101 to 125 of 374 Performance Optimisation Jobs in London

AWS Bedrock, SageMaker, or GCP Vertex AI to deliver scalable cloud-based systems. Implementing strong MLOps and LLMOps practices - from CI/CD and model monitoring to cost and performance optimisation. Partnering with Data Engineers to ensure the pipelines and data structures feeding the models are robust and scalable. Keeping an eye on what's next - new GenAI frameworks More ❯

processes, including data warehouse and cloud infrastructure. Experience with multi-dimensional design, star schemas, facts and dimensions. Experience and demonstrated competencies in ETL development techniques. Experience in data warehouse performance optimization. Experience on projects across a variety of industry sectors an advantage, Comprehensive understanding of data management best practices including demonstrated experience with data profiling, sourcing, and cleansing routines More ❯

processes, including data warehouse and cloud infrastructure. Experience with multi-dimensional design, star schemas, facts and dimensions. Experience and demonstrated competencies in ETL development techniques. Experience in data warehouse performance optimization. Experience on projects across a variety of industry sectors an advantage, Comprehensive understanding of data management best practices including demonstrated experience with data profiling, sourcing, and cleansing routines More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

will lead a team of skilled network engineers, define the enterprise networking roadmap, and collaborate with cross-functional teams — including Security, Infrastructure, and IT Operations — to deliver a high-performance, high-availability network platform that underpins mission-critical business and customer operations. Key Responsibilities Strategic Leadership Define and execute the strategic vision for enterprise and customer network infrastructure across … scalability across the enterprise. Lead continuous improvement initiatives, driving innovation, automation, and standardisation in network design and operations. Architecture, Design & Delivery Oversee the end-to-end design, implementation, and optimisation of LAN, WAN, SD-WAN, VPN, and wireless solutions across all environments. Manage enterprise routing, switching, VLAN segmentation, firewall policies, telephony systems (ISDN/SIP) , and internal/external … internet access. Ensure network resilience through robust backup, redundancy, and disaster recovery mechanisms. Lead network capacity planning, performance optimisation, and technology refresh cycles . Own the full lifecycle of network-related projects , from requirements gathering through to procurement, budgeting, vendor management , and security assessments . Security, Compliance & Governance Partner with Information Security teams to enhance network security posture More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 1–3 years’ professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures … and performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 1–3 years’ professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures … and performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 1–3 years’ professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures … and performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

Collaborate with quants and traders to test and deploy new ideas Build and maintain robust, scalable codebases for live and simulated trading Contribute to continuous improvement across data quality, performance, and reliability Requirements 1–3 years’ professional software development experience (Python preferred) Experience building or maintaining back-testing systems , APIs, or data tools Strong understanding of algorithms, data structures … and performance optimisation Analytical mindset with interest in systematic trading and quantitative research Nice to Have Exposure to trading systems, market data, or algo/bot development Familiarity with numerical libraries (NumPy, Pandas, Numba, etc.) Understanding of version control, CI/CD, or distributed computing More ❯

and new ideas. What You Bring ⚡ SDR Experience 1+ years quota-carrying SDR experience (SaaS, martech, or agency services) with ambition to progress to AE within a year. 📈 Research & Optimisation Mindset Obsess over prospecting, performance optimisation, and leveraging AI + data to smash targets. 🔎 List-Building Strength Skilled at identifying ICPs, budget owners, and decision-makers. ✍️ Communication More ❯

and new ideas. What You Bring ⚡ SDR Experience 1+ years quota-carrying SDR experience (SaaS, martech, or agency services) with ambition to progress to AE within a year. 📈 Research & Optimisation Mindset Obsess over prospecting, performance optimisation, and leveraging AI + data to smash targets. 🔎 List-Building Strength Skilled at identifying ICPs, budget owners, and decision-makers. ✍️ Communication More ❯

user pain points into small, impactful product enhancements. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with Ruby on Rails , modern JavaScript , and AWS . Skilled with SQL databases at scale and comfortable in Linux … to diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. Strong debugging, system design, and performance optimisation skills. A data-driven approach: you track and measure impact (e.g. MTTR, bug age). Why You’ll Love This Opportunity... High-impact work: every fix improves More ❯

