1 to 25 of 97 Performance Tuning Jobs in London

Performance Tuning Specialist - SQL Server - Remote - Azure - £40,000-£55,000 Why this role I am working with a rapidly growing UK-based managed service provider specialising in SQL Development and DBA services. They're a tight-knit team scaling quickly after bringing in a BD Manager … heard, and you are given the autonomy, trust, and support to make a real impact. What you will be working on:* Deep SQL Server performance tuning across queries, indexes, execution plans, and stored procedures* PowerShell scripting for automation and optimisation* Azure database and cloud environments* Advising ...

Airflow, Azure Data Factory, or similar. Data Modelling: Implement dimensional models (star/snowflake schemas), handle SCDs, and design efficient structures for analytics. Performance Tuning: Optimise queries, manage clustering, caching, and warehouse sizing for cost and speed. Data Quality: Implement testing frameworks (dbt tests, Great Expectations) and ensure … service analytics. Documentation: Maintain clear technical documentation for pipelines, models, and processes. Qualifications Matric and a Degree in IT Strong SQL skills (complex queries, performance tuning) and proficiency in Python for data processing. Experience with ETL/ELT tools (dbt, Airflow, ADF, Informatica, Matillion). Solid understanding ...

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 ...

proactive DBA to manage, assess and future-proof their database environment. Key Skills required from the SQL DBA: Microsoft SQL Server administration (multiple versions) Performance tuning, indexing, query optimisation and troubleshooting Database version upgrades and consolidation projects Backup, recovery and high availability strategies Working within complex or legacy … Ownership of database strategy and continuous improvement Key responsibilities of the SQL DBA: Full ownership and management of all SQL databases across the organisation Performance tuning and optimisation across the entire database estate Conducting a full discovery of existing databases, configurations and dependencies Identifying risks, inconsistencies and improvement ...

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 ...

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 ...

looking for a Senior Python Developer to design, build, and maintain high-performance, scalable solutions supporting financial market analytics. This is a high-impact role sitting at the intersection of complex data engineering and front-office trading systems. You will play a key role in shaping engineering practices, guiding … architectural decisions, and leading junior engineers to deliver business-critical solutions. Financial Engineering: Design and deploy scalable, high-performance software for data processing and trading analytics. Technical Leadership: Lead architectural decisions, conduct rigorous code reviews, and mentor junior engineers. Stakeholder Collaboration: Partner with Traders, Quants, and Product Managers ...

Scripting C, C++, PERL, Java or equivalent for application interfacing and scripting Data Handling Real-time data acquisition, Historian integration, data replication, and logging Performance Tuning & Monitoring Query optimization, indexing, database health monitoring Version control with Git, SVN, or equivalent Design, develop and maintain databases and data models …/DMS/SCADA) Develop, enhance, and maintain display applications, dashboards, and HMI interfaces/Station displays for operators and engineers Ensure high performance, reliability, and integrity of database system under real-time operational loads Perform database tuning, indexing, query optimization, and performance monitoring Develop and maintain ...

trusted backend partner for Product and Platform teams. Within 12 months, you will: Confidently own and evolve multiple backend systems. Improve database performance and background job efficiency. Reduce operational risk across TOC integrations. Strengthen CI/CD reliability and deployment confidence. Contribute to longer-term backend architecture improvements … party integrations, ensuring reliable and secure data exchange. Infrastructure Collaboration: Work with the Platform team on AWS-based deployments and CI/CD processes. Performance & Reliability: Optimise background processing and database performance to maintain system stability. Incident Response: Support investigation and resolution of production issues. Cross-Functional Collaboration ...

Engineer to design, build, and optimize scalable data solutions within our modern cloud data platform. You will play a key role in developing high-performance data pipelines, implementing data models, and enabling advanced analytics using Snowflake . The ideal candidate has strong experience in cloud-based data warehousing …/ELT development, and performance optimization, along with a passion for building reliable, scalable data systems. Key Responsibilities Design, develop, and maintain scalable data pipelines using Snowflake Build and optimize data models (star/snowflake schema) to support business intelligence and analytics Develop ELT processes using SQL, stored procedures ...

large, enterprise-scale IBM Z environment. This is a hands-on role focused on DB2 for z/OS system-level administration, availability, performance, and resilience. Youll work on critical production systems, owning DB2 subsystem health, upgrades, tuning and recovery, while collaborating with infrastructure, security and vendor teams. … Responsibilities DB2 for z/OS installation, maintenance and upgrades using SMP/E Applying PTFs and managing DB2 subsystem lifecycle Performance monitoring and tuning (ZPARMS, buffer pools, EDM pools) Backup, recovery and disaster recovery for DB2 catalog and directory Administration of Broadcom/CA tools (Platinum, SYSVIEW ...

delivering data ingestion, transformation, and storage patterns using S3, AWS Glue, and Redshift Owning data architecture decisions, including data modelling, partitioning strategies, and performance optimisation Defining and enforcing engineering standards across code quality, testing, CI/CD, IaC, and observability Building and optimising ELT/ETL pipelines using Glue … domains Strong hands-on experience with: Amazon S3 (data lake patterns, partitioning, lifecycle management) AWS Glue (Jobs, Crawlers, PySpark, orchestration) Amazon Redshift (data modelling, performance tuning, WLM, Spectrum) Advanced Python (PySpark) and SQL skills Experience implementing CI/CD pipelines and Infrastructure as Code Proven ability to engage ...

knowledge of SQL for querying and managing relational databases like MySQL , PostgreSQL , or Oracle . Skilled in writing complex joins , subqueries, stored procedures, and performance tuning. Experience with integrating SQL queries within Java applications using JDBC, JPA, or Spring Data JPA . Extensive experience in unit testing Java applications ...

