1 to 25 of 212 Permanent Performance Tuning Jobs in the UK

ingestion, multi-stage workflows, and external integrations. We are looking for a hands-on Senior MongoDB Engineer with deep experience in database design, performance tuning, and cluster management within AWS cloud environments. This role requires someone who has worked extensively on production-grade MongoDB clusters, ensuring high availability … performance, and resilience in distributed systems. Senior MongoDB Engineer Key Responsibilities: MongoDB Architecture & Engineering Design and implement scalable MongoDB data models (schema design) for: Build and manage MongoDB clusters (replica sets & sharded clusters) Performance Tuning & Optimization Perform advanced query optimization and indexing strategies Proactively identify and resolve ...

PostgreSQL, Greenplum, and Snowflake platforms in a complex, data-intensive environment. This is a hands-on technical role requiring deep expertise across database administration, performance tuning, data engineering support, and cloud-based data platforms. Key Responsibilities Administer, maintain, and support PostgreSQL, Greenplum, and Snowflake database environments Manage database … with data ingestion pipelines using tools such as Informatica or Talend Manage data migration activities using tools such as gpcopy with minimal downtime Perform performance tuning, query optimisation, and database health checks Handle database backup, recovery, and high availability strategies (including Patroni-based setups) Monitor and manage database ...

adoption with team governance practices Required Experience & Skills Technical Skills Frontend Development : Strong proficiency with modern UI frameworks (e.g. Angular, React, Vue.js, Blazor) including performance optimisation and component architecture OR working knowledge with focus on backend specialisation Backend Development : Strong proficiency with .NET Core, C#, ASP.NET Core Web APIs … debugging, using them critically and responsibly to improve quality, productivity and decision-making. Observability : Advanced DataDog, Application Insights or Amazon CloudWatch implementation with performance tuning and cost optimisation Infrastructure as Code : Infrastructure as Code with either Terraform, Bicep, ARM Templates or AWS CloudFormation/CDK CI/ ...

Networking & Security: Experience with GCP Cloud Armor, GCP Networking, and embedding secure-by-design controls from design to runtime. • Automation & Observability: Implementing actionable observability, performance tuning, and automation to reduce toil. Defining and operating against SLOs/SLIs. • Scripting & Tooling: Scripting in Bash, PowerShell, or Python. Familiarity with … managing Google resources, ensuring repeatability and compliance. • Security & Compliance: Embed security best practices and controls throughout the platform lifecycle, safeguarding organisational and customer data. • Performance & Reliability: Define, monitor, and operate against service level objectives (SLOs/SLIs), ensuring high availability, performance, and fault tolerance. • Continuous Improvement: Drive automation ...

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 ...

Azure SQL, Cosmos DB, Azure Data Factory, and Power BI. What You’ll Do Manage and support SQL Server environments (including Always On, upgrades, performance tuning, HA/DR) Improve how data moves through the platform using Azure Data Factory and related tools Build automation and CI/… make data more reliable and easier to use What We’re Looking For Strong SQL Server experience in production environments Good understanding of performance tuning, indexing, and high availability Experience with upgrades, backups, and disaster recovery Some exposure to Azure SQL or cloud data platforms Interest in automation ...

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: Design … with DevOps, Product, and QA teams to ensure production-grade solutions. Drive architectural changes, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 10+ years of experience in Java development with a focus on performance ...

hybrid role is based in the UK 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 … with DevOps, Product, and QA teams to ensure production-grade solutions. Drive architectural changes, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 10+ years of experience in Java development with a focus on performance ...

environments at enterprise scale Leading implementation and optimisation of Nutanix clusters across hybrid infrastructure Providing L2/L3 support for Nutanix platforms, including performance tuning and issue resolution Contributing to HLD/LLD design for Nutanix-based infrastructure solutions Supporting lifecycle activities including upgrades, patching and platform enhancements … Working closely with infrastructure teams to ensure resilient, scalable Nutanix deployments Troubleshooting complex Nutanix performance, storage and virtualisation issues Producing clear technical documentation and operational runbooks Essential Skills & Experience Strong hands-on experience with Nutanix HCI in enterprise environments (L2/L3 level) Proven experience designing and implementing Nutanix ...

across podcasting, video and next generation consumer experiences. Their analytics and BI capability sits at the heart of digital strategy, supporting product teams, content performance and audience engagement. The business is actively modernising its data stack, moving away from legacy BI platforms toward scalable, best in class solutions. … optimise Power BI solutions, covering data modelling, DAX and semantic layers. Design robust data models using star schema principles and well managed relationships. Own performance tuning across Power BI models and reports to ensure scalability and usability. Partner closely with data engineering and analytics to shape high quality ...

