1 to 25 of 33 Performance Tuning Jobs in the City of London

based in the UK or US and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities … DevOps, Product, and QA teams to ensure production-grade solutions. Participate in architectural discussions, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 5+ years of experience in Core Java development with a focus ...

streaming workloads Develop and manage dataflows, and semantic models to support specific analytics related business requirements Implement complex transformations, aggregations, and joins ensuring performance, and reliability Implement and apply robust data validations, cleansing, and profiling techniques to ensure data accuracy and consistency across datasets Implement role-based access, data … masking, and compliance protocols Performance tune and optimise jobs and workloads to reduce latency Work collaboratively with analysts and business stakeholders to translate requirements into technical solutions Create, maintain, and update documentation and internal knowledge repository Your Profile Essential skills/knowledge/experience: Experience of programming under Microsoft ...

software engineers to ensure seamless data integration and availability for predictive modeling and business intelligence. Optimize data storage and processing in Azure environments for performance, reliability, and cost-efficiency. Implement best practices for data modeling, governance, and security across all platforms. Troubleshoot and enhance existing pipelines to improve scalability … love to hear from you. Strong technical foundation: Degree in a STEM field (or equivalent experience) with hands-on experience in production environments, emphasizing performance optimization and code quality. Python expertise: Advanced proficiency in Python for data engineering, data wrangling and pipeline development. Cloud Platforms : Hands-on experience working ...

strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex … REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow ...

join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like … software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable ...

strategic customizations. Technical Advisory & Governance: Act as a subject matter expert and technical advisor to clients and internal teams, providing guidance on platform capabilities, performance optimization, security, and scalability. Establish technical governance to ensure solution integrity. Requirement Analysis & Solution Design: Collaborate with business stakeholders to gather and analyze complex … REST, SOAP, JDBC, MID Server). Technical Oversight & Quality Assurance: Provide technical oversight to development teams, ensuring adherence to architectural patterns, coding standards, and performance best practices. Participate in code reviews and ensure solution quality. Prototyping & Demonstrations: Lead the creation of technical prototypes and conduct demonstrations of proposed ServiceNow ...

analytical and operational needs. Collaborate with data analysts, data scientists, and business stakeholders to understand requirements and deliver robust data solutions. Troubleshoot data discrepancies, performance issues, and system errors. Ensure compliance with data security, governance, and regulatory standards. Support and enhance existing data engineering processes and platforms. Essential Skills … Knowledge SQL Server Proficiency: Strong expertise in Microsoft SQL Server and SQL. Skilled in querying, performance tuning, and database optimisation. Data Warehousing & Modelling: In-depth understanding of data warehousing principles and modelling concepts. Experience with designing efficient schemas, including normalisation and denormalisation techniques. ETL/ELT Pipelines: Proven ...

pipelines using Python and PySpark to support data ingestion, transformation, and integration - Develop and optimize distributed data workflows on AWS EMR for high-performance processing of large datasets - Design, implement, and tune Snowflake data warehouses to support analytical workloads and reporting needs - Partner with data scientists, analysts, and product … data integrity, consistency, and accuracy across multiple sources and systems - Automate data workflows and processes to improve efficiency and reduce manual intervention - Monitor pipeline performance, identify bottlenecks, and resolve issues proactively - Apply best practices in CI/CD, version control (e.g., Git), and infrastructure-as-code (e.g., Terraform, CloudFormation ...

ideal candidate will be experienced in integrating diverse internal and external data sources, collaborating with stakeholders, and ensuring the availability of trusted, high-performance datasets for downstream consumers. Responsibilities Design, build, and manage ingestion pipelines in Microsoft Fabric for structured and unstructured data, aligned to the Bronze and Silver … reliable data transfers and integrations. Implement scalable, repeatable processes for ingestion, schema management, validation, and metadata documentation. Ensure all data pipelines meet governance, compliance, performance, and security standards. Continually evaluate and adopt emerging Fabric features including Lakehouse optimisations, Warehouse capabilities, and orchestration improvements to support ongoing advancement ...

Engineer with deep expertise in Power BI and enterprise-scale reporting environments. The ideal candidate will be responsible for designing, optimizing, and maintaining high-performance semantic models, delivering end-to-end BI solutions, and supporting distributed reporting across multiple business domains. Key Responsibilities: Power BI Development & Engineering Build … optimize Power BI Semantic Models for large datasets (4–5GB+). Develop high-performance dashboards using Power BI Desktop & Power BI Service . Write advanced, performance-optimized DAX following best practices. Leverage Power Query (M) for scalable data ingestion and transformation. Perform deep model optimization using Tabular Editor ...

features and technologies. Ensure systems are scalable, resilient, and maintainable. Support & Maintenance Troubleshoot, debug, and resolve Livelink platform and Java application issues. Perform performance, tuning, and optimization of integrations. Provide guidance on content lifecycle and migration strategies. Quality & Governance Apply CI/CD practices using tools like Jenkins ...

