1 to 25 of 92 Performance Tuning Jobs in London

deploying, configuring, and maintaining Red Hat Enterprise Linux and Solaris systems on premises and cloud environments. This includes managing system builds, patching, security hardening, performance tuning, and troubleshooting complex OS level issues. The engineer will oversee lifecycle management for RHEL and Solaris servers, ensuring stability, high availability … Identify opportunities to improve, streamline, or automate operational processes. • Lead incident management activities, including investigation, resolution, and root cause analysis. • Assist with fault diagnosis, performance tuning, and provide recommendations for system improvements. • Manage the full lifecycle of operating systems, including continuous review and deployment of vendor security patches ...

i. This is a hands-on role for a genuinely strong RPG/IBMi engineer who can go beyond coding into system-level understanding, performance, and security. You'll be working on a live, business-critical environment, owning development, enhancement, and support of key applications, with real visibility across … business teams on new functionality Troubleshoot and resolve complex production issues using joblogs, journals, and OS-level tooling Evaluate and improve existing applications (performance, structure, maintainability) Contribute to Agile ceremonies (Show & Tell, sprint delivery, etc.) Produce technical documentation and user guidance Support critical systems, including occasional out-of-hours ...

self-service* Deliver continuous service improvement by developing Infrastructure as Code* Eliminate manual, repetitive, automatable, tactical tasks that are devoid from value* Improve system performance, make effective use of resources, distribute load and reduce latency* Identify SLO’s (Service Level Objectives) to meet availability and latency objectives* Develop … Microsoft Windows Server internals and related technologies* Excellent skills in managing and maintaining Active Directory, DHCP, DNS, LDAP and Kerberos* Extensive experience in hardware performance monitoring and tuning complex low latency systems.* Agile, Site Reliability Engineering (SRE) and DevOps Principles and practices* Exceptional knowledge of scripting and programming ...

Data Factory and Databricks, replacing legacy SSIS pipelines. Identifying opportunities to harden and automate manual steps within the Finance Close workflow Conduct T-SQL performance tuning across on-prem and cloud environments.Conduct T-SQL performance tuning across on-prem and cloud environments. Collaborate with ...

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 ...

business needs. * Support the migration of associated Windows Server estates * Ensure secure, stable and compliant transitions aligned with end of life timelines. * Conduct troubleshooting, performance tuning, and post migration validation work. * Produce clear migration documentation, runbooks, and operational handover materials. * Collaborate with technical leads, infrastructure teams, and wider … later versions (SQL 2022; SQL 2025). * Strong understanding of SQL Server architecture, clustering, HA/DR, AlwaysOn, performance tuning, and security. * Demonstrated ability to analyse large, complex estates and identify hidden/unknown instances. * Experience migrating associated Windows Server platforms (2016/2019). * Ability to work ...

between core systems and the Enterprise Data Warehouse, ensuring accurate and timely reporting Manage and monitor ETL pipelines, identifying and resolving data issues and performance bottlenecks Act as a technical point of contact during financial close periods (monthly, quarterly, year-end) Perform root cause analysis on data issues … cloud-based “Single Source of Truth” data platform Design, develop and maintain ETL workflows using modern tools (e.g. Azure Data Factory, Databricks) Optimise database performance through query tuning, indexing and partitioning strategies Support CI/CD practices using Azure DevOps Produce and maintain technical documentation Provide ...

experienced KDB+ Developer to join the Agency Trading stream of a leading Investment Bank, supporting the Independent Risk Function with innovative, high-performance data solutions. As a key player in the Risk team, you will design, develop, and optimise advanced data platforms built on kdb+. Your work will directly … historical data workflows for low latency and high throughput Collaborate closely with Risk stakeholders to translate complex business requirements into effective technical solutions Lead performance diagnostics, tuning, and troubleshooting of kdb+ systems Drive best practices in coding, testing, and system design while mentoring junior team members Contribute ...

