26 to 50 of 632 Performance Optimisation Jobs in England

Database Administrator (AWS AURORA / POSTGRESQL)

Hiring Organisation
NSD
Location
South Croydon, London, United Kingdom
Employment Type
Contract
Contract Rate
Up to £525 per day
Public Sector. They are seeking an experienced Senior Database Administrator (DBA) to join a high-profile programme supporting the design, operation and optimisation of enterprise database platforms hosted within AWS. This is an excellent opportunity to join a highly skilled technical team, working on mission-critical services where resilience … performance and security are paramount. WHAT WILL THE SENIOR DATABASE ADMINISTRATOR BE DOING? As the Senior Database Administrator, you'll act as the technical lead for AWS-hosted database platforms, taking ownership of database architecture, resilience, performance optimisation and operational support. You'll work closely with Solution ...

Senior Software Engineer (Java)

Hiring Organisation
Liquidnet
Location
London, United Kingdom
Salary
£ 100 K
optimising mission‐critical trading services across multiple asset classes. Role Responsibilities Design and implement distributed, fault‐tolerant Java services for electronic trading environments Lead performance tuning, optimisation, and refactoring of low‐latency trading components Investigate and resolve production issues, ensuring system stability and high availability Collaborate with global … DevOps, and Product Mentor and guide engineers to improve technical capability and engineering standards Experience/Competences Essential Strong experience designing and building high‐performance, low‐latency Java services within electronic trading Strong experience with distributed messaging technologies (Solace/Kafka) and real‐time systems Strong experience designing ...

Database Administrator

Hiring Organisation
Uniting Ambition
Location
Kettering, Northamptonshire, United Kingdom
Employment Type
Permanent
Salary
£50000 - £65000/annum
role in both day-to-day database operations and longer-term platform improvements. This is a varied role offering a mix of BAU support, performance optimisation, upgrades, migrations, and infrastructure projects. You'll have the opportunity to influence database strategy while working with modern engineering and DevOps practices. … Responsibilities Administer and support PostgreSQL and Oracle databases, with a primary focus on PostgreSQL Monitor, troubleshoot and optimise database performance Design and maintain high availability, replication, backup and disaster recovery solutions Perform database upgrades, patching and lifecycle management activities Support database migration and platform modernisation initiatives Maintain database security ...

CRO Senior Specialist

Hiring Organisation
Canon
Location
London, United Kingdom
Salary
£ 50 K
Experimentation & Conversion Rate Optimisation (CRO) Senior Specialist, you will oversee the EMEA ITCG Digital CRO programme across all ITCG digital channels, including e-Commerce sites, brand websites, Amazon, mobile apps, email and paid media landing experiences. Your role involves fostering a culture of testing, implementing robust A/… managing CRO/experimentation programmes across multiple EMEA sites (can be either agency or client-side)Proficiency with both client and server-side experimentationProven optimisation across multiple channels- websites, apps, Amazon, emails and paid mediaStrong track record in managing CRO agencies and technology partnersDemonstrated ability to scale experimentation programmes ...

Senior Embedded Software Engineer

Hiring Organisation
Alten
Location
Crawley, West Sussex, United Kingdom
Salary
£ 70 K
embedded C++ software for real‐time communication and signal‐processing systems.Develop and support software for embedded communication modules, modems, and RF‐adjacent components.Conduct debugging, optimisation, and performance testing across embedded targets to ensure reliability under operational loads.Produce clear and traceable design specifications, requirements, and documentation aligned with regulated … C++11/14/17).Experience in embedded development for communications or signalling systems (modems, radios, data links, or similar).Familiarity with embedded debugging, performance optimisation, and hardware‐software interaction.Understanding of secure coding practices, configuration management, and development governance.Experience with requirements traceability, verification, and system‐level testing.Soft Skills ...

