51 to 75 of 241 Performance Optimisation Jobs in London

BI Architect

Hiring Organisation
Michael Page Technology
Location
London, South East, England, United Kingdom
Employment Type
Temporary
Salary
£700 - £800 per day
support enterprise reporting Support integration of data from multiple SaaS and third-party systems Ensure best practices across data quality, governance, metadata, and performance optimisation Maintain documentation including data models, data dictionaries, and architecture diagrams Assist with CI/CD pipelines and deployment processes (Azure DevOps) Profile Proven ...

Senior Technical Lead

Hiring Organisation
InstaResource Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Core Technical Skills: .NET/C# JavaScript/TypeScript React or Next.js RESTful APIs GraphQL CI/CD pipelines (Azure DevOps or GitHub Actions) Performance optimisation WCAG 2.1 accessibility standards SEO best practices Agile/Scrum delivery experience. Desirable: Sitecore MVP. Active participation in the Sitecore community. Professional ...

Senior Vice President, Senior Software Engineering, Developer Experience

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Build/Release Engineering. Experience with artifact repositories (e.g., Artifactory, Nexus) and secure software supply chain practices. Knowledge of observability systems, telemetry frameworks, and performance optimization for build pipelines. Exposure to AI/ML‐driven build acceleration and failure prediction tooling. **NOTE:** This line seems malformed; correct closing ...

Python Engineer Data Domains

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
products built for: analytics forecasting feature engineering customer behavior insights integration of new data sources Data Transformation & Governance Lead best practices in: data modelling performance optimization governance consistent reliable readily available Platform & Tooling Build reusable tooling and frameworks that enable teams to: ingest data store data transform data serve ...

Senior Lead Software Engineer - React Native

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Hooks End to end testing applications with Detox/Appium/WebdriverIO/Playwright Extensive experience in modern web development, including responsive design and performance optimization Hands-on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications Preferred qualifications, capabilities and skills ...

Senior AI Engineer - Perm UK

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
workflows. Architect cloud-native backend systems and distributed AI services. Collaborate closely with Data Scientists to productionise Machine Learning and NLP models. Develop high-performance RESTful APIs and microservices for AI model serving. Drive system reliability, monitoring, observability and performance optimisation. Champion engineering best practices including CI/ ...

SQL Server DBA / Data Engineer

Hiring Organisation
Noir
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £85,000 per annum
Azure, GCP, SQL Server DBA/Data Engineer) Founded in 2010, our client is a rapidly growing software company focused on delivering high-performance data solutions for enterprise clients. With a strong presence across the U.S. and Europe, they're now scaling their operations in the UK to support … their expansion, they are looking for a talented SQL/Data Engineer. In particular, they are looking to move into the field of high-performance data analytics. contribute to the ongoing development and performance optimisation of their mission-critical data platforms. Our client is looking for passionate ...

Senior Software Developer

Hiring Organisation
Spectrum It Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ecosystem, developing high-performance, reliable, and maintainable applications. … Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems Mentor junior ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ecosystem, developing high-performance, reliable, and maintainable applications. … Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems Mentor junior ...

Software Development Engineer III

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
based tools. Technical Excellence: Promote strong software engineering practices across backend and frontend development, including CI/CD, testing, secure by default development, performance optimisation and observability. Technical Leadership: Provide hands‐on technical leadership through design reviews, mentoring and knowledge sharing, helping raise engineering standards across the team. … modern JavaScript/TypeScript, with experience building and maintaining production web interfaces. Proficiency with HTML and CSS, and an understanding of usability, accessibility and performance considerations. Experience working across data, backend and UI layers, collaborating with others rather than owning every layer in isolation. Ability to make thoughtful technical ...

Senior Data Engineer | Heathrow, London

Hiring Organisation
Gazelle Global Consulting Ltd
Location
Hounslow, London, United Kingdom
Employment Type
Contract
skills: Snowflake, Teradata & Informatica Python & SQL AWS, Airflow & DBT GitHub & CI/CD ETL & Data Warehousing Control-M, Unix/Linux Data Modelling & Performance Optimisation You'll design and optimise scalable data pipelines, modernise legacy ETL solutions, improve data quality, and collaborate with architects and engineering teams ...

Full Stack Engineer

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
native applications on AWS and Kubernetes while supporting automated CI/CD pipelines. Technical Leadership: Mentor junior engineers, enforce clean code standards, and drive performance optimizations. Domain Alignment: Apply investment banking and risk management knowledge to translate business requirements into technical solutions. Technical Requirements Backend: Core Java, Kotlin, Multithreading ...

Full Stack Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
native applications on AWS and Kubernetes while supporting automated CI/CD pipelines. Technical Leadership: Mentor junior engineers, enforce clean code standards, and drive performance optimizations. Domain Alignment: Apply investment banking and risk management knowledge to translate business requirements into technical solutions. Technical Requirements Backend: Core Java, Kotlin, Multithreading ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
native applications on AWS and Kubernetes while supporting automated CI/CD pipelines. Technical Leadership: Mentor junior engineers, enforce clean code standards, and drive performance optimizations. Domain Alignment: Apply investment banking and risk management knowledge to translate business requirements into technical solutions. Technical Requirements Backend: Core Java, Kotlin, Multithreading ...

Lead Data Engineer

Hiring Organisation
Hexwired Recruitment Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £115000/annum
Familiarity with technologies such as Apache Spark, Airflow, Kafka, Elasticsearch/OpenSearch, Pandas and Polars . Strong understanding of data modelling, storage architecture and performance optimisation. Desirable Experience working on AI or Machine Learning platforms. Knowledge of cloud platforms (AWS, Azure or GCP). JavaScript/Node.js experience. Event ...

