151 to 175 of 205 Performance Tuning Jobs in England

NSL – Database Administrator

Hiring Organisation
BAE Systems
Location
Greater London, United Kingdom
Employment Type
Full Time
following : AWS Database Services : Deep expertise in Amazon RDS (PostgreSQL, MySQL, SQL Server, Oracle) and Aurora , including provisioning, configuration, patching, scaling, and performance tuning. AWS Native Capabilities : Experience with backup and recovery strategies using AWS tools , automated failover, multi-AZ deployments, read replicas, and monitoring via CloudWatch . Security … roles, encryption (KMS), auditing, and patching in AWS environments. Automation and Infrastructure as Code : Using Terraform or CloudFormation to provision and manage database resources. Performance Optimization : Query tuning, indexing strategies, and troubleshooting in cloud environments. Scripting : Strong skills in Python, Bash, or Shell for automation and operational tasks. ...

Principal Engineer (SQL / C# / Trading Systems)

Hiring Organisation
Albert Bow
Location
London Area, United Kingdom
trusted to drive conversations, challenge ideas, and influence outcomes. What we’re looking for: Core strengths Deep expertise in SQL Server (architecture, optimisation, performance tuning) Strong experience in C#/.NET (or similar languages) Proven ability to think across systems, not silos Experience in front-office/trading ...

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 ...

Engineering Director

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Practical experience leading DevOps and SRE initiatives and driving best practices Experience with cryptography preferred Bonus points for each of the following: Experience with performance tuning and scaling across client, backend, infrastructure Working closely with C‐level executives to align on direction, vision and execution Having both ...

Mainframe Developer

Hiring Organisation
Webologix Ltd/ INC
Location
London Area, United Kingdom
setup and configuration (regions, JVM servers) Understanding of z/OS components used by CICS Liberty (USS, RACF, TCP/IP, SMF) Capacity planning, performance tuning, and availability (HA/DR) Problem determination using dumps, traces, SMF data, and logs WebSphere Liberty configuration (server.xml, features, shared libraries … tuning for z/OS (heap sizing, GC behaviour) Managing Java workload inside CICS (JVM servers lifecycle, diagnostics) Patching and maintaining Liberty and Java SDK levels RACF and TLS configuration (certificates, keyrings, SAF integration) REST/HTTP exposure and API enablement CI/CD awareness (bundles, pipelines, automated deployment ...

NetSuite & BI Admin

Hiring Organisation
Curvy Kate
Location
Uxbridge, England, United Kingdom
role A skilled BI Administrator to manage, maintain, and optimize our Business Intelligence (BI) platforms. You will be responsible for system administration, performance tuning, user access management, and ensuring data accuracy and security across BI tools. This role will work closely with business stakeholders to support decision-making … vendors, consultants, or developers for system improvements. BI Administrator: Maintain BI tools (ThoughtSpot, Snowflake) Manage user roles, permissions, and security settings. Ensure system uptime, performance, and reliability. Ensure data accuracy, consistency, and security across BI platforms. Monitor and troubleshoot data refresh failures and performance issues. Optimize BI dashboards ...

Senior Data Support Engineer (Apache Airflow)

Hiring Organisation
St. James's Place
Location
Gloucestershire, United Kingdom
Employment Type
Full Time
make extensive use of SaaS, IaaS, PaaS solutions. You'll be keeping abreast of key developments and continuously driving for improvements through automation and performance tuning methods that could impact our database related systems as well as changes in tools, technologies or working practices that can be exploited … storage, with the ability to diagnose root causes and resolve complex issues Experience working within cloud environments (SaaS, IaaS, PaaS) with an understanding of performance optimisation, automation and platform stability Strong stakeholder engagement skills, with experience supporting engineers, architects and business users in a fast-paced environment Ability ...

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 ...

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 ...

Principal Software Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
microservices background Hands-on experience with RabbitMQ, Kafka or similar messaging technologies xkybehq 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 ...

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
London Area, United Kingdom
will work across the full trading system stack, building and optimising the infrastructure that powers live trading at scale. Design and implement high-performance C++ systems targeting sub-microsecond and nanosecond-level latency Optimise production code for speed, reliability, and throughput under live market conditions Collaborate directly with traders … full software lifecycle in a fast-paced, results-driven environment Requirements: Strong modern C++ (C++17 or later), with commercial experience in low latency or performance-critical systems Deep understanding of multithreading, memory management, and systems-level performance tuning Solid Linux development background and familiarity with networking protocols ...