Databricks Lead Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Databricks-native ingestion approaches such as AutoLoader and/or Lakeflow Connect • Strong PySpark and SQL skills • Delta Lake experience, including MERGE, schema evolution, optimisation and performance tuning • Experience with Databricks Workflows and production pipeline orchestration • Strong understanding of CI/CD, testing, monitoring, alerting, incident triage … Vector Search, model serving or RAG pipelines • Lakeflow ingestion connectors • Row-level security, column masking and sensitive data handling through Unity Catalog • Databricks performance optimisation, including Photon, cluster sizing, partitioning and shuffle/skew mitigation • Cost optimisation and understanding of Databricks compute and DBU drivers This ...

Microsoft DevOps Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
environments in line with approved architecture and governance standards. Support Azure landing zones, networking, compute, storage, backup and disaster recovery services. Optimise cloud platform performance, resilience, capacity and cost. DevOps & Automation Design and maintain Azure DevOps CI/CD pipelines using reusable YAML templates. Automate infrastructure and application deployment … secrets management; vulnerability management; policy compliance; threat monitoring; ISO 27001 awareness. Observability & Operations Azure Monitor; Log Analytics; Application Insights; incident management; root cause analysis; performance optimisation; SRE principles. Ways of Working Agile and Scrum; stakeholder management; technical documentation; problem solving; knowledge sharing; vendor collaboration; continuous improvement. Experience & Qualifications ...

Lead Software Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than … platforms and digital capabilities that enable effective business operations and service delivery. The function plays a key role in modernising services, improving resilience and performance, and ensuring business teams have the technology and tools they need to operate efficiently. DAS works across business and technology teams to shape, deliver ...

Software Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
Southampton, Hampshire, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £50,000 per annum
excellent opportunity for a Software Engineer with strong C/C++ skills who enjoys working close to the hardware and solving challenging performance and optimisation problems. The Role You'll be responsible for developing, integrating and optimising the infrastructure software underpinning 5G NR Physical Layer (PHY) systems , with … particular focus on delivering real-time performance across embedded platforms. You'll work closely with software, hardware, architecture and system-test teams, contributing to the development of high-performance 5G technology. Key Responsibilities Develop software used to run and test 5G NR PHY algorithms Develop and optimise platform ...

Principal Software Engineer - Platform Engineering - Accelerator Business

Hiring Organisation
JP Morgan Chase
Location
London, United Kingdom
Salary
£ 100 K
improvement.Drive architectural standards and best practices across the organisation, leading technical evaluations with internal and external partners.Champion FinOps principles to drive significant cloud cost optimisation and guide performance tuning of distributed systems.Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment … application resiliency, and secure delivery (e.g., SLSA framework and GitOps).Deep experience with Observability and Monitoring tools (e.g., Prometheus, Grafana, OTEL).Expertise in performance optimisation of distributed systems (e.g., caching, network latency).Practical experience with Service Mesh technologies (e.g., Istio, Linkerd, Cillium).Demonstrated success in Mentorship and Coaching ...

Principal Software Engineer - Platform Engineering - Accelerator Business

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
architectural standards and best practices across the organisation, leading technical evaluations with internal and external partners. Champion FinOps principles to drive significant cloud cost optimisation and guide performance tuning of distributed systems. Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment … resiliency, and secure delivery (e.g., SLSA framework and GitOps). Deep experience with Observability and Monitoring tools (e.g., Prometheus, Grafana, OTEL). Expertise in performance optimisation of distributed systems (e.g., caching, network latency). Practical experience with Service Mesh technologies (e.g., Istio, Linkerd, Cilium). Demonstrated success ...

Principal Software Engineer - Platform Engineering - Accelerator Business

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
architectural standards and best practices across the organisation, leading technical evaluations with internal and external partners. Champion FinOps principles to drive significant cloud cost optimisation and guide performance tuning of distributed systems. Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment … resiliency, and secure delivery (e.g., SLSA framework and GitOps). Deep experience with Observability and Monitoring tools (e.g., Prometheus, Grafana, OTEL). Expertise in performance optimisation of distributed systems (e.g., caching, network latency). Practical experience with Service Mesh technologies (e.g., Istio, Linkerd, Cilium). Demonstrated success ...