Innovation: Stay updated on emerging Java technologies, propose new solutions, and contribute to innovation initiatives. • Troubleshooting: Analyze logs, resolve complex technical issues, and perform performance tuning. • Documentation: Write technical specifications and other documentation for new and existing applications. Qualifications: • Education: Bachelor's degree in Computer Science, Engineering ...

data maps, interface contracts, and non-functional requirements (NFRs). Provide technical leadership during build: review designs, perform architecture spikes, and support troubleshooting and performance tuning. Define CI/CD pipelines for MarTech configurations and integration code; automate testing and deployments where possible. Mentor engineering teams, drive architectural governance ...

practices, and AI technologies. Implement scalable architectures, RESTful services, microservices, and integration layers. Produce clean, maintainable, and well-tested code. Perform debugging, optimization, and performance tuning. Client Engagement Collaborate with clients to gather requirements, define scope, and translate business needs into technical solutions. Present technical concepts clearly ...

processing patterns (CDC, watermarking, upserts) AWS Data Services Amazon S3: data lake architectures, partitioning strategies, lifecycle policies DynamoDB: data modeling, secondary indexes, streams, and performance optimization Amazon Redshift: foundational querying, integrations, and performance considerations AWS Lambda for scalable data processing and orchestration Amazon EventBridge for event-driven … decoupled data pipelines Vector Databases & Embeddings Strong understanding of vector database concepts, indexing strategies, and performance trade-offs Design and implementation of embedding generation pipelines Optimization techniques for semantic search and retrieval accuracy Effective chunking strategies for document ingestion and processing Experience with CockroachDB deployment and management is beneficial ...

Artificial Intelligence (AI) and data architecture within the investment banking domain. The ideal candidate will have deep expertise in designing and implementing scalable, high-performance data platforms using modern technologies such as MongoDB, Redis, Elasticsearch, and other tools that enable fast data storage, querying, and exposure. This role requires … like MongoDB, Redis, Elasticsearch, and other NoSQL/relational systems. Collaborate with business stakeholders, data scientists, and engineering teams to deliver solutions that meet performance, scalability, and compliance requirements. Ensure data provenance, integrity, and security across all layers of the architecture. Drive innovation in AI integration, including model deployment ...

organisations with a strong focus on architecture and enterprise solutions 5+ years as a Technical Architect with hands-on experience in: MongoDB - schema design & performance tuning Redis - caching & high-speed data access Elasticsearch - search & indexing strategies Other modern data technologies for fast storage and retrieval Strong expertise ...

every part of the investment pipeline—from research tooling and data infrastructure to real-time trading systems. Key Responsibilities: Design, develop, and optimize high-performance trading tools and data pipelines using C# and ideally Python Build research platforms that empower quantitative analysts and strategists Integrate and manage large, complex … real-time and batch environments What We’re Looking For: Strong programming experience with C# Solid understanding of software engineering principles, design patterns, and performance tuning Experience in financial markets (equities, futures, FX, etc.) is a plus, but not required Familiarity with data science tools, APIs, and time ...

mission-critical software used by airlines worldwide - powering real-time flight operations, route optimisation, and next-generation cockpit intelligence. You’ll work on high-performance, multi-threaded systems that directly impact global aviation efficiency, fuel optimisation, and safety -contributing to one of the most advanced FMS platforms … real-time data processing for flight planning, scheduling, and air traffic control integration Implement and optimise algorithms for fuel efficiency, route optimisation, and aircraft performance modelling Contribute to multi-threaded, high-performance architectures used in large-scale airline operations Collaborate with system architects, engineers, and aviation domain specialists ...

design to production. Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability. Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management. Data & Integration: Work with PostgreSQL … design resilient data flows. Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery. Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one. Documentation & Developer Experience: Help create clear technical docs ...

such as UiPath , Blue Prism , or Automation Anywhere . Configure and integrate RPA solutions with existing applications and databases. Conduct unit testing, debugging, and performance tuning of bots. Maintenance & Support Monitor and maintain RPA solutions post-deployment. Troubleshoot issues and implement fixes promptly. Update bots to accommodate changes ...

recommend whether to integrate, adapt, or design anew. Produce high-quality design specifications that engineers can implement: threat models, protocol sketches, interface boundaries, performance assumptions, and roll-out considerations. Build proofs-of-concept where useful to validate feasibility, performance, and integration risk (coding is important … protocol concerns , including (but not limited to): Zero-knowledge and applied cryptography Block propagation and networking Consensus and finality trade-offs Latency reduction and performance tuning Communicate trade-offs clearly across functions (Product, Research, Engineering, Platform): help align “where we want to go” with “how we get there ...

Basis expertise. Key Responsibilities: Provide day-to-day administration and support of SAP Basis environments Support and maintain critical SAP environments, ensuring systems stability, performance, and security within a highly regulated setting Monitor SAP systems and interfaces; analyse logs, dumps, and performance Manage system copies, clients, and transport … management (TMS) Perform SAP kernel upgrades, patching, and system upgrades Administer SAP HANA backups, recovery, and performance tuning Support high availability and disaster recovery setups Key Requirements: Expertise with SAP Basis, database, and operating system expertise Experience with system monitoring, troubleshooting, upgrades SAP Basis SC Cleared (essential) Please ...

trading workloads. This role offers the opportunity to work on innovative, high-impact projects at the intersection of cloud, open-source, and high-performance computing. The Role: Design and develop scalable data orchestration services across cloud and on-prem environments. Create unified platform abstractions to streamline data access across … diverse storage technologies. Integrate open-source and vendor storage solutions through rapid prototyping and engineering. Optimise storage performance and efficiency across large-scale infrastructure. Collaborate across engineering functions to deliver robust end-to-end platform capabilities. Own operational responsibilities: troubleshooting, performance tuning, and user support. Your Background ...

elegant UI engineering and wants to build products that matter at millisecond scale. This is your chance to work at the core of high-performance trading tech, crafting ultra-fast, hyper-polished interfaces used by some of the sharpest and most demanding minds in global finance. What … shape next-generation trading tools Designing and evolving front-end architectures for real-time data and complex visualisations Working in an environment where craftsmanship, performance, and code quality are taken seriously — every single day Tech Stack Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar state management) Tooling: Webpack ...