1 to 25 of 92 Performance Tuning Jobs in London

data-driven workflows is advantageous Key Responsibilities Design, develop, and maintain full stack applications using React JS , C#.NET Core , and supporting technologies. Build high-performance backend services, RESTful APIs, and microservices with focus on scalability, maintainability, and resilience. Develop responsive, modular, and accessible UI components using React … driven and distributed system designs using technologies such as Kafka, Event Hub, or similar. Drive engineering best practices: code reviews, unit/integration testing, performance tuning, documentation, security scanning Contribute to cloud migration and modernization initiatives, especially in Azure or AWS environments. Mentor junior developers and collaborate within ...

data-driven workflows is advantageous Key Responsibilities Design, develop, and maintain full stack applications using React JS , C#.NET Core , and supporting technologies. Build high-performance backend services, RESTful APIs, and microservices with focus on scalability, maintainability, and resilience. Develop responsive, modular, and accessible UI components using React … driven and distributed system designs using technologies such as Kafka, Event Hub, or similar. Drive engineering best practices: code reviews, unit/integration testing, performance tuning, documentation, security scanning Contribute to cloud migration and modernization initiatives, especially in Azure or AWS environments. Mentor junior developers and collaborate within ...

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 ...

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 ...

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. Performance tuning and data migration expertise. *Rates depend on experience and client requirements ...

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 ...

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 ...

integrations (REST, SOAP, OAuth, SQL, message queues). Basic understanding of CSS, JavaScript, and relational databases (SQL Server, Oracle). Knowledge of application security, performance tuning, and scalable app design. Job Description: Mandatory Skills: OutSystems OutSystems Developer (Low-Code Orchestration) Role Overview The OutSystems Developer focuses on building … Design workflow orchestrations, process automation, and data models. Develop logic, integrations, and reusable UI patterns and modules. Implement role-based access, security configurations, and performance optimisations. 2. Integration & API Management Integrate with backend systems (REST/SOAP APIs, databases, SAP, CRM). Build and maintain integrations ensuring reliability ...

Role Overview The Senior Backend Engineer designs, delivers, and supports this transport - tech customers cloud platforms, with a strong focus on high-performance PostgreSQL databases and resilient AWS-native backend systems. The role spans full lifecycle delivery, from requirements and design to implementation, testing, and ongoing support. This … narrow set of tasks you’re able to drive all aspects of a solution – so more rewarding and interesting. Key Responsibilities Core PostgreSQL Architecture & Performance – Design, optimise, and maintain high-performance, reliable, and supportable PostgreSQL databases. Advanced SQL – Develop and refine complex, performant SQL and database objects. Backend ...

play a key part in maintaining, optimising, and scaling critical systems. You’ll collaborate closely with development and operations teams to ensure high availability, performance, and security across the environment. Key Responsibilities Manage and maintain server infrastructure (Linux/Windows environments) Support and optimise cloud platforms, particularly AWS Implement … maintain CI/CD pipelines Monitor system performance, availability, and security Troubleshoot complex infrastructure and networking issues Automate routine tasks using scripting and command-line tools Support deployments and environment configuration Key Skills & Experience Proven experience as a System Administrator or similar role Strong knowledge ...

Server queries, stored procedures, and data processing logic Design and build backend services in Python or C# Modernise legacy platforms and improve system performance Build and maintain AWS-hosted services and APIs Collaborate with distributed engineering and product teams Top Skills Required Advanced SQL Server expertise (performance tuning ...

built on large SQL Server data estates, making strong SQL expertise non-negotiable. You will play a key role in modernising core systems, improving performance and reliability, and delivering scalable services for the next generation of our platform. This role is ideal for engineers who can work confidently across … implement backend services using modern programming languages (Python or C#) Support and enhance existing legacy platforms, identifying opportunities for iterative modernisation Improve query performance through indexing strategies, query optimisation, and data processing efficiency Enhance platform reliability through automation, monitoring, and operational improvements Build and maintain services deployed within ...

using REST/SOAP APIs and external services Develop reusable components, UI patterns, and application logic Support testing, deployment, and environment promotion activities Troubleshoot performance issues and support optimisation across applications Collaborate with cross-functional teams on delivery, releases, and hypercare Contribute to documentation, governance, and best practice standards … APIs, OAuth, SQL) Good understanding of relational databases (SQL Server or Oracle) Knowledge of JavaScript and CSS for UI customisation Understanding of application security, performance tuning, and scalable design principles Desirable Experience OutSystems certifications (Associate, Professional, Tech Lead) Exposure to CI/CD pipelines and DevOps practices Experience ...

hands-on engineering position where you will design, develop and optimise backend services and data pipelines. You will contribute to technical direction, improve system performance and ensure solutions are robust, maintainable and secure. The environment is highly collaborative, suited to engineers who enjoy solving complex problems and taking ownership … consultative, solutions-focused manner Nice to Have: Experience with data intelligence platforms (DataWalk, Palantir, Quantexa etc.) Linux experience, including scripting, debugging and system performance tuning Exposure to AWS or Azure environments Background working within secure, regulated or public sector environments This opportunity offers the chance to work ...

Microsoft Graph. SharePoint Administration & Operations Administer both SharePoint SE (on-prem) and SharePoint Online environments. Manage updates, cumulative patches and platform maintenance. Monitor performance, availability, capacity and reliability. Oversee site collections, permissions, authentication, service applications and governance. Support backup, restore and disaster recovery processes. Troubleshoot complex cloud … React, HTML5, CSS3. Strong REST API and Microsoft Graph integration experience. Solid C#/.NET framework experience. Deep knowledge of SharePoint on-prem administration, performance tuning, patching and troubleshooting. Experience with BCS and creating External Content Types. Strong SQL Server skills. Understanding of authentication, permissions, governance and security ...

frameworks * Experienced with CI/CD and DevOps pipelines (GitLab, Azure DevOps, TeamCity) * Proven experience working in Agile environments7 * Understanding of application and database performance tuning, troubleshooting, and optimization techniques. * Familiarity with enterprise CMS platforms (e.g., SDL Tridion) For more information or immediate consideration for this opportunity, please ...

Core Java and REST APIs.* Practical knowledge of multi-threading, event-driven programming, and memory optimization.* Strong problem-solving and analytical abilities.* Knowledge of performance tuning techniques.* Familiarity with enterprise SDLC tools like JIRA and Confluence.* Experience with CI/CD tools such as Git, Maven/Gradle ...