76 to 100 of 131 Performance Tuning Jobs in the UK

Senior Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £80,000 per annum
space is continuing to invest heavily in its data platform as demand scales. Data sits at the centre of how this business drives commercial performance, insight and strategic decision-making, they're building out a modern, cloud-native data architecture to support that growth. This is an excellent opportunity … doing Designing and evolving scalable, resilient data platforms and pipelines Owning technical decisions and contributing to long-term platform strategy Improving performance, security, governance and cost efficiency across the data estate Acting as a technical leader within the team, mentoring engineers and raising standards Driving adoption of modern patterns ...

Applications Operations Analyst

Hiring Organisation
Ryder Reid Legal Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
join their London-based team. The Role This position sits within the Applications Operations team and plays a key role in ensuring the stability, performance, and security of enterprise application environments. You'll be responsible for the day-to-day support, maintenance, and optimisation of business-critical systems, while … Responsibilities Perform system maintenance, patching, and upgrades in line with change management processes Manage user access (provisioning, de-provisioning, and access reviews) Monitor system performance and proactively address issues Respond to incidents and service requests, ensuring SLA adherence Troubleshoot and resolve application issues, conducting root cause analysis Support system ...

Senior BI Data Architect (8 Month FTC)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£87,000 - £97,000 per annum
Only) This is a high-impact opportunity to shape the future of a modern data platform at scale. You will take ownership of architecture, performance, and governance across a Databricks Lakehouse environment, directly influencing how business decisions are made. THE COMPANY They are a global, data-driven organisation operating … Migrate complex legacy SQL into clean, modular, and maintainable pipelines. Build scalable transformation frameworks using Spark and Python or SQL-based pipelines. Optimise query performance across large datasets, improving efficiency and cost control. Define and manage data modelling standards, including dimensional modelling approaches. Develop CI and CD pipelines ...

Senior BI Data Architect (8 Month FTC)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£87,000 - £97,000 per annum
Only) This is a high-impact opportunity to shape the future of a modern data platform at scale. You will take ownership of architecture, performance, and governance across a Databricks Lakehouse environment, directly influencing how business decisions are made. THE COMPANY They are a global, data-driven organisation operating … Migrate complex legacy SQL into clean, modular, and maintainable pipelines. Build scalable transformation frameworks using Spark and Python or SQL-based pipelines. Optimise query performance across large datasets, improving efficiency and cost control. Define and manage data modelling standards, including dimensional modelling approaches. Develop CI and CD pipelines ...

Senior BI Data Architect (8 Month FTC)

Hiring Organisation
Harnham - Data & Analytics Recruitment
Location
Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£87,000 - £97,000 per annum
Only) This is a high-impact opportunity to shape the future of a modern data platform at scale. You will take ownership of architecture, performance, and governance across a Databricks Lakehouse environment, directly influencing how business decisions are made. THE COMPANY They are a global, data-driven organisation operating … Migrate complex legacy SQL into clean, modular, and maintainable pipelines. Build scalable transformation frameworks using Spark and Python or SQL-based pipelines. Optimise query performance across large datasets, improving efficiency and cost control. Define and manage data modelling standards, including dimensional modelling approaches. Develop CI and CD pipelines ...

DevOps Engineer

Hiring Organisation
Logistex
Location
Kettering, North Northamptonshire, Northamptonshire, United Kingdom
Employment Type
Permanent
releases Develop scripts and tools (e.g., Ansible) to automate operational tasks and infrastructure provisioning Implement monitoring and alerting systems to ensure application health and performance Manage infrastructure across on-premises and cloud environments (AWS, Azure) Ensure security compliance and implement best practices for applications and infrastructure Collaborate with internal … Engineering, or Site Reliability Engineering Strong Linux system administration and networking skills Experience with Docker and containerised deployments Familiarity with PostgreSQL database management and performance tuning Knowledge of backup/DR, load testing, and server hardening Apply now to be part of our growing team ...