user pain points into small, impactful product enhancements. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with Ruby on Rails , modern JavaScript , and AWS . Skilled with SQL databases at scale and comfortable in Linux … to diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. Strong debugging, system design, and performance optimisation skills. A data-driven approach: you track and measure impact (e.g. MTTR, bug age). Why You’ll Love This Opportunity... High-impact work: every fix improves More ❯

user pain points into small, impactful product enhancements. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with Ruby on Rails , modern JavaScript , and AWS . Skilled with SQL databases at scale and comfortable in Linux … to diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. Strong debugging, system design, and performance optimisation skills. A data-driven approach: you track and measure impact (e.g. MTTR, bug age). Why You’ll Love This Opportunity... High-impact work: every fix improves More ❯

user pain points into small, impactful product enhancements. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with Ruby on Rails , modern JavaScript , and AWS . Skilled with SQL databases at scale and comfortable in Linux … to diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. Strong debugging, system design, and performance optimisation skills. A data-driven approach: you track and measure impact (e.g. MTTR, bug age). Why You’ll Love This Opportunity... High-impact work: every fix improves More ❯

to improve user experience through route cause analysis. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with modern JavaScript frameworks , a good understanding of Ruby on Rails code working with SaaS applications. Skilled with SQL … diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. S trong debugging , system design, and performance optimisation skills. Why You’ll Love This Opportunity... High-impact work: every fix improves usability for hundreds of thousands of users. Results-driven culture with short feedback loops More ❯

to improve user experience through route cause analysis. Collaborate with Support, Product, and Engineering to prevent repeat issues. Build automation to streamline debugging, triage, and regression prevention. Improve system performance, reliability, and developer experience. What You’ll Bring Strong experience with modern JavaScript frameworks , a good understanding of Ruby on Rails code working with SaaS applications. Skilled with SQL … diagnose and fix complex production issues in large systems. A product mindset — you think about user experience and usability as much as code. S trong debugging , system design, and performance optimisation skills. Why You’ll Love This Opportunity... High-impact work: every fix improves usability for hundreds of thousands of users. Results-driven culture with short feedback loops More ❯

cutting edge Front End systems for Fixed Income eTrading, including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support Real Time trading and analytics. Key Responsibilities Design and develop responsive, low-latency Front End trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and Back End engineers to deliver seamless UI experiences. Contribute to architectural decisions and Front End performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering Front End applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

paced product team delivering impactful mobile experiences to a global user base. What you’ll do Build and maintain robust mobile apps using React Native and Expo Optimise app performance, implement modern architecture patterns, and handle push notifications, offline-first features, and state management Collaborate on backend APIs (REST or GraphQL) and integrate secure authentication methods - JWT, OAuth Deploy … deployment processes Experience with database design (SQL or NoSQL) and backend integrations Proven AWS deployment experience and familiarity with Infrastructure as Code (CDK) Knowledge of monitoring, logging, and application performance optimisation Why Apply? Outside IR35, long-term contract with genuine extension potential High-value project Opportunity to influence software adoption at global scale Flexibility to work remotely within More ❯

paced product team delivering impactful mobile experiences to a global user base. What you’ll do Build and maintain robust mobile apps using React Native and Expo Optimise app performance, implement modern architecture patterns, and handle push notifications, offline-first features, and state management Collaborate on backend APIs (REST or GraphQL) and integrate secure authentication methods - JWT, OAuth Deploy … deployment processes Experience with database design (SQL or NoSQL) and backend integrations Proven AWS deployment experience and familiarity with Infrastructure as Code (CDK) Knowledge of monitoring, logging, and application performance optimisation Why Apply? Outside IR35, long-term contract with genuine extension potential High-value project Opportunity to influence software adoption at global scale Flexibility to work remotely within More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯

build cutting edge frontend systems for Fixed Income eTrading including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support real-time trading and analytics. Key Responsibilities Design and develop responsive, low-latency front-end trading systems using React. Build dashboards and visualisation tools for Fixed … Income market data and trade execution. Collaborate with traders, quants, and back-end engineers to deliver seamless UI experiences. Contribute to architectural decisions and front-end performance tuning. Required Skills & Experience Expertise in React.js and modern JavaScript (ES6+) Proven experience delivering front-end applications in electronic trading environments Strong understanding of performance optimisation and low-latency UI More ❯