76 to 100 of 443 Performance Tuning Jobs in England

Backend Developer

Location
Oxford, England, United Kingdom
platforms, including C#, .NET, SQL Server, and Azure. Experience designing and developing RESTful APIs, microservices, and distributed systems. Strong knowledge of database design, optimisation, performance tuning, and data modelling. Solid understanding of cloud technologies, secure API design, application security, networking concepts, authentication, authorisation, and API-based architectures. Experience ...

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 Analyst

Location
Greater London, England, United Kingdom
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. Understanding of Power BI engineering discipline: PBIP/TMDL source format, Git‐based version control, pull‐request … experience of these practices in a team. Proven ability to carry out peer review and QA of analytics work – spotting model errors, DAX issues, performance problems and UX weaknesses, and giving constructive feedback. Excellent written and verbal communication skills, including presenting to underwriting and internal stakeholders. Strong stakeholder engagement ...

Senior Database Specialist

Location
Skipton, England, United Kingdom
future direction of our database and data platform capabilities, ensuring they meet the evolving needs of the organisation while maintaining high standards of governance, performance and operational resilience. At Skipton, we're founded on fairness. We exist to do right by our members - and we believe that starts with … current and future business needs. Leading improvements in database automation, infrastructure as code, deployment pipelines and operational tooling. Driving platform reliability through proactive monitoring, performance optimisation, capacity management and resilience testing. Investigating and resolving complex database incidents, conducting root cause analysis and implementing preventative measures. Establishing and maintaining database ...

DBA

Location
Greater London, England, United Kingdom
looking for an experienced Senior Database Administrator with extensive Microsoft SQL Server experience and strong knowledge of Azure, database performance, security, automation and DevOps . You will lead the ongoing management, optimisation and modernisation of the database estate, supporting migration, upgrades, resilience and technical debt reduction while working closely … support the Microsoft SQL Server estate and related Azure data services. Lead database upgrades, migrations, optimisation and decommissioning activity. Monitor, tune and improve database performance, availability, capacity and resilience . Troubleshoot integrity, performance, blocking, deadlocking, replication, connectivity and security issues. Manage backup, restore, patching, maintenance and disaster recovery ...

Senior Data Engineer

Location
Greater London, England, United Kingdom
automated testing, anomaly detection, alerting, and observability across the data lifecycle.• Own production issues through diagnosis, recovery, root-cause analysis, and prevention.• Improve query performance, warehouse efficiency, and cloud cost without compromising reliability.Enable machine learning and customer experiences• Create versioned training, validation, and inference datasets for search, recommendations, personalization … more years of experience building and operating data pipelines or data platforms in production.• Strong Python and advanced SQL skills, including testing, debugging, performance tuning, and maintainable code design.• Hands-on experience with Snowflake or another modern cloud data platform, plus practical knowledge of dimensional and analytical data ...

Data Architect

Location
Greater London, England, United Kingdom
access controls, row‐level security, dynamic data masking, and PII governance in line with regulatory requirements (GDPR, BCBS 239) Champion Snowflake best practices for performance tuning, clustering keys, materialised views, and query optimisation Evaluate Snowflake‐native capabilities (Snowpark, Cortex AI, Dynamic Tables) and recommend adoption where they accelerate … Formation, IAM, VPC Data Governance Data lineage, cataloguing (Apache Atlas/Collibra/Snowflake Horizon), GDPR, BCBS 239, MDM AI/ML Data Query & Performance SQL optimisation, clustering keys, partitioning, query profiling, cost‐based tuning Data Landscape The Data Architect will work across the following technology landscape. Candidates ...

Senior Data Engineer

Location
Reading, England, United Kingdom
translate requirements into scalable technical solutions and reusable datasets that deliver measurable business value. Continuous Improvement & Strategic Contribution: Identify opportunities to improve platform performance, scalability and cost efficiency, while contributing to engineering standards, roadmap initiatives and the long-term growth of Primark's Data & Analytics capabilities. What … Engineering Best Practices: Experience withdbtCloud ordbtCore, including model development, testing, documentation, lineage, deployment workflows, CI/CD and version control practices. Data Quality, Performance &Optimisation: Strong understanding of data quality, observability, operational monitoring and performance tuning, with a focus on delivering reliable, scalable and cost-efficient data ...

