101 to 125 of 144 Performance Tuning Jobs

Ruby Developer

Hiring Organisation
Proactive Appointments
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 80,000 Annual
love to hear from you. Key Skills 4+ years' experience with Ruby on Rails Strong understanding of OOP & Rails architecture Extensive experience with PostgreSQL (performance tuning, complex queries) Background job processing with Sidekiq & Redis Expertise in RESTful APIs , JSON, JWT, SSO Experience with AWS & Docker Production system support ...

Senior Quantexa Data Engineer

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
technical authority and client interface, translating regulatory or business problems into scalable Quantexa architectures Leads teams in shaping data models, ER logic, and performance tuning across high-volume, enterprise datasets Mentors teams while influencing delivery standards, design patterns, and best practice within the workstream In order to secure ...

Quantexa Technical Lead - Senior Manager

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
technical authority and client interface, translating regulatory or business problems into scalable Quantexa architectures Leads teams in shaping data models, ER logic, and performance tuning across high-volume, enterprise datasets Mentors teams while influencing delivery standards, design patterns, and best practice across multiple workstreams In order to secure ...

Oracle Lead Developer

Hiring Organisation
Hays Technology
Location
Glasgow, City of Glasgow, United Kingdom
Employment Type
Contract
development and database design Proven experience leading development efforts or small teams Experience creating technical documentation such as TDDs Strong understanding of database performance tuning and optimisation Familiarity with version control tools (e.g. Git, SVN, PVCS) Experience with tools like JIRA and Confluence Exposure to Oracle Forms/ ...

Technical Lead - Ruby

Hiring Organisation
Run-Time Group Ltd
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Permanent
MySQL, Redis, Elasticsearch Async Processing: Sidekiq, Resque Cloud & DevOps: AWS, Heroku, Docker, CI/CD pipelines, IaC Testing & Quality: RSpec, Capybara, TDD methodologies Security, performance tuning, and system hardening AI & LLMs: API integration, prompt engineering, AI-enhanced features and developer tooling Responsibilities: Provides hands-on technical leadership ...

Principal Data Engineer

Hiring Organisation
WRK DIGITAL LTD
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
£85,000
Azure Data Factory and Azure Databricks. Competence in and hands-on experience managing Databricks environments and developing lakehouse architectures with a focus on automation, performance tuning, cost optimisation, and system reliability. Proven proficiency in programming languages such as Python, T-SQL, and PySpark, with practical knowledge of test ...

Infrastructure Engineer – Secure Browser – Azure Virtual Desktop – Expedia Group

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
Wallington, Surrey, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £439 per day
Azure Virtual Desktop & Modern Workspace Engineering Provide operational support and engineering expertise for Microsoft Azure Virtual Desktop environments, including host pool administration, image management, performance optimization, and troubleshooting Help deliver a secure, high-performing modern workspace experience for enterprise users Support virtual desktop lifecycle activities such as provisioning, patching … based end-user computing services Windows Endpoint & Core Infrastructure Support Maintain Windows 10/11 endpoints and Windows Server environments, including patching, application deployment, performance tuning, and system health monitoring Support enterprise management capabilities across Intune, Active Directory, DNS, DHCP, identity management, and related infrastructure services Troubleshoot complex ...

ServiceNow Engineer

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
aligned with platform best practices. Platform Administration Support the administration, maintenance, and optimisation of the ServiceNow platform. Manage platform upgrades, patches, releases, and performance tuning activities. Maintain platform security, data integrity, and operational stability. Troubleshoot and resolve technical issues across the platform and associated integrations. Stakeholder Engagement Collaborate … guidance and recommendations on ServiceNow capabilities and best practices. Support user acceptance testing, training, and knowledge transfer activities where required. Continuous Improvement Monitor platform performance and identify opportunities for optimisation and automation. Stay current with ServiceNow product developments, new features, and industry best practices. Contribute to platform roadmaps, enhancement ...

Field Application Engineer

Hiring Organisation
Set2Recruit
Location
Gatwick, West Sussex, South East, United Kingdom
Employment Type
Permanent
Salary
£85,000
feeding critical market requirements back into the R&D roadmap. System Optimization: Actively resolve integration challenges on the ground, ensuring display solutions achieve peak performance within diverse host environments. Required Technical Expertise Display & Touch Technologies: Deep technical understanding of LCD, OLED, and touchscreen architectures, specifically regarding their integration into … HDMI, SPI, IC, LVDS) alongside practical knowledge of PCB layout principles and EMI/EMC compliance. Software & OS Integration: Proven capability configuring and tuning display drivers across Linux, Windows, or Android platforms. Strong scripting/programming skills in C/C++ and Python are highly desirable. Optical & Performance ...

