276 to 300 of 470 Performance Tuning Jobs in England

Proofpoint SME- SC Cleared or SC Eligible

Location
Normanton on Trent, England, United Kingdom
email authentication protocols: SPF DKIM DMARC Conduct threat analysis and provide recommendations to enhance email security posture. Perform platform upgrades, health checks, troubleshooting, and performance tuning. Collaborate with SOC, Security Operations, Infrastructure, and Microsoft 365 teams on security initiatives. Develop operational procedures, knowledge articles, and technical documentation. Support audits ...

Senior Database Administrator

Location
Greater London, England, United Kingdom
estate underneath a set of business-critical, latency-sensitive financial technology products. This is a hands-on role, not an architecture-only one. Reliability, performance and resilience in production are the measure of it, and the engineering and operations teams who depend on those databases will feel the difference … autonomy, but there are people around you who know the systems. What you'll own You become the person people come to when database performance, availability, access, backups, schema changes or query behaviour needs proper thought rather than a quick fix. The days vary. MySQL tuning, replication, configuration ...

SQL Database Administrator (DBA)

Location
Leek Wootton, England, United Kingdom
Main Responsibilities Administer, configure, control, monitor and support SQL Server databases including (but not limited to) Warwickshire Police’s Records Management System. Ensure database performance, stability, and capacity meet 24/7 operational policing demands. Use database management system software and tools to analyse and investigate database problems, resolving … years of relevant experience Supporting business-critical SQL Server systems in a 24/7 environment. Managing backup, restore, and disaster recovery testing. Performance tuning of large, high-volume transactional databases. Working within formal ITIL change and incident management. Supporting systems subject to regulatory, legal, or forensic audit. ...

Database Administrator

Location
Leeds, England, United Kingdom
engineers, architects and developers to design, optimise and support resilient, secure and scalable data environments. With responsibility for monitoring critical production databases and enhancing performance across on‐premises, cloud and PaaS platforms, the role makes a significant contribution to the delivery of technology solutions that drive business success. … experience in a Database Administrator or similar data platform role Strong operational expertise in troubleshooting, incident resolution and root cause analysis Experience of database performance tuning, optimisation and capacity management Strong proficiency in Microsoft T‐SQL, including query development and optimisation Excellent communication, stakeholder management and attention ...

Principal Software Engineer

Location
Waterbeach, England, United Kingdom
looking for a Principal Software Engineer to join the team. This role is central to ensuring the reliability, performance, and scalability of systems vital for public safety and essential services. You will act as a technical leader, mentoring other engineers and driving best practices across the development lifecycle. … Responsibilities Lead the architecture, design, and implementation of high-performance, resilient, and secure communication systems using C#/.NET. Develop robust, low‐latency applications that handle high-volume data traffic (e.g., messaging queues, real‐time data processing). Drive technical vision and strategy for the platform, ensuring alignment with ...

Linux Platform Engineer

Hiring Organisation
G Research
Location
London, UK
Employment Type
Full-time
from hardening and patching through to vulnerability response, and the role offers the chance to develop deep technical expertise in Linux internals, automation and performance optimisation while contributing directly to infrastructure that supports large-scale quantitative research. Key responsibilities of the role include: Building, releasing and maintaining core Linux … Linux systems, particularly RHEL and UbuntuDeep knowledge of Linux internals, such as boot process, kernel modules, filesystems and package managementExperience with kernel optimisation and performance tuning, such as scheduler, memory and I/O, is desirableKnowledge of eBPF for observability, performance analysis and security enforcement ...

Data Engineer

Location
Greater London, England, United Kingdom
Excellent python and SQL skills Agile ways of working Experience in cloud automation and orchestration using tools such as CloudFormation or Terraform Monitoring and performance tuning of cloud-based applications and services Nice to haves: (MLOps): Model Deployment & Serving – Deploy and manage ML models using MLflow, Azure … SageMaker, or similar, ensuring scalability and performance. Monitoring & Retraining – Set up model drift detection, performance monitoring, and automated retraining ML Pipelines & CI/CD – Automate end-to-end ML workflows We expect you to have some knowledge about how to architect, design, develop, deploy, and operate a data platform. ...

Full Stack Software Engineer III - Java

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
code, and improving services built on microservices, Kafka/event-driven patterns, and CI/CD pipelines. You will troubleshoot complex production issues, drive performance and resiliency improvements, and automate recurring problems to strengthen operational stability. This role offers the opportunity to grow your technical influence, explore … scalable software that addresses ambiguous, multi-dimensional problemsOwn end-to-end engineering outcomes across design, build, test, release, and operate phases — ensuring security, resiliency, performance, and maintainability in productionSet a high bar for code quality by authoring secure production code, leading code reviews, and debugging complex cross-service issues ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
pragmatic with our outputs. Many of our early team have ambitions to be founders in the future — we view Aurora as a high‐performance startup academy, where you will personally drive the evolution of a high‐growth product from its earliest stages. Join us. Our Principles … engagement, trust, and spend of the most powerful consumer cohort in history. Opportunity Play a foundation‐role in building the future of high‐performance lifestyle management - a $100bn opportunity at the intersection of technology, luxury, and longevity. About the Founders Aurora was founded in 2024 by: Jonah Lowenstein , previously ...

