76 to 100 of 280 Performance Tuning Jobs in London

more scalable and modern architecture. You’ll work across the stack using technologies like .NET and Vue.js , helping to rebuild legacy components and improve performance, maintainability, and integration. If you enjoy working with both established and emerging technologies in a collaborative environment, we’d love to hear from you. … develop, and maintain scalable web applications using .NET and Vue.js. Support and enhance legacy systems built with older .NET and Vue.js versions. Optimize database performance (SQL Server, MongoDB). Collaborate with cross-functional teams to gather requirements and implement solutions. Write clean, maintainable, and efficient code following best practices. … AI tools or services into software solutions. Strong analytical and debugging skills with a keen eye for detail. Preferred Qualifications Deep knowledge of SQL performance tuning, indexing, and query optimization. Experience with message brokers and asynchronous communication patterns (e.g., RabbitMQ, Kafka). Exposure to CI/CD pipelines More ❯

more scalable and modern architecture. You’ll work across the stack using technologies like .NET and Vue.js , helping to rebuild legacy components and improve performance, maintainability, and integration. If you enjoy working with both established and emerging technologies in a collaborative environment, we’d love to hear from you. … develop, and maintain scalable web applications using .NET and Vue.js. Support and enhance legacy systems built with older .NET and Vue.js versions. Optimize database performance (SQL Server, MongoDB). Collaborate with cross-functional teams to gather requirements and implement solutions. Write clean, maintainable, and efficient code following best practices. … AI tools or services into software solutions. Strong analytical and debugging skills with a keen eye for detail. Preferred Qualifications Deep knowledge of SQL performance tuning, indexing, and query optimization. Experience with message brokers and asynchronous communication patterns (e.g., RabbitMQ, Kafka). Exposure to CI/CD pipelines More ❯

to-day IT network operations, infrastructure security, and project delivery. You will manage LAN, WAN, WiFi, VMware environments, firewalls, and server infrastructure, ensuring high performance, resilience, and compliance across a large and complex healthcare setting. Key Responsibilities: Manage the Trusts Local Area Networks, Wide Area Networks, WiFi, and VMware … environments Configure, monitor and maintain servers, network switches, firewalls, and desktop equipment Provide technical expertise in network design, performance tuning, and capacity planning Implement changes in collaboration with the Network Security Manager Support and lead IT infrastructure projects across the Trust Maintain and manage multiple firewall systems (Fortigate More ❯

Engineer to develop immersive, interactive tools built on modern web technologies. This role is part of a multidisciplinary Agile team focused on delivering high-performance, secure systems for operational use in complex environments. You'll have the opportunity to shape feature development and continuously improve delivery standards. Skills/… Cesium Familiar with Agile ways of working, including team ceremonies and sprint planning Skilled in creating responsive, mobile-friendly layouts to ensure cross-device performance Experience with performance tuning across applications and databases to optimise system speed Hands-on experience implementing application security fixes based on pen More ❯

private cloud, carefully managed by our own Infrastructure Engineers and our hosting partners. We run a network of SQL Servers, ensuring high availability and performance for our data-driven solutions. The Head of Development role: We are seeking an experienced Full Stack Head of Development to guide and inspire … the Company's wider strategy Collaborate with our (ex Microsoft) Chief Data Architect SQL Guru to Architect and design distributed software systems with high performance, scalability, and availability in mind Write clean, efficient, and scalable code, following TDD best practices in an Agile environment Set up and manage formal … Persistence Frameworks (Entity Framework, Dapper, etc.) SOLID Principles Web APIs MS SQL Server integration through Stored Procedures Persistence Frameworks and SQL CLR extensions SQL performance tuning About you: Hold at least 5 years experience as a Full Stack Software Engineer and 3+ years in a leadership/management More ❯

private cloud, carefully managed by our own Infrastructure Engineers and our hosting partners. We run a network of SQL Servers, ensuring high availability and performance for our data-driven solutions. The Head of Development role: We are seeking an experienced Full Stack Head of Development to guide and inspire … the Company's wider strategy • Collaborate with our (ex Microsoft) Chief Data Architect SQL Guru to Architect and design distributed software systems with high performance, scalability, and availability in mind • Write clean, efficient, and scalable code, following TDD best practices in an Agile environment • Set up and manage formal … Persistence Frameworks (Entity Framework, Dapper, etc.) • SOLID Principles • Web APIs • MS SQL Server integration through Stored Procedures • Persistence Frameworks and SQL CLR extensions • SQL performance tuning About you: • Hold at least 5 years experience as a Full Stack Software Engineer and 3+ years in a leadership/management More ❯