ServiceNow Developer

Hiring Organisation
Project Recruit
Location
Edinburgh, Midlothian, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
month temporary contract to start ASAP Day rate: Competitive Market rate Ensure high-quality design, maintain security/compliance protocols, and perform performance tuning to ensure stability. Define end-to-end ServiceNow architecture aligned with enterprise standards and roadmap, designing across ITIL modules (ITSM, ITOM, ITAM, CMDB … Flow Designer, Workflows, and Service Catalog development Experience with integrations using REST/SOAP APIs, MID Server, and data imports Ability to troubleshoot performance issues, script errors, ACLs, and customization conflicts Familiarity with ServiceNow upgrade planning, regression testing, and best-practice configurations Key Requirements Essential Skills: 5 - 8 years ...

Database Administrator

Hiring Organisation
Logistex
Location
Kettering, North Northamptonshire, Northamptonshire, United Kingdom
Employment Type
Permanent
smoothly? If so, you could be our next Database Administrator! What is in it for you? Become a member of an Employee-owned trust Performance bonus Cycle to work scheme Option to buy additional leave Private medical insurance What will you be doing? Manage, maintain and optimize Postgres … Oracle databases Perform upgrades, patches, backups and recovery testing Monitor performance and troubleshoot issues proactively Ensure database security, compliance and documentation Support CI/CD, DevOps and cross-functional teams What are we looking for? Proven experience as a DBA or similar role Strong knowledge of Postgres and Oracle ...

Sharepoint Administrator

Hiring Organisation
17918
Location
London, United Kingdom
Online Proven SPFx development TypeScript, JavaScript, React Experience with C#/.NET, SQL Server, and RESTful API integrations Solid on-prem admin background patching, performance tuning, troubleshooting BCS and ECT experience a strong plus Microsoft 365/Azure familiarity (Azure AD, Azure Functions) is a bonus ...

Senior Backend Engineer

Hiring Organisation
Catalyst
Location
Gateshead, Tyne and Wear, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £80,000 per annum, Negotiable, Inc benefits
context (Node.js, shared libraries, or tooling) Deep familiarity with core AWS infrastructure — Lambda, ECS/EKS and RDS/Aurora - specialised knowledge in Aurora performance tuning is a significant plus Proficiency with AWS messaging services, specifically SQS, SNS and EventBridge Strong communication skills across technical and non-technical ...

Data Warehouse Developer

Hiring Organisation
ECS Resource Group Ltd
Location
Bradford, West Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £625/day
data and reporting programme within an enterprise environment. Key responsibilities: Develop and maintain data warehouse solutions Write and optimise advanced SQL queries Support database performance tuning and optimisation Design and maintain data structures and data architecture solutions Gather requirements from business stakeholders Support ongoing data and reporting improvement ...

Senior Java Developer - Remote Trading

Hiring Organisation
Harvey Nash
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 per annum
+ PensionThis role can be done COMPLETELY REMOTELY from the UKWe are looking for: Experienced Java Back-End Software Engineers Multi-threading (GC, Memory, Performance Tuning) ideally in a trading environment Some experience with Service Modernisation, working in a modern API First and Cloud Native Experience, any experience ...

Senior Java Developer - Remote Trading

Hiring Organisation
Harvey Nash
Location
City of London, London, United Kingdom
Employment Type
Permanent
This role can be done COMPLETELY REMOTELY from the UK We are looking for: Experienced Java Back-End Software Engineers Multi-threading (GC, Memory, Performance Tuning) ideally in a trading environment Some experience with Service Modernisation, working in a modern API First and Cloud Native Experience, any experience ...

Principal Software Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£80,000
systems and microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies Proficiency with TCP/IP, gRPC and high-availability protocols Performance tuning, concurrency and multithreading expertise Docker, Kubernetes and CI/CD familiarity Relevant degree If this sounds like your next challenge, apply with ...

Senior Backend Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Nice-to-Haves: If you have a background in data engineering (think Scala, Beam, or Scio ), know your way around Protocol Buffers , or love performance tuning under heavy load, you'll stand out from the crowd. Above all, we want someone pragmatic, collaborative, and genuinely excited about shipping ...