Principal Software Engineer - Platform Engineering - Accelerator Business

Hiring Organisation
17918
Location
London, United Kingdom
architectural standards and best practices across the organisation, leading technical evaluations with internal and external partners. Champion FinOps principles to drive significant cloud cost optimisation and guide performance tuning of distributed systems. Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment … resiliency, and secure delivery (e.g., SLSA framework and GitOps). Deep experience with Observability and Monitoring tools (e.g., Prometheus, Grafana, OTEL). Expertise in performance optimisation of distributed systems (e.g., caching, network latency). Practical experience with Service Mesh technologies (e.g., Istio, Linkerd, Cillium). Demonstrated success ...

Principal Software Engineer - Platform Engineering - Accelerator Business

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
architectural standards and best practices across the organisation, leading technical evaluations with internal and external partners. Champion FinOps principles to drive significant cloud cost optimisation and guide performance tuning of distributed systems. Architects and governs agentic AI-enabled engineering workflows (using enterprise-authorized tools within the work environment … resiliency, and secure delivery (e.g., SLSA framework and GitOps). Deep experience with Observability and Monitoring tools (e.g., Prometheus, Grafana, OTEL). Expertise in performance optimisation of distributed systems (e.g., caching, network latency). Practical experience with Service Mesh technologies (e.g., Istio, Linkerd, Cillium). Demonstrated success ...

Software Engineer – High-Performance Computing (HPC) / Quant Technology

Hiring Organisation
IT Graduate Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £80,000 per annum
Software Engineer – High-Performance Computing (HPC)/Quant Technology Location: London – Hybrid Type: Permanent, Full-time The opportunity We’re working with a highly specialised technology business that solves some of the most technically demanding problems in high-performance computing, quantitative technology and large-scale software systems . … Their engineers work on complex compute-intensive applications used within financial services and other performance-critical environments, covering areas such as large-scale numerical workloads, risk analytics, simulation, CPU/GPU computing and low-latency systems . They are now looking for a talented Software Engineer with an interest ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£120000 - £150000/annum
direction of the systems they build. You will work on a combination of greenfield development and the continuous improvement of established platforms, building high-performance, reliable and scalable applications that directly support real-world trading strategies and quantitative research. As a senior member of the engineering team, you will … have the opportunity to influence technical architecture, development standards, performance optimisation and engineering best practices, while working closely with researchers, traders and other technical specialists. Key Responsibilities Design, develop and maintain high-performance applications using C# and modern .NET Take ownership of significant software development projects from ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £150,000 per annum
direction of the systems they build. You will work on a combination of greenfield development and the continuous improvement of established platforms, building high-performance, reliable and scalable applications that directly support real-world trading strategies and quantitative research. As a senior member of the engineering team, you will … have the opportunity to influence technical architecture, development standards, performance optimisation and engineering best practices, while working closely with researchers, traders and other technical specialists. Key Responsibilities Design, develop and maintain high-performance applications using C# and modern .NET Take ownership of significant software development projects from ...

Senior AI Platform Engineer

Hiring Organisation
IQVIA
Location
London, United Kingdom
Salary
£ 80 K
planning and execution of LLM initiatives and translating research requirements into scalable engineering solutions.Partner with centralised infrastructure teams to design and deliver high-performance compute environments across AWS and on-premises platforms, including GPU infrastructure, Slurm clusters, and migration from ad hoc research workflows.Optimise LLM training and inference workloads … supporting research and product teams in maximising performance, scalability, and reliability across the infrastructure stack.Establish and maintain model and data lifecycle capabilities, including dataset versioning, lineage tracking, reproducibility standards, and integration with model registries.Lead the evolution of knowledge graph infrastructure, driving technology selection, migration strategies, performance optimisation ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£499 - £500/day
tools (Kibana, Splunk, or CloudWatch). Background in large-scale enterprise application development or client-facing consulting. Familiarity with secure coding standards and application performance optimization. Who You Are You are a proactive problem-solver who cares deeply about code quality, continuous improvement, and software design. You thrive ...