security standards Ingress controllers, service mesh integration Multi-environment strategy (Dev/Test/Prod) Troubleshooting complex production issues Helm/Kustomize-based deployments Performance tuning and resilience engineering OpenLDAP (Enterprise Identity Integration) Installation, configuration and hardening of OpenLDAP Schema design and directory structuring Secure authentication integration (LDAPS … certificates, RBAC mapping) Kubernetes authentication via LDAP Identity federation patterns across CI/CD tooling High availability and replication strategies Troubleshooting directory performance and sync issues Jenkins (CI/CD Architecture & Engineering) Pipeline-as-code (Groovy) Shared libraries and pipeline governance Integration with Kubernetes agents Secure credential management Test ...

security standards Ingress controllers, service mesh integration Multi-environment strategy (Dev/Test/Prod) Troubleshooting complex production issues Helm/Kustomize-based deployments Performance tuning and resilience engineering OpenLDAP (Enterprise Identity Integration) Installation, configuration and hardening of OpenLDAP Schema design and directory structuring Secure authentication integration (LDAPS … certificates, RBAC mapping) Kubernetes authentication via LDAP Identity federation patterns across CI/CD tooling High availability and replication strategies Troubleshooting directory performance and sync issues Jenkins (CI/CD Architecture & Engineering) Pipeline-as-code (Groovy) Shared libraries and pipeline governance Integration with Kubernetes agents Secure credential management Test ...

security standards Ingress controllers, service mesh integration Multi-environment strategy (Dev/Test/Prod) Troubleshooting complex production issues Helm/Kustomize-based deployments Performance tuning and resilience engineering OpenLDAP (Enterprise Identity Integration) Installation, configuration and hardening of OpenLDAP Schema design and directory structuring Secure authentication integration (LDAPS … certificates, RBAC mapping) Kubernetes authentication via LDAP Identity federation patterns across CI/CD tooling High availability and replication strategies Troubleshooting directory performance and sync issues Jenkins (CI/CD Architecture & Engineering) Pipeline-as-code (Groovy) Shared libraries and pipeline governance Integration with Kubernetes agents Secure credential management Test ...

Monitoring & Observability - Own the Datadog APM setup: tracing, alerting, dashboards, log management - Maintain and tune alert channels integrated with Slack - Reduce alert fatigue by tuning thresholds, suppressing false positives, and downgrading non-actionable errors - Be the first responder when something breaks in production Reliability & Incident Response - Investigate and resolve … production incidents end-to-end: detection, root cause analysis, fix, and post-mortem - Handle database performance issues: slow query identification, index creation, query optimization, connection pool tuning - Manage queue system reliability (BullMQ on Redis): concurrency tuning, rate limiting, stalled job handling, autoscaling - Ensure graceful handling of failovers ...

London, UK (Hybrid) Job Type: Contract - Inside IR35 Role Overview We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high-performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale, and close … promoting best practices across the team. Key Responsibilities Design, develop, and maintain kdb+ tick systems, with strong understanding of data organisation, schema design, and performance implications of different architectural approaches. Build and operate solutions handling large-scale, high-frequency datasets, ensuring low latency, high throughput, and efficient memory usage. ...

part of a team) Architect and optimize ETL/ELT pipelines using services such as: DBT, AWS Glue, Lambda, Kinesis, S3, EMR Design high performance Snowflake data models (3NF, dimensional, Data Vault, etc.) Optimize query performance, clustering, micro-partitioning, and resource consumption Work closely with Data Engineers, Analysts … data and engineering teams Translate business needs into scalable data solutions Key Skills/Knowledge Strong grasp of data modelling, data warehousing concepts and performance optimization techniques Hands on expertise with Snowflake (architecture, performance tuning, security, Snowpipe, streams/tasks) Strong experience with AWS cloud data ecosystem ...

seeking an experienced Senior KDB+ Developer to design, develop, and optimize high-performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture, performance tuning at scale, and close collaboration with business stakeholders - particularly within Risk functions - to deliver robust, efficient … maintainable solutions. Responsibilities: Design, develop, and maintain kdb+ tick systems with strong understanding of data organization, schema design, and performance implications. Build and operate solutions handling large-scale, high-frequency datasets, ensuring low latency, high throughput, and efficient memory usage. Analyze and optimize q queries, data models, and ingestion ...

