126 to 150 of 348 Performance Tuning Jobs in the UK

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
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. Youll 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, wed love to hear from you. The Role Ultra-Low Latency Engineering Develop ...

Senior SharePoint Developer & Administrator

Hiring Organisation
Ryder Reid Legal
Location
London Area, United Kingdom
APIs and Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (onprem) 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 … JavaScript, React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint onprem 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 ...

Senior Akamai Security Engineer

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Knutsford, Cheshire, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £600/day
across large-scale digital platforms. This role sits at the sharp end of web security - protecting high-traffic environments from modern threats while improving performance and resilience. Expect real engineering challenges, complex environments, and zero room for checkbox security. Key Responsibilities Architect, configure, and optimise Akamai security solutions including … strategies, and CDN optimisation Experience supporting large-scale, high-traffic production environments Scripting and automation skills (Python, Shell, Akamai APIs) Strong troubleshooting, analytical, and performance-tuning capability Nice to Have Akamai certifications (ACE, Akamai Security Architect) Cloud platform experience (Azure, AWS, GCP) Familiarity with DevSecOps practices, CI/ ...

Senior Low Latency Developer

Hiring Organisation
CMC Markets
Location
Greater London, England, United Kingdom
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’ll 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’d love to hear from you. The Role Ultra-Low Latency Engineering ...

Senior Business Intelligence Developer

Hiring Organisation
Eden Smith Group
Location
City of London, London, United Kingdom
APIs, cloud platforms) Ensure governance, security and best practice standards are followed Engage directly with senior business stakeholders to refine reporting needs Support UAT, performance tuning and production deployment Required Experience Strong hands-on experience with Power BI (Desktop & Service) Advanced DAX and data modelling expertise Solid ...

DevOps Engineer

Hiring Organisation
Yolk Recruitment Ltd
Location
Cardiff, South Glamorgan, Wales, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Looking For 3+ years DevOps experience in a SaaS environment Strong AWS expertise Advanced Kubernetes administration Advanced Kafka administration (DR, topic scaling, performance tuning) Infrastructure as Code (Terraform essential) Config management (Ansible, Chef or Puppet) CI/CD tooling (Git, Jenkins or GitHub Actions) Distributed systems knowledge Strong ...

Data Engineer

Hiring Organisation
Youngs Employment Services
Location
Hammersmith and Fulham, Greater London, Notting Barns, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Excellent Benefits
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 ...

Database Developer

Hiring Organisation
Bowerford Associates
Location
Exeter, Devon, Countess Wear, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum Pension, Healthcare, Good Holidays
success in this role you will need experience in the following key areas: - Relational database analysis and design experience Experience with performance tuning Data experience, including warehousing analytics and visualisation platform development e.g. Power BI/Tableau Evidence of high-level participation in database-orientated commercial projects Proficient ...

Database Developer

Hiring Organisation
First Databank
Location
Exeter, Devon, South West, United Kingdom
Employment Type
Permanent
Salary
£10,000
/style - Utilise AI agentic tools within software development to enhance productivity and efficiency About You - Relational database analysis and design experience - Experience with performance tuning - Data experience, including warehousing analytics and visualisation platform development, e.g. Power BI/Tableau - Evidence of high-level participation in database-orientated ...

SC Cleared SQL Server Architect

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £640 per day + Inside IR35
Manager, automation (CloudFormation/Terraform/PowerShell). Validate SharePoint DB compatibility (content/search/service). Produce resilience pattern catalogue incl. TCO, performance, complexity: Always On AG; FCI; SIOS DataKeeper; AWS Elastic DR; AWS DMS Deliverables PoV plan & metrics HA/DR pattern catalogue (pros/cons … prerequisites) DR testing with SharePoint team Performance findings (latency, throughput, failover) Final recommendation & next-step design Core Responsibilities Architect SQL Server HA/DR in AWS. Design Always On patterns (listener, quorum, witness). Evaluate AWS services: EC2, EBS, FSx, Route 53, CloudWatch, Backup, SSM, CloudFormation. Ensure network/ ...

IT Support Engineer

Hiring Organisation
Matchtech
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £48,000 per annum
infrastructure, including servers, storage, networks, and cloud services.* Strong analytical and troubleshooting abilities, with a methodical approach to resolving complex issues.* Ensure the availability, performance, and security of the IT infrastructure.* Oversee/lead infrastructure projects from planning to execution, ensuring timely delivery and adherence to best practices, both … house and with our MSP.* Monitor and manage system performance, identifying and resolving issues proactively.* Collaborate with other MSP IT teams to support business operations and projects.* Develop and maintain infrastructure documentation, including diagrams and procedures.* Implement and manage backup and disaster recovery solutions.* Stay up to date with ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Cardiff, UK
Employment Type
Full-time
.NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful … Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real-time monitoring of trading systems Modernising and upgrading legacy codebases, driving best practices in .NET development What ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Gloucester, Gloucestershire, UK
Employment Type
Full-time
.NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful … Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real-time monitoring of trading systems Modernising and upgrading legacy codebases, driving best practices in .NET development What ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Portsmouth, Hampshire, UK
Employment Type
Full-time
.NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful … Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real-time monitoring of trading systems Modernising and upgrading legacy codebases, driving best practices in .NET development What ...