Support Team supporting large-scale DB2 subsystems across multiple mainframe environments and geographies. The ideal candidate will be responsible for ensuring the performance, integrity, security, maintenance, and availability of the DB2 database environment while providing L2/L3 production support for mission-critical applications. Key Responsibilities • Manage and support …/OS environments across enterprise mainframe systems. • Monitor database performance, tuning, integrity, availability, and security. • Install, configure, test, and maintain supported DB2 versions and monitoring tools. • Provide Level 2 and Level 3 support for DB2-based applications and environments. • Support highly responsive OLTP (CICS) DB2 environments. • Develop, manage ...

world's largest financial institutions. What You'll Do Lead SQL Engineering - Solve complex SQL Server 2016-2022 challenges across availability, tuning, performance, and architecture. Shape the MSSQL SRE practice - Influence standards, patterns, SLIs/SLOs, and operational models for the SQL estate. Act as the top technical … product, engineering, and platform teams to deliver resilient, scalable database services. What You'll Bring Deep Microsoft SQL Server expertise (SQL 2016-2022) across performance tuning, HA/DR, internals, and enterprise‐scale architecture. Strong SRE mindset - SLIs/SLOs, error budgets, automation‐first thinking, and reliability engineering. ...

support, stability, and availability of Oracle databases. Key Responsibilities: Day-to-day administration of Oracle databases (11g/12c/19c) Database monitoring, performance tuning, and issue resolution Backup, restore, and recovery using RMAN Managing database security, users, roles, and access controls Supporting patching, upgrades, and routine maintenance … requests Essential Skills & Experience: Strong hands-on experience as an Oracle DBA Oracle Database administration (11g/12c/19c) Backup and recovery (RMAN) Performance tuning and troubleshooting Linux/Unix environments Experience working in secure or regulated environments Security Requirements: ACTIVE DV clearance (must be current ...

Support Engineer & Administrator experience to manage, support, and optimize Pitney Bowes mailing and shipping solutions. The role involves end-to-end platform administration, troubleshooting, performance tuning, and integration support across enterprise environments. Key Responsibilities Platform Administration & Support Administer and maintain Pitney Bowes systems (e.g., SendPro, Mailstream, Spectrum, EngageOne … patch management of Pitney Bowes applications. Manage system configurations, user roles, permissions, and access controls. Monitor system health and ensure high availability and performance of the platform. Production Support & Incident Management Provide L2/L3 support for production issues and critical incidents. Conduct root cause analysis (RCA) and implement ...

support, stability, and availability of Oracle databases.Key Responsibilities:Day-to-day administration of Oracle databases (11g/12c/19c)Database monitoring, performance tuning, and issue resolutionBackup, restore, and recovery using RMANManaging database security, users, roles, and access controlsSupporting patching, upgrades, and routine maintenanceWorking within secure, regulated environments … service requestsEssential Skills & Experience:Strong hands-on experience as an Oracle DBAOracle Database administration (11g/12c/19c)Backup and recovery (RMAN)Performance tuning and troubleshootingLinux/Unix environmentsExperience working in secure or regulated environmentsSecurity Requirements:ACTIVE DV clearance (must be current and transferable)UK national with ...

London, United Kingdom Posted: 10 months ago This is a job posted by our partner Jooble Tech stack Architecture Python refactoring TypeScript Software Engineer Performance tuning Django Company MineHub offers an open, enterprise‐grade platform designed for digital trade that enhances efficiency, security, and responsibility within the mining … scalable software solutions using Python/Django (legacy) and TypeScript (future). Proactively optimize and modernize systems through tech debt reduction, code refactoring, performance tuning, and ... Compensation Competitive Role type Full time Visa sponsorship Not provided #J-18808-Ljbffr ...

applications built on Oracle technologies. This role focuses on maintaining and improving existing systems, resolving production issues, implementing enhancements, and ensuring the stability and performance of Oracle-based business applications. The ideal candidate will have strong hands-on expertise in Oracle Database 19c, PL/SQL, and application maintenance … constraints. Support data fixes, data migration, and data validation activities in production and non-production environments. Ensure database code aligns with best practices, performance standards, and security guidelines. Application Maintenance & Production Support Provide day-to-day support and maintenance for Oracle-based applications across multiple environments. Troubleshoot and resolve ...

