226 to 250 of 527 Performance Tuning Jobs in the UK

Senior Site Reliability Engineer

Hiring Organisation
London Stock Exchange Group
Location
Nottingham, UK
Employment Type
Full-time
evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health. Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns. Partner with Security teams to ensure our platforms meet compliance, security, and risk‐management expectations. Influence architectural ...

Lead Site Reliability Engineer

Hiring Organisation
London Stock Exchange Group
Location
Nottingham, Nottinghamshire, United Kingdom
Salary
£ 70 K
evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health.Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns.Partner with Security teams to ensure our platforms meet compliance, security, and risk‐management expectations.Lead seamless handovers from project delivery ...

Lead Site Reliability Engineer

Hiring Organisation
London Stock Exchange Group
Location
Nottingham, UK
Employment Type
Full-time
evolve monitoring and alerting solutions that improve visibility, reduce toil, and strengthen system health. Continuously drive reliability improvements across our environments through incident reduction, performance tuning, and building resilient patterns. Partner with Security teams to ensure our platforms meet compliance, security, and risk‐management expectations. Lead seamless handovers ...

Senior Data Engineer - Databricks

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£575 per day
pipelines using PySpark, SQL, and Delta Lake. Mentor and guide junior data engineers, promoting best practices in code quality, CI/CD, and performance tuning. Collaborate with data architects, analysts, and stakeholders to translate business requirements into technical data solutions. Ensure data security, governance, and quality standards are maintained ...

Lead C++ / Java Developer

Hiring Organisation
London Stock Exchange Group
Location
London, UK
Employment Type
Full-time
maintain C++ and Java services supporting FX matching and trading workflows. Own technical delivery for key platform components, ensuring alignment with LSEG architectural principles, performance standards, and operational controlsBuild and evolve low‐latency, high‐availability systems handling high message volumes and time‐critical processing. Ensure systems meet non‐functional … across production, QA, and client environments, including root‐cause analysis of cross‐system failures. Improve code quality and maintainability through clean design, automated testing, performance tuning, and controlled refactoring. Integrate and manage dependencies on messaging platforms, data distribution systems, and upstream/downstream market infrastructure. Evaluate and adopt ...

Senior Manager- Software Engineering

Location
Greater London, England, United Kingdom
influence the design of secure, scalable, and resilient infrastructure while cultivating top engineering talent. What You’ll Do: Architect and design scalable, resilient, high‐performance backend systems and platforms in AWS, prioritizing reliability, security, and cost efficiency. Contribute hands‐on to key initiatives—including design reviews, prototyping, coding, performance tuning, and debugging—typically 30% of your time, while mentoring engineers and establishing high standards. Lead cross‐team technical initiatives; drive design forums, establish engineering guardrails, and ensure high‐quality delivery via code reviews and automation. Partner closely with Product, Design, Data Science, and Platform teams to define ...

Senior Director of Corporate Applications

Hiring Organisation
IRIS
Location
Slough, Berkshire, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
footprint, reducing tool sprawl and duplicate functionality. Develop and execute modernization, consolidation, and platform convergence plans across legacy and current-generation systems. Application Reliability & Performance Use Datadog (or equivalent) monitoring to proactively detect issues, identify emerging trends, and deflect incidents before they impact the business. Own application performance tuning and capacity planning across the corporate applications estate, ensuring systems remain fast, stable, and reliable at scale. Establish clear incident management, escalation, and post-incident review processes for corporate systems. Configuration Discipline & Platform Governance • Champion a configuration-first approach on hosted SaaS platforms, resisting unnecessary customization ...

Senior Software Engineer – Real-Time Data Platform

Hiring Organisation
Morningstar
Location
London, United Kingdom
Salary
£ 80 K
RoleYou’ll be working on a distributed, event-driven platform responsible for processing billions of market data messages per day. This is a high-performance environment where reliability, scalability, and correctness are essential.Our platform acts as the backbone of the business, ensuring that accurate and timely market data flows … build cloud-native, highly available systems.Define and manage infrastructure using Terraform.Implement CI/CD pipelines and deployment workflows using tools like Harness.Optimise systems for performance, latency, throughput, and cost.What We’re Looking ForExcellent collaboration and communication skills.Strong experience in distributed systems and event-driven architectures.Hands-on experience with: Apache ...

