26 to 50 of 263 Performance Tuning Jobs in the UK

Snowflake/Dataops Data Engineer Technical Lead

Hiring Organisation
Mphasis
Location
United Kingdom
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 ...

Cloud Data Architect - AWS

Hiring Organisation
Quantiphi
Location
United Kingdom
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 ...

Senior Backend Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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 ...

Senior Data Engineer

Hiring Organisation
Winsearch
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Contract
Contract Rate
£68 per hour
highly secure engineering and technology programme seeking an experienced Senior Data Engineer to support the design, development and delivery of secure, scalable and high-performance data solutions within a regulated environment. This role will focus heavily on the Elastic Stack and Apache NiFi, supporting enterprise-scale data ingestion, transformation … pipelines - Ensure high standards of data quality, integrity and traceability across all systems Elastic Stack & Platform Management - Configure, optimise and maintain Elasticsearch clusters for performance and resilience - Develop and maintain Logstash pipelines for efficient data processing - Create dashboards and visualisations within Kibana to support operational and strategic reporting - Monitor ...

Site Reliability Engineer

Hiring Organisation
Jobleads-UK
Location
Glasgow, Scotland, United Kingdom
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 ...

Senior Data Architect

Hiring Organisation
Euro Car Parks
Location
Central London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
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 ...

Senior Data Engineer (Informatica)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £460/day
Lambda; strong PySpark/Python and SQL for large-scale batch processing. Data engineering at scale in government or similarly complex domains, including performance tuning and data quality management. CI/CD & DevOps: pipelines and IaC (e.g., Terraform), automated testing, and release governance. Version control & collaboration: Git/ ...

Java Developer

Hiring Organisation
scrumconnect ltd
Location
Swansea, West Glamorgan, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
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 ...

Splunk Developer

Hiring Organisation
Infoplus Technologies UK Ltd
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contract
Contract Rate
From £350 to £400 per day
Splunk solution design including data onboarding, data models, dashboards, alerts, and ITSI objects. Review and govern Splunk development standards, SPL performance, and configuration best practices. Provide technical guidance, mentoring, and code reviews for Splunk developers and support teams. Splunk Core & ITSI Design and implement Splunk ITSI components including: oServices … service hierarchies oKPIs & thresholds oGlass Tables oEpisode review and correlation search tuning Build service centric monitoring aligned to business and application landscapes. Configure entity extraction, service templates, and adaptive thresholds. Data Onboarding & Engineering Lead onboarding of diverse data sources: oApplication logs, infrastructure metrics, APM data, cloud logs, and security ...

Senior Data Analyst

Hiring Organisation
Eden James Consulting Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
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 ...

iOS Developer

Hiring Organisation
IBU
Location
City of London, London, United Kingdom
highly skilled and motivated iOS Developer to join our dynamic engineering team. The ideal candidate will have strong expertise in building scalable, high-performance iOS applications using modern Apple technologies and best development practices. You will collaborate closely with cross-functional teams to design, develop, test, and maintain robust … Specialisms: Xcode Programming Languages: Swift, SwiftUI, Obj-C RELEVANT EXPERIENCES: Familiarity with Restful APIs to connect iOS applications to back-end services Experience with Performance and Memory Tuning with tools such as instruments Experience with threading and performance tuning Unit and UI testing Accessibility support DESIRED ...

Applications Developer

Hiring Organisation
E.surv Limited
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
other relational database management systems, maintenance plans, database user and security audit with a proven track record on how to achieve maximum database performance by analysing execution plans, indexes, query performance tuning and other SQL best practices. Proven and demonstrable experience in web programming using the Django … management systems including SQL. Expertise in provision, implementation, maintenance and evolution of the e.surv data warehouse, databases and associated technology whilst also ensuring maximum performance from systems. Good working knowledge of the Linux and Windows command line interfaces. Good working knowledge of user interface design technologies. Ability to coach ...

Application Developer

Hiring Organisation
E.surv Limited
Location
Kettering, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent
other relational database management systems, maintenance plans, database user and security audit with a proven track record on how to achieve maximum database performance by analysing execution plans, indexes, query performance tuning and other SQL best practices. Proven and demonstrable experience in web programming using the Django … management systems including SQL. Expertise in provision, implementation, maintenance and evolution of the e.surv data warehouse, databases and associated technology whilst also ensuring maximum performance from systems. Good working knowledge of the Linux and Windows command line interfaces. Good working knowledge of user interface design technologies. Ability to coach ...

Lead Data Engineer / Data Tech Lead

Hiring Organisation
Enablis
Location
Leeds, England, United Kingdom
warehousing solutions Act as a hands-on engineer on complex or high-risk components where required Define and promote best practices for data quality, performance, security and governance Collaborate closely with clients and stakeholders to shape data strategies and solutions Ensure data platforms meet non-functional requirements such … cloud-based data platforms such as AWS (Redshift, Glue), Azure (Data Factory, Synapse) or GCP (BigQuery, Dataflow) Advanced proficiency in SQL, including optimisation and performance tuning Strong experience with ETL/ELT pipelines and data transformation frameworks Programming capability in Python, Scala or Java for data processing Deep ...

Senior Software Engineer (DevOps)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
observable systems using modern DevOps practices, including infrastructure as code and automated quality controls. Take ownership of services in production, including monitoring, troubleshooting, performance tuning and reliability improvements. Work directly with customers to understand requirements, shape technical solutions and clearly communicate progress, risks and outcomes. Troubleshoot complex issues ...