Senior Data Engineer

Location
City of Westminster, England, United Kingdom
translate requirements into scalable technical solutions and reusable datasets that deliver measurable business value. Continuous Improvement & Strategic Contribution: Identify opportunities to improve platform performance, scalability and cost efficiency, while contributing to engineering standards, roadmap initiatives and the long-term growth of Primark's Data & Analytics capabilities. What … Engineering Best Practices: Experience withdbtCloud ordbtCore, including model development, testing, documentation, lineage, deployment workflows, CI/CD and version control practices. Data Quality, Performance &Optimisation: Strong understanding of data quality, observability, operational monitoring and performance tuning, with a focus on delivering reliable, scalable and cost-efficient data ...

data engineer for rail industry

Location
Greater London, England, United Kingdom
Описание RSSB supports the rail industry through data, standards, and digital products focused on health, safety, quality, operational performance, and sustainability. Its data solutions integrate national, industry, and internal business sources to support analytics, decision-making, and business processes. Задачи Ensure data for downstream applications is reliable, accessible … solutions Conduct complex data quality checks and monitoring, and perform remediation to maintain data integrity Maintain and optimise data pipelines, APIs, and applications for performance and reliability Develop quick prototypes and high-quality products according to the context Design, code, test, and document complex data engineering scripts and applications ...

Senior Technology Architect Snowflake

Location
Greater London, England, United Kingdom
technology evaluations, and platform transformation initiatives. Establish governance, security, resilience, scalability, and cost‐optimization frameworks. Lead Snowflake architecture covering security, governance, RBAC, data sharing, performance optimization, and multi‐environment strategy. Define enterprise data platform standards and operational best practices. Guide warehouse sizing, workload management, performance tuning ...

Risk C# / .NET Developer (Credit Risk Analytics)

Location
Greater London, England, United Kingdom
Risk Management. Key responsibilities: Extending Credit Risk pricing calculators to support additional products and scenarios. Upgrading the legacy codebase to .NET Core. Undertaking performance tuning of existing applications and services. Performing rigorous testing of the codebase, including unit and integration testing. Supporting the rollout of further enhancements ...

Senior Data & AI Platform Engineer

Location
Manchester, England, United Kingdom
track record of building maintainable ELT/ETL pipelines and analytical data models. Strong Power BI and DAX experience, including semantic modelling, incremental refresh, performance tuning, model governance and capacity/cost awareness. Experience leading legacy-to-modern data platform migrations, including metric parity, stakeholder validation, change control ...

Lead Engineer

Location
Greater London, England, United Kingdom
CSPM, ITSM, DevOps tooling (CI/CD), and secrets management.* Be responsible for the operational model: backup/recovery, DR, platform upgrades, policy hardening, performance tuning, and continuous improvement.* Drive onboarding at scale ensuring standardized onboarding patterns and controls.* Establish guardrails and RBAC/ABAC models aligned ...

Database Platform Engineer

Location
Greater London, England, United Kingdom
across on‐premises and AWS environments Supporting large-scale deployments of PostgreSQL, Microsoft SQL Server, MySQL and CockroachDB, ensuring high availability, disaster recovery and performance Contributing to the design and implementation of automation for database provisioning, upgrades, replication and monitoring using Python, Ansible and Terraform Driving improvements in performance tuning, query optimisation, indexing strategies and storage design Collaborating with application and research teams to design and deliver database solutions that meet demanding scalability and latency requirements Participating in the out-of-hours rota to provide support for critical systems Staying up to date with industry trends ...

Devops SRE

Location
Greater London, England, United Kingdom
maintain, and enhance CI/CD pipelines enabling automated testing, seamless deployments, and continuous integration. Diagnose and resolve complex system‐level issues related to performance, scalability, networking, and automation. Collaborate with cross‐functional teams to deliver cloud‐native solutions aligned with engineering best practices and business goals. Required Skills … Kubernetes services such as CoreDNS , cert‐manager , Dynatrace , Cloudability , and Infoblox . Familiarity with OPA Gatekeeper for policy enforcement and tenant isolation. Security, Observability & Performance Strong security mindset with a proven track record of designing secure, resilient cloud‐native systems. Experience implementing observability stacks including Prometheus , Dynatrace , and OpenTelemetry ...

Senior KDB+ Developer

Location
Greater London, England, United Kingdom
Project description 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 collaboration with business stakeholder - particularly within Risk functions … deliver robust, efficient and maintainable solutions. Responsibilities Design, develop and maintain kdb+ tick systems with strong understanding of data organization, schema design and the 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. ...

Senior Data Engineer

Hiring Organisation
Eutopia Solutions Limited
Location
Andover, Hampshire, South East, United Kingdom
Employment Type
Permanent
Salary
£80,000
platforms. You will design, build and maintain scalable data solutions across Azure, SQL and Python , working on production data pipelines, data warehousing, modelling, platform performance and data quality. You will also contribute to technical design decisions and the continued evolution of the wider data platform. We are looking … strong experience across: Microsoft Azure data technologies Advanced SQL , including optimisation and performance tuning Python for data pipelines, automation and integrations Designing and supporting production data pipelines and data warehouses Data modelling and scalable data architecture Data quality, validation, monitoring and observability Git, code reviews, automated testing ...