Kafka Admin Engineer

Hiring Organisation
Ubique Systems UK Limited
Location
Manchester, Lancashire, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Expertise (Must-Have) Kafka architecture: brokers, topics, partitions, replication Kafka components: Kafka Connect, Schema Registry, Streams, ZooKeeper/Kraft Topic & partition management, consumer groups Performance tuning, retention, throughput optimisation Cluster setup, upgrades, scaling and failover Troubleshooting (eg lag, ISR, leader issues) Security: SSL/TLS, ACLs, authentication, encryption ...

Devops

Hiring Organisation
Hirexa Solutions UK
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Expertise (Must-Have) • Kafka architecture: brokers, topics, partitions, replication • Kafka components: Kafka Connect, Schema Registry, Streams, ZooKeeper/Kraft • Topic & partition management, consumer groups • Performance tuning, retention, throughput optimisation • Cluster setup, upgrades, scaling and failover • Troubleshooting (e.g. lag, ISR, leader issues) • Security: SSL/TLS, ACLs, authentication, encryption ...

Senior Ruby Engineer - £110K

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines, IaC Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Provides hands-on technical leadership ...

ML Engineer

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
load data from various sources. AI model Feature Engineering: Integrate structured and unstructured data from internal and external systems into centralized data platforms. Performance Tuning of AI/models: Optimize data workflows and queries for performance, scalability, and cost-efficiency. Building Agentic Systems: Developing intelligent AI agents … that can reason, plan, and execute tasks autonomously using LLMs and other tools. LLM application Development: LLM fine-tuning adapting pretrained LLMs for specific tasks using techniques like parameterefficient fine-tuning (PEFT) (e.g., LoRA, QLoRA). Implementing Retrieval-Augmented Generation pipelines to enhance the knowledge and accuracy ...

.NET Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Exeter, Devon, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
reviews and contribute to best practices and coding standards Troubleshoot, debug, and optimise existing applications Contribute to continuous improvement of development processes and system performance Essential Skills & Experience Strong hands-on experience with C# Proven experience working wi th .NET C ore in a commercial environment Solid understanding … frontend development Working knowledge of Azure Blob Stor age or similar cloud storage solutions Strong experience wi th SQL databa ses (query writing, performance tuning) Experience building scalable and maintainable web application Ability to work independently in a fast-paced environment Desirable Skills Experience w ith Angul ...

Tagetik Developer

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£0.00 - £428.50 per day
optimize Tagetik Excel reports , including: Matrix Reports SQL Query Reports Write, optimize, and troubleshoot SQL code , including: Stored procedures Data transformation logic Query performance improvements Support ongoing system enhancements and production issues Collaborate with internal stakeholders to deliver robust financial and reporting solutions Required Experience Minimum 2+ years … based) Solid working knowledge of SQL , including coding and troubleshooting Proven hands-on development experience (priority focus) Desirable Skills Additional depth in SQL performance tuning and advanced query design Experience working in Insurance or Financial Services sectors (advantageous but not essential ...

Tagetik Developer

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£0.00 - £428/day
optimize Tagetik Excel reports , including: Matrix Reports SQL Query Reports Write, optimize, and troubleshoot SQL code , including: Stored procedures Data transformation logic Query performance improvements Support ongoing system enhancements and production issues Collaborate with internal stakeholders to deliver robust financial and reporting solutions Required Experience Minimum 2+ years … based) Solid working knowledge of SQL , including coding and troubleshooting Proven hands-on development experience (priority focus) Desirable Skills Additional depth in SQL performance tuning and advanced query design Experience working in Insurance or Financial Services sectors (advantageous but not essential ...

Senior Microsoft Platform Engineer

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
SharePoint (on-prem and cloud), IIS/web platforms, Azure services, and identity services including SSO and MFA Proactively monitor, maintain, and optimise platform performance, availability, capacity, and disaster recovery Lead complex troubleshooting, root cause analysis, and incident resolution Deliver platform upgrades, deployments, and infrastructure changes in line with …/web infrastructure, reporting platforms, and identity management (SSO/MFA) Experience operating at third-line level within complex, global environments Strong understanding of performance tuning, monitoring, capacity planning, and disaster recovery Experience delivering upgrades and deployments within structured change control environments Ability to lead technically, mentor others ...