Senior Infrastructure Analyst

Hiring Organisation
Simmons & Simmons
Location
Bristol, Gloucestershire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Azure Monitor, Log Analytics/KQL, Application Insights, Science Logic), and improve alerting and diagnostics. Lead reliability and resilience improvements such as such as performance tuning, resource optimisation, cost optimization using FinOps and provide availability enhancements, aligned to our service- level expectations. A senior analyst is expected ...

Generative AI Engineer

Hiring Organisation
Immersum
Location
London Area, United Kingdom
attribution models, allocations, and reporting frameworks — into scalable technical systems Architect and optimise data models and database layers , including schema design, indexing strategies, query tuning, and stored procedures Develop and maintain CI/CD pipelines and engineering tooling to support reliable, frequent, and high-quality deployments Implement event-driven … architectures using Kafka , enabling real-time data processing, system decoupling, and auditability Ensure high performance, reliability, and scalability across distributed systems, including observability, monitoring, and production readiness Partner with product, operations, and investment stakeholders to refine requirements and deliver iterative solutions in Agile environments Core requirements 8+ years ...

Data Reliability Engineer II (Tue - Sat)

Hiring Organisation
Jobleads-UK
Location
Belfast, Northern Ireland, United Kingdom
reliable, fast, and scalable. Moving away from traditional, reactive database administration, our mission is to proactively maintain and enhance the reliability, integrity, and performance of our data footprint. You will help manage a diverse, modern GCP data ecosystem—spanning relational, NoSQL, and analytical platforms (with a focus on PostgreSQL … Cloud SQL and AlloyDB, alongside Spanner, Cassandra, Firestore, Bigtable, and BigQuery) - while ensuring smooth operations, performance tuning, and automated deployments. As our team embraces a cloud-first mindset, you will be encouraged to move beyond a specialized database mindset to become a broad generalist, developing skills across modern ...

DevOps & Infrastructure Engineer

Hiring Organisation
Computer Futures
Location
United Kingdom
Employment Type
Permanent
Salary
GBP 50,000 - 70,000 Annual
related events Monitoring, Reliability & Support Implement monitoring, alerting, and observability across infrastructure and applications Define SLAs/SLOs and ensure systems meet availability and performance requirements Provide 3rd line support and escalation for complex infrastructure issues Conduct capacity planning, performance tuning, and reliability improvements Lifecycle & Maintenance Manage ...

Senior Oracle Developer

Hiring Organisation
Experis
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Permanent
Manage and execute database development across the full software development lifecycle (SDLC) Perform query optimisation and apply PL/SQL best practices to improve performance and efficiency Create, schedule, monitor, and audit Oracle Jobs within production environments Work with data warehousing concepts and large datasets where required Develop … Demonstrate experience with tools such as Jira and Confluence for tracking and collaboration Support solution design activities in collaboration with architects where required Apply performance tuning techniques where necessary to optimise database performance If you receive suspicious outreach claiming to be from us, please contact ...

Co-pilot consultant

Hiring Organisation
KPMG UK
Location
City of London, London, United Kingdom
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 ...

Junior Data Engineer

Hiring Organisation
Pontoon
Location
Edinburgh, Midlothian, Scotland, United Kingdom
Employment Type
Contractor
Contract Rate
£36,000 - £41,000 per annum
variety of database technologies including relational, NoSQL, MPP and columnar stores (BigQuery, Redshift, Azure SQLDW, HBase, MongoDB). Build optimised, scalable data models. Apply performance tuning and optimisation across storage. Ensure secure handling of data including authentication, authorisation, encryption. Implement monitoring, alerting for large-scale distributed data workloads. ...

Microsoft Dynamics 365 Developer

Hiring Organisation
Line Up Aviation
Location
Farnborough, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£38.25/hour
requirements into technical specifications. Develop and maintain integrations between D365 and other enterprise systems using APIs and middleware. Participate in system upgrades, patches, and performance tuning. Ensure code quality through unit testing, code reviews, and adherence to best practices. Provide technical support and troubleshooting for D365 applications. Maintain documentation ...

Senior Database Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
supporting production and non-production SQL Server databases that underpin business‐critical applications. Perform hands‐on production DBA activities, including operational support, troubleshooting, and performance investigation. Support the operation of AlwaysOn Availability Groups. Investigate and resolve database‐related issues such as performance degradation, blocking, deadlocks, resource contention … application‐impacting incidents. Ensure databases meet agreed standards for availability, performance, security, and recoverability. Support stable day‐to‐day operation of database services while identifying opportunities for improvement. Cloud & Multi‐Platform Support Support and operate Azure SQL workloads in line with platform and security standards. Provide hands‐on support ...

Senior BI Developer

Hiring Organisation
AJ Bell
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
define requirements, develop best-in-class data products, and produce engaging and accurate reporting used by our teams and senior managers to track performance and make strategic decisions. You’ll also form a key part of our wider data community, ensuring that our organisational data supports our ambitious growth … knowledge of data architecture (Snowflake is preferred), SQL development, security, and process optimisation Advanced SQL development including query development and optimisation, stored procedures, and performance tuning Expert knowledge of end-to-end enterprise BI using Power BI including semantic modelling, DAX, Power Query, data visualisation best practice, report ...