101 to 125 of 192 Performance Tuning Jobs in England

Web Applications Support Engineer

Hiring Organisation
Proactive Appointments
Location
Windsor, Berkshire, UK
Employment Type
Full-time
join them on a contract basis. You’ll play a key role in maintaining, troubleshooting, and improving critical web applications, ensuring high availability and performance for end users. For this role, the key essential skills are: JavaScript, SQL & Unix/Linux 6 Months + Inside IR35 Key Responsibilities Provide …/2 line support for web-based applications Investigate and resolve incidents, bugs, and performance issues Work closely with technical teams to diagnose and fix defects Perform root cause analysis and implement preventative measures Maintain documentation for systems, processes, and fixes Required Skills & Experience Strong experience with JavaScript ...

Web Applications Support Engineer

Hiring Organisation
Proactive Appointments
Location
Windsor, Berkshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£220 - £230 per day
join them on a contract basis. You’ll play a key role in maintaining, troubleshooting, and improving critical web applications, ensuring high availability and performance for end users. For this role, the key essential skills are: JavaScript, SQL & Unix/Linux 6 Months + Inside IR35 Key Responsibilities Provide …/2 line support for web-based applications Investigate and resolve incidents, bugs, and performance issues Work closely with technical teams to diagnose and fix defects Perform root cause analysis and implement preventative measures Maintain documentation for systems, processes, and fixes Required Skills & Experience Strong experience with JavaScript ...

Senior Systems Analyst

Hiring Organisation
Ideal Personnel & Recruitment Solutions Limited
Location
Milton Keynes, Buckinghamshire, United Kingdom
Employment Type
Permanent
business or systems analysis within an ERP centric environment. Hands on experience with enterprise resource planning systems Relational database experience e.g. writing queries, and performance tuning. Systems integration, API’s and data flows between enterprise platforms. Communication and stakeholder engagement skills with a customer driven approach. The ability ...

SQL DBA

Hiring Organisation
Hays
Location
Liverpool, Merseyside, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Your new role To administer and manage the organisation's SQL Server estate, ensuring that the reliability, integrity, security and performance of these systems are maintained. Responsible for configuration, maintenance, optimisation, upgrades/update, and overall database performance within the group. Taking a proactive approach to adopting best … range of existing and new products Proactively manage the day-to-day operations of the databases and infrastructure Management of SQL servers, including configuration, tuning, backups, and DR Management of database transitions through different environments (dev, test, live, migrations, etc.) Ensure that all databases are functioning optimally, are scalable ...

Oracle Database Application Support Team Lead

Hiring Organisation
17918
Location
Wokingham, Berkshire, United Kingdom
associated application stacks. Perform and lead Oracle Database upgrades, patching, and software deployments in customer environments. Conduct 3rd line diagnostics and fault resolution, including performance tuning, data issues, backup failures, and application connectivity problems. Proactively review monitoring, capacity, performance, and backup metrics; implement corrective actions before customer … work and manage conflicting priorities. Translate complex technical issues into clear, practical explanations for customers and internal stakeholders. Provide recommendations to customers on stability, performance, resilience, and upgrade planning. Continuous Improvement & Automation Identify inefficiencies within the service and directly contribute to: Scripted maintenance Automated health checks Standardised deployment ...

Oracle Database Application Support Team Lead

Hiring Organisation
17918
Location
Bagshot, Surrey, United Kingdom
associated application stacks. Perform and lead Oracle Database upgrades, patching, and software deployments in customer environments. Conduct 3rd line diagnostics and fault resolution, including performance tuning, data issues, backup failures, and application connectivity problems. Proactively review monitoring, capacity, performance, and backup metrics; implement corrective actions before customer … work and manage conflicting priorities. Translate complex technical issues into clear, practical explanations for customers and internal stakeholders. Provide recommendations to customers on stability, performance, resilience, and upgrade planning. Continuous Improvement & Automation Identify inefficiencies within the service and directly contribute to: Scripted maintenance Automated health checks Standardised deployment ...

Database Engineer

Hiring Organisation
DGH Recruitment
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
global professional services organisation to recruit for Database Engineer. This role sits within a technology team responsible for designing, optimising and maintaining high-performance database platforms that underpin SaaS applications, reporting environments and client billing systems. The position combines technical leadership with hands-on engineering. Key responsibilities: - Design … optimise scalable, high-performance SQL database architectures - Own and improve stored procedures, reusable scripts and database standards - Provide technical leadership, mentoring junior engineers and leading code reviews - Deliver clear documentation covering data models and architectural decisions - Drive database-focused projects through to delivery Key requirements: - Strong experience with Azure ...

