1 to 25 of 124 Performance Optimisation Jobs in London

that power enterprise-grade SaaS and analytics solutions, primarily within the insurance domain. Working in an agile, cloud-first environment, you will develop high-performance microservices, optimise database performance, implement robust security protocols, and contribute to architectural decisions that support scalable, resilient systems. This role offers the opportunity … third-party integrations Develop microservices aligned to modern architecture patterns Implement business logic, validation layers and data processing components Ensure optimal database performance across relational and non-relational systems Implement modern authentication and authorisation frameworks including OAuth2, SAML and JWT Develop secure, testable and reusable code aligned to best ...

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 ...

would be beneficial. Key Responsibilities: Lead front-end development across LibertyLondon.com (Salesforce Commerce Cloud) and the Fabrics site (WordPress), ensuring high standards of quality, performance, and maintainability. Translate design systems, wireframes, and high-fidelity designs into robust, scalable, and accessible front-end solutions. Own and influence front-end architectural … discovery and planning process. Design, build, and deploy MVT and A/B complex experiments using Dynamic Yield, collaborating with analytics and optimisation teams to improve conversion and usability. Support HTML email development, ensuring consistency, accessibility, and responsiveness across clients and devices. Champion front-end best practices, including performance ...

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 ...

Doing Hands-on development using SQL, DBT, and Snowflake Implementing, refactoring, and optimising Snowflake data models Creating and maintaining data assets, ensuring performance, quality, and reliability Updating consumers and reviewing code to maintain standards Working within structured project tracking tools (Asana/Jira) Delivering approximately 50 refactorings/migrations … Strong experience in SQL, DBT, and Snowflake Familiarity with dimensional modelling (Kimball methodology preferred) Understanding of building models for large stakeholder groups Experience with performance optimisation, data quality, and query/resource efficiency Comfortable working in a collaborative, fast-moving environment with a growth mindset Experience with startups ...

code reviews, architecture discussions, and system design decisions. Troubleshoot and resolve complex technical issues across the full stack. Ensure software security, scalability, and performance are maintained at all times. Keep abreast of emerging technologies and industry trends to inform strategic decisions. Skills and Experience Minimum 8 years of commercial … orchestration tools such as Docker and Kubernetes. Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). Knowledge of front-end performance optimisation and accessibility standards. Exposure to machine learning pipelines or data engineering workflows. Prior experience working in startup environments or high-growth technology companies. ...

mobile, and frontend teams. What You’ll Work On Designing and improving backend services that power web + mobile applications Building and maintaining high‐performance APIs and distributed microservices Solving problems around scalability, reliability, security, and automation Working with modern API protocols including GraphQL and gRPC Enhancing the platform … Building APIs for high‐scale consumer or B2B products Working with message queues like Kafka, RabbitMQ, NSQ, or Pulsar Integrating external APIs/services Performance optimisation & working under performance budgets Interest or experience in cryptocurrencies, Web3, or digital assets Open‐source contributions or tech blogs/talks ...

research datasets Collaborate with scientists, bioinformaticians, and data teams to translate research needs into software solutions Contribute to cloud infrastructure, system architecture, and performance optimisation Ensure high-quality code, testing, and CI/CD best practices Mentor junior engineers and support technical decision-making Required Skills & Experience Strong ...

best practice at scale Drive content strategy with a focus on high-intent, technical and product-led content Conduct keyword research, content briefs, and performance optimisation Monitor performance, report on impact, and iterate based on data What we’re looking for Proven experience as an SEO Manager ...

team's model library - working both individually and collaboratively. Providing leadership in areas such as object modelling & interface design, automated testing & refactoring and performance optimisation. Provide support to Trading & Origination on model usage and behaviour. Leverage the teams cross-asset expertise to connect business locations, helping to identify synergies ...

developing data models and ETL processes; to driving value through dashboards or business applications. Integrating AI tools and LLMs to unlock valuable insights, optimise performance, and automate business processes will also be a part of this role. We’re looking for a high achiever that will be seen … transformation, and visualisation Develop and optimise data models, ETL processes, Workflows and dashboards within the platform Provide best practices for analytics pipelines, integration strategies, performance optimisation and data governance and AI readiness Leverage AI capabilities within the platform and integrate external AI tools and LLMs to enhance data ...

