51 to 75 of 88 Performance Tuning Jobs in London

L3 Storage & Backup Engineer, Associate Manager

Hiring Organisation
Accenture
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
partnering with scaled UK AI compute pioneers to lead the charge on next-generation infrastructure. To support this endeavour, we’re building a high-performance compute operations team in London. Our work will be sensitive, secure and on the most up-to-date high density compute stacks available. … Develop and implement robust backup policies, retention schedules, and disaster recovery plans, ensuring minimal data loss and rapid restoration capabilities. •Conduct regular system audits, performance tuning, and capacity planning to optimize storage availability and scalability. •Monitor and manage NOC (Network Operations Centre) operations related to storage and backup ...

Full Stack Developer

Hiring Organisation
Rise Technical Recruitment Limited
Location
North London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
hosted systems. You'll work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services, and be involved in deployments, performance tuning, and continuous improvement of backend architecture and development processes.The ideal candidate will have strong commercial experience in full stack development with solid … systems and APIs alongside engineering teams* Build secure, scalable, and maintainable services using C# and ASP.NET Core* Optimise SQL Server queries, stored procedures, and performance* Manage AWS deployments and cloud configurations* Analyse existing systems and implement robust solutions* Contribute to continuous improvement of tools, processes, and codebase standards ...

Full Stack Developer

Hiring Organisation
Rise Technical Recruitment
Location
Camden, London, Camden Town, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
hosted systems. You'll work with technologies such as C#, ASP.NET Core, RESTful APIs, SQL Server, and AWS services, and be involved in deployments, performance tuning, and continuous improvement of backend architecture and development processes. The ideal candidate will have strong commercial experience in full stack development with … systems and APIs alongside engineering teams * Build secure, scalable, and maintainable services using C# and ASP.NET Core * Optimise SQL Server queries, stored procedures, and performance * Manage AWS deployments and cloud configurations * Analyse existing systems and implement robust solutions * Contribute to continuous improvement of tools, processes, and codebase standards ...

Data Engineer

Hiring Organisation
KnoWho
Location
London, England, United Kingdom
data processing and pipeline development. Solid experience with SQL , including writing efficient and scalable queries. Hands-on experience with Google BigQuery , including architecture, performance tuning, and cost optimization. Familiarity with cloud-based data tools and modern data ecosystems. Understanding of data modeling, warehousing concepts, and best practices Nice ...

Senior Software Developer

Hiring Organisation
LUMORA SOLUTIONS
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £85,000 per annum
debugging and secure development Experience working in complex or regulated environments is a plus What you’ll be doing: Designing and delivering scalable, high-performance backend features Working across the full SDLC, from design through deployment and optimisation Integrating systems with financial, transactional and market data APIs Supporting database … schema design, performance tuning and automation Why join: Build mission-critical software used by global organisations High ownership and real technical impact Supportive, collaborative engineering culture Clear long-term product vision and growth If you're interested in a short confidential chat, please get in contact, even ...

Azure Architect Linux

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550 per day
potential). This is a unique opportunity to own the end-to-end solutioning-from initial assessment to high-level design and hands-on performance tuning. The Role As the Technical Lead for a team of 5+ engineers, you will drive the strategy and delivery of Azure Landing Zones … architectural roadmaps. Migration Excellence: Leading On-prem to Cloud transitions using Azure Migrate . Linux Mastery: Deep-dive troubleshooting of networking, clusters, and kernel tuning (RHEL/CentOS focus). Security & Governance: Managing Azure Key Vault, IAM, and high-security UNIX environments. What You'll Bring Experience: 12+ years ...

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will build and optimise ultra-low latency, high … throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop scalable infrastructure Work across the full software lifecycle ...

SQL DBA - Local Authority Exp

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 per day
into technical troubleshooting, and can work confidently across SQL Server, scripting, and SSIS packages. Key Responsibilities Diagnose and resolve complex SQL Server issues including performance bottlenecks, blocking, query inefficiencies, and job failures Develop, review, and troubleshoot T-SQL scripts, stored procedures, indexes, and SQL Jobs Maintain and support SSIS … recovery models, and environment health monitoring Support patching, upgrades, and production deployments Work closely with application teams to analyse issues and implement fixes or performance improvements Ensure all database activities adhere to council security and compliance standards Provide clear documentation, runbooks, and knowledge transfer as needed Essential Skills & Experience ...

