas), advanced DAX, Power Query/M, performance tuning, RLS and deployment via pipelines. A strong understanding of Power BI engineering discipline: PBIP/TMDL source format, Git-based version control … with demonstrable experience in a team setting. Proven ability to carry out peer review and QA of analytics work, spotting model errors, DAX issues, performance problems and UX weaknesses. Excellent written and verbal communication skills, including presenting to underwriting and senior stakeholders, with a track record of turning ambiguous ...

pipelines, including ETL/ELT workflows, batch processing, and scheduled data builds. Strong understanding of data modelling, transformations, and downstream data consumption. Experience with performance tuning for backend services or data pipelines. Proficient SQL skills for data analysis, validation, and troubleshooting. Experience working with data warehouses, data lakes ...

pipelines, including ETL/ELT workflows, batch processing, and scheduled data builds. Strong understanding of data modelling, transformations, and downstream data consumption. Experience with performance tuning for backend services or data pipelines. Proficient SQL skills for data analysis, validation, and troubleshooting. Experience working with data warehouses, data lakes ...

modelling, and system integration. Advanced SQL skills and experience building and maintaining ETL pipelines. Advanced Power BI expertise, including DAX, dataflows, model optimisation, and performance tuning. Proven experience extracting and working with data from Azure, Salesforce, and ITSM platforms. Strong understanding of service delivery and operational metrics (SLAs, KPIs ...

seeking an experienced Senior kdb+ Developer to join the BestX engineering team. In this role, you will design, build, and optimise high‐performance data platforms using kdb+, supporting BestX's multi‐asset analytics capabilities. The ideal candidate brings deep expertise in kdb+ tick architectures, large‐scale performance tuning … State Street's Global Markets and GlobalLink ecosystem, is the industry‐standard, multi‐asset Transaction Cost Analysis (TCA) platform . Built as a high‐performance analytics platform, BestX processes over one billion market data updates per day , delivering independent, venue‐agnostic insights across FX, fixed income, and equities. BestX ...

data models Creating dashboards and reports for senior leaders and business users Improving data quality, documentation, and governance Optimising SQL queries and dashboard performance Working with stakeholders to define KPIs and technical requirements Supporting junior engineers with code reviews and BI best practice Skills and experience: 5+ years' experience … data engineering, analytics engineering, or technical analytics Strong SQL skills, including joins, window functions, and performance tuning Experience with Databricks, Snowflake, or BigQuery Strong data modelling experience, ideally with dbt Experience with BI tools such as Omni, Power BI, Tableau, Looker, or Sigma Strong stakeholder management and communication ...

requirements and deliver tailored solutions. Ensure data quality, integrity, and security across all systems and processes. Optimise and troubleshoot existing data architectures to improve performance and reliability. Implement best practices for data engineering, including version control, testing, and documentation. Work closely with stakeholders to provide insights and support data … Python for ETL/ELT pipelines Proven ability to lead, mentor, and develop data engineering teams Hands-on experience with data warehousing, modelling, and performance tuning Solid understanding of data governance, quality, and lineage frameworks Experience implementing monitoring, automation, and platform reliability practices Strong stakeholder management skills, translating ...

part of a global, cross-divisional group supporting State Street Alpha. State Street Alpha redefines the common definition of 'alpha' to mean powering better performance and outcomes at every point on the investment life cycle. State Street Alpha is the market leading, first open platform from a single provider … dashboard offering. Skills & Attributes Analytical thinking with strong problem‐solving abilities. Proficiency in SQL with 5+ years of hands‐on experience (complex queries, performance tuning, data modelling). Working knowledge of ETL processes and data flows, including validation, transformation, and loading. High proficiency in Excel for data analysis ...

