20 of 20 Performance Optimisation Jobs in the City of London

chance to build something category-defining, this could be your role. About the company This business is a truth-first ad measurement and performance optimisation platform built for performance marketers who need attribution they can trust and act on. The platform connects ad platform APIs with first … They are already working with impressive early-stage logos across financial services (including global trading platforms and crypto exchanges), ecommerce, and telco. Measurement and performance optimisation is an evergreen, global problem now being reshaped by AI and the founders are building toward market leadership. About the role ...

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 ...

integrate into the Arrive Global Platform, we are looking for a Staff Engineer. We are transitioning from a established PHP foundation to a high-performance, modern ecosystem built on Java and Kotlin . We need a technical heavyweight who can navigate our roots while architecting the future of global … platform while collaborating closely with engineers, product teams, and stakeholders. Your work will include: Leading architecture discussions and technical decision-making Improving performance, scalability, and reliability of our platform Diagnosing complex issues across local, pre-release, and production environments Driving engineering best practices across DevSecOps, CI/ ...

documentation, lineage, and observability Lead code reviews and mentor data & analytics engineers Drive CI/CD and infrastructure-as-code adoption Own platform reliability, performance optimisation, and cost efficiency Establish SLAs for data freshness and quality 🤝 Cross-Functional Impact Partner with Data Science, Product, and Engineering leadership Translate … reliable data platform powering AI and analytics growth Reduced ML time-to-production High levels of data quality, observability, and governance maturity Improved cost-performance efficiency across the data stack A strong, growing data engineering capability within the team This is a high-impact leadership role within a forward ...

that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ASP.NET ecosystem, developing high-performance, reliable, and maintainable … applications. Key Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems ...

leader within the Surveillance Technology team. Provide expert oversight across analysis, architecture, design and delivery of complex systems. Architect, build, and evolve scalable, high-performance solutions for Communications Surveillance and Record Keeping. Lead engineering standards: architecture reviews, vendor assessments, impact analysis, and automated testing. Mentor and develop engineering talent … Record Keeping. Translate complex technical concepts for both technical and non-technical stakeholders. Support agile planning, estimation and prioritisation. Identify opportunities for system optimisation, refactoring, and alignment to target architectures. Manage technical risks, issues and dependencies. Benchmark against peer organisations to ensure alignment with regulatory and industry expectations. Experience ...

models across Snowflake, Databricks, and cloud environments (AWS/GCP). Working closely with Data Science, Product, and Analytics teams, youll ensure reliable, high-performance data flows that power AI and analytics products. Alongside deep technical delivery, youll be responsible for leading the junior engineers and near shore partners … architectural direction and best practices. Key Responsibilities Design and maintain scalable data architectures across Snowflake and Databricks Lead schema design, dimensional modelling, and SQL performance optimisation Build robust ETL/ELT pipelines Develop resilient API ingestion workflows Implement data quality frameworks and enforce data contracts Build CI/ ...

CodePipeline.? Develop and maintain Software-in-the-Loop and Hardware-in-the-Loop test environments, including automated deployment across multiple platforms.? Integrate performance testing techniques across multiple types of simulation (e.g. Gazebo, rosbag-based workflows).? Collaborate with hardware engineers, systems architects and AI/ML specialists to integrate … embedded software and test frameworks into the overall system.? Participate in code reviews, performance optimisation and comprehensive testing (unit, integration and system level) to maintain high quality standards.? Develop, implement and execute test strategies and verification activities for safety-critical software, including static and dynamic code analysis using ...

experience with PyTorch Experience with Hugging Face transformers or similar frameworks Solid experience deploying ML solutions on AWS Understanding of MLOps, model deployment and performance optimisation Ability to work in a consultancy environment with multiple clients Desirable: Experience with LLMs, RAG pipelines or generative AI applications Knowledge ...

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 ...

enabled capabilities across the mobile platform. In this role, you will: Lead the design, development, and maintenance of advanced iOS applications, ensuring high performance, quality, and responsiveness across Expedia Group’s product suite. Architect and implement robust, scalable system and API designs, including effective data modelling to support complex … maintainable iOS mobile architectures, leveraging common design patterns such as MVVM or VIPER Advanced proficiency in SwiftUI - Skilled in multi-threading, concurrency, and performance optimisation Prior experience in the search domain or travel industry, such as building or scaling search, discovery in consumer mobile apps. Experience establishing technical ...