Software Engineer III - Fullstack (Java, React, Python and AI) Engineer

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
with product, marketing, and partners to translate requirements into well-designed technical solutionsImprove engineering excellence through code reviews, test automation, CI/CD, observability, performance tuning, and operational best practicesEnsure solutions meet security, privacy, and compliance expectations including consent management, data minimization, and access controlsRequired Qualifications, Capabilities … work environment (e.g., for coding, test creation, troubleshooting, or documentation) with demonstrated ability to critically evaluate, validate, and refine AI-generated outputs for correctness, performance, and security. Understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency ...

Solutions Architect

Location
Greater London, England, United Kingdom
Architect is accountable for the technical architecture of the enterprise data platform, ensuring it meets the demands of a growing data estate while maintaining performance, cost efficiency, security, and alignment with enterprise architecture standards. This role will be expected to own the internal technical architecture (compute and storage design … ingestion framework patterns, data modelling standards, andaccess control architecture, platform performance and capacity planning, and establishing architectural authority, documenting design decisions, and ensuring knowledge retention within Burberry. This role defines the architecture, sets the standards, provides design governance, and ensures what is built is consistent, scalable, and aligned ...

Backend Java Developer - Birmingham • Hybrid • £50–65k • Not London

Location
Birmingham, England, United Kingdom
engines (e.g., Starburst or similar) Own API contracts with living documentation in CI/CD Build production-grade, testable pipelines Drive observability, reliability, and performance Contribute to architecture decisions (modularity, DI, extensibility) What You Bring (Must-Have) Strong hands-on experience in Java (17/21) + Spring Deep … parsing/validation, query planning/optimization Experience with SQL planners or query transformation layers Strong grounding in data structures, algorithms, and backend performance Production-grade testing using JUnit 5, Mockito Experience with clean architecture, DI, modular design Comfortable owning CI/CD, code quality, observability Familiarity with Docker ...

Backend Java Developer - Birmingham • Hybrid • £50–65k • Not London

Location
Greater London, England, United Kingdom
engines (e.g., Starburst or similar) Own API contracts with living documentation in CI/CD Build production-grade, testable pipelines Drive observability, reliability, and performance Contribute to architecture decisions (modularity, DI, extensibility) What You Bring (Must-Have) Strong hands-on experience in Java (17/21) + Spring Deep … parsing/validation, query planning/optimization Experience with SQL planners or query transformation layers Strong grounding in data structures, algorithms, and backend performance Production-grade testing using JUnit 5, Mockito Experience with clean architecture, DI, modular design Comfortable owning CI/CD, code quality, observability Familiarity with Docker ...

Data Architect, UK

Location
Brighton, England, United Kingdom
analytics services, driving digital transformation and operational excellence. Pythian, a multinational company, was founded in 1997 and started by ensuring the reliability and performance of mission‐critical databases. We quickly earned a reputation for solving tough data challenges. We were there when the industry moved from on‐premises … tasks such as collecting, parsing, managing, analyzing, and visualizing very large datasets etc. Translating complex functional and technical requirements into detailed designs. Writing high‐performance, reliable and maintainable code. Develop test automation and associated tooling needed for the project. Work with project leads to understand testing requirements and lead ...

Data Engineer

Hiring Organisation
Siamo Group Ltd
Location
Cirencester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£35,000
systems and database infrastructure Working closely with a 3rd party database design consultant Build and manage ETL processes and system integrations Monitor database performance, security, and data integrity Consolidate or build data flows Ensure compliance with data governance and GDPR requirements Conducting diagnostics tests Collaborate with IT teams … essential Strong experience with SQL Server, MySQL, or similar relational databases Experience building and maintaining ETL processes and data integrations Knowledge of database performance tuning, security, and backup procedures Understanding of data governance, GDPR, and data management best practices Experience working with APIs and integrating multiple business systems ...

HSS - Linux Sytem Administrator

Hiring Organisation
Hackajob Ltd
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
standards, policies, and procedures for continual service improvement. Role responsibilities: Provide first and second level technical support on incidents and problems Monitor overall system performance and ensure smooth system functionality Create, maintain, and utilise documentation Assist building compliance with processes and policies What you will bring to the team … Process and job control (cron, at, systemd timers) Networking fundamentals (TCP/IP, DNS, DHCP, NFS, SSH, FTP) Filesystem management (LVM, ext4, XFS, ZFS) Performance tuning and monitoring (top, vmstat, iostat, sar, netstat) Exposure to automation software such as Ansible/Puppet Knowledge of scripting with Bash, Python ...

