Worrall, Sheffield, South Yorkshire, England, United Kingdom Hybrid / WFH Options
Chapman Tate Associates
This is a new role owing to recent success and growth for their diverse portfolio of products and services. You will be responsible for optimizing, managing, and scaling high-performance computing (HPC) environments. Our client are at the forefront of innovation, driving the boundaries of what's possible with high-performance computing. Their team of visionary minds and … they are the driving force behind breakthrough discoveries. Responsibilities will include: -You'll be the backbone of their computational infrastructure. Your expertise will power their supercomputing clusters, ensuring seamless performance, reliability, and scalability. -Designing, deploying, and maintaining HPC clusters for optimal performance and resource utilization. -Crafting and implementing monitoring solutions to identify and address potential issues proactively. -Collaborating … with researchers, engineers, and developers to optimize application performance and parallel computing efficiency. -Troubleshooting and resolving system, network, and software problems to keep operations running smoothly. -Implementing security measures to protect sensitive data and maintain compliance with industry standards. -Keeping abreast of the latest advancements in HPC, Linux, and virtualization technologies to drive continuous improvement. Technical and soft skills More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Lorien
expect to implement data model changes, database enhancements, and to contribute to larger projects when required. Main Tasks and Responsibilities: * Ongoing maintenance of database operations, including bug fixes and performancetuning * Intraday application-level support of database environments in close relationship with IT Production DBAs * Testing and implementation of database hardware migrations * Support and assistance to the rest … team's standards and tools · Document implemented functionality: both functional and technical · Liaise with other team members (globally) for joint developments · Design and/or execute Unit, Integration, System, Performance, Regression and Acceptance tests Carbon60, Lorien & SRG - The Impellam Group STEM Portfolio are acting as an Employment Business in relation to this vacancy. More ❯
Chicago, Illinois, United States Hybrid / WFH Options
Paul Murphy Associates
platform used by professional derivatives traders worldwide. This award-winning platform features advanced tools for spread trading, strategy development, algorithmic execution, high-frequency trading, and more, all built for performance and innovation. What Will You Be Involved With? Code day to day in C++ and other programming languages Design and implement software requirements and new product features Enhance and … of solid modern C++ development experience and the ability to understand, write, review and debug multithreaded code is required Proven experience in multi-threaded applications with a focus on performance is required Experience with Linux operating systems is required Experience with financial trading systems experience is a plus but not required Strong object-oriented design and programming skills Ability … to understand business requirements and translate them into technical requirements and working application code Familiarity with agile/iterative development methodologies Solid debugging and performancetuning skills Knowledge of relational database technology, and non relational databases (Cassandra, MongoDB etc) is desirable. Additional Desired Skills Scala proficiency: Demonstrated experience leveraging Scala for complex data processing and application development. Kafka More ❯
City of London, London, United Kingdom Hybrid / WFH Options
REC SOLUTIONS LIMITED
openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯
City of London, London, United Kingdom Hybrid / WFH Options
REC SOLUTIONS LIMITED
openness, and excellence. My client work in a collaborative style and take collective responsibility for successes and our failures. We value: High personal integrity Innovative thinking Efficient and reliable performance Spark You will join a supportive team, where we aim to recruit the best people from all walks of life and diverse business backgrounds. If these sentiments align with … the day-to-day operations of the Linux infrastructure team, including both senior-level system administrators and the Linux support desk staff. This role ensures the stability, security, and performance of mission-critical Linux-based systems including multiple exchanges as well as providing strategic direction, operational excellence, effective team leadership and close collaboration with other departments Responsibilities and Duties … initiatives. Assist with planning, management and resource allocation of inter-departmental projects alongside the PM team. Oversee incident management, root cause analysis, and rapid resolution of system outages or performance degradation. Ensure compliance of procedures such as change management, patch management and security and audit processes. Assist in the maintenance of these procedures. Support regular security audits and penetration More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
migrations, and upgrades (remote & on-site) Collaborate with sales/pre-sales teams to scope and propose technical solutions Develop high-quality documentation (designs, runbooks, guides) Provide advanced troubleshooting & performancetuning Stay ahead of emerging threats, vendor updates, and security trends Conduct client training & knowledge transfer sessions Skills You’ll Need: 3+ years in Professional Services, Network Security More ❯
hardware/software faults in high-availability (HA) environments. Collaborate with Dell teams to assess infrastructure designs and solutions. Produce and maintain build/configuration documentation. Lead technical troubleshooting, performancetuning, and system integration. Supervise implementation teams and provide technical guidance. Evaluate emerging technologies and suggest improvements. Ensure robust monitoring, backup, and disaster recovery processes. Essential Skills & Experience More ❯
Wokingham, Berkshire, South East, United Kingdom Hybrid / WFH Options
Queen Square Recruitment Limited
hardware/software faults in high-availability (HA) environments. Collaborate with Dell teams to assess infrastructure designs and solutions. Produce and maintain build/configuration documentation. Lead technical troubleshooting, performancetuning, and system integration. Supervise implementation teams and provide technical guidance. Evaluate emerging technologies and suggest improvements. Ensure robust monitoring, backup, and disaster recovery processes. Essential Skills & Experience More ❯
Birmingham, Staffordshire, United Kingdom Hybrid / WFH Options
Counter Terrorism Policing
teams to assist in delivering patch/release of applications while coordinating vendor support. Maintaining middleware such as; IIS, MS-SQL Server, Active Directory, ASP and. NET, including troubleshooting, performancetuning, basic querying and resolving bottlenecks. Daily support of COTS and WEB based software applications with an emphasis on the ability to problem solve. Strong customer focus - understanding More ❯
enterprise APIs and commercial experience with: SQL and NoSQL databases Containerisation Working in a continuous delivery environment Distributed and horizontally scalable systems Observability and monitoring tools Triaging production issues Performancetuning of JVM apps Nice to have Not vital, but you'll have the edge if you also have experience with: Kotlin Prometheus Query Language (PromQL) Grafana Prometheus More ❯
Annapolis Junction, Maryland, United States Hybrid / WFH Options
GTSC Talent Solutions
Tools Management Specialist System Engineer to support our customer in the Annapolis Junction, MD area. You will be involved in service monitoring and Management, continuously monitoring the availability and performance of Splunk, SCCM, Micro Focus, and 1E. You will manage and execute patching activities across the enterprise. You will work with performance analytics to aid you in … making recommendations for performance improvements and security enhancements. You will play a key role in issue remediation, and security compliance. You will also document your work and prepare and present reports to management. Mission: As a System Engineer on this government program, you will be supporting important systems to support efforts to keep our country safe. Requirements: U.S. Citizenship … cloud security principles and best practices Excellent communication skills, both verbal and written, with the ability to explain technical concepts to non-technical stakeholders. Experience with monitoring tools and performance tuning. Familiarity with security compliance standards and best practices. Patch Management experience. Good Problem Solving and Critical Thinking Skills Desired Requirements Experience with scripting and automation (e.g., PowerShell) Mission More ❯
East London, London, England, United Kingdom Hybrid / WFH Options
RGH-Global
serverless architecture, MySQL, distributed systems, infrastructure as code, and extensive AWS experience. As a key member of their development team, you will be responsible for building and maintaining high-performance, scalable backend systems. Your role will include designing, developing, and maintaining cutting-edge backend solutions, as well as mentoring junior developers. Responsibilities Design and implement serverless backend solutions using … architectural decisions, and codebase to ensure knowledge sharing and system reliability. Optimise database schemas, queries, and indexes for efficient data storage and retrieval. Implement caching strategies to enhance system performance and reduce latency. Required Skills Proficiency in Node.js development with a deep understanding of its core principles and ecosystem. Extensive experience in designing and building serverless architectures using AWS … Gateway, and related services. Strong knowledge of distributed systems and the ability to design scalable, fault-tolerant applications. Expertise in working with MySQL databases, including design, query optimisation, and performance tuning. Significant experience with AWS services, including S3, DynamoDB, SQS, SNS, IAM, Athena, and CloudWatch. Desirable Skills Familiarity with containerisation technologies (e.g., Docker). Understanding of CI/CD More ❯
standardization Build and manage CI/CD pipelines with Jenkins, GitHub Actions, or AWS Code Pipeline Perform administrative and troubleshooting tasks on Linux-based systems, including log analysis and performance tuning. Lead technical triage and root cause analysis for infrastructure-related issues Develop and deploy applications using Docker and AWS FARGATE Use CloudWatch, CloudTrail, and third-party tools like … Datadog for performance and cost efficiency Configure AWS networking (VPCs, TGWs), enforce governance via AWS Config and tagging policies Maintain architecture diagrams, SOPs, and collaborate across engineering and product teams Should this role speak to you, kindly send a copy of your latest CV to naushad.c@rpint.com More ❯
City of London, London, United Kingdom Hybrid / WFH Options
RP International
standardization Build and manage CI/CD pipelines with Jenkins, GitHub Actions, or AWS Code Pipeline Perform administrative and troubleshooting tasks on Linux-based systems, including log analysis and performance tuning. Lead technical triage and root cause analysis for infrastructure-related issues Develop and deploy applications using Docker and AWS FARGATE Use CloudWatch, CloudTrail, and third-party tools like … Datadog for performance and cost efficiency Configure AWS networking (VPCs, TGWs), enforce governance via AWS Config and tagging policies Maintain architecture diagrams, SOPs, and collaborate across engineering and product teams Should this role speak to you, kindly send a copy of your latest CV to naushad.c@rpint.com More ❯
Gillingham, Kent, United Kingdom Hybrid / WFH Options
Proactive.IT Appointments Limited
Engineer to join our clients IT team in Gillingham on a hybrid basis. You'll play a key role in maintaining and evolving their infrastructure, ensuring stability, security, and performance across their systems. Key Responsibilities Support and manage infrastructure solutions in a hybrid environment (on-premise and cloud). Monitor, troubleshoot, and maintain systems and applications to ensure operational … procedures and contribute to the continuous improvement of internal processes. Key Technical Skills/Experience Required Active Directory - GPOs, authentication protocols, domain controller support. VMWare - ESXi, vCenter, troubleshooting and performance tuning. VEEAM Backup - Configuration, support and recovery processes. SolarWinds - Monitoring and alerting systems. Core Network Services - DNS, DHCP, domain controller management. Windows Server - In-depth knowledge of Server and More ❯
Gillingham, Kent, England, United Kingdom Hybrid / WFH Options
Proactive Appointments
Engineer to join our clients IT team in Gillingham on a hybrid basis. You’ll play a key role in maintaining and evolving their infrastructure, ensuring stability, security, and performance across their systems. Key Responsibilities Support and manage infrastructure solutions in a hybrid environment (on-premise and cloud). Monitor, troubleshoot, and maintain systems and applications to ensure operational … procedures and contribute to the continuous improvement of internal processes. Key Technical Skills/Experience Required Active Directory – GPOs, authentication protocols, domain controller support. VMWare – ESXi, vCenter, troubleshooting and performance tuning. VEEAM Backup – Configuration, support and recovery processes. SolarWinds – Monitoring and alerting systems. Core Network Services – DNS, DHCP, domain controller management. Windows Server – In-depth knowledge of Server More ❯
for a strong Data Engineer with Azure (Including ADF, Azure Data Factory) experience. A large part of the role will be to deliver the Data Pipeline Development and subsequent Performance Tuning. Building ETL processes using Azure Data Factory. We are looking for skills in the following areas - Azure including Azure Data Factory and Azure SQL Database - ETL (Extract, Transform More ❯
them into effective ERP solutions Configuring ERP platforms (SAP, Oracle, Dynamics, NetSuite, etc.), managing integrations and customisations Supporting data migration, user training, and documentation Providing post-implementation troubleshooting and performance tuning. We’re Looking for Someone With: Demonstrable ERP implementation experience within consultancy or in-house roles Hands-on expertise across finance, supply chain, or manufacturing modules Excellent stakeholder More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
Contract Role: Mainframe Performance and Capacity Analyst - Banking - Inside IR35 Location: UK (Remote) or Denmark (Hybrid - 10 days/month onsite) Rate: £475-£575/day (Inside IR35, via umbrella) Duration: 6 months+ Start: ASAP Client: Global Consultancy, End Client in the Banking Sector Salt is working with a global consultancy delivering high-level mainframe optimisation services to a … major banking client . We are recruiting an experienced Mainframe Performance and Capacity Analyst to support proactive tuning and capacity planning across critical z/OS environments. This role sits within a Performance Competence Centre, with responsibility for system and application performance diagnostics, workload forecasting, and tooling optimisation. Key Responsibilities: Monitor, analyse, and tune mainframe system … and application performance Conduct capacity forecasting and support infrastructure provisioning Lead performance data analysis and reporting using SMF, RMF, WLM Develop and maintain custom tooling and dashboards Liaise with technical teams to prevent capacity-related issues Create documentation, reports, and performance improvement plans Essential Skills: 7+ years' experience in mainframe performancetuning and capacity planning More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Salt Search
You will be responsible for maintaining a stable, secure, and highly available DB2 environment within a large-scale SysPlex setup . This includes performing upgrades, supporting disaster recovery, and tuning for performance. Key Responsibilities: Install, upgrade, and customise DB2 and related mainframe tooling Perform diagnostics, root cause analysis, and issue resolution Support disaster recovery, performancetuning , and … Skills: 7+ years of DB2 systems programming in a mainframe environment Experience in large data sharing SysPlex setups Strong troubleshooting across both infrastructure and DB2 layers Proven capability in performancetuning , monitoring, and system stability Desirable Skills: Experience with IDAA , CDC Replication , or DB2 replication tooling Exposure to 24/7 banking production environments Familiarity with parallel Sysplex More ❯
You will be responsible for maintaining a stable, secure, and highly available DB2 environment within a large-scale SysPlex setup . This includes performing upgrades, supporting disaster recovery, and tuning for performance. Key Responsibilities: Install, upgrade, and customise DB2 and related mainframe tooling Perform diagnostics, root cause analysis, and issue resolution Support disaster recovery, performancetuning , and … Skills: 7+ years of DB2 systems programming in a mainframe environment Experience in large data sharing SysPlex setups Strong troubleshooting across both infrastructure and DB2 layers Proven capability in performancetuning , monitoring, and system stability Desirable Skills: Experience with IDAA , CDC Replication , or DB2 replication tooling Exposure to 24/7 banking production environments Familiarity with parallel Sysplex More ❯
We are looking for a Senior Fullstack Developer to design, build, and optimize robust, high-performance, and scalable web applications. You will work across the entire development stack, from user interface to backend integration, collaborating closely with technical teams, product owners, and designers. Your Responsibilities Develop user-friendly, efficient interfaces using Angular and CSS . Design and implement backend … automated testing for both front-end (Jasmine, Karma) and back-end components. Work with DevOps teams to integrate your developments into the CI/CD pipeline. Continuously optimize application performance , both client-side and server-side. Participate in the development and deployment of mobile apps (Google Play & App Store). Collaborate with business stakeholders to translate functional needs into … fullstack development , with strong skills in Angular (front-end) and Java/Spring Boot (back-end). Excellent command of web development and front-end integration (CSS, responsive design, performancetuning). Strong experience in automated testing with Jasmine and Karma. Solid understanding of Java ecosystems and service-oriented architectures (REST, microservices). Proficient with CI/CD More ❯
Required: Extensive experience of React, including performancetuning Extensive experience of TypeScript, as well as modern JavaScript features Extensive experience developing mobile apps and websites using React Native and Expo Extensive experience debugging native app builds for native platforms: iOS (Xcode) and Android (Gradle) Deep understanding of native app and web security models, i.e. token storage, biometric encryption … tokens and shared components Frontend integration using Azure B2C or a similar OAuth IDP Unit testing Nice to have: C# .Net API development Backend app debugging via App Insights Performance testing using JMeter Writing and maintaining Azure DevOps pipeline scripts" Start Immediately Hybrid - 2-3 days onsite if in Ireland Remote works if other location More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Proactive Appointments
a permanent basis. Please note, the role is Hybrid, with 2 days required on-site each week. You will play a key role in network troubleshooting, security enhancements, and performancetuning, while collaborating with cross-functional teams to support business continuity and IT modernization initiatives. You will be rewarded with an excellent salary, as well as a brilliant … intrusion prevention systems Familiarity with network automation (Python, Ansible) and monitoring tools (SolarWinds, PRTG, Wireshark) Strong problem-solving and troubleshooting skills, with the ability to analyse packet captures and performance logs Network Engineer – Hybrid Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered More ❯
architectures. Oversee integration of third-party systems, middleware, and legacy applications into the S/4 HANA environment. Provide expert guidance on SAP best practices, tools, and methodologies. Support performancetuning, data migration strategy, and cutover planning. Ensure alignment with enterprise architecture standards and compliance with security policies. Requirements: Proven experience as an SAP Technical Architect with a More ❯