24 of 24 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 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 ...

beneficial but is not essential. Experience in any of the following would be beneficial: LangChain and/or LangGraph Python memory management and performance optimisation GPU optimisation and acceleration PyTorch ONNX/ONNX Runtime Model inference and acceleration Responsibilities for Machine Learning Engineer: Develop and maintain high … prototyping and experimentation through to production implementation Optimise machine learning models and Python software 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 ...

projects that demand innovation, collaboration, and thought leadership . Role – We are seeking an experienced SAP Technical Architect to lead the design, governance, and optimisation of enterprise SAP landscapes across a large-scale SAP transformation programme. This is a senior architecture role responsible for defining technical strategy, ensuring platform … scalability, security, and performance, and driving the successful delivery of SAP solutions across S/4HANA, SAP BTP, integration platforms, and enterprise applications. Working closely with business stakeholders, solution architects, Basis teams, developers, and integration specialists, you will provide technical leadership across the full SAP ecosystem while ensuring alignment ...

data integration workflows. Operational Excellence: Contribute to defining reusable development patterns, enforcing coding standards, and implementing MLOps best practices that support version control, performance optimisation, and maintainability. Cross-Disciplinary Collaboration: Work side-by-side with data scientists, product managers, platform engineers, and QA teams to align on technical ...

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 ...

because we value face-to-face collaboration, team brainstorming, and peer-to-peer mentoring. What we are looking for Summary The SQL Developer & Database Performance Specialist is expected to be our internal "SQL Whisperer." You will have a profound understanding of how database queries execute inside Microsoft SQL Server … Deep profiling of database queries using SQL Server Management Studio (SSMS), Plan Cache analysis, and Extended Events. Reading and evaluating Execution Plans to spot performance bottlenecks (e.g., expensive table scans, bad cardinality estimates, or costly joins). Designing and implementing advanced indexing strategies specifically optimised for heavy read/ ...

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 ...

Visualforce, SOQL/SOSL, triggers, controllers and Salesforce platform technologies . Design reusable development frameworks and components, ensuring high standards across code quality, performance, testing and maintainability . Implement complex Salesforce configuration, automation, workflows, approvals, validation rules and security controls . Agentforce, AI & Data Cloud Design and develop Salesforce … leadership across Salesforce programmes, contributing to solution design, development standards, code reviews and engineering best practices . Drive continuous improvement across development, automation, platform performance and technical delivery. Key Skills: Extensive hands-on experience delivering enterprise Salesforce solutions , with strong development expertise across Apex, Lightning Web Components (LWC), Visualforce ...

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 ...

role The UI Engineer will join the FIC Sales Technology team, playing a key role in designing and building modern, intuitive and high-performance user interfaces that directly support our client's Fixed Income & Currencies (FIC) sales organisation. Working with React, JavaScript, TypeScript, and modern web technologies … applications, working across core application components and platform capabilities, contributing to systems used directly by front-office teams. What you'll do: Build high-performance, scalable software components using modern engineering practices and contribute to complex technical problem solving. Support the design and implementation of distributed, service-oriented architecture ...

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 ...

SOAP APIs, Platform Events and modern integration patterns . Working closely with Architects, Developers and business stakeholders, you will deliver secure, scalable and high-performance integrations , supporting wider Salesforce transformation and Agentforce/Agentic AI initiatives. Key Responsibilities: Salesforce Integration & Development Design and develop complex integrations between Salesforce … Work across Salesforce DX, CI/CD, automated testing, version control and deployment , ensuring high-quality and maintainable solutions. Troubleshoot complex integration, application and performance issues across the Salesforce landscape. Key Skills: Extensive hands-on experience designing and delivering enterprise Salesforce integrations , with strong expertise across REST/SOAP ...

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 ...

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 ...

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/ ...

technical and business teams to deliver secure, high-quality data solutions. The role offers a good mix of hands-on engineering, technical design and performance optimisation. Key Skills: Strong Google Cloud Platform experience BigQuery, including partitioning, clustering and performance tuning Dataflow, Dataproc and Pub/Sub Cloud Composer ...

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 ...

Latency) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise- Frontend Technologies … Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading platforms is an advantage Strong understanding of performance optimization and low-latency UI applications Experience with highly available, mission-critical systems. ...

days per week We are looking for a Senior Solution Engineer GPU & AI Infrastructure to support the design of cutting-edge AI and high-performance computing infrastructure. This is a senior Solution Architecture/Technical Pre-Sales role focused on NVIDIA GPU infrastructure, AI workloads, HPC environments and high … GB200 platforms. Design both bare-metal and Kubernetes-based GPU environments. Work with Slurm, Kubernetes, NVIDIA GPU Operator, NCCL and GPUDirect. Design high-performance storage solutions for AI workloads. Lead technical discussions with CTOs, AI leaders and infrastructure teams. Support RFPs, RFIs, technical proposals and customer presentations. Lead technical ...