Senior Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
London Area, United Kingdom
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 ...

Senior Software Engineer

Hiring Organisation
Harrington Starr
Location
City of London, London, United Kingdom
modern systems, high standards, and sustainable delivery. The role This is a senior engineering opportunity within a specialist Site Reliability Engineering team focused on performance, uptime, and operational excellence across a business-critical trading platform. The role combines software engineering with reliability engineering. You’ll be involved in designing … What you will do Build tools, automation, and internal services that improve platform reliability Implement monitoring, telemetry, and observability standards across distributed systems Analyse performance across application, OS, and network layers to identify bottlenecks Help define and improve SLOs/SLAs for critical services Support engineering teams with architecture ...

SRE Engineer - Azure

Hiring Organisation
Redcentric
Location
Harrogate, North Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
managing systems. Develop and maintain automated tooling and processes for building, deployment and platform/configuration management. Maintain and improve CI/CD Pipelines. Performance tuning and capacity planning actions to align to client business needs. Working in, or supporting, implementation teams on Azure migration projects and managed … incident management and post-mortem activities to identify and address root causes of outages and improve system reliability. Identify opportunities for improving system performance and reliability and develop plans for implementing improvements. Provide guidance and training to other team members on best practices and principles within SRE/DevOPS ...

PostgreSQL DBA

Hiring Organisation
Levy Global
Location
City of London, London, United Kingdom
hands-on PostgreSQL DBA contractor to join a highly technical infrastructure team supporting complex production environments. Key responsibilities: PostgreSQL database administration and production support Performance tuning and optimisation High availability, replication, backup & disaster recovery Monitoring and troubleshooting database issues Supporting migrations/upgrades and platform improvements Working closely … Strong hands-on PostgreSQL DBA experience, Ideally over 7 years of experience Experience supporting large-scale or high-availability environments Good understanding of query performance and PostgreSQL internals Comfortable working in fast-paced engineering-driven environments Great Communication skills ...

Principal SQL Engineer

Hiring Organisation
Prism Digital
Location
Greater London, England, United Kingdom
Haves Front-office buy-side experience Systematic trading environments Quant research support OMS/PMS platforms Distributed systems exposure Legacy platform modernisation SQL Server performance tuning Trading desk interaction Why Join You’ll be joining a small team with high engineering standards, working alongside some very sharp people … performs. The problems themselves are genuinely interesting, centred around correctness in a concurrent, real-time environment rather than scale. Benefits Bonus up to 100% (performance-based, genuinely paid) 25 days holiday + bank hols Pension Principal SQL Developer – Trading Desk | SQL Server, C#/.NET, Concurrent SQL environment ...

Full Stack Engineer - AI

Hiring Organisation
Salt
Location
England, United Kingdom
operate at a high technical bar, shape architecture decisions, and build modern AI-enabled platforms properly. If you care about clean design, security, performance, and using AI responsibly to accelerate engineering — you’ll thrive here. What You’ll Be Doing Designing and building secure, scalable cloud-native applications Contributing … .NET/.NET Core) ASP.NET Core APIs Entity Framework Core & Dapper (and knowing when to use each) SOLID principles & clean architecture Asynchronous programming, concurrency & performance tuning TDD, unit testing & integration testing Code quality gates & peer review discipline Secure coding practices Frontend Engineering TypeScript React Next.js Modern frontend patterns ...

System Technical Support

Hiring Organisation
Geek+
Location
Warrington, England, United Kingdom
automated and intelligent supply chain globally. Responsibilities: Conduct in-depth troubleshooting and resolution of complex technical issues escalated from L1 support, including system anomalies, performance bottlenecks, and integration failures Prepare detailed technical case studies and solution documentation, and continuously improve the team knowledge base Collaborate on system upgrades, working … automation, WMS systems, or large-scale internet system support -Proficient in MySQL Database: Skilled in SQL optimization, transactions, locking mechanisms, with substantial experience in performance tuning and troubleshooting. Proficient in Linux OS: Familiar with Shell scripting, and adept at using various commands and tools for system diagnostics Solid ...

Developer/Application Support

Hiring Organisation
Ashdown Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
back end) version 11 onwards Understanding of data security and compliance, including ISO27001 or secure coding practices SQL Server development skills (stored procedures, triggers, performance tuning) Experience with SSRS reporting Exposure to IIS, HTML, CSS, or web-based systems ...