Software Engineer

Hiring Organisation
CipherTek Recruitment
Location
Plymouth, Devon, UK
Employment Type
Full-time
.NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful … Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and maintainability Developing frameworks and tooling for real-time monitoring of trading systems Modernising and upgrading legacy codebases, driving best practices in .NET development What ...

SQL DBA

Hiring Organisation
Sanderson Recruitment
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
Up to £417.22 per day + Inside IR-35
across Microsoft SQL Server environments, with additional exposure to PostgreSQL and MySQL. Day to day, you'll handle installation, configuration, patching and maintenance, plus performance tuning, monitoring, and health checks. You'll own backup and recovery processes, high-availability solutions, and troubleshooting of complex database issues. … also support developers with database design, schema improvements and optimised SQL. The role involves improving performance through indexing strategies, query optimisation and capacity planning, as well as maintaining strong security controls such as encryption, auditing and role-based access. You'll contribute to data migrations, integrations, and automation using ...

Systems Integrator (IT)

Hiring Organisation
Rullion Engineering Cumbria
Location
Teddington, London, United Kingdom
Employment Type
Permanent
physical devices, software components, and network infrastructure. * You will develop and execute integration test plans for hardware/software systems. * You will perform functional, performance, and stress testing on integrated systems. * You will Identify and resolve integration issues across hardware, software, and network layers. * You will document and understand … different architectures supporting distributed, real-time systems. * You will understand how to administer Linux based environments, including performance tuning and security hardening. * You will develop and execute shell scripts for automation and system orchestration. * You will understand the systems engineering lifecycle * You will understand changes in CI/ ...

PostgreSQL Database Developer

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Contract, Work From Home
support application upgrades. Support the deployment of cloud-based infrastructure in preparation for a major system update. Optimize queries, indexes, and schema design for performance improvements. Collaborate with DevOps and application teams to ensure seamless integration. Utilize CI/CD pipelines and version control tools for database releases. Essential … Experience Proven commercial experience in PostgreSQL database development and administration. Strong SQL skills and deep understanding of relational database design principles. Solid knowledge of performance tuning, indexing, and query optimization. Hands-on experience with cloud database services such as AWS RDS or Azure PostgreSQL. Familiarity with CI/ ...

SQL Server & Infrastructure Engineer

Hiring Organisation
The Recruitment Bureau (Kent) Ltd
Location
Northampton, Northamptonshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
systems running 24/7 for clients who simply cannot afford downtime. This is far more than a maintenance position. You'll be optimising performance, designing resilient architectures, and on occasion travelling internationally to support client deployments. Key Responsibilities Database Mastery: Performance-tuning and maintaining Microsoft ...

Data Platform Engineer

Hiring Organisation
TXM Recruit
Location
Milton Keynes, England, United Kingdom
Manage and optimise Fabric workloads including lakehouse, warehouse, and associated services Administer and maintain SQL Server environments supporting the wider data ecosystem Monitor platform performance, capacity utilisation, and cost efficiency Conduct root cause analysis across platform incidents and implement preventative improvements Contribute to Agile-based delivery of platform enhancements … cloud-based data platforms in Microsoft Azure Experience working within SLA-driven environments with structured incident, change, and problem management Understanding of capacity planning, performance tuning, and operational monitoring Ability to work across both legacy and modern cloud-based data environments Desirable Experience Experience with GitHub, GitHub Actions ...

Azure Data Architect

Hiring Organisation
ARC IT Recruitment Ltd
Location
Brighton, East Sussex, South East, United Kingdom
Employment Type
Permanent
Salary
£90,000
ensure seamless integration with various data sources. Implement data governance and security best practices. Provide technical leadership and guidance to the development team. Conduct performance tuning and optimization of data processes. Skills required: Proven experience as a Data Architect working within Azure. Expertise in Azure Databricks and Azure ...

Senior Software Developer

Hiring Organisation
Partnerscale
Location
Bicester, Oxfordshire, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
ASP.NET Core experience including API development – Experience building Android focused apps using .NET MAUI or Xamarin – Solid knowledge of Entity Framework Core and database performance tuning – Strong SQL skills across SQL Server or Azure SQL – Experience working in Git based collaborative environments – Exposure to automated testing practices Keywords ...

Cloud Infrastructure Team Lead - AWS & Azure

Hiring Organisation
Hireful
Location
Milton Keynes, Buckinghamshire, South East, United Kingdom
Employment Type
Permanent
Salary
£80,000
Terraform and Ansible, and a proven track record leading high-impact cloud projects. You'll understand cloud security and governance inside-out, thrive on performance tuning, and be a confident communicator with solid stakeholder skills. Familiarity with GitHub, WAFs, monitoring tools, and serverless tech like AWS Lambda ...

Senior .NET Developer Data & Product Analytics

Hiring Organisation
Newton Blue
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
production systems with: .NET/C# ASP.NET Core or equivalent web frameworks Angular (or similar modern SPA framework) SQL Server (schema design, complex queries, performance tuning) MongoDB (or equivalent NoSQL document store) RESTful APIs; NServiceBus or equivalent messaging framework. Proven experience in data analysis and/or analytics ...

Senior Principal Engineer

Hiring Organisation
Vallum Associates Limited
Location
Sheffield, UK
Employment Type
Full-time
related field. 10+ years of engineering experience, with at least 5 years in a senior or principal engineering role. Expertise in infrastructure components, performance tuning, and capacity planning. Hands-on experience with microservices, software development, infrastructure automation, API development, and application systems design. Strong understanding of Site Reliability ...