ETL Developer

Hiring Organisation
AMS CWS
Location
London, United Kingdom
Employment Type
Contract
Derivatives (ETD) including futures and options and Cleared OTC products (interest rate swaps, credit default swaps, repos). You will design and build high-performance data pipelines that ensure complete accuracy, regulatory compliance and minimal disruption to daily clearing operations. What you'll do: Legacy System Decoding: Analyze … Cross-functional Collaboration : Work closely with Business Analysts, Risk, Product Control, and Operations teams to translate functional specifications into clean, production-grade ETL code Performance Tuning : Optimize massive batch and real-time streaming data loads (using Autosys, Control-M, or Kafka) to comfortably fit within tight overnight batch ...

Senior BI Developer/ Senior Data Analyst

Location
Wolverhampton, England, United Kingdom
self-service BI, reducing manual reporting through Power BI, Power Apps, and workflow automation. Ensure high standards of data quality, governance, documentation, and performance optimisation. Lead BI storytelling for senior stakeholders, translating complex data into clear, actionable insight. Mentor junior BI developers/analysts and contribute … Required Skills & Experience: 5+ years’ experience in business intelligence, data analytics, or BI development, with strong technical ownership. Advanced SQL skills, including complex transformations, performance tuning, and dimensional modelling. Deep hands-on experience with Power BI, including DAX, data modelling, deployment pipelines, and performance optimisation. Experience working ...

Senior Full stack Developer - Birmingham - Perm,

Hiring Organisation
INFUSED SOLUTIONS LIMITED
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent
Salary
£80,000
Senior Full Stack Developer Location: Birmingham (Onsite) Salary: £60,000 - £65,000 DOE Job Type: Permanent, Full-Time Senior Developer - Platform Stability, Performance & Engineering Excellence We're looking for an experienced Senior Developer who enjoys solving complex technical challenges and improving the quality, resilience, and performance of large … scale SaaS platforms. This is a unique opportunity to play a key role in improving platform reliability, performance, and engineering standards across a growing technology business. Rather than focusing on traditional feature development alone, you'll work closely with engineering teams to identify systemic issues, enhance platform robustness ...

Integrations Engineer (Fixed Term) based in Derby

Location
East Midlands, England, United Kingdom
requirements. Implement data quality, validation, and monitoring controls to ensure accurate, reliable, and timely data flows. Troubleshoot, resolve, and prevent integration incidents; continuously improve performance, scalability, and resiliency. Collaborate with stakeholders, vendors, and technical teams to gather requirements, design interfaces, and deliver end‐to‐end integrations. Embed data security … designing and delivering ETL and ELT solutions , including data extraction, transformation and loading patterns, with the ability to justify design decisions relating to performance, maintainability and reprocessing. A strong track record of designing and delivering workflow automation using tools such as Power Automate and/or Make, with clear ...

Cloud Platform Engineer

Location
Greater London, England, United Kingdom
reusable modules, CI/CD pipelines and policy-as-code guardrails. Leverage AI agents extensively to automate and optimise platform work - provisioning, cost and performance optimisation, incident response, remediation and documentation. Prepare the infrastructure for AI agents as first-class "engineers": safe machine identities, scoped permissions, sandboxes, approval workflows … Partner with data engineering to design and optimise data pipelines, data stores and large-scale analytics infrastructure such as BigQuery, including query, cost and performance tuning. Mentor engineers, set technical direction and champion strong platform and security engineering standards across the organisation. What you'll need to succeed: Essential ...

Data Engineer

Location
West of England, England, United Kingdom
enhance data lakes, data warehouses and storage solutions, including Azure Data Lake Storage. Develop and optimise SQL queries, data models and database objects for performance and scalability. Ensure data quality, security, governance and compliance with organisational standards. Implement CI/CD practices and support deployment automation through Azure DevOps … Microsoft Azure data services. Strong experience with Azure Data Factory, Azure Databricks, Azure Synapse Analytics and Azure Data Lake Storage. Advanced SQL development and performance tuning skills, including experience with Azure SQL Database and SQL Server. Proficiency in Python, PySpark, Scala and Spark for data processing and distributed ...

Senior DevOps Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Permanent
controls. Support the organisation's ongoing compliance and certification requirements. Reliability & SRE Establish and maintain observability across distributed systems. Develop proactive monitoring, alerting and performance-tuning strategies. Help maintain service-level objectives and platform availability. Investigate and resolve infrastructure and application incidents. Coordinate emergency changes, hot fixes … regular capacity and availability reviews. Identify opportunities for AWS cost optimisation. Make effective use of AWS Compute Optimizer, Savings Plans and Graviton . Balance performance, availability, security and cost when making infrastructure decisions. Governance & Compliance Support regular technical and security audits. Maintain infrastructure provenance and configuration records. Implement infrastructure ...