1 to 25 of 34 Performance Optimisation Jobs in the City of London

looking for a C++ Trading Platform Developer to join its London-based team. This is an opportunity to work at the intersection of high-performance engineering and digital asset markets, building and scaling a global trading platform that operates across dozens of exchanges worldwide. The environment combines the technical … platform spanning multiple continents, covering: Real-time market data capture Order entry and connectivity across numerous exchanges Robust networking and monitoring systems Scaling and performance optimisation of core infrastructure The tech stack is primarily C++ and Python, running on Linux across both development and production. The focus ...

product-focused environment where engineering decisions have direct impact at scale. The team operates at pace, with a strong emphasis on ownership, performance, and continuous iteration. The Role - Remote Europe (CET 3 We are seeking Senior Backend focused Full Stack Engineers to join a fully remote, cross-functional team … Responsibilities Design, build, and maintain scalable backend systems Work on high-traffic applications used by a global user base Contribute to architecture and performance optimisation Collaborate with cross-functional teams including Product, Design, and DevOps Take ownership of features from concept through to deployment Requirements 5+ years ...

responsibilities: Design, build, and maintain cloud infrastructure (primarily Azure and GCP) Develop and manage CI/CD pipelines and automation Implement monitoring, alerting, and performance optimisation Ensure security, compliance, and system reliability Troubleshoot production issues and provide operational support Collaborate with architects, developers, and stakeholders Champion DevOps culture ...

leadership position focused on building robust, scalable, and governed data solutions using modern cloud technologies. The Role Own the end-to-end design, build, optimisation, and support of scalable Spark/PySpark data pipelines (batch and streaming) Define and implement lakehouse architecture standards (medallion model: bronze, silver, gold), including … reconciliation) Drive CI/CD best practices for data platforms (infrastructure as code, automated testing, versioning, environment promotion) Mentor engineers on distributed data processing, performance optimisation, and cost efficiency Collaborate with data science, product, and compliance teams to translate requirements into scalable data solutions Required Skills & Experience Strong ...

full software delivery lifecycle Improving engineering efficiency by identifying bottlenecks and introducing better workflows, automation, and tooling Contributing to architecture decisions, scalability improvements, and performance optimisation Driving best practices across code quality, testing, CI/CD, and engineering standards Working closely with frontend applications and customer journeys ...

scale, highly structured datasets for regulated reporting across major banking and lending clients. The environment is data-heavy, fast-moving, and focused on accuracy, performance, and data integrity. We're looking for a Database Developer to join a small Agile team working across SQL development, data investigation, and production … support. You'll be responsible for maintaining and improving core data processing systems, resolving data issues, and optimising performance across large datasets. Split of work: 60% SQL development & optimisation 30% data investigation & support 10% tooling/process improvement Key Responsibilities Develop and optimise SQL Server-based data solutions ...

define and deliver a high-impact roadmap focused on improving conversion, reducing drop-off and increasing basket value, while laying the foundations for future optimisation across Product Listing Pages (PLPs) and the wider browsing journey. What You’ll Be Doing Own the PDP Vision & Roadmap Define the long-term … quantitative insights to identify friction points and opportunities across the customer journey Build and prioritise a roadmap focused on measurable commercial impact Drive Commercial Performance You’ll own and influence key ecommerce metrics including: PDP to Bag conversion Add-to-bag rate Average Order Value (AOV) Returns reduction through ...

years of relevant industry experience Significant experience with Golang and Git/GitHub SCM Strong experience with coding techniques and standard methodologies for security, performance optimization, and ease-of-use Experience in utilisation and deployment of cloud technologies in AWS or GCP , experience in container technologies such as Docker … through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript ...

years of relevant industry experience Significant experience with Golang and Git/GitHub SCM Strong experience with coding techniques and standard methodologies for security, performance optimization, and ease-of-use Experience in utilisation and deployment of cloud technologies in AWS or GCP , experience in container technologies such as Docker … through analytics dashboards Passion for high-quality code, tests, CI/CD, documentation, and production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript ...

Senior Systems Engineer | Rust 📍 London/Hybrid 💰 £140k – £200k + Performance Bonus + Equity This client is building high-performance infrastructure powering decentralised markets. The engineering environment is extremely lean, operating in domains where execution speed, system reliability, and infrastructure quality are vital. Engineers are responsible for designing … concurrent and multi-threaded systems Building integrations with external protocols and real-time networks Developing infrastructure orchestration and co-ordination systems Profiling and optimising performance-sensitive applications Designing resilient systems capable of operating under unpredictable workloads Engineers are expected to take ownership across the full lifecycle — architecture, implementation, optimisation ...

providing Python-based solutions that directly impact the profitability of the business. This is an exciting opportunity to work in a fast-paced, high-performance environment where you can push the boundaries of technology in financial markets. Key Responsibilities: Design, develop, and maintain highly efficient Python-based applications … commodities trading, risk management, and real-time data analysis. Build scalable, high-performance data pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance ...

handling sensitive data Desirable Skills: Experience with modern Android architecture (e.g., MVVM, Clean Architecture) Familiarity with CI/CD pipelines and automated testing Performance optimisation and app scalability experience Experience working on high-traffic or mission-critical applications What You'll Bring: A strong focus on delivery ...