Frontend Lead

Location
England, United Kingdom
exceptional Frontend Lead -Vue.js, Spring Thymeleaf who is highly hands-on and deeply experienced in React.js, Micro Frontend (MFE) architecture, Vue.js, Spring Thymeleaf and performance engineering . The ideal candidate will lead the development of a scalable frontend framework that supports both Server-Side Rendering (SSR) and Client-Side … Rendering (CSR) while optimizing site performance and user experience. This role involves architecting and developing a state-of-the-art frontend system that integrates seamlessly with our Backend-for-Frontend (BFF) layer, powered by Spring Boot microservices , and deployed on Google Cloud Platform (GCP) . Key Responsibilities: Design ...

Infrastructure Engineer

Location
Greater London, England, United Kingdom
ship safely and quickly. Observability & Reliability: Instrument the stack with OpenTelemetry and Datadog to ensure we detect issues before our users do. AI Performance Tuning: Tune autoscaling and network routing to handle resource-intensive LLM workloads with ultra-low latency. About Solve Intelligence We’re the fastest-growing … Dyson and Alan Turing Institute. Angus (CTO): MEng Computer Science, ex-Qualcomm and Coremont (Brevan Howard). Who You Are We are a high-performance culture of "hackers" and builders. Speed & Safety: You believe that great infrastructure is what allows application engineers to move faster. Extreme Ownership: You strive ...

Software Development Engineer III, Fiat Payments (Backend)

Location
Greater London, England, United Kingdom
CloudWatch); contribute to infra-as-code, monitoring, alerting, and on-call runbooks for payment-critical systems. Optimize the data layer: schema design and query performance in MongoDB, caching and rate-limiting strategies with Redis, and safe migration patterns for high-volume transactional collections. Participate in on-call for payment … hands‐on expertise in Node.js (TypeScript preferred) for performant, production‐grade backend services. Deep experience with MongoDB — schema design, aggregation pipelines, indexing strategy, and performance tuning at scale. Proficiency with Redis — caching, distributed locks, rate limiting, and pub/sub patterns. Proven experience designing and operating microservices architectures ...

Java Fullstack Developer, Assistant Vice President

Location
Greater London, England, United Kingdom
/API tests) and uphold strong quality gates through code reviews and CI/CD discipline. Contribute to operational readiness: logging/monitoring, performance tuning, production support, and reliability improvements for client- and operations-facing digital asset services. Work with security and platform stakeholders to ensure solutions meet … platform backends. About State Street Across the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success. ...

HPC engineer

Hiring Organisation
EUROPEAN SOFTWARE SOLUTIONS (UK) LIMITED
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Contract
Contract Rate
£450 per day
Azure) Understanding of software development methodologies (e.g., Agile, Automation, Jira, and Confluence experience) Technical Skills Solid grasp on Linux OS fundamentals, solve problems and performance tuning Good understanding of HPC infrastructure and applications Exposure to HPC workload management tools like IBM Spectrum LSF Strong scripting skills (Bash, Shell ...

Senior Data Engineer SQL Snowflake - Finance

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
have strong experience in data engineering, ideally from a software development backgroundYou have expertise with SQL and Snowflake (including query optimisation and performance tuning)You have experience with data modelling, ELT pipelines and data integrationYou can code with Python and/or C#You have experience within a finance ...

Principal Database Platform Engineer

Location
Sheffield, England, United Kingdom
deployed on IaaS or part of DBaaS. Strong understanding of consumer use case and how databases infrastructure capabilities work.• Expertise in infrastructure components, performance tuning, and capacity planning.• Understanding of, and hands on experience of, micro services, software development, infrastructure automation, api development and basic application system ...

Principal Software Engineer - Autonomy

Location
Fareham, England, United Kingdom
development Strong understanding of autonomous systems, including: Motion planning State estimation Behaviour‐based control Solid experience working with Linux, including system‐level debugging and performance tuning Knowledge of real‐time systems, distributed computing, and middleware frameworks Background delivering software in both R&D and production environments Excellent problem ...

Senior Business Intelligence Analyst

Location
Slough, England, United Kingdom
within their sector and an increasing focus on data-driven decision making. Data sits at the heart of their strategy, supporting product development, commercial performance, and operational effectiveness. With a collaborative data team and continued investment in modern analytics platforms, they are building a scalable, governed, and future-focused … initiatives, and reporting standards Acting as an escalation point for complex reporting and data challenges Collaborating with Data Engineers on data architecture, modelling, and performance optimisation Contributing to a major cloud migration programme and the wider modernisation of the analytics ecosystem Your Skills & Experience Strong commercial experience with Tableau ...