Network Engineer 26-02424

Hiring Organisation
Sunrise Systems Inc
Location
Milwaukee, Wisconsin, United States
Employment Type
Permanent
Salary
USD Annual
Network Engineering & Support: Provide operational support for enterprise network platforms, including switching, routing, firewalls, and wireless systems. Support enterprise wireless platforms through configuration, monitoring, performance tuning, and analytics. Diagnose and resolve network incidents. Assist with the design and implementation of network enhancements aligned with architectural and security best ...

Software Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
code quality through reviews, automated testing, and engineering best practice. Maintain and improve CI/CD pipelines and deployment processes. Troubleshoot, debug, and optimise performance across services. Collaborate with product, UX, DevOps, and QA to deliver reliable, maintainable systems. Produce and maintain documentation and contribute to knowledge sharing. Essential … experience with Java and Python . Front-end engineering experience using React and JavaScript Solid hands-on experience with MongoDB including data modelling and performance tuning. Proficient with CI/CD, Git, automated testing, and modern engineering workflows. Experience delivering within Agile environments. Ability to work at SFIA Levels ...

SAP Basis Consultant - 12 Month Contract - Inside IR35 - Hybrid (London or Manchester)

Hiring Organisation
Hamilton Barnes
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
4HANA transformation programme within a complex enterprise environment. In this role, you will be responsible for managing and optimising SAP technical landscapes, ensuring system performance, stability, security, and availability across SAP S/4HANA and ECC environments while supporting ongoing brownfield transformation initiatives. Key Responsibilities Administer and support … system monitoring Support S/4HANA brownfield conversions and landscape transformation activities Manage transports, integrations, security, and technical operations Monitor and optimise SAP HANA performance, availability, and system health Support incident management, root cause analysis, and production support Work closely with functional, infrastructure, cloud, and network teams to ensure ...

Solaris Engineer - Security Clearance - Contract - Remote

Hiring Organisation
Reed
Location
Basingstoke, Hampshire, England, United Kingdom
Employment Type
Temporary
Salary
£400 - £500 per day, Inc benefits
Security Clearance to support mission-critical infrastructure across production, DR, and development environments. You will provide 3rd Line support for Solaris platforms, ensuring stability, performance, and resilience across a complex UNIX/Linux estate, while contributing to ongoing infrastructure and cloud-aligned initiatives . Key Responsibilities Deliver 3rd Line … support for Solaris UNIX systems Manage Solaris environments (patching, upgrades, performance tuning) Support virtualisation (Zones/LDOMs) Troubleshoot across Solaris, AIX, RHEL, SUSE Develop shell scripting automation (Bash/KSH) Support 24/7 production environments and DR readiness Essential Skills Strong experience in Solaris UNIX (core requirement ...

IT Infrastructure & Security Specialist (Focus Linux Server)

Hiring Organisation
AT&S Austria Technologie & Systemtechnik AG
Location
Leoben, Steiermark, Austria
Employment Type
Permanent
Salary
EUR Annual
circuit boards . AT&S industrializes leading-edge technologies for its core business segments Mobile Devices & Substrates, Automotive & Aerospace, Industrial and Medical and high-performance computing for AI applications. We are looking for talent eager to shape the future of our interconnected world . With plants in Austria, China … enterprise Linux systems supporting mission critical production environments. You will operate, maintain, and optimize Linux platforms, taking responsibility for OS and kernel patching, performance tuning, troubleshooting, and automation of operational processes. Working in close collaboration with global IT and infrastructure teams, you will contribute to reliable system operations ...

IT Applications Analyst

Hiring Organisation
Larbey Evans
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
patching, and upgrades in coordination with change management procedures Manage user access controls, including provisioning, de-provisioning, and access reviews Monitor system health and performance; initiate health checks and proactively remediate issues Respond to and resolve incidents and service requests in line with SLAs Provide break/fix troubleshooting … tools Understanding of access management, patch management, and vulnerability remediation processes Familiarity with ITIL practices (Incident, Problem, Change, and Configuration Management) Exposure to application performance tuning, cloud platforms, or scripting (e.g., PowerShell, Python ...

Android Developer

Hiring Organisation
MPOWER PLUS REZOLVE AI GROUP LTD
Location
United Kingdom
Employment Type
Permanent
knowledge of Kotlin/Java. Strong knowledge of Android SDK, Android UI design principles, patterns, and best practices Experience with offline storage, threading, and performance tuning Awesome knowledge of the open-source Android ecosystem and the libraries available for common tasks and benchmarking and optimisation Proficient in Google ...