application platforms transformation and also long-term managed capabilities. It helps clients connect technology decisions to business outcomes such as resilience, agility, cost optimisation and operational efficiency. This role is a blend of technology leadership, executive advisory and pre-sales enablement, complementing sales, delivery and architecture teams by bringing … architectures and platform engineering DevSecOps, CI/CD and developer productivity at scale Enterprise-scale application and digital managed services, including cost, reliability and performance optimisation Key Responsibilities Executive Advisory and Client Engagement Engage confidently with senior client stakeholders across enterprise accounts. Lead executive-level discussions on cloud ...

with core data engineering tools and technologies (e.g. ETL/ELT pipelines, data warehouses, orchestration tools) Strong understanding of data modelling, data quality, and performance optimisation Desirable Experience Experience with Palantir (Foundry, Gotham) Willingness and aptitude to learn Palantir technologies on the job Background working in defence, government ...

Skills Familiarity with AI-assisted development workflows Exposure to experimentation platforms (e.g. Statsig, Optimizely, Kameleoon) Experience implementing or managing feature flag systems Background in performance optimisation or large-scale A/B testing systems This role is ideal for someone who: Has operated as a senior engineer ...

Docker), and JVM tuning for containerized workloads. Observability & Operations: Application instrumentation (metrics, distributed tracing, structured logging) and production support in high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual ...

Collaborating closely with Product, Design, Backend, QA, and DevOps teams to deliver new features and enhancements Troubleshooting and resolving issues to ensure optimal app performance, security, and quality Participating in code reviews, architecture discussions, and staying updated with the latest iOS technologies and Apple guidelines Managing your workload independently … Proven experience in building and maintaining iOS applications with Swift and/or Objective-C Strong understanding of iOS development best practices, security, and performance optimisation Excellent communication skills and the ability to work collaboratively across teams Ability to manage tasks independently and contribute to technical discussions Familiarity ...

Strong understanding of secure coding practices and data protection considerations Desirable: Experience with CI/CD pipelines and automated testing for iOS Knowledge of performance optimisation and scalability in mobile apps Previous experience delivering services to large user bases What You'll Bring: A pragmatic, delivery-focused mindset ...

about working in games and contributing to our mission. WHAT YOU’LL DO Implement new gameplay features in Unity: UI, logic, data flow, and performance optimisations. Help maintain existing features, modernising code, and debugging inherited legacy systems. Build and iterate new gameplay prototypes with Game Design, Art and Product ...

Leading Infrastructure, Cloud, and Network operations across the organisation * Driving digital transformation, cloud migration, and cybersecurity initiatives * Managing enterprise systems, disaster recovery, resilience, and performance optimisation * Leading and developing a high-performing technical team * Hybrid role based in London The Person: * Strong background in IT Infrastructure, Cloud ...

development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers and ensure adherence to best coding practices. - Participate in code reviews and provide constructive feedback. - Stay updated with … Science, Engineering, or a related field. - Proven experience in Java development, with a focus on low-latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills ...

teams to ensure design to run alignment. Reliability, Capacity & Resilience Design DC architectures for high availability, redundancy, DR, and fault tolerance. Support capacity planning, performance optimisation, and lifecycle management. Participate in failure analysis, RCA reviews, and corrective architecture enhancements. Ensure infrastructure designs minimise single points of failure. Operational ...

real-world AI. What You’ll Do: Design, build, and operate scalable multi-GPU infrastructure across cloud environments (AWS, GCP, etc.) Own the reliability, performance, and cost-efficiency of model training platforms Develop and maintain infrastructure-as-code and automation for provisioning, orchestration, and lifecycle management Build and evolve … schedulers - Volcano, Ray, etc.) Experience supporting ML workloads or training pipelines (PyTorch, TensorFlow, etc.) Experience with multi-cloud or hybrid cloud environments Background in performance optimization for training workloads Experience in robotics, simulation, or embodied AI systems What we offer: Competitive salary plus participation in our Stock Option Plan ...

migrating from an on-premise Oracle estate to a modern data platform built on cloud and Databricks. This role leads the design, implementation, and optimisation the Data Mart and migration processes, ensuring alignment with enterprise data architecture and compliance standards. Core Responsibilities Databricks/Modern Data Platform Engineering Lead … Data Marts using Databricks (SQL/Python). Follow engineering best practices including version control, CI/CD, orchestration, and environment management. Ensure governance, performance optimisation. Legacy Oracle Migration Leadership Lead and coordinate the migration of data assets from Oracle database systems to the modern cloud data platform. Oversee ...

like VLA. As a Staff Engineer, you will lead the design and evolution of our multi-GPU, cross-cloud platforms, driving architecture, reliability, and performance at scale. This role sits at the intersection of DevOps, MLOps, and distributed systems, enabling cutting-edge AI in real-world environments. What … scalable multi-GPU infrastructure across cloud environments (AWS, GCP, etc.) Own architecture and long-term technical direction of model training platforms Drive reliability, performance, and cost-efficiency at scale Define and implement best practices for infrastructure, DevOps, and MLOps across the organization Build and evolve infrastructure-as-code ...