Mainframe Modernization - IBM DataPower Engineer

Hiring Organisation
DCV Technologies
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£575 - £625/day - Inside IR35
urgently looking for an IBM DataPower Engineer with mainframe Modernization experience. The successful candidate will be responsible for designing and implementing secure, high-performance integration solutions using IBM DataPower Gateway to expose mainframe services (CICS, IMS, DB2, MQ) as modern APIs (REST/JSON, SOAP). Enable legacy … XSLT/GatewayScript transformations and schema validations. Automate deployments via SOMA/REST APIs, CI/CD tools (Jenkins, Ansible). Ensure high availability, performance tuning, and compliance (PCI DSS, GDPR). Essential skills/knowledge/experience: Strong experience in IBM DataPower Gateway configuration and troubleshooting. Knowledge ...

Infrastructure Engineer

Hiring Organisation
VIQU IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
manage the global database and web platform estate, including SQL Server, SharePoint, Web, Azure Cloud Services, SSO and Identity Management• Ensure platform architecture, resilience, performance and security meet agreed service level targets• Lead and deliver platform upgrades, deployments and code releases in line with formal change processes• Carry … experience in a senior or lead-level role supporting enterprise database and web platforms• Strong hands-on experience with Microsoft SQL Server, including administration, performance tuning and HA/DR• Experience supporting SharePoint (on-prem and/or online) and web hosting platforms• Experience working with Azure Cloud ...

Data Engineer - Inside IR35 - Remote

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
transformation-heavy pipelines covering data profiling, cleansing, standardisation, conformance, and publishing Advanced SQL skills for data profiling, joins and merges, deduplication, anomaly detection, and performance tuning Strong scripting capability in Python for automation, parsing, rules engines, and data quality checks, with an emphasis on writing maintainable, well-structured ...

Adobe AEM Implementation Consultant

Hiring Organisation
ClearCourse
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
component libraries Migrate and restructure content while protecting URLs, redirects and SEO value Integrate AEM with Adobe Assets, Analytics, Target and Journey Optimizer Configure performance, caching and page load optimisation across sites Ensure governance, consistency and best-practice implementation Resolve technical build, integration and performance issues Work closely … component configuration Strong background in large-scale content migration and content modelling Experience integrating AEM with Adobe Experience Cloud products Strong understanding of performance tuning, caching and Core Web Vitals Solid technical SEO knowledge within AEM Experience working within governed enterprise AEM environments Confident communicator able to work ...

Adobe AEM Implementation Consultant

Hiring Organisation
ClearCourse
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
Salary negotiable
component libraries Migrate and restructure content while protecting URLs, redirects and SEO value Integrate AEM with Adobe Assets, Analytics, Target and Journey Optimizer Configure performance, caching and page load optimisation across sites Ensure governance, consistency and best-practice implementation Resolve technical build, integration and performance issues Work closely … component configuration Strong background in large-scale content migration and content modelling Experience integrating AEM with Adobe Experience Cloud products Strong understanding of performance tuning, caching and Core Web Vitals Solid technical SEO knowledge within AEM Experience working within governed enterprise AEM environments Confident communicator able to work ...

Data Engineer

Hiring Organisation
DCV Technologies Limited
Location
London, United Kingdom
Employment Type
Contract, Work From Home
contract role, ideal for specialists in secure API integration and legacy-to-digital transformation. The Role Youll design, build and support high-performance integration solutions using IBM DataPower Gateway, exposing core mainframe services as modern APIs. Working across hybrid environments, youll bridge z/OS applications with API platforms … backend platforms including MQ, Kafka and relational databases Support CI/CD automation using SOMA/REST APIs, Jenkins or Ansible Ensure high availability, performance tuning and regulatory compliance (e.g. PCI, GDPR) Required Skills Strong hands-on experience with IBM DataPower Gateway Proven mainframe integration experience (CICS ...

Mainframe Modernization - IBM DataPower Engineer

Hiring Organisation
DCV Technologies Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
months contract position Role description: As a IBM DataPower engineer with mainframe Modernization experience , you will be responsible for designing and implementing secure, high-performance integration solutions using IBM DataPower Gateway to expose mainframe services (CICS, IMS, DB2, MQ) as modern APIs (REST/JSON, SOAP). Enable legacy … XSLT/GatewayScript transformations and schema validations. Automate deployments via SOMA/REST APIs, CI/CD tools (Jenkins, Ansible). Ensure high availability, performance tuning, and compliance (PCI DSS, GDPR). Your Profile Essential skills/knowledge/experience: (Up to 10, Avoid repetition) Strong experience ...

