1 to 25 of 28 Performance Optimisation Jobs in the City of London

support, configuration management, and lifecycle maintenance across the network estate for financial services clients. The role focuses on complex incident resolution, change execution, and performance optimisation for SDWAN, WAN, LAN/WLAN, VPN/SASE, and load-balancing environments, ensuring all activities meet stringent regulatory, security, and compliance … audit trails Support onboarding of new sites/services using Zero-Touch Provisioning (ZTP) and Infrastructure-as-Code pipelines Manage routing policies, QoS, wireless performance tuning, and load balancer configuration updates Collaborate with vendor management teams on escalated transport or device issues, ensuring regulatory requirements are met Financial Services ...

within their sector and an increasing focus on data-driven decision making. Data sits at the heart of their strategy, supporting product development, commercial performance, and operational effectiveness. With a collaborative data team and continued investment in modern analytics platforms, they are building a scalable, governed, and future-focused … initiatives, and reporting standards Acting as an escalation point for complex reporting and data challenges Collaborating with Data Engineers on data architecture, modelling, and performance optimisation Contributing to a major cloud migration programme and the wider modernisation of the analytics ecosystem Your Skills & Experience Strong commercial experience with ...

within their sector and a growing commitment to data-driven decision making. Data sits at the heart of their strategy, supporting product development, commercial performance, and operational effectiveness. With a collaborative data team and investment in modern analytics platforms, they are building a scalable, governed, and future-focused data … frameworks, and reporting standards Acting as the escalation point for complex BI and reporting challenges Partnering with data engineering teams on architecture, modelling, and performance optimisation Contributing to a major cloud migration programme and helping modernise the wider analytics ecosystem Your Skills & Experience Strong commercial experience with Tableau ...

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 ...

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 ...

technical decisions, while also collaborating closely with a highly technical team Experience in any of the following would be beneficial: Python memory management and performance optimisation GPU optimisation and acceleration Responsibilities for Machine Learning Engineer: Deploy and integrate new machine learning models into advanced commercial software products … projects from rapid prototyping and experimentation through to production implementation Optimise machine learning models for speed, scale, runtime and memory usage Help improve the performance and scalability of existing AI systems Develop innovative new features using machine learning and AI technologies Explore new technologies and approaches to solve complex ...

mind, particularly around Azure A collaborative, problem-solving mindset-comfortable investigating and fixing issues as they arise Additional information: Nice to have: experience with performance optimisation and troubleshooting performance bottlenecks If you're excited by full-stack Azure development, want to contribute to healthcare technology, and enjoy ...

mind, particularly around Azure A collaborative, problem-solving mindset-comfortable investigating and fixing issues as they arise Additional information: Nice to have: experience with performance optimisation and troubleshooting performance bottlenecks If you're excited by full-stack Azure development, want to contribute to healthcare technology, and enjoy ...

enterprise systems, including Oracle databases Building reusable data engineering frameworks and improving development best practices Ensuring high standards of data quality, integrity, security and performance Troubleshooting production issues and implementing sustainable solutions Translating business and technical requirements into robust engineering solutions Producing clear technical documentation and supporting knowledge transfer … databases Proven experience designing, building and supporting data pipelines and integration solutions Experience working with cloud-based data platforms Good understanding of data modelling, performance optimisation and data quality controls Experience across the full software development lifecycle Ability to work independently and take ownership of technical delivery Strong ...

platform Implement and maintain effective logging, metrics, tracing, alerting, and dashboards Define and improve SLIs, SLOs, and reliability metrics Proactively identify and resolve performance, availability, and reliability issues Lead and contribute to incident response, troubleshooting, and root cause analysis Automate operational processes and eliminate repetitive manual tasks Work closely … engineers to improve deployment processes, system reliability, and developer experience Help improve platform resilience, scalability, and disaster recovery capabilities Contribute to capacity planning and performance optimisation as the platform scales Establish and champion SRE best practices across the wider engineering function What We're Looking For Proven commercial ...

developers and business stakeholders, designing and developing database solutions supporting business-critical applications. Key responsibilities SQL Server database development Complex T-SQL development and optimisation Stored procedures, views and functions Relational database design and data modelling Performance tuning and troubleshooting Supporting database changes through development, test and production … Server database development in production environments , including: Excellent T-SQL skills Strong SQL Server and SSMS experience Relational database design and data modelling Performance optimisation and troubleshooting Experience supporting business-critical applications Exposure to SQL Server Always On/high availability , SQL Server administration, source control, CI/ ...

classes, controllers, triggers, Visualforce and web services. Experience developing Salesforce integrations using REST and SOAP APIs. Strong knowledge of SOQL, SOSL, dynamic queries and performance optimisation. Experience writing unit tests and applying code quality and coverage best practices. Knowledge of asynchronous Apex, including Batch Apex, Queueable Apex and Future ...

Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence … critical. You will design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance critical environments and want your work to have real market impact, we would love to hear from you. Please note that this ...

infrastructure for frontier AI research Translating novel research into production-quality ML systems Distributed training and inference across large GPU clusters Optimising model performance, training pipelines and experimentation workflows Developing multimodal data pipelines spanning simulations, laboratory data and scientific literature Working alongside world-class AI researchers, engineers and scientists … Python skills with PyTorch and/or JAX Experience building scalable production ML systems Someone who enjoys turning cutting-edge research into robust, high-performance software Bonus experience: Distributed GPU training (multi-GPU/multi-node) Scientific machine learning or simulation environments Performance optimisation and systems engineering ...

Windows 365 and Azure Virtual Desktop (AVD) platforms Strong knowledge of application packaging , deployment, and lifecycle management technologies Experience in client application troubleshooting and performance optimisation Good understanding of authentication and identity management technologies, including Active Directory and Microsoft Entra ID Effective collaborator with strong communication and stakeholder ...

Windows 365 and Azure Virtual Desktop (AVD) platforms Strong knowledge of application packaging, deployment, and lifecycle management technologies Experience in client application troubleshooting and performance optimisation Good understanding of authentication and identity management technologies, including Active Directory and Microsoft Entra ID Effective collaborator with strong communication and stakeholder ...

technology expertise. We support Tier-1 operators and technology vendors through large-scale RAN transformation programmes — from strategy and design through to deployment, optimisation, and ongoing operations. We leverage emerging technologies including Open RAN, 5G Advanced, 6G, Satellite, Generative AI, and Autonomous Networks to deliver measurable business outcomes … technical design session with a vendor engineering team. This role spans the full RAN value chain: pre-sales solutioning, architecture definition, programme delivery, performance optimisation, and the application of AI/ML and Autonomous Network techniques to transform how networks are operated. Support end-to-end RAN transformation ...

will act as the technical authority for Tableau and take ownership of BI standards across the organisation. You will focus on improving the scalability, performance, and governance of the existing BI environment while supporting a major cloud migration programme. Key responsibilities include: Leading end-to-end Tableau development across … Desktop, Prep, and Cloud Defining and enforcing best practice for dashboard design, data modelling, and performance optimisation Owning BI governance frameworks, including data quality and reporting standards Supporting and enabling business users to develop self-service analytics capability Writing and optimising complex SQL across cloud and on-premise ...

dashboard-building role. You’ll be working on the underlying systems that make complex visualisations fast, accurate, and scalable. The challenges range from rendering performance and interaction design through to algorithms, graphics, API design, and numerical correctness. What you’ll be doing Designing and building core charting features used … developers around the world Working across rendering, interaction, animation, and visualisation infrastructure Solving performance-critical problems involving Canvas, SVG, and large datasets Improving correctness, precision, and usability across a sophisticated charting platform Designing APIs that are elegant, flexible, and easy for developers to adopt Taking features from initial concept ...

Producing interactive experiences and traditional outputs, including walkthroughs, design-option toggles, cinematic stills and animated flythroughs, all from the same source scenes • Owning scene performance: profiling and optimising frame rate, draw calls, memory and load times so builds run smoothly on target hardware • Setting up reusable systems such … technical art role • Excellent understanding of real-time rendering and visualisation workflows • Proven ability to create high-quality 3D environments and assets, including geometry optimisation, UVs, PBR texturing and LODs • A solid grasp of real-time performance optimisation, frame rate, draw calls, memory and build packaging ...

with the implementation of a new screening solution Providing practical troubleshooting support with the system e.g., use case reviews, testing coordination, data quality, performance optimisation, keyword effectiveness Investigating screening issues identified by the Compliance team and coordinating with IT and third-party resources to resolve with alternative solutions ...

built in. What you'll be doing: Acting as engineering lead for BMS/OT platform health across a multi-site portfolio Fault diagnosis, performance optimisation and lifecycle work (upgrades, controller refresh, server/workstation replacement) Commissioning, tuning and validating control strategies and alarms Owning OT/ ...

Workplace and automation solutions. Work closely with infrastructure, cloud, application and business teams to deliver scalable enterprise service management platforms. Drive automation and workflow optimisation to improve service delivery and operational efficiency. Define solution architecture, technical standards, governance and best practices. Support continual improvements across Incident, Problem, Change, Asset … Configuration Management processes in line with ITIL. Provide technical leadership for platform upgrades, migrations and integration projects. Monitor platform performance, troubleshoot complex technical issues and ensure platform stability. Produce architecture documentation, technical designs and operational procedures. Engage with stakeholders throughout the delivery lifecycle to support strategic transformation initiatives. Implement ...

technical talent as well as a keen desire to deeply understand our products and services to push our technology forward with respect to functionality, performance, reliability, and scalability. Our team in Search and Recs Experience is looking for curious, empathetic, and creative problem solvers with a growth mindset. … shared platforms. Apply software engineering best practices in coding, testing (including unit and UI tests), code reviews, and continuous integration to ensure high reliability, performance, and security of Android applications. Collaborate with product managers, designers, and other engineers across teams to break down requirements, refine technical solutions, and deliver ...

reused across multiple brands and platforms. Drive engineering excellence for the services you own by championing code quality, automated testing, observability, performance optimization, and simplification, taking technical responsibility for service health, scalability, resilience, and the ongoing reduction of technical debt and operational overhead. Provide technical mentorship and guidance … experience. 8+ years of relevant professional software development experience with a strong focus on backend development, using Java or Kotlin, building and operating high-performance, high-throughput, highly available, and scalable services on cloud platforms. Proven experience owning one or more production services or components throughout their lifecycle, including ...