276 to 300 of 393 Performance Tuning Jobs in England

London to find a highly skilled Front-End Software Engineer to join their world-class engineering team. This is an opportunity to work at the very heart of high-performance trading technology — building ultra-responsive, visually intuitive web interfaces for some of the most demanding users in finance. What You’ll Be Doing: Building high-performance, data-intensive … engineering excellence and code quality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) What They’re Looking For: Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat-structured, engineering-led environment with rapid decision More ❯

London to find a highly skilled Front-End Software Engineer to join their world-class engineering team. This is an opportunity to work at the very heart of high-performance trading technology — building ultra-responsive, visually intuitive web interfaces for some of the most demanding users in finance. What You’ll Be Doing: Building high-performance, data-intensive … engineering excellence and code quality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling, or custom charting libraries (e.g., D3.js, Highcharts) What They’re Looking For: Strong experience with React and modern JavaScript/TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat-structured, engineering-led environment with rapid decision More ❯

manage various applications Collaborate with engineering team and product team to establish best products Follow outlined standards of quality related to code and systems Develop automated tests and conduct performance tuning Qualifications Bachelor's degree in Computer Science or relevant field 4+ years of experience working with .NET or relevant experiences Experience developing web-based applications in C# More ❯

Strong server-side Java development experience Solid understanding of Java architecture and design patterns Excellent debugging and unit testing skills Experience in front-office environments Knowledge of multi-threading, performance tuning, and memory management Exposure to FX, listed derivatives, smart order routing, and FIX order flow Rate: Up to £825/day , inside IR35 Contract: Initial 6 months More ❯

Strong server-side Java development experience Solid understanding of Java architecture and design patterns Excellent debugging and unit testing skills Experience in front-office environments Knowledge of multi-threading, performance tuning, and memory management Exposure to FX, listed derivatives, smart order routing, and FIX order flow Rate: Up to £825/day , inside IR35 Contract: Initial 6 months More ❯

experience as a Software Developer . Strong expertise in API development and service integration . Proficiency in C# and the .NET framework . Solid understanding of SQL databases, including performance tuning and query optimization. Knowledge of Azure Devops (build/deployment automation) If you feel you have the right experience and knowledge for this exciting role, please apply More ❯

experience as a Software Developer . Strong expertise in API development and service integration . Proficiency in C# and the .NET framework . Solid understanding of SQL databases, including performance tuning and query optimization. Knowledge of Azure Devops (build/deployment automation) If you feel you have the right experience and knowledge for this exciting role, please apply More ❯

Systems, or Platform Engineering Deep knowledge of Linux, Python, and shell scripting Proven experience with Kubernetes, observability tooling, and CI/CD frameworks Strong grasp of distributed systems and performance tuning Trading, Crypto or Hedge Fund Experience Experience working in low-latency, high-frequency trading environments Why join: Work on high-impact systems that directly influence trading outcomes More ❯

Systems, or Platform Engineering Deep knowledge of Linux, Python, and shell scripting Proven experience with Kubernetes, observability tooling, and CI/CD frameworks Strong grasp of distributed systems and performance tuning Trading, Crypto or Hedge Fund Experience Experience working in low-latency, high-frequency trading environments Why join: Work on high-impact systems that directly influence trading outcomes More ❯

distributed firewalls, and routing policies for enhanced security. Collaborate with cross-functional teams on modernization and automation initiatives. Maintain detailed design documentation and mentor engineering teams. Drive capacity planning, performance tuning, and continuous improvement. What We’re Looking For Extensive experience in enterprise networking and virtual network environments. Hands-on experience with VMware NSX. Strong knowledge of L2 More ❯

result without friction. You’ll have room to experiment, try new approaches, and design systems in a place that backs bold thinking. Key Responsibilities: Build, run, and improve high-performance GPU training and inference clusters with a focus on reliability and automation Design and implement high-throughput data paths, including work on caching, I/O, and data locality … across compute and storage Benchmark, profile, and fix performance issues across compute, network, and orchestration layers Set up clear observability, resilience, and security controls for sensitive research environments Work with Research, Data, and Applied teams to plan GPU and storage capacity and support smoother ML experimentation Technical Skills: Strong experience designing and operating large-scale ML compute clusters Good … understanding of GPU architecture, high-speed networking, and performance tuning for distributed training Experience with modern containerised systems and migrations from traditional schedulers Knowledge of high-throughput storage systems for ML or HPC workloads Solid experience with IaC and CI/CD (Terraform, Argo CD, or similar) What’s on Offer: Salary packages competitive with FAANG businesses An More ❯