Power BI to augment client decision-making and operational outcomes. Architecture, Governance & Standards Translate business requirements into end-to-end data architecture, balancing performance, cost, security, and maintainability. Apply and advise on security patterns and contribute to governance-by-design. Enforce technical documentation standards, architectural artefacts, and implementation patterns … audiences. Strong relationship-building and stakeholder management in complex client environments. Code Management CI/CD for Fabric items. Git-based workflow. Testing frameworks. Performance tuning patterns. Cost/capacity optimisation. Desirable Skills & Experience Experience across adjacent Microsoft services often paired with Fabric (e.g., Azure Synapse Analytics, Azure ...

Power Query (M), KQL, and Power BI Service Experience with Azure DevOps (CI/CD, version control, deployment) Strong SQL skills (queries, stored procedures, performance tuning) Good understanding of data warehousing and dimensional modelling (e.g. Kimball) Experience working in agile delivery environments Knowledge of secure development practices (DevSecOps ...

security standards. Support Provide 2nd and 3rd line support across Dynamics CRM applications. Manage incidents, service requests, and changes following ITIL processes. Monitor CRM performance and proactively resolve operational issues Skills & Experience Required Essential Proven technical expertise in Dynamics 365 CE configuration and customisation. Hands-on with Power Platform … stakeholder management, communication, and problem-solving skills. Desirable Exposure to Copilot and AI-driven tools. ITIL certification or experience working in ITIL environments. xehkeey Performance tuning and data migration expertise. *Rates depend on experience and client requirements ...

security standards. Support Provide 2nd and 3rd line support across Dynamics CRM applications. Manage incidents, service requests, and changes following ITIL processes. Monitor CRM performance and proactively resolve operational issues Skills & Experience Required Essential Proven technical expertise in Dynamics 365 CE configuration and customisation. Hands-on with Power Platform … stakeholder management, communication, and problem-solving skills. Desirable Exposure to Copilot and AI-driven tools . ITIL certification or experience working in ITIL environments. Performance tuning and data migration expertise. *Rates depend on experience and client requirements ...

critically significant component of our infrastructure that underpins secure authentication across to our customers.This is a rare opportunity to work on a high-performance, low-latency, and highly resilient system at scale, with direct impact on the security and reliability of financial services used globally.What You’ll be doing … ensure robust observability, automated recovery, and zero-downtime deployments via Gitlab pipeline, Terraform and DevSecOps practices.* Drive architectural decisions and mentor engineers in performance tuning, resilient design, and secure coding practices.* Contribute to incident response and postmortems, continuously improving system reliability.What You'll bring:* Experience in managing engineers ...

Jira. * Proven track record of delivering features and projects to deadlines while maintaining high standards of quality and reliability. * Understanding of application and database performance tuning, troubleshooting, and optimization techniques. * Comfortable working in small, collaborative teams and taking initiative in managing development tools, environments, and build processes. * Familiarity … development using HTML5, CSS3, JavaScript, and modern React components to maintain the web applications. * Participate in architectural discussions and propose improvements that enhance system performance, scalability, and maintainability. * Collaborate with Digital Product, Technology, and Marketing teams to define, estimate, and deliver features within sprint timelines. * Participate in code reviews ...

work with stakeholders Additional Desirable Skills Experience with tools such as Ansible, Maven, or Gradle Knowledge of AWS networking and database services Experience with performance tuning and high-availability systems ...

work with stakeholders Additional Desirable Skills Experience with tools such as Ansible, Maven, or Gradle Knowledge of AWS networking and database services Experience with performance tuning and high-availability systems ...

CloudWatch, KMS, and Amazon Linux 2023. DevOps Tools: Terraform, Jenkins, Docker + Groovy pipelines experience. Scripting: Shell, Python, PowerShell, Perl, Java. PostgreSQL admin, performance tuning, HA, replication, backup/DR, Git, Jira, Confluence, ServiceNow. Monitoring tools: Grafana, Prometheus + Alert Manager. Key Tasks: troubleshooting, root cause analysis ...

knowledge of CI/CD, Infrastructure as Code, and automated testing (JUnit, Mockito, integration tests). Experience with SQL and relational databases; understanding of performance tuning and transactionality. Production support experience: monitoring, logging, tracing and incident management. Mindset: self-directed, proactive problem-solver who challenges assumptions rather than ...