private cloud, carefully managed by our own Infrastructure Engineers and our hosting partners. We run a network of SQL Servers, ensuring high availability and performance for our data-driven solutions. The Head of Development role: We are seeking an experienced Full Stack Head of Development to guide and inspire … the Company’s wider strategy • Collaborate with our (ex Microsoft) Chief Data Architect SQL Guru to Architect and design distributed software systems with high performance, scalability, and availability in mind • Write clean, efficient, and scalable code, following TDD best practices in an Agile environment • Set up and manage formal … Persistence Frameworks (Entity Framework, Dapper, etc.) • SOLID Principles • Web APIs • MS SQL Server integration through Stored Procedures • Persistence Frameworks and SQL CLR extensions • SQL performance tuning About you: • Hold at least 5 years experience as a Full Stack Software Engineer and 3+ years in a leadership/management More ❯

low-latency execution. The ideal candidate will have a deep understanding of market microstructure, a strong background in multi-threaded programming, and experience with performance optimisation at the hardware and software level. Duties: Design, develop, and optimize low-latency, high-throughput trading algorithms for equities. Implement and fine-tune … high-performance C++ code for electronic trading strategies. Work closely with quants, traders, and infrastructure teams to improve execution quality and trading performance. Utilise profiling tools and performance tuning techniques to ensure ultra-low-latency execution. Monitor and troubleshoot live trading strategies in production. Background: Bachelor’s … programming, including CPU cache optimization, lock-free data structures, and efficient memory management. Experience with network programming (TCP/IP, UDP, multicast) and high-performance messaging frameworks. Familiarity with Linux kernel tuning, real-time scheduling, and system profiling. Strong problem-solving skills and ability to work in a More ❯

low-latency execution. The ideal candidate will have a deep understanding of market microstructure, a strong background in multi-threaded programming, and experience with performance optimisation at the hardware and software level. Duties: Design, develop, and optimize low-latency, high-throughput trading algorithms for equities. Implement and fine-tune … high-performance C++ code for electronic trading strategies. Work closely with quants, traders, and infrastructure teams to improve execution quality and trading performance. Utilise profiling tools and performance tuning techniques to ensure ultra-low-latency execution. Monitor and troubleshoot live trading strategies in production. Background: Bachelor’s … programming, including CPU cache optimization, lock-free data structures, and efficient memory management. Experience with network programming (TCP/IP, UDP, multicast) and high-performance messaging frameworks. Familiarity with Linux kernel tuning, real-time scheduling, and system profiling. Strong problem-solving skills and ability to work in a More ❯

low-latency execution. The ideal candidate will have a deep understanding of market microstructure, a strong background in multi-threaded programming, and experience with performance optimisation at the hardware and software level. Duties: Design, develop, and optimize low-latency, high-throughput trading algorithms for equities. Implement and fine-tune … high-performance C++ code for electronic trading strategies. Work closely with quants, traders, and infrastructure teams to improve execution quality and trading performance. Utilise profiling tools and performance tuning techniques to ensure ultra-low-latency execution. Monitor and troubleshoot live trading strategies in production. Background: Bachelor’s … programming, including CPU cache optimization, lock-free data structures, and efficient memory management. Experience with network programming (TCP/IP, UDP, multicast) and high-performance messaging frameworks. Familiarity with Linux kernel tuning, real-time scheduling, and system profiling. Strong problem-solving skills and ability to work in a More ❯

define success criteria, gather inputs, and translate business requirements into scalable technical solutions. Design, implement, and optimize mainframe databases and subsystems, ensuring high availability, performance, and security. Lead modernization initiatives, enabling integration with cloud services and unlocking value from existing mainframe data assets. Guide cross-functional teams throughout the … z/OS environments and technologies including JCL, JES, RACF/ACF2, CICS, COBOL, PL/I, SQL, and Natural. Proven experience in database performance tuning, capacity planning, and high availability configuration. Ability to articulate the value of modern database features in achieving business outcomes. Excellent problem-solving More ❯

Your proficiency will steer our shift to the public cloud, with a focus on AWS product usage, authentication and authorization best practices, certificate management, performance enhancement, and database migration tools. Job Responsibilities: Advise and make custom configuration changes in one to two tools to generate a product at the … ETL, ELT & reporting solutions using key components like Spark SQL & Spark Streaming. Strong knowledge of multi-threading and high-volume batch processing. Proficiency in performance tuning for Java/Python and Spark. Deep knowledge of AWS products/services and Kubernetes/container technologies and their optimal use More ❯

in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. The … in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. Eligibility … and Ethnicity (CORE) and AmazeCon (gender diversity) conferences, inspire us to never stop embracing our uniqueness. Mentorship & Career Growth We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, mentorship and other career-advancing More ❯

in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You will be required to occasionally participate in "on-call" rotations to resolve incidents occurring out-of-hours. The … in this role involves collaborating with technology leaders, contributing to the enhancement of day-to-day operations, and ensuring improvements in availability, reliability, latency, performance, and efficiency of the ESC. You'll spend roughly 50% of your time operating production systems and 50% working with your team to make … long-term improvements to the reliability, availability, and performance of those software systems. Over the course of a week, you will root cause why some deployments recently failed, and fix those bugs. Later in the week you may execute a highly sensitive time-critical change to production. You can More ❯

solving complex technical challenges at scale, using modern technologies and best practices. What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯

solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