Systems Developer

Hiring Organisation
Erin Associates
Location
Scunthorpe, South Humberside, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
capability Ensuring changes are delivered safely with minimal disruption to operations What we’re looking for Strong SQL development experience (including stored procedures and performance tuning) Experience with Crystal Reports Strong experience working with Epicor BisTrack ERP Comfortable working in legacy environments and improving existing solutions Strong analytical ...

Systems Developer

Hiring Organisation
17918
Location
Barrow upon Humber, Lincolnshire, United Kingdom
reporting capability Ensuring changes are delivered safely with minimal disruption to operations What were looking for Strong SQL development experience (including stored procedures and performance tuning) Experience with Crystal Reports Strong experience working with Epicor BisTrack ERP Comfortable working in legacy environments and improving existing solutions Strong analytical ...

Systems Developer

Hiring Organisation
Erin Associates
Location
Barrow-Upon-Humber, South Humberside, North East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
reporting capability Ensuring changes are delivered safely with minimal disruption to operations What were looking for Strong SQL development experience (including stored procedures and performance tuning) Experience with Crystal Reports Strong experience working with Epicor BisTrack ERP Comfortable working in legacy environments and improving existing solutions Strong analytical ...

Senior SharePoint Developer

Hiring Organisation
Larbey Evans
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £100,000 per annum
CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity Services (BCS), External Content Types (ECTs), and SQL Server design and optimisation ...

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
love to hear from you. Key Skills 4+ years' experience with Ruby on Rails Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support ...

Senior Quantexa Data Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
technical authority and client interface, translating regulatory or business problems into scalable Quantexa architectures Leads teams in shaping data models, ER logic, and performance tuning across high-volume, enterprise datasets Mentors teams while influencing delivery standards, design patterns, and best practice within the workstream In order to secure ...

Quantexa Technical Lead - Senior Manager

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
technical authority and client interface, translating regulatory or business problems into scalable Quantexa architectures Leads teams in shaping data models, ER logic, and performance tuning across high-volume, enterprise datasets Mentors teams while influencing delivery standards, design patterns, and best practice across multiple workstreams In order to secure ...

Oracle Lead Developer

Hiring Organisation
Hays Technology
Location
Glasgow, City of Glasgow, United Kingdom
Employment Type
Contract
development and database design Proven experience leading development efforts or small teams Experience creating technical documentation such as TDDs Strong understanding of database performance tuning and optimisation Familiarity with version control tools (e.g. Git, SVN, PVCS) Experience with tools like JIRA and Confluence Exposure to Oracle Forms/ ...

Technical Lead - Ruby

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines, IaC Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Provides hands-on technical leadership ...

Principal Data Engineer

Hiring Organisation
WRK DIGITAL LTD
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£85,000
Azure Data Factory and Azure Databricks. Competence in and hands-on experience managing Databricks environments and developing lakehouse architectures with a focus on automation, performance tuning, cost optimisation, and system reliability. Proven proficiency in programming languages such as Python, T-SQL, and PySpark, with practical knowledge of test ...

Infrastructure Engineer – Secure Browser – Azure Virtual Desktop – Expedia Group

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
Wallington, Surrey, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £439 per day
Azure Virtual Desktop & Modern Workspace Engineering Provide operational support and engineering expertise for Microsoft Azure Virtual Desktop environments, including host pool administration, image management, performance optimization, and troubleshooting Help deliver a secure, high-performing modern workspace experience for enterprise users Support virtual desktop lifecycle activities such as provisioning, patching … based end-user computing services Windows Endpoint & Core Infrastructure Support Maintain Windows 10/11 endpoints and Windows Server environments, including patching, application deployment, performance tuning, and system health monitoring Support enterprise management capabilities across Intune, Active Directory, DNS, DHCP, identity management, and related infrastructure services Troubleshoot complex ...