Data Factory). Experience designing and managing cloud data platforms (Snowflake essential; AWS/Azure/GCP desirable). Solid data modelling knowledge and performance optimisation skills. Awareness of data governance, security, and regulatory compliance . Ability to work closely with technical and business teams to deliver impactful ...

trading. Following the recent acquisition of a major energy trading and technology business, the firm has significantly expanded its capabilities in renewable power optimisation, analytics, and physical gas trading across international markets. They are now hiring a Senior Data Engineer to join their Technology Data, AI & UX team … working directly with front-office stakeholders and translating trading requirements into robust data solutions. What You’ll Be Doing Building and maintaining high-performance data pipelines ingesting structured and unstructured datasets from a variety of internal and external sources. Developing ingestion processes including scrapers, ETL pipelines, crawlers, streaming jobs ...

client is looking for an experienced ML Infrastructure Engineer to support the deployment, optimisation and scaling of advanced machine learning models in production environments. This role sits at the intersection of research and engineering, focused on ensuring models are reliably transitioned from experimentation through to large-scale deployment. … will work closely with research and platform teams to build and maintain high-performance inference systems, improve deployment processes and help drive infrastructure improvements that enable faster model iteration and release cycles. This is a strong opportunity to work on technically complex challenges within a fast-moving and highly ...

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 ...

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 ...

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 ...

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. Youll 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, wed love to hear from you. The Role Ultra-Low Latency Engineering Develop ...

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’ll 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’d love to hear from you. The Role Ultra-Low Latency Engineering ...

pure PM role — we need someone who genuinely understands code, can earn the trust of engineers, and can hold a technical conversation about architecture, performance, and trade-offs. You will take ownership of a growing portfolio of in-house software platforms used across all businesses connected to PEN Group. … full production with real user load Cloud or serverless deployment experience (AWS, GCP, Azure, or Vercel/similar) Database schema design and query performance optimisation Familiarity with AI/ML tooling or LLM integrations in production systems SaaS, CRM, or enterprise platform experience Agile or Scrum certification (though ...

provide innovative solutions to complex problems Support continuous improvement of data architecture and processes Key Requirements Strong experience in SQL for data manipulation and performance optimisation Hands-on experience with Power BI for dashboard development and reporting Proficiency in programming languages such as Python or R Experience ...

including Azure Databricks, Azure Data Lake Storage, and Azure Data Factory. Advanced proficiency in SQL, Python, and Spark (PySpark), with a strong focus on performance optimization and distributed processing. Proven experience in CI/CD practices using industry-standard tools (e.g., GitHub Actions, Azure DevOps). Strong understanding ...

join their Flight Management System (FMS) engineering team. This team builds mission‐critical software used by airlines worldwide - powering real‐time flight operations, route optimisation, and next‐generation cockpit intelligence. In this role, you’ll work primarily on high‐performance C++ systems (80%), with additional exposure to Angular … frontend development (20%), contributing to one of the most advanced FMS platforms in the industry. Your work will directly impact global aviation efficiency, fuel optimisation, and operational decision‐making. Responsibilities Design and develop C++ applications for core Flight Management System components Build high‐performance, multi‐threaded backend services ...

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/ ...

Level Shopify Developer (Fully Remote) About Us We are a fast-growing/well established digital agency delivering high-performance eCommerce solutions for ambitious brands across DTC, retail, and lifestyle sectors. Our clients include scaling startups and established high street brands , giving our team exposure to recognised names … fast-growing eCommerce disruptors. Youll play a key role in translating design and UX requirements into responsive, high-quality Shopify themes and features balancing performance, scalability, and clean code standards. Key Responsibilities Develop, customise, and maintain Shopify and Shopify Plus storefronts Build custom themes using Liquid, HTML, CSS/ ...