Reliability Engineer

Hiring Organisation
City Elite Transaction Services Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £130,000 per annum
services background preferred The Role: Administer Solace appliances/brokers (on-prem & cloud) Production support, incident response, root cause analysis System monitoring, capacity planning, performance tuning WAN optimization for low-latency messaging Automation and documentation ...

Infrastructure & Application Engineer

Hiring Organisation
Nextech
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
moving change environments. What You'll Do Lead and support application migrations to modern platforms (cloud & on-prem) Own application lifecycle - deployment, configuration, upgrades & performance tuning Troubleshoot complex issues across servers, networks, databases & integrations Enhance monitoring, automation and resilience across core services Collaborate with vendors and internal teams ...

Lead AI engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
hands-on with design decisions, code reviews and best practices. Working closely with product and design to turn ideas into real solutions. Evaluating LLM performance, tuning prompts and improving model safety. Helping shape the company's GenAI and agentic AI strategy. Benefits Salary up to £110,000 Hybrid ...

Data Engineer

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £450 per day
instances Expertise in data-transformation-heavy pipelines : profiling, cleansing, standardisation, conformance, and publishing Advanced SQL , including profiling, joins/merges, deduplication, anomaly detection, and performance tuning Python scripting for automation, parsing, rules engines, anddata-quality checks; ability to write maintainable code Experience with Python packages such as Pandas ...

Founding Embedded Software Engineer

Hiring Organisation
Sekkari
Location
City of London, London, United Kingdom
Integration: Port and optimize real-time operating systems (RTOS) or Linux kernels to run on our custom electronic architecture. Driver Development: Write high-performance drivers for custom memory controllers, interfacing the electronic L2/L3 caches with the optical domain. Hardware Abstraction: Develop the HAL (Hardware Abstraction Layer) that … allows high-level autonomous software to leverage our chip’s unique electro-optical speed. Performance Tuning: Work with the IC design team to profile and eliminate bottlenecks between the software execution and the hardware logic. Bootloader & Security: Design secure boot sequences and firmware update mechanisms for edge deployment ...

AI Engineer - Contract

Hiring Organisation
VIQU IT Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - 650 per day
Python Develop and optimise data pipelines and model training workflows Collaborate with cross-functional teams to translate requirements into technical solutions Support model evaluation, performance tuning, and monitoring in production Contribute to best practices around code quality, testing, and scalability Required Experience: Proven experience as an AI Engineer ...

Senior Full Stack Engineer

Hiring Organisation
Searchland
Location
London, England, United Kingdom
APIs with tRPC running on Node.js/Express Model and query relational and search-optimized data using PostgreSQL and Elasticsearch Contribute to backend architecture, performance tuning, and refactoring work Collaborate with technical and non-technical teammates to clarify requirements and break down work Own implementation from development through ...

Research Engineer (Robotics - Model Training)

Hiring Organisation
Axiōma Search
Location
London Area, United Kingdom
memory movement, and GPU utilisation across complex training loops What you'll need Extensive experience in ML infrastructure, distributed systems, and/or high-performance computing Direct experience training large vision-language or multimodal foundation models Strong background in large-scale distributed training and GPU performance tuning ...

Lead PySpark Engineer - Data, SAS, AWS

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £380 per day
ready PySpark code. Strong understanding of data and data warehousing concepts, including: ETL/ELT, Data models, Dimensions and facts, Data marts, SCDs Spark Performance & Optimisation Strong knowledge of Spark execution concepts, including partitioning, optimisation, and performance tuning. Experience troubleshooting and improving distributed data processing pipelines. Python & Engineering ...

Desktop Support Technician

Hiring Organisation
Randstad Technologies Recruitment
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Contract
Contract Rate
£200 - £201/day
problems in computer systems and provide technical solutions with a goal of 90% First Call Resolution. Troubleshooting: Expertly troubleshoot OS issues (BSOD, App Crashing, Performance tuning), VPN connectivity, and networking basics. Incident Lifecycle: Take ownership of employee issues from start to finish. If escalation is required, monitor ...