16 of 16 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 ...

experience in architecting, developing, and optimising large scale E-commerce platforms. The right candidate should have good skills in Magento 2 custom module development, performance tuning, and complex third-party integrations, good experience in managing end to end project life cycles, including requirement analysis, sprint planning, and release … best practice implementation across multi-store and multi-region setups, and collaborating closely with cross functional teams to deliver scalable, secure, and high-performance solutions Key Responsibilities: Own solution architecture: Design scalable Magento 2/Adobe Commerce architectures (B2C/B2B), define module boundaries, integration patterns, and data flows ...

database systems, including both vendor-supplied and internally developed solutions Design and implement tactical and strategic database solutions with a focus on scalability, availability, performance, and resilience Proactively monitor the SQL Server estate to ensure high availability and optimal performance Provide operational support to internal stakeholders, resolving incidents … within agreed service levels Review database changes produced by development teams, ensuring suitability, security, and performance best practice Administer, maintain, and monitor database platforms with a strong focus on security and compliance Implement and maintain monitoring, alerting, backup, and recovery processes Contribute to continuous improvement initiatives across DevOps ...

PySpark, EMR, and Glue. Legacy Modernisation: Architect the conversion of SAS Base/Macros into modular, testable Python code using SAS2PY and manual refactoring. Performance Tuning: Optimise Spark execution (partitioning, shuffling, caching) to ensure cost-efficient processing of massive financial datasets. Quality & Governance: Implement rigorous CI/ ...

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 ...

capabilities with broader business objectives. Key Responsibilities Lead and deliver end-to-end data integration initiatives across the organisation. Design and implement scalable, high-performance data pipelines and workflows. Integrate data from multiple disparate sources into a unified and reliable data platform. Collaborate with business and technical stakeholders … Develop and implement data strategies aligned with organisational goals. Ensure data quality, consistency, and governance across all integration processes. Optimise existing data workflows for performance, scalability, and cost-efficiency. Support the adoption of modern data platforms and cloud-based solutions. Contribute to CI/CD practices for data engineering ...

back end) version 11 onwards Understanding of data security and compliance, including ISO27001 or secure coding practices SQL Server development skills (stored procedures, triggers, performance tuning) Experience with SSRS reporting Exposure to IIS, HTML, CSS, or web-based systems ...

back end) version 11 onwards Understanding of data security and compliance, including ISO27001 or secure coding practices SQL Server development skills (stored procedures, triggers, performance tuning) Experience with SSRS reporting Exposure to IIS, HTML, CSS, or web-based systems ...

serves as the primary desktop operating system, and many core infrastructure services are delivered through Windows Server platforms. This role is key to ensuring performance, reliability, and standardisation across the Windows estate. The successful candidate will work to improve, automate, and optimise the infrastructure environment, contributing to deployment strategy … with global technology teams on deployments, issue resolution, and new initiatives Develop and maintain centrally managed automation scripts and repositories Monitor and optimise hardware performance across physical and virtual environments Contribute to documentation, process improvement, and infrastructure design Required Experience & Skills Advanced experience with Microsoft Windows 10/ ...

business APIs used globally. This role is ideal for someone who thrives in fast-paced fintech environments and is passionate about clean architecture, system performance, and secure engineering practices. Key Responsibilities Design and develop backend services and APIs with a focus on performance, maintainability, and security. Deliver … experience (TypeScript/Javascript). Professional Golang development experience. Strong GraphQL experience, including schemas, resolvers, and high-volume queries. Deep knowledge of PostgreSQL, including performance tuning and relational design. Hands-on experience with Redis for caching, pub/sub, or distributed systems. Fintech experience is a MUST — ideally ...

traditional, infrastructure-heavy SRE; they need a Senior Java Developer who has recently transitioned into the SRE space. My client operates high-performance trading platforms for over 340,000 global users. They need an engineer who can "get under the hood" of a Java codebase to build, debug … team to champion reliability patterns. Complex Challenges: You'll work with high-throughput, low-latency trading operations that demand zero downtime, focusing on JVM performance tuning and message-driven systems. The Essentials The Foundation: 5+ years of Java development experience with a deep understanding of JVM internals. ...

Proven experience in a technical support, site reliability, or escalations engineering role. Proven experience integrating with multiple external APIs. Experience with database design and performance tuning, particularly with PostgreSQL. Experience designing and maintaining infrastructure with AWS, GCP, or Heroku. Experience with testing frameworks like Rspec. Experience with high ...

Graph. - Solid experience with C# and .NET Framework for backend and integration development. - Hands-on experience administering SharePoint on-prem environments, including patching, upgrades, performance tuning, and troubleshooting. Sharepoint Developer & Administrator In accordance with the Employment Agencies and Employment Businesses Regulations 2003, this position is advertised based upon ...

Implement and maintain ProjectWise Managed Workspaces (Configuration Settings Blocks, imports, dynamic frameworks), align MicroStation/verticals configurations per contract, and troubleshoot workspace resolution issues. Performance & file transfer optimization: Configure/maintain Caching Servers and storage areas; tune Delta File Transfer, compression, streaming, and client caching for distributed teams. Standards … resolve managed workspace resolution/pathing issues. Security design: Simplify permission models, standardize role templates, and prevent inheritance conflicts across multiple client projects. Performance tuning: Deploy caching/storage areas, enable/tune DFT, compression, and streaming, and set client caching policies. Governance & documentation: Map ISO 19650 states ...

workflows from Palantir Foundry to a scalable Databricks Lakehouse architecture. The successful candidate will provide architectural leadership and technical direction, ensuring data integrity, governance, performance, and long-term platform sustainability. You will collaborate closely with data engineering, DevOps, and business stakeholders to modernize the data platform, establish best practices … deliver a secure and high-performance migration. Responsibilities Define and execute the end-to-end migration roadmap from Palantir Foundry to Databricks, including target architecture, data models, security, and governance frameworks. Analyze existing Foundry pipelines, datasets, and ontologies, and redesign them into scalable Databricks (Delta Lake) ETL/ ...

deep hands-on RPG development with technical leadership, solution ownership, and governance of mission-critical core banking systems. The Tech Lead will ensure stability, performance, security, and regulatory compliance of core banking applications while mentoring developers and partnering closely with business, vendor, and operations teams. Key Responsibilities Technical Leadership … development practices, and system governance for RPG and IBM i applications. Review and approve technical designs, RPG code, and database changes. Ensure solutions meet performance, availability, security, and audit requirements. Lead root cause analysis for complex production issues and ensure long-term fixes. Development & Delivery Act as a hands ...