Application Support & Developer

Hiring Organisation
Ashdown Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
back end) version 11 onwards Understanding of data security and compliance, including ISO27001 or secure coding practices SQL Server development skills (stored procedures, triggers, performance tuning) Experience with SSRS reporting Exposure to IIS, HTML, CSS, or web-based systems ...

Cloud Architect

Hiring Organisation
Sonata Software
Location
London Area, United Kingdom
Cloud Migration Knowledge in CRM 2015+ build versions and upgrade experience Architectural experience for Dynamics CRM on premises A strong understanding of business application performance tuning which includes an understanding of SQL, IIS (Internet Information Services), Networking, and client-side troubleshooting. Environment health assessment experience This role ...

Cloud Solution Architect for Power Platform

Hiring Organisation
E-Solutions IT Services UK Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £85,000 per annum
Cloud Migration Knowledge in CRM 2015+ build versions and upgrade experience Architectural experience for Dynamics CRM on-premises A strong understanding of business application performance tuning which includes an understanding of SQL, IIS (Internet Information Services), Networking, and client-side troubleshooting. Environment health assessment experience This role ...

Commercial Analyst (m/f/d)

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
flows Drive efficiency through automation and AI-supported data transformation, validation, and anomaly detection Manage and optimise Power BI environments, including datasets, refresh processes, performance tuning, and access control Provide ongoing reporting support, resolving data issues and collaborating with stakeholders to enhance datasets and reporting capabilities Qualifications ...

Software Engineer (Cloud & Data Migration)

Hiring Organisation
Randstad Technologies Recruitment
Location
Manchester, United Kingdom
Employment Type
Contract
Contract Rate
£70 - £74/hour
cloud deployment using a modern, best-in-class stack. Key Requirements Java Mastery: 5+ years of experience (Java 17+ preferred) with a focus on performance tuning. Spring Ecosystem: Deep expertise in Spring Boot, Data, and Security. Cloud & DevOps: Strong AWS knowledge (ECS/Fargate, Lambda, RDS) and expert proficiency ...

Software Engineer (Cloud & Data Migration)

Hiring Organisation
Randstad Technologies
Location
Manchester, UK
Employment Type
Full-time
cloud deployment using a modern, best-in-class stack. Key Requirements Java Mastery: 5+ years of experience (Java 17+ preferred) with a focus on performance tuning. Spring Ecosystem: Deep expertise in Spring Boot, Data, and Security. Cloud & DevOps: Strong AWS knowledge (ECS/Fargate, Lambda, RDS) and expert proficiency ...

Azure

Hiring Organisation
Syntax Consultancy Ltd
Location
Leeds, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£525 - £550/day Inside IR35
Azure networking patterns , including Hub and Spoke, VWAN, VPN and firewall configurations. Advanced PostgreSQL administration skills in large production environments , including migrations, replication, and performance tuning. Expertise with Azure migration tools such as Azure Migrate and Azure Database Migration Service (DMS). Good understanding of CI/CD pipelines ...

Senior Oracle Cloud Technical Consultant

Hiring Organisation
Square One Resources
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
technical experience across ERP and/or HCM, or similar Oracle E-business Suite experience. Strong SQL and PL/SQL development skills, including performance tuning. Experience with Oracle Integration Cloud, Oracle SOA Suite or modern REST-based integration tools. Good understanding of Oracle SaaS data models, including Finance ...

ML Engineer

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
ingest, transform, and loaddata from various sources. AI model Feature Engineering: Integrate structured and unstructured data from internal and external systems intocentralized data platforms. Performance Tuning of AI/models: Optimize data workflows and queries for performance, scalability, andcost-efficiency. Building Agentic Systems: Developing intelligent AI agents … that can reason, plan, and execute tasksautonomously using LLMs and other tools. LLM application Development: LLM fine-tuning adapting pretrained LLMs for specific tasks using techniques likeparameterefficient fine-tuning (PEFT) (e.g., LoRA, QLoRA). Implementing Retrieval-Augmented Generationpipelines to enhance the knowledge and accuracy of LLMs. Utilizing vector ...

Machine Learning Engineer PyTorch LLM

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
influence Your role: As a Machine Learning Engineer you'll take open-source LLMs (code and general models) and turn them into high-performance software engineer agents using supervised fine tuning and large scale reinforcement learning. This isn't prompt engineering. You'll design and run serious training … work hands-on across the full stack: custom PyTorch dataloaders, distributed training (DDP/FSDP), experiment tracking, debugging NCCL issues at 2am, and squeezing performance out of multi-GPU jobs. You'll help design opinionated reward functions that reflect what great engineering actually looks like, not just benchmark scores. ...