676 to 700 of 713 Performance Tuning Jobs

Mainframe Datacom Engineer - IBM Z

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
Reading, Berkshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
desirable. Key Responsibilities Administer and support Broadcom Datacom/CA Datacom databases on z/OS. Perform database provisioning, configuration, monitoring, capacity planning and performance tuning. Undertake backup, recovery, reorganisation and database maintenance using Datacom utilities. Monitor availability and proactively resolve database and application performance issues. Support incident … ISPF, SDSF, CICS, VSAM and RACF . Support COBOL-based applications and troubleshoot database/application issues. Assist with application releases, technical design and performance optimisation. Participate in disaster recovery and business continuity exercises. Contribute to mainframe modernisation, automation, API enablement, CI/CD and DevOps initiatives. Identify opportunities ...

Lead Data Analytics Engineer

Location
Slough, England, United Kingdom
testing. Detailed Job Description Key Responsibilities Build and maintain scalable modular data models using dbt inside Snowflake. Transition complex, unoptimised Teradata views into high-performance Snowflake tables. Implement data quality testing, version control (Git), and CI/CD pipelines for analytics code. Manage Snowflake warehouse optimization, access controls (ABAC … query performance tuning. Technical Requirements Core Platforms: Expert Snowflake knowledge and advanced dbt (Core/Cloud) experience. Modeling Concepts: Semantic Modeling, Dimensional Modeling (Kimball), Business/Logical/Physical Modelling. Skills: Software engineering mindset applied to SQL; git workflows, and automated testing. #J-18808-Ljbffr ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Location
Glasgow, Scotland, United Kingdom
site reliability practices to cutting-edge AI platforms. You'll work hands‐on with cloud and Kubernetes-based deployments, deep observability, and cost‐aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
Hackajob Ltd
Location
Paisley, Renfrewshire, UK
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Hiring Organisation
Hackajob Ltd
Location
Milton, Cambridgeshire, UK
site reliability practices to cutting-edge AI platforms. You'll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you'll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

SQL Database Developer

Location
Evercreech, England, United Kingdom
role is a good fit for someone with hands-on SQL Server development experience who is comfortable working across database development, reporting, ETL, and performance tuning. The right person should be able to take ownership of assigned work, prioritize deadlines, communicate clearly with IT and business stakeholders, and contribute … maintain SSRS reports and write ad hoc queries for business and IT needs. Design, update, and support relational database models and schemas. Tune query performance, troubleshoot database issues, and recommend improvements to existing processes and the overall platform. Follow IT best practices while collaborating with team members, team leads ...

Lead Site Reliability Engineer

Location
London, United Kingdom
multi-year convergence and modernization journey. You will play a pivotal role in shaping our next-generation SRE patterns, reliability frameworks, observability strategy, and performance engineering capabilities across globally distributed systems. This role is ideal for an SRE specialist who thrives in fast-paced front-office environments, enjoys direct … software engineering team, participating in daily standups and design discussions. Contribute directly to the codebase (Java, Kotlin, Python) to implement reliability improvements, performance optimisations, bug fixes, and automation. Lead the design and rollout of modern SRE patterns across trading systems, including automated remediation, self healing workflows, and resilience engineering. ...

Lead Site Reliability Engineer

Hiring Organisation
Hackajob Ltd
Location
Westminster, Greater London, UK
multi-year convergence and modernization journey. You will play a pivotal role in shaping our next-generation SRE patterns, reliability frameworks, observability strategy, and performance engineering capabilities across globally distributed systems. This role is ideal for an SRE specialist who thrives in fast-paced front-office environments, enjoys direct … software engineering team, participating in daily standups and design discussions. Contribute directly to the codebase (Java, Kotlin, Python) to implement reliability improvements, performance optimisations, bug fixes, and automation. Lead the design and rollout of modern SRE patterns across trading systems, including automated remediation, self healing workflows, and resilience engineering. ...

Full Stack Lead Software Engineer

Hiring Organisation
JP Morgan Chase
Location
Glasgow, UK
Employment Type
Full-time
software development tools (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security. Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence … scalable backend services using Python (FastAPI) and modern API patterns. Build and integrate services with AWS RDS (PostgreSQL), including schema design, query optimization, and performance tuning.J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world's most prominent corporations, governments, wealthy individuals ...

Security Analytics Engineer

Location
Greater London, England, United Kingdom
turn raw security signals into trusted, analytics-ready data.Presentation-layer engineers own most visualization delivery, so your primary contribution is the reliability, structure, and performance of the data layer, including keeping it running day to day. This is a technical, individual contributor role. You will solve moderately complex problems … verbal communication about data and technical tradeoffs. Some travel may be required. Desired qualifications Advanced Snowflake features, such as tasks, streams, dynamic tables, and performance tuning. Experience with dbt or a similar transformation and modeling framework. Experience automating data workflows or building AI-ready or AI-enabled data products. ...

Data Engineering Lead (SVP)

Hiring Organisation
Citigroup
Location
Belfast, UK
Employment Type
Full-time
this role is to lead applications systems analysis and programming activities. Proven leadership in building and scaling enterprise data services, driving cloud transformation, optimising performance, capacity, and delivering AI enabled operational and analytics platform. Responsibilities: Lead the design, engineering and delivery of next generation cloud data services supporting data … reporting control issues with transparency. Skills & ExperienceEssentialProven in-depth commercial experience in the