Senior Lead Software Engineer - React Native

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Hooks End to end testing applications with Detox/Appium/WebdriverIO/Playwright Extensive experience in modern web development, including responsive design and performance optimization Hands‐on experience with design systems, component libraries, and implementing consistent UI/UX across large-scale applications Preferred qualifications Formal training ...

SQL Engineer/Data Migration Consultant

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
datasets. Ability to navigate complex database schemas and understand data relationships. Experience writing and optimising complex joins. Understanding of database indexing strategies and query performance optimisation. Experience interrogating large volumes of data to identify issues and uncover insights. Strong understanding of data validation and reconciliation techniques. Python Experience using ...

Linux Systems Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
solutions set the standard a decade ago. Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. System & Security Engineering: Work with Linux distributions, kernel-level components, and networking functionality, applying modern security principles to harden systems against evolving … STEM discipline. Strong problem-solving ability with an innovative and independent mindset. Effective communication and teamwork skills. C programming skills for low-level or performance-critical development. Experience with containerisation (Docker, Kubernetes). Familiarity with endpoint security, intrusion detection, or system hardening. Contributions to Linux or open-source projects. ...

Linux Systems Engineer

Hiring Organisation
Becrypt
Location
London, United Kingdom
Employment Type
Permanent
standard a decade ago. Principle duties: Linux OS Development: Design, develop, and maintain Linux-based operating systems with a strong emphasis on security, performance, and reliability. System & Security Engineering: Work with Linux distributions, kernel-level components, and networking functionality, applying modern security principles to harden systems against evolving threats. … discipline. Strong problem-solving ability with an innovative and independent mindset. Effective communication and teamwork skills. Desirable C programming skills for low-level or performance-critical development. Experience with containerisation (Docker, Kubernetes). Familiarity with endpoint security, intrusion detection, or system hardening. Contributions to Linux or open-source projects. ...

Azure Infrastructure and Platform Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
telemetry, debug straightforward defects, and work closely with development teams to resolve platform and application concerns. Operational Improvement: Identify opportunities to improve reliability, performance, monitoring, automation, documentation, and operational processes. On-Call Availability: Participate in a paid on-call and out-of-hours support rota to maintain service availability … governance. Strong working knowledge of Azure PaaS services including App Services, Functions, Logic Apps, Storage Accounts, and Azure databases, including configuration, scaling, resilience, and performance optimisation. Experience with Azure Monitor, Application Insights, Log Analytics, alerting, dashboards, and KQL-based troubleshooting. Strong understanding of SQL Server and Azure SQL, with ...

Senior Java Low Latency Developer Electronic Trading

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Permanent
alongside experienced engineers developing the next generation of low latency electronic trading systems supporting global markets. If you enjoy solving complex engineering problems where performance, reliability and speed matter, this is the type of environment you'll thrive in. The Opportunity You'll become part of a highly experienced … electronic trading platforms across multiple asset classes. Working closely with traders, quantitative teams and business stakeholders, you'll build software that directly impacts trading performance and execution quality. Projects include: Designing and building low latency Java applications Developing electronic trading and execution platforms Building pricing and market data infrastructure ...

Salesforce Lead Architect

Hiring Organisation
Jobleads-UK
Location
Hounslow, England, United Kingdom
security, resiliency and observability while aligning patterns, tooling and shared services across platforms and teams. Provide deep technical leadership across Apex, LWC, data, security, performance and DevOps, assuring solution quality, challenging designs and driving continuous improvement through architectural best practices and technical debt reduction. Qualifications Proven Salesforce Architect with … experience, designing and governing complex system interfaces, integration patterns and cross-platform solutions. Hands‐on knowledge of Salesforce platform architecture, including data modelling, security, performance optimisation, Apex, LWC, Flows and configuration best practices. Experienced in DevOps, CI/CD and SDLC governance, with strong stakeholder management, communication ...

NLP Performance Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
apply large language models (LLMs) and other Natural Language Processing (NLP) techniques across the firm. We are looking for an exceptional NLP Performance Engineer to join our NLP Engineering team and take ownership of large-scale LLM inference performance. This is a specialist Quantitative Developer role. Like … Quantitative Developers, you will work alongside researchers to bring their ideas to life, with a particular focus on maximising the performance of LLMs. This is a hands‐on, high‐impact role. You will design and implement techniques that improve the performance, cost‐efficiency and capabilities of inference workloads ...

Head of Digital

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Pakistan and the Middle Key Responsibilities The successful candidate will establish a data-driven culture across Marketing, creating actionable insight that improves digital performance, supports supplier investment and delivers measurable revenue growth. A key part of the role is transforming how Bestway uses customer and trading data to make … Strategy aligned to business growth ambitions. Define and deliver the digital roadmap across websites, apps and future digital platforms. Commercial Leadership Lead the commercial performance of transactional B2B websites, digital channel and product performance Customer Journey & Experience Own the end-to-end customer experience across every digital touchpoint. ...

Guidewire Solution Architect

Hiring Organisation
Jobleads-UK
Location
City of Westminster, England, United Kingdom
Provide technical leadership to development, configuration, integration, and data teams, including mentoring, design reviews, code reviews, and architecture assurance. Drive non‐functional excellence across performance, security, scalability, resilience, availability, and operational readiness. Facilitate solution workshops, design discussions, architecture reviews, and stakeholder presentations. Present solution options, risks, trade‐offs … integration patterns. Experience with Guidewire Cloud and/or cloud platforms such as AWS or Azure. Good understanding of CI/CD, DevOps practices, performance optimisation, security architecture, SQL, data modelling, ETL, and data migration. Ability to operate effectively across technical and business audiences, translating complex architecture concepts ...