result without friction. You’ll have room to experiment, try new approaches, and design systems in a place that backs bold thinking. Key Responsibilities: Build, run, and improve high-performance GPU training and inference clusters with a focus on reliability and automation Design and implement high-throughput data paths, including work on caching, I/O, and data locality … across compute and storage Benchmark, profile, and fix performance issues across compute, network, and orchestration layers Set up clear observability, resilience, and security controls for sensitive research environments Work with Research, Data, and Applied teams to plan GPU and storage capacity and support smoother ML experimentation Technical Skills: Strong experience designing and operating large-scale ML compute clusters Good … understanding of GPU architecture, high-speed networking, and performance tuning for distributed training Experience with modern containerised systems and migrations from traditional schedulers Knowledge of high-throughput storage systems for ML or HPC workloads Solid experience with IaC and CI/CD (Terraform, Argo CD, or similar) What’s on Offer: Salary packages competitive with FAANG businesses An More ❯

law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯

law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯

law firm is seeking an experienced Applications Operations Analyst to join its London office. This is a fantastic opportunity to play a key role in maintaining and improving the performance, security, and reliability of enterprise applications across a dynamic and fast-paced professional services environment. Reporting to the Manager of Applications Operations, the successful candidate will be responsible for … patching, monitoring, and troubleshooting, while also contributing to process improvement, documentation, and integration stability. The role involves close collaboration with infrastructure, security, and business teams to ensure seamless application performance and user experience. Key Responsibilities: Perform system maintenance, patching, and upgrades in line with change management procedures Monitor application health and performance, proactively resolving issues Manage user access … base articles Identify opportunities for automation and process optimisation Track and report on KPIs, system uptime, and user engagement metrics Collaborate with cross-functional teams to support scalability and performance tuning Ideal Candidate Profile: 3+ years of experience in enterprise application support or IT operations Strong troubleshooting and analytical skills Familiarity with ITSM platforms (e.g., ServiceNow) and monitoring More ❯

We’re working with a leading global investment bank expanding its Front Office FX eTrading team. This is a greenfield build of a next-generation trading platform that is performance-critical, front-office facing, and built for scale and speed. You’ll be joining a team of exceptional technologists delivering cutting-edge solutions across FX Spot, Forwards, and Pricing … trading. Work closely with traders and quants to deliver performant pricing and hedging solutions. Lead components of system re-architecture and optimisation projects. Take ownership of end-to-end performance, from network to JVM tuning. Contribute to a high-performing, globally distributed engineering team. Technical Environment Core Java, Aeron, lock-free/concurrent programming High-performance messaging, distributed … RFQ, and automated hedging systems What We’re Looking For Proven experience designing or building low-latency trading systems (FX or other asset classes). Deep understanding of Java performance tuning, GC optimisation, and threading models. Ability to discuss design decisions and architecture in depth. Front-office experience and a strong understanding of electronic trading workflows. Why Apply More ❯

We’re working with a leading global investment bank expanding its Front Office FX eTrading team. This is a greenfield build of a next-generation trading platform that is performance-critical, front-office facing, and built for scale and speed. You’ll be joining a team of exceptional technologists delivering cutting-edge solutions across FX Spot, Forwards, and Pricing … trading. Work closely with traders and quants to deliver performant pricing and hedging solutions. Lead components of system re-architecture and optimisation projects. Take ownership of end-to-end performance, from network to JVM tuning. Contribute to a high-performing, globally distributed engineering team. Technical Environment Core Java, Aeron, lock-free/concurrent programming High-performance messaging, distributed … RFQ, and automated hedging systems What We’re Looking For Proven experience designing or building low-latency trading systems (FX or other asset classes). Deep understanding of Java performance tuning, GC optimisation, and threading models. Ability to discuss design decisions and architecture in depth. Front-office experience and a strong understanding of electronic trading workflows. Why Apply More ❯

across Python , large-scale data systems, and modern AWS infrastructure. You’ll lead a squad of 4 engineers , guiding them through complex technical decisions and helping them deliver high-performance, data-intensive systems operating over hundreds of millions to billions of rows . The product itself is an AI/ML-driven SaaS platform, and your contributions will train … . Shape high-throughput data pipelines and SQL-based workflows , ensuring scalability and performance. Run technical design reviews , guide architecture decisions, and support engineers in navigating trade-offs around performance, cost, and reliability. Champion operational excellence — strong observability, testing discipline, incident response, and SLO ownership. Collaborate with Product & Design to define technical requirements, prioritise roadmaps, and drive measurable outcomes. … Influence Primary language: Python AWS stack: Redshift, Lambda, ECS, S3 Data workflows: Parquet, SQL, distributed data pipelines Scale: systems processing hundreds of millions to billions of rows Focus areas: performance tuning, reliability, cost optimisation, architectural clarity What You’ll Bring Prior experience as an Engineering Manager or Tech Lead managing small, high-performing engineering teams. Strong technical background More ❯