Define environment strategies (dev/test/prod), CI/CD pipelines, and release processes for Databricks deployments Implement monitoring, logging, cost optimisation, and performance tuning across the platform Design and implement data pipelines using Delta Live Tables, Auto Loader, and Databricks Workflows for both batch and streaming … GDPR, ISO 27001, sector-specific standards) What success looks like in the role: Delivery of robust, secure, and scalable Databricks platforms that meet client performance and cost expectations Clear, well-architected solutions that balance flexibility, governance, and operational efficiency Strong client relationships built on trust, technical credibility, and effective ...

transactions and flows Driving projects from inception through design, build, testing and release Core requirements: Strong C#/.NET development experience Advanced SQL skills (performance tuning, complex queries, data modelling) Azure cloud experience (App Services, Functions, Service Bus, DevOps etc.) Experience building highly available, resilient systems Excellent communication ...

ground running. Extensive Database experience, focusing on PostgreSQL, MySQL Server and CosmosDB Strong Infrastructure as Code (IaC) and Automation Database monitoring and performance tuning SQL replication Deep Azure background Patching, upgrades and maintenance High availability database environments Highly Desirable Skills: Terraform CI/CD pipelines Azure DevOps Kubernetes … Database Engineer will be responsible for: Managing and maintaining cloud and on-prem database environments Supporting critical 24/7 production systems Improving database performance, availability, and resilience Building automation and Infrastructure as Code solutions Implementing and improving monitoring across database platforms Managing backup, recovery, disaster recovery, and maintenance ...

Senior Java Developer Annual Salary: Competitive with performance-related bonus Location: City of London (Hybrid - 3 days a week onsite) Job Type: Full-Time, Permanent A new exciting opportunity has become available for an experienced Senior Java Developer to join a growing Technology department working specifically within Capital Markets … customising third-party trading systems. This position is a key step towards a Head of Engineering role, anticipated within 24 months based on performance and organisational growth. Day-to-day of the role: Design, develop, and maintain in-house systems, APIs, reporting tools, and the client web portal. Implement ...

Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (on-prem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor performance, availability, capacity and reliability. Oversee site collections, permissions, authentication, service applications and governance. Support backup, restore and disaster recovery processes. Troubleshoot complex cloud … React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint on-prem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. Understanding of authentication, permissions, governance and security ...

Docker, Kubernetes, and CI/CD . Responsible AI: Ensure our systems are trustworthy by implementing quantifiable metrics for bias detection, explainability, and privacy. Performance Tuning: Optimize data workflows for maximum scalability and cost-efficiency. Insurance Domain experience is added advantage. Your Technical Toolkit AI/ML: Expert ...

C++) - Experienced in data persistence across SQL (Postgres, MySQL), NoSQL (Cassandra, MongoDB) and TSDB ( TimescaleDB , InfluxDB , Prometheus TSDB) - Skilled in schema design, optimisation and performance tuning Distributed Systems & State Management - Strong understanding of distributed systems, transaction management and telemetry pipelines - Understands how state is managed across multiple systems ...

experienced PostgreSQL DBAs to join a business-critical AWS cloud programme. This is a hands-on operational DBA role focused on maintaining platform stability, performance, and availability within a live production environment. Key Responsibilities Support and maintain AWS PostgreSQL databases Monitor database performance and platform health Identify … resolve performance issues proactively Carry out database optimisation and housekeeping Reduce technical debt and improve operational stability Communicate risks, issues, and service impacts to stakeholders Required Experience Strong PostgreSQL DBA experience AWS cloud experience (RDS PostgreSQL/Aurora preferred) Performance tuning and database optimisation Production/live ...

entertainment sector. They're expanding their data engineering capability as demand continues to scale. With data at the core of how the business drives performance, commercial insight and strategic decision-making, this is an opportunity to join a company investing heavily in modern, cloud-native data architecture. This … Architect and evolve robust, scalable data infrastructure and workflows Lead technical design decisions and contribute to long-term platform strategy Drive operational excellence across performance, security, governance and cost optimisation Mentor engineers and raise engineering standards across the team Champion modern architectural patterns including event-driven, streaming and distributed ...

River IMS solutions, including: Client assistance in optimal use of the system User administration/privileges Parameter configuration changes System availability Application and database performance tuning Daily operational processing monitoring and support Charles River IMS and database software patches Charles River IMS version upgrades Assistance with problem support … StateStreet.com/careers About State Street Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success. ...

Cloud Ecosystem Connectivity: Seamlessly integrate data across major cloud platforms (AWS, Azure, GCP), SaaS applications, and modern data warehouses like Snowflake or Databricks . Performance Tuning: Act as the senior technical lead for debugging, advanced error handling, and pipeline optimization to ensure high scalability and performance. Collaboration: Partner ...