analytics, machine learning, and operational reporting initiatives. You will work closely with data analysts, software engineers, architects, and business stakeholders to deliver robust, high-performance data solutions in a cloud-native AWS environment. The ideal candidate has strong expertise in PySpark, Python, Apache Airflow, AWS services, Terraform, and modern … workflows to ensure data quality, consistency, and availability. Implement data transformation, cleansing, enrichment, and validation processes. Troubleshoot and resolve data pipeline failures, bottlenecks, and performance issues. Workflow Orchestration Design and manage complex workflows using Apache Airflow. Create and maintain DAGs with robust scheduling, dependency management, alerting, and recovery mechanisms. ...

resolve data pipeline failures and data test failures Optimise and improve data pipelines Utilise Snowflake best practices and features to optimise credit usage and performance Work with Data Consumers to optimise queries and improve consumption of data Technical skills A background in SQL and principles of data warehousing Snowflake … Docker and Linux Hands on experience with DBT Expertise in Snowflake advanced concepts like setting up resource monitors, RBAC controls, virtual warehouse sizing, query performance tuning Expertise in deploying Snowflake features such as data sharing Experience with data security and data access controls and design Experience with ...

Architect and implement scalable, secure, and highly available data platforms on AWS. Drive schema conversion and modernization strategies (heterogeneous migrations where applicable). Optimize performance of source and target systems pre- and post-migration. Manage and govern S3-based data lakes and metadata using Glue Data Catalog. Collaborate with … working with S3-based data lakes and Glue Data Catalog. Strong understanding of CDC, transaction consistency, and migration cutover strategies. Hands-on experience with performance tuning, schema design, and query optimization. Proficiency in Python/PySpark and scripting (Shell/Python). Experience with Oracle, SQL Server, MySQL ...

e.g. Celery, Redis Streams, Kafka) to enable scalable async workloads, retries, and fault-tolerant integrations. Design data models and optimise relational databases (PostgreSQL) for performance, partitioning, and horizontal scale. Introduce caching, rate limiting, and queuing to meet performance budgets and latency goals. Integrate with AI pipelines and model … with event-driven architectures. Proven experience designing and operating production REST APIs with OpenAPI/Swagger. Deep understanding of relational database design, indexing, performance tuning, and migrations (PostgreSQL). Proficiency with containerisation (Docker) and Git-based workflows. Experience with API versioning, security, documentation strategies, and automated testing. Strong ...

experienced and proactive Site Reliability Engineer (SRE) to join our Technology team. In this role, you will be responsible for ensuring the reliability, availability, performance, and scalability of our cloud infrastructure and healthcare platforms that support millions of users worldwide. As a Site Reliability Engineer, you will work … reduce operational toil through automation, Infrastructure as Code (IaC), and self-service capabilities. Collaborate closely with software engineering teams to improve application reliability, performance, and operational readiness. Identify and eliminate reliability bottlenecks through performance tuning, capacity planning, and system optimisation. Support infrastructure and platform upgrades, ensuring minimal ...

hands-on Senior Data Architect who is equally comfortable designing the target state for a multi-system SQL data estate, writing and tuning the T-SQL that delivers it, and standing up the security, monitoring and operational practices that keep it running. You will own data architecture across … framework and PowerShell development at expert level partition design and partition-aligned indexing, clustered/nonclustered index strategy, deduplication, parallel-run cutovers, schema migration, performance tuning of high-impact production queries. Driving the in-flight ETL replatform replacing legacy SSIS jobs with a table-driven, parallel ...

Role Overview We are seeking a highly skilled and experienced Java Developer to lead the design, development, and delivery of scalable, secure, and high-performance enterprise applications. The ideal candidate will possess deep expertise in Java and Spring Boot, strong architectural knowledge, and proven experience leading development teams … high-performing Back End services. Integrate with internal and external systems through APIs, messaging platforms, and event-driven architectures. Ensure compliance with security, performance, and reliability requirements. Architecture & Design Participate in system architecture, technical design discussions, and solution planning. Drive cloud-native development practices and modernization initiatives. Identify ...

stack (Data Factory, Synapse/Fabric, SQL-based semantic layers). Advanced Power BI: data modelling (star schemas), advanced DAX, Power Query/M, performance tuning, RLS and deployment via pipelines. A strong understanding of Power BI engineering discipline: PBIP/TMDL source format, Git-based version control … with demonstrable experience in a team setting. Proven ability to carry out peer review and QA of analytics work, spotting model errors, DAX issues, performance problems and UX weaknesses. Excellent written and verbal communication skills, including presenting to underwriting and senior stakeholders, with a track record of turning ambiguous ...