Role Overview We are seeking a Lead PySpark Engineer to drive a large-scale data modernisation project, transitioning legacy data workflows into a high-performance AWS cloud environment. This is a hands-on technical role focused on converting legacy SAS code into production-ready PySpark pipelines within a complex … PySpark using automated tools (SAS2PY) and manual refactoring. Pipeline Engineering: Design, build, and troubleshoot complex ETL/ELT workflows and data marts on AWS. Performance Tuning: Optimise Spark workloads for execution efficiency, partitioning, and cost-effectiveness. Quality Assurance: Implement clean coding principles, modular design, and robust unit/ ...

IDMC Cloud components to meet business requirements. Troubleshoot issues related to MDM data models, hub servers, IDMC services, and integration points. Assist in performance tuning and optimization of MDM and IDMC processes. Document migration processes, architecture changes, and provide training/support to internal teams. Stay updated with ...

connectivity, firewalls, and SDN configurations, troubleshooting issues and supporting resilience improvements. Provide 2nd/3rd line support for Windows and Linux systems, managing updates, performance tuning, and configuration consistency. Maintain accurate system and configuration documentation, supporting compliance and governance requirements. Collaborate across teams to improve operational efficiency, automate ...

monitor performance. Collaborate with Product, Engineering, and Business teams to translate business problems into AI solutions. Conduct model evaluation, A/B testing, and performance tuning. Document models, experiments, and technical processes. Required Skills & Qualifications:- Classic Machine learning (Regression, predictive Analysis, Classification, Clustering) Machine learning Model Optimisation Strong proficiency ...

Sills and Experience: * Proficient in SQL, C#, Python, Java, HTML/CSS, and related development frameworks. * Understanding of API integration, data modelling, and application performance tuning. * Strong project management skills are essential for implementing new systems or major upgrades. * Experience managing software lifecycle tools (e.g., Jira, Azure DevOps, ManageEngine ...

seamless collaboration across diverse stakeholders. This role combines technical leadership with hands-on data engineering, focusing on designing and optimizing data pipelines, improving performance, and contributing to data modeling and architecture decisions. The Data Engineer will work with the Data Solutions Architect and functional SMEs to deliver scalable, secure … project leadership. Major Responsibilities: Develop and maintain complex ETL/ELT pipelines to ingest and transform data from multiple sources into the UDP environment. Performance tuning and optimization of data workflows within Azure Databricks. Implement advanced data quality checks and validation routines to ensure integrity and consistency ...

using Java (latest versions), Spring Boot, and AWS technologies. Architect and implement RESTful APIs for distributed enterprise-grade systems. Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns. Integrate and manage AWS services such as EC2, S3, Lambda, RDS, and API Gateway for cloud … with Docker and orchestrate using Kubernetes for scalability and resilience. Integrate Kafka for event-driven architecture and real-time data processing. Ensure application security, performance tuning, and monitoring using AWS CloudWatch and best practices. Collaborate with cross-functional teams, participate in code reviews, and take full ownership ...

using Java (latest versions), Spring Boot, and AWS technologies. Architect and implement RESTful APIs for distributed enterprise-grade systems. Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns. Integrate and manage AWS services such as EC2, S3, Lambda, RDS, and API Gateway for cloud … with Docker and orchestrate using Kubernetes for scalability and resilience. Integrate Kafka for event-driven architecture and real-time data processing. Ensure application security, performance tuning, and monitoring using AWS CloudWatch and best practices. Collaborate with cross-functional teams, participate in code reviews, and take full ownership ...

Perform data extraction, transformation, and loading (ETL) processes from Avaloq using approved tools and interfaces. Manage, maintain, and optimize datasets in Snowflake, ensuring accuracy, performance, and alignment with governance standards. Assist in evaluating and integrating datasets from the Snowflake Data Marketplace. Provide day-to-day operational support to business … handling data from Avaloq (essential). Strong proficiency with Snowflake, including: Data Modelling, Snowflake roles, warehouses and tasks, working with the Snowflake Data Marketplace, Performance Tuning and Knowledge of ETL/ELT pipelines and data integration tools (e.g., Informatica, Matillion, DBT, Airflow). Experience with APIs, stored procedures ...

testable and maintainable code following best practices Participate in code reviews and contribute to improving engineering standards Support production systems, including bug fixing and performance tuning Work within Agile/Scrum delivery teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building ...

transactions and flows Driving projects from inception through design, build, testing and release Core requirements: Strong C#/.NET development experience Advanced SQL skills (performance tuning, complex queries, data modelling) Azure cloud experience (App Services, Functions, Service Bus, DevOps etc.) Experience building highly available, resilient systems Excellent communication ...