Data Engineering before moving into Product Ownership Technical proficiency:Familiarity with Azure services (e.g., Data Lake, Synapse, Fabric) and Databricks for data engineering, analytics, performance optimisation, and governance Development Framework experience within Microsoft Stack Technologies Experience with implementing and optimising scalable cloud infrastructure is highly valued Backlog management ...

Fabric etc) before moving into Product Ownership Technical proficiency:Familiarity with Azure services (e.g., Data Lake, Synapse, Fabric) and Databricks for data engineering, analytics, performance optimisation, and governance Development Framework experience within Microsoft Stack Technologies Experience with implementing and optimising scalable cloud infrastructure is highly valued Backlog management ...

Design and build scalable data pipelines and lakehouse/warehouse models on Microsoft Fabric (OneLake, Lakehouse, Data Warehouse, Data Factory). Implement medallion architectures, performance optimisation, and cost management for analytics and AI workloads. Define and enforce data engineering standards, governance, and security in an enterprise environment. Mentor ...

commercial stakeholders to ensure seamless campaign execution across CTV, OLV, and Display . Key Responsibilities Manage and grow relationships with premium publishers, overseeing onboarding, performance optimisation, and long‐term account health. Conduct daily supply checks and provide clear insights to internal and external stakeholders. Support campaign setup, trafficking … optimisation, and reporting across video and display formats. Assist with pre‐sales tasks including forecasting, audience targeting, and curated site lists. Ideal Candidate 1–3 years’ experience in digital media operations, account management, ad ops, or programmatic trading. Experience working with a DSP or SSP is essential (e.g., DV360 ...

Full Stack Delivery: End-to-end design, development, and deployment of scalable web applications. System Architecture: Application of complex architecture patterns to support high-performance server-side logic. UI Development: Construction of responsive interfaces and layouts using modern JavaScript frameworks. API & Microservices: Development of RESTful services utilizing the Java … Boot ecosystem. Data Management: Design and maintenance of SQL/NoSQL databases and ORM integration. Quality Control: Execution of unit testing, code reviews, and performance optimization to ensure high standards. Essential Skills Core Languages: Advanced proficiency in Java, JavaScript, HTML, and CSS. Back-End: Extensive experience with Java, Spring ...

based infrastructure used by media companies to deliver live and on-demand video at scale , helping operators reduce delivery costs while improving reliability and performance across their streaming services. Having already secured customers across multiple European markets, the business is now investing in building a presence … media companies, or digital video platforms A track record of closing enterprise deals involving technical stakeholders Confidence discussing topics such as streaming architecture, scalability, performance optimisation, and video delivery Motivation to build a territory rather than step into an established sales patch ...

Marketing, Brand, and Regional teams. Act as the primary external-facing marketing lead for strategic partners, driving co-marketing planning, launch execution, and ongoing performance optimization. Retail & Launch Amplification (Partnered Ownership) Partner closely with the Retail team toamplify international retail launches through strategic partners and co-marketing programs. Identify ...

Ensure pipelines are auditable, lineage-aware, idempotent, and resilient in regulated environments. Implement robust data quality controls including testing, validation, monitoring, and alerting. Drive performance optimization across Spark and Snowflake workloads. Partner with Product, Engineering, DevOps, and Regulatory teams to translate requirements into scalable technical designs. Improve engineering standards … your partner, and your child(ren) Employee Assistance Program Enhanced parental leave (maternity & paternity) Professional qualification sponsorship Accelerated career progression based on performance, not tenure Holiday entitlement increases with tenure Flexible hours with core collaboration time Paid volunteering leave Gym & fitness discounts Quarterly socials, and office snacks & drinks Interest ...

. Designing and maintaining efficient data pipelines and vector storage solutions using MongoDB Atlas Vector Search. Fine-tuning LLMs on custom datasets to enhance performance for specialized tasks related to our documentation and user support. Collaborating with our YOLO development team to explore and build innovative multi-modal solutions. … full RAG pipeline, including vector embeddings , rerankers , and data indexing in databases like MongoDB. Practical knowledge of LLM fine-tuning, prompt engineering, and performance optimization. Familiarity with MLOps principles and tools, including CI/CD with GitHub Actions . A strong interest in computer vision and an understanding ...