across Python , large-scale data systems, and modern AWS infrastructure. You’ll lead a squad of 4 engineers , guiding them through complex technical decisions and helping them deliver high-performance, data-intensive systems operating over hundreds of millions to billions of rows . The product itself is an AI/ML-driven SaaS platform, and your contributions will train … . Shape high-throughput data pipelines and SQL-based workflows , ensuring scalability and performance. Run technical design reviews , guide architecture decisions, and support engineers in navigating trade-offs around performance, cost, and reliability. Champion operational excellence — strong observability, testing discipline, incident response, and SLO ownership. Collaborate with Product & Design to define technical requirements, prioritise roadmaps, and drive measurable outcomes. … Influence Primary language: Python AWS stack: Redshift, Lambda, ECS, S3 Data workflows: Parquet, SQL, distributed data pipelines Scale: systems processing hundreds of millions to billions of rows Focus areas: performance tuning, reliability, cost optimisation, architectural clarity What You’ll Bring Prior experience as an Engineering Manager or Tech Lead managing small, high-performing engineering teams. Strong technical background More ❯

deploy advanced vision models for object detection, segmentation, tracking, and behavior analysis within real-world retail and mobility environments. You will play a key role in optimizing real-time performance for edge and cloud systems, developing robust inference pipelines, and pushing the boundaries of multimodal AI. This is an exciting opportunity to work on cutting-edge visual AI that … of data scientists, engineers, and product experts. Key Responsibilities Design, train, and deploy Computer Vision models for detection, segmentation, tracking, and behavior understanding. Optimize inference pipelines for real-time performance on edge devices (e.g., NVIDIA Jetson, Coral) and cloud infrastructure . Collaborate with data and product teams to define new use cases, prototype solutions, and take models from lab … . Proven expertise in object detection/tracking models such as YOLO, Deep SORT, DINOv2 , or similar. Experience with real-time or low-latency processing , multi-threaded programming , and performance tuning . Experience deploying and optimizing models on edge devices (Jetson, Coral, etc.). Demonstrated passion for research, innovation, and emerging AI technologies . Experience in 3D modeling More ❯

of MongoDB solutions for microservices architectures Develop and execute migration strategies from monolithic systems to MongoDB Atlas Define and implement data ownership models, indexing, replication, and sharding strategies Drive performance tuning, scalability, and security best practices Collaborate with engineering teams to ensure data solutions align with architectural principles Experience required: Proven expertise in MongoDB and MongoDB Atlas (provisioning … optimisation, automation) Strong background in data modelling, indexing, sharding, and replication Experience designing microservices-based data architectures Demonstrated ability to identify and resolve performance bottlenecks Experience implementing MongoDB security and governance best practices Comfortable working in agile, fast-paced environments This role offers the opportunity to lead a technically complex and business-critical data migration within a forward-thinking More ❯

to Work With: Modern microservices architecture powering high-volume systems Containerisation using Docker and Kubernetes for scalable deployments Cloud-native platforms and automated CI/CD pipelines Real-time performance engineering and distributed computing challenges Secure development practices with a focus on system architecture and compliance Key Responsibilities: Advocating TDD and solid development practices Providing technical leadership and peer … provide support What You'll Need: Experience working on large commercial systems Strong skills in C#, .NET Core, and Web APIs Database experience, working with both SQL and NoSQL Performance tuning and optimisation expertise Contact Philip Boltt at Lorien Global for more information. IND_PC1 Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment More ❯

weeks Start date: ASAP About the Role: Were seeking an experienced Senior Implementation Specialist to join a global enterprise delivery team responsible for designing, building, and supporting high-performance SAN environments. Youll play a key role in end-to-end SAN architecture, configuration, and delivery, leveraging deep expertise in Brocade Gen6/Gen7 and FCIP technologies. The role is … build-outs Security policy implementation and compliance Provide 3rd Line operational support and lead migration/refresh projects (e.g. global SAN upgrades). Ensure best practices in fabric design, performance tuning, and lifecycle management. Collaborate with service delivery teams to meet operational and business objectives. Skills & Experience: Proven background in Brocade Gen6/Gen7 FCIP switch architecture and More ❯

at the heart of the systems-on-chip (SoCs) that power today's electronic products. Our embedded analytics technology allows product designers to add sophisticated cybersecurity, functional safety and performance tuning features; and it helps resolve critical issues such as increasing system complexity and ever- decreasing time-to-market. We are proud of our technology and selling globally … our development processes Being responsible for ensuring the overall quality of the released product Requirements An ability to take on challenging design problems, making appropriate trade-offs of power, performance and area Competence at digital design using RTL languages, preferably SystemVerilog or Verilog Experience using EDA tools including Questa, VCS or Xcelium Solid organisational and communication skills Some experience More ❯

OS, and integration technologies Familiarity with BOD architecture, Event Hub, and Mongoose-based applications Understanding of ERP security principles and implementation via OS Security Services Strong debugging, testing, and performance tuning skills Excellent problem-solving, communication, and team collaboration abilities Infor certification in relevant development technologies Experience with multi-tenant CloudSuite deployments Exposure to Infor ION Grid and More ❯