Software Engineer, Product & Platform

Hiring Organisation
Bikebook
Location
Hove, England, United Kingdom
sometimes in our mobile app. Example projects could include improving the stock adjustment workflow, building better repair job views, adding reporting for workshop performance, or improving how customers book and manage services. Platform and integrations You might work on APIs, webhooks, background jobs, realtime updates, event-driven parts … Example projects could include integrating with an ecommerce or payments provider, improving webhook reliability, or building internal tools to make integrations easier to support. Performance and reliability You might improve busy parts of the app, including React rendering, data loading, caching, observability and production debugging. Example projects could include ...

Software Engineer

Hiring Organisation
Sanderson Government and Defence
Location
Cheltenham, Gloucestershire, UK
Employment Type
Full-time
retrospectives.Ensure 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 Skills & ExperienceStrong commercial experience … with Java and Python .Front-end engineering experience using React and JavaScriptSolid 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 4-5 , demonstrating: Level 4: Ownership ...

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 ...

🚀 Mobile Developer - Fully Remote | Up to £105k | React Native, Swift, Kotlin

Hiring Organisation
Venchr
Location
Leeds, United Kingdom
Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

🚀 Mobile Developer - Fully Remote | Up to £105k | React Native, Swift, Kotlin

Hiring Organisation
Venchr
Location
Bury, United Kingdom
Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

🚀 Mobile Developer - Fully Remote | Up to £105k | React Native, Swift, Kotlin

Hiring Organisation
Venchr
Location
England, United Kingdom
Android devices Collaborate closely with design and backend teams to bring new features to life Take ownership of the full development lifecycle — from performance optimisation to app store deployment What we’re looking for: Strong commercial experience with React Native Proven track record shipping cross-platform apps (iOS + … Android) Solid grasp of mobile lifecycles, performance tuning, and deployments A passion for creating slick user experiences that delight customers Dabbled in Swift/Objective-C (iOS) or Kotlin/Java (Android) Thrived in product-driven, fast-paced environments What’s on offer: 🌍 100% remote flexibility — work from ...

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 ...

Android Developer

Hiring Organisation
JD.COM
Location
London Area, United Kingdom
commerce Android application, covering core journeys such as product browsing, shopping transactions, payment settlement, user operations and push notifications. You will continuously optimise app performance, adapt to multiple device models and system versions, support localised operations in the UK and European markets, and ensure stable and efficient product operation. … visa processing period. Key Responsibilities 1.Conduct requirement analysis, technical solution design, code development and quality assurance for the Android application 2.Lead Android architecture optimisation, performance tuning, memory management and multi-device compatibility adaptation 3.Integrate with backend service APIs, complete business joint debugging, and ensure stable network requests ...

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 ...

Senior Data Engineer

Hiring Organisation
TRIA
Location
London Area, United Kingdom
commercial and BI teams. Key Requirements: Expert experience across the Google Cloud Platform ecosystem Hands-on experience with BigQuery, including optimisation, modelling and performance tuning Proven experience building scalable data pipelines within GCP Strong knowledge of Looker and semantic layer development Experience working with Gemini Ability to design ...

Solace Middleware Engineer - London - Inside IR35

Hiring Organisation
Akkodis
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£450 - £500 per day
implement low-latency messaging patterns (pub/sub, guaranteed messaging, request/reply) Configure and optimise brokers, VPNs, queues, and topic hierarchies Drive performance tuning for ultra-low latency trading systems Integrate trading applications with messaging architecture Monitor and troubleshoot real-time message flows and latency issues Support ...

Infrastructure Engineer - Linux

Hiring Organisation
Experis
Location
Winchester, Hampshire, South East, United Kingdom
Employment Type
Contract
Contract Rate
£45,000
Collaboration: Work alongside security, development, and delivery teams to ensure alignment Red Hat Linux Operating System: Deep technical understanding of RHEL administration, troubleshooting, and performance tuning. Command Line Interface (CLI): Advanced proficiency in navigating and managing Linux environments through the CLI. Shell Scripting: Proven ability to write and debug ...

Infrastructure Engineer - Linux

Hiring Organisation
Experis
Location
Hyde, Greater Manchester, UK
Collaboration: Work alongside security, development, and delivery teams to ensure alignment Red Hat Linux Operating System: Deep technical understanding of RHEL administration, troubleshooting, and performance tuning. Command Line Interface (CLI): Advanced proficiency in navigating and managing Linux environments through the CLI. Shell Scripting: Proven ability to write and debug ...