Senior Software Engineer - Real-Time Data Platform

Hiring Organisation
Morningstar
Location
London, UK
Employment Type
Full-time
RoleYou'll be working on a distributed, event-driven platform responsible for processing billions of market data messages per day. This is a high-performance environment where reliability, scalability, and correctness are essential. Our platform acts as the backbone of the business, ensuring that accurate and timely market data … highly available systems. Define and manage infrastructure using Terraform. Implement CI/CD pipelines and deployment workflows using tools like Harness. Optimise systems for performance, latency, throughput, and cost. What We're Looking ForExcellent collaboration and communication skills. Strong experience in distributed systems and event-driven architectures. Hands ...

UniData/ UniVerse Data Engineer (Remote)

Location
United Kingdom
period commission runs and ensure accurate and timely processing. Develop reconciliation and audit processes to validate commission calculations and financial outputs. Analyze and improve performance of large UniData/Universe files and batch processes. Integrate UniData/Universe data with external applications, databases, APIs, reporting platforms, and downstream systems. … Participate in production support, root-cause analysis, incident resolution, and performance tuning. Maintain technical documentation for data structures, compensation rules, interfaces, and processing workflows. Collaborate with QA teams to develop test scenarios covering complex compensation-plan rules and edge cases. Required Qualifications: 8+ years of experience in UniData/ ...

DATACOM SME (Data Communication Subject Matter Expert; all genders)

Hiring Organisation
NTT DATA
Location
London, United Kingdom
Salary
£ 80 K
networking and data communication technologies. The ideal candidate will be responsible for designing, implementing, optimizing, and supporting complex network infrastructures while ensuring high availability, performance, scalability, and security. The role requires close collaboration with infrastructure, security, cloud, and operations teams to deliver reliable and efficient networking services.In this role … solutions.Provide subject matter expertise for LAN, WAN, WLAN, SD-WAN, VPN, and Data Center networking technologies.Lead network transformation and modernization initiatives.Perform network capacity planning, performance tuning, and optimization.Troubleshoot complex network issues and drive root cause analysis.Collaborate with Infrastructure, Security, Cloud, and Application teams to ensure seamless connectivity ...

Database Administrator (DBA)

Hiring Organisation
Technify Talent Limited
Location
Reading, Berkshire, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum
complex, high-availability database environment that supports a sophisticated operational software platform. This is an opportunity to join an innovative engineering team where reliability, performance and automation are central to delivering cutting-edge technology. Working closely with software engineers, platform specialists and data teams, you'll ensure the database … production MariaDB/MySQL databases. Develop and manage robust database schema migrations with safe deployment, validation and rollback processes. Monitor, analyse and optimise database performance in high-volume, write-intensive environments. Design and maintain backup, recovery and data retention strategies, regularly validating restore processes. Implement and maintain database security ...

Database Reliability Engineer

Hiring Organisation
Starling Bank
Location
London, United Kingdom
Salary
£ 80 K
Fleet: Ensure the rock-solid reliability of our existing RDS footprint. You will architect automated strategies for seamless, multi-version upgrades and proactive performance tuning to minimize downtime across hundreds of instancesArchitect Cross-Cloud Portability: Use CNPG and cloud-native patterns to ensure our database layer remains provider … GCPEvolve Observability & Monitoring: Build deep, proactive monitoring and alerting for our global database fleet. You will ensure we have the visibility to detect performance regressions and health issues before they impact our customersSupport Replication & Mobility: Support data streaming and "Zero-Downtime" migration strategies, ensuring data consistency and availabilityFortify Business ...

SIEM Security Engineer

Location
Birmingham, England, United Kingdom
vendors. SIEM Solution Development Collaborate with security analysts and architects to design and implement SIEM solutions using Elasticsearch. Continuously improving threat detection capabilities by tuning and optimising existing use cases and retiring use cases no longer providing value. Query Optimization and Performance Tuning Designing, implementing and managing … cases across a range of technologies to ensure timely alerting of security events and incidents to Security Operations staff. Monitor and manage the performance of the SIEM infrastructure. Security Engineering Contribute to security engineering projects, transitions, and transformations. Work closely with security operations and associated security incident response systems ...

Database / Data Engineer

Hiring Organisation
Avanti
Location
St. Albans, Hertfordshire, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £55,000 per annum
Database/Data Engineer £50,000 - £55,000 | Fully Remote, UK | Permanent Are you a Database or Data Engineer who enjoys finding performance problems and designing better solutions, rather than simply maintaining databases? We’re working with a growing technology company operating a high-volume, real-time data platform. … DynamoDB and AWS. This isn't a traditional DBA position. You'll work closely with developers and DevOps to understand existing data flows, identify performance issues and improve how applications access and retrieve data. Your responsibilities will include: Optimising PostgreSQL queries, indexes and database structures Investigating slow queries ...

AI Compiler Optimization Engineer

Location
City of Edinburgh, Scotland, United Kingdom
this exciting journey and drive your career forward. Job Summary We are seeking a skilled AI Compiler Optimization Engineer to optimize AI model inference performance through advanced compiler technologies. You will focus on performance tuning for CPU or hybrid CPU/XPU heterogeneous architectures, profiling AI frameworks … discover new optimization opportunities, and delivering cutting-edge insights from industry research. Key Responsibilities: Compiler-Based Performance Optimization: Implement compiler techniques (e.g., MLIR level optimizations, LLVM backend optimizations) to enhance inference performance on CPU and CPU/XPU hybrid systems Optimize JIT level compute graphs with operator fusion ...

Senior VMWare Engineer

Location
Greater London, England, United Kingdom
solid understanding of networking, storage, and automation within enterprise-scale environments. Key Responsibilities Design, implement, and manage VMware-based virtual infrastructure, ensuring high availability, performance, and scalability. Administer VMware vSphere, ESXi hosts, vCenter, and associated tools to maintain a stable and secure environment. Manage and optimize virtual networking, storage … Azure). Collaborate with cross-functional teams to ensure robust infrastructure alignment with business needs. Maintain documentation, adhere to best practices, and participate in performance tuning and capacity planning. Required Skills & Experience Minimum 5 years of continuous UK residency . 5+ years of proven experience in VMware infrastructure ...

Senior AI Platform Engineer

Hiring Organisation
IQVIA
Location
London, United Kingdom
Salary
£ 80 K
planning and execution of LLM initiatives and translating research requirements into scalable engineering solutions.Partner with centralised infrastructure teams to design and deliver high-performance compute environments across AWS and on-premises platforms, including GPU infrastructure, Slurm clusters, and migration from ad hoc research workflows.Optimise LLM training and inference workloads … supporting research and product teams in maximising performance, scalability, and reliability across the infrastructure stack.Establish and maintain model and data lifecycle capabilities, including dataset versioning, lineage tracking, reproducibility standards, and integration with model registries.Lead the evolution of knowledge graph infrastructure, driving technology selection, migration strategies, performance optimisation ...

Fabric BI Developer MS Fabric Power BI Crewe 50k

Location
United Kingdom
insights clearly. Data Management & Optimisation: Utilise strong SQL skills for data manipulation, querying, and validation while implementing robust ETL/ELT processes and troubleshooting performance bottlenecks across datasets. Champion Data Governance: Ensure high standards of data quality, data integrity, security, and BI platform best practices across all deliverables. Continuous … operation, management, or usage of Microsoft Fabric to deliver data solutions. Advanced Power BI & SQL Skills: Expertise in DAX, Power Query, semantic modelling, report performance tuning, and writing complex SQL queries for data validation. Strong Stakeholder & Communication Skills: Confident in leading requirement workshops, pushing back constructively, and explaining ...

Fabric BI Developer MS Fabric Power BI Crewe 50k

Hiring Organisation
Langley James Limited
Location
Crewe, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
insights clearly. Data Management & Optimisation: Utilise strong SQL skills for data manipulation, querying, and validation while implementing robust ETL/ELT processes and troubleshooting performance bottlenecks across datasets. Champion Data Governance: Ensure high standards of data quality, data integrity, security, and BI platform best practices across all deliverables. Continuous … operation, management, or usage of Microsoft Fabric to deliver data solutions. Advanced Power BI & SQL Skills: Expertise in DAX, Power Query, semantic modelling, report performance tuning, and writing complex SQL queries for data validation. Strong Stakeholder & Communication Skills: Confident in leading requirement workshops, pushing back constructively, and explaining ...

Oracle DBA

Hiring Organisation
Atos
Location
Manchester, Greater Manchester, United Kingdom
Salary
£ 60 K
Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements.With more than 54,000 employees … broad business scope.Market Leadership – Be part of an industry-leading organization driving innovation and growth.Role purposeProvides database engineering and administration for the migration — building, tuning and migrating databases (notably Oracle) into the cloud platform while protecting data integrity.Key responsibilitiesBuild, configure and administer database environments on the target platform.Execute data ...

CNI Infrastructure Engineer

Hiring Organisation
National Grid
Location
Warwick, Warwickshire, United Kingdom
Salary
£ 55 K
resilient networking environments across LAN/WAN, SD-WAN, VLANs, BGP/OSPF, VPNs, load balancers, and firewalls Support platform reliability through monitoring, troubleshooting, performance optimisation, and capacity planning Contribute to incident response, root cause analysis, and 24/7 on-call support where required Drive automation of operational … willingness to automate anything that can (and should!) be automated.Strong, hands‐on experience with Linux systems in enterprise environments, including installation, configuration, administration, troubleshooting, performance tuning, patching, and security hardening.Strong knowledge of Active Directory Domain Services, with the ability to design, manage, and troubleshoot directory‐based environments.Hands ...

Software Architect - .NET / Automation Systems

Hiring Organisation
Computer Futures
Location
Nottingham, Nottinghamshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 90,000 Annual
artefacts and architecture documentation (including ADRs) Make key technical decisions across persistence, messaging, caching, and integration patterns Ensure solutions meet non-functional requirements including performance, scalability, availability, and security Troubleshoot and resolve complex system issues, including concurrency, bottlenecks, and integration failures Systems Integration Own and define integration patterns between … technical authority in client workshops, design reviews, FAT/SAT, and commissioning phases Provide support during go-live activities, including system tuning, troubleshooting, and stabilisation Collaborate with delivery and project teams to ensure integration success Maintain a calm, solution-focused approach in high-pressure live environments Technology Strategy & Governance ...

Data Engineer (Snowflake & Kafka)

Hiring Organisation
Lorien
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£0 per annum
with Kafka concepts (producers, consumers, topics) and ability to integrate with streaming data pipelines. Solid understanding of data modelling , ETL/ELT processes, and performance optimization. Programming & Engineering Skills Proficiency in Python for data engineering tasks and automation. Ability to design and implement scalable, maintainable data pipelines . Experience … cloud-native environments and following security/compliance standards. Nice-to-Have Exposure to streaming data architectures and event-driven systems. Knowledge of Snowflake performance tuning and cost optimization. If you find this opportunity intriguing and aligning with your skill set, we welcome the submission of your ...

Operations Engineering Manager (m/f/d)

Location
Greater London, England, United Kingdom
Operations Engineers. Set clear goals, priorities, and expectations for the team. Manage workload and resource allocation across the team. Support regular 1:1s, performance reviews, and development plans. Build a collaborative team culture focused on ownership and accountability. Operational Ownership & Reliability Own the reliability, performance, and availability … environments (NVIDIA GPUs, InfiniBand/RDMA, parallel file systems). Scripting skills in Python and/or Bash for automation and tooling. Understanding of performance tuning for HPC/GPU systems. Experience with CI/CD pipelines and modern DevOps tooling. Background designing or improving on‐call rotations ...