CRM Manager

Hiring Organisation
Pandora
Location
London, United Kingdom
Salary
£ 80 K
delivery of Pandora's customer engagement strategy across the UK & Ireland. Through use of customer insight, segmentation and personalisation, the CRM Specialist will drive performance across Email and SMS channels to maximise customer lifetime value, engagement and retention. The successful candidate will identify growth opportunities, translating data into actionable … recommendations, and continuously enhancing channel performance through testing and optimisation. They will work cross-functionally to deliver relevant, customer-centric communications to ensure CRM channels successfully contribute to wider commercial and brand objectives. About Pandora Pandora is the world's largest jewellery brand, specialising in the design, crafting ...

Mechanical Design Engineer (Cooling Systems / Manufacturing)

Hiring Organisation
Ernest Gordon Recruitment
Location
Watford, Hertfordshire, South East, United Kingdom
Employment Type
Permanent
Salary
£55,000
cooling and Rear Door Heat Exchanger Systems for data centre applications Produce technical drawings and models using CAD and Revit Carry out thermal modelling, performance analysis, and system optimisation Mentor junior engineers and provide technical leadership across engineering projects Monday to Friday, 9 - 5:30 The Person Degree … Heat Exchangers, Fluid Distribution, Pipework Design, Piping Layout, Hydraulic Design, Hydraulic Systems, Fluid Mechanics, Thermodynamics, Heat Transfer, Thermal Analysis, Thermal Modelling, Airflow Management, Thermal Optimisation, High Density Cooling, Direct-to-Chip Cooling, Immersion Cooling, Rack Cooling, Rack Integration, Mechanical Design, Product Development, New Product Development, Engineering Design, Engineering Drawings ...

Lead Developer

Hiring Organisation
London Stock Exchange Group
Location
London, United Kingdom
Salary
£ 80 K
internal platforms and client facing products. You will work with innovative technologies, contribute to complex algorithmic design, and drive engineering excellence in a high performance, data intensive environment. Key Responsibilities Core Engineering & Platform Delivery Design, develop, and maintain complex Java and Python applications using modern engineering practices. Build/… embed AI powered features into mission critical systems. Architect and enhance services that support large scale, performance critical index computations. Collaborate with Product Managers, UX, and engineering teams globally to deliver high quality products. Lead projects end-to-end through requirements, design, development, testing, deployment, and operations. Build ...

Senior RF Engineer (Tunnels)

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
Overview Senior RF Engineer role supporting the design, deployment and optimisation of wireless mobile solutions across the HS2 project. Lead the cellular RF design of trackside macro cell sites serving millions of passengers each year and work within a multi-discipline design team to meet customer needs. What … component selection to minimise losses and maintain system quality, minimising factors such as PIM. Review results, drawings and reports produced by others; lead optimisation activities to manage interference and maximise system performance. Develop design criteria/requirements, system dimensioning, link budget and traffic analysis. Create low-level designs including ...

Principal Java Engineer

Hiring Organisation
Jobleads-UK
Location
Wallingford, England, United Kingdom
architecture and technical direction across multiple products and services. Design, implement and review high-quality Java and full-stack solutions, APIs and integrations. Lead performance optimisation, scalability and resilience initiatives. Drive security best practices, vulnerability remediation and secure software development lifecycle (SDLC) practices. Work closely with Data, Operations … complex production issues. Drive improvements in system observability, monitoring and operational performance. Ensure applications are designed and operated to meet reliability, availability and performance targets. Partner with Operations, DevOps and QA teams to maintain production stability and service quality. Embed a culture of operational excellence, continuous improvement and proactive ...

Senior Manager - Principal AI Engineer

Hiring Organisation
KPMG
Location
London, United Kingdom
Salary
£ 120 K
automation, testing, and observability across pipelines.· Operational Excellence: Define reusable development patterns, enforce coding standards, and promote MLOps best practices that support version control, performance optimisation, and maintainability.· Cross-Disciplinary Collaboration: Partner closely with data scientists, product managers, platform engineers, and QA teams to align on technical requirements ...