1 to 25 of 50 Permanent Performance Tuning Jobs in 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 ...

house data team. This role is SQL-first and suited to someone who enjoys working day-to-day with complex SQL Server environments - designing, tuning and troubleshooting data solutions in a financial services context. Key responsibilities Developing and optimising complex SQL Server solutions (T-SQL, stored procedures, indexing, performance tuning) Working with large, business-critical datasets Supporting and enhancing ETL and batch processes Investigating and resolving performance and data issues in production Collaborating closely with analysts and stakeholders to translate requirements into robust SQL solutions Essential experience Strong, hands-on SQL Server development experience Proven performance ...

experience configuring, administering, and supporting Solace PubSub+ environments. You will take ownership of the full lifecycle of the messaging platform, from deploying brokers and tuning performance to managing access controls, optimising resources, and ensuring reliable application connectivity across the estate. This role suits someone who enjoys being close … hands-on experience configuring, administering, and troubleshooting Solace PubSub+ Strong understanding of event-driven and messaging principles Good knowledge of networking concepts, platform performance tuning, and cloud deployment patterns Ability to analyse issues across application, network, and infrastructure layers Clear communication skills and the ability to collaborate across ...

experience configuring, administering, and supporting Solace PubSub+ environments. You will take ownership of the full lifecycle of the messaging platform, from deploying brokers and tuning performance to managing access controls, optimising resources, and ensuring reliable application connectivity across the estate. This role suits someone who enjoys being close … hands-on experience configuring, administering, and troubleshooting Solace PubSub+ • Strong understanding of event-driven and messaging principles • Good knowledge of networking concepts, platform performance tuning, and cloud deployment patterns • Ability to analyse issues across application, network, and infrastructure layers • Clear communication skills and the ability to collaborate across ...

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 ...

life of millions of University students across the globe. In this role, you will apply your Software Engineering experience to enhance system performance and reliability, as well as building internal systems and capabilities that eliminate manual work through automation. You'll be joining our Platforms teams with globally-dispersed … logging systems to identify and respond to incidents Ensure scalability and efficiency of cloud infrastructure and systems to handle traffic and data growth Conduct performance tests to identify and remediate bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review ...

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 ...

Power BI, Azure, and Confluent technologies. You will lead platform strategy, administration, and integration to support scalable analytics and data engineering solutions. Responsibilities include performance optimization, governance, automation, and enabling secure, reliable data flows. This role requires strong leadership, cross-functional collaboration, and hands-on technical proficiency. Your role … prem environments. You will lead platform strategy and operations for technologies including Snowflake, SQL Server, Power BI, Azure, and Confluent, ensuring high availability, performance, and scalability. You will collaborate with cross-functional teams to design and implement platform solutions that support data engineering, analytics, and business intelligence initiatives. Your ...

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 ...

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 ...

Agile delivery squads with APEX devs, data engineers, integration specialists and business SMEs. Essential Skills Strong Oracle APEX development capability (apps, forms, processes, security, performance tuning). Hands-on experience with Oracle Analytics Cloud (OAC dashboards, DV, RPD/semantic modelling). Experience with Autonomous Data Warehouse … Oracle Fusion data structures. Data modelling, ETL/ELT, SQL tuning and general analytics engineering skillset. Proven ability to collaborate with AI teams, data scientists or ML engineers in shared workloads. UK Citizen with SC (minimum). Desirable OCI and OIC experience. Exposure to ML/AI concepts ...

trading activity. The successful candidate will work across the full software development lifecycle, contributing to the design, build, deployment, and optimisation of highly scalable, performance-critical applications. Key Responsibilities Build, test, and enhance high-performance trading systems using C++ and Python Translate quantitative models and trading logic into … front-office trading teams Improve market data ingestion, exchange connectivity, and real-time data flows Contribute to distributed systems, low-latency communication, and performance tuning initiatives Take part in design discussions, code reviews, profiling, and CI/CD improvements Gain hands-on exposure to algorithmic trading infrastructure, market ...

Join OCI to design and deliver cloud-scale DDoS protection as part of our edge security platform. You'll design and ship high-performance detection and mitigation systems, automate operations end-to-end, and help define the technical foundation for customer-facing DDoS capabilities. Basic qualifications 6+ years building … Java/Python/C Rust/Go Strong preference for Java for control-plane/services. Strong systems design skills: concurrency, memory management, performance tuning, API design, and distributed systems fundamentals. Experience with DevOps at scale: CI/CD, automated testing, canarying, rollout/rollback, and configuration ...

Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global edge. …/Python/C Rust/Go (strong preference for Java for control-plane/services). Deep systems design expertise: concurrency, memory management, performance tuning, API design, consistency models, and distributed systems fundamentals. Proven DevOps leadership at scale: CI/CD, automated testing, canarying, rollout/rollback ...

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 ...

services such as EC2, S3, and VPC. Troubleshoot and resolve complex infrastructure issues independently. Automate cloud operations using Terraform, CloudFormation, Python, and Bash. Monitor performance and costs, implementing optimizations as needed. Collaborate with development teams to support application deployment and operations. Assess new cloud technologies to improve infrastructure reliability … management tools (Ansible, Terraform). Experience with container technologies such as Docker, ECS, and Kubernetes. Knowledge of Windows and Linux system administration. Familiarity with performance tuning and cost management in the cloud. Agile development experience and strong communication skills. This position offers the chance to play ...

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 ...

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 ...

Senior C++ Developer High-Performance Messaging Systems £180,000£200,000 | London | Hybrid Ncounter is supporting the growth of a high-performing engineering team responsible for building and evolving one of the most sophisticated messaging platforms in the capital markets space. This is a senior-level C++ role focused … performance, reliability, and scale, sitting at the heart of a globally distributed trading environment. Youll take ownership of a large, in-house C++ codebase that underpins hundreds of applications and mission-critical data flows. The work is deeply technical, solving problems around low latency, throughput, concurrency, and resilience, while ...

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 ...

pipelines and integrations using Snowflake, Python, SQL, and C#. Skills and experience required: Strong proficiency in SQL, Python, and C# (including query optimisation and performance tuning). Experience with data modelling, ETL pipelines, and data integration. Proven ability to work directly with stakeholders and data users to understand ...

methods (e.g., GPO, MDM). Be a Proactive Technical Advisor: Serve as the go-to expert for PAB best practices, advanced feature utilization, and performance tuning, actively monitoring environments to pre-emptively identify, recommend, and resolve potential issues or areas for security posture improvement. Resolve Complex Escalations ...

issues using logs and metrics A collaborative mindset and an ownership-driven approach to work Nice to Have (Not Required) Deeper Go knowledge (concurrency, performance tuning) Experience with gRPC, Protobuf, or event-driven systems Exposure to graph databases, geospatial queries, or search systems Familiarity with observability tooling … monitoring Awareness of cloud cost optimisation Interest in learning more about platform, performance, or system design What Matters to Us We’re looking for people who are genuinely interested in what we’re building and want to grow with the company over the long term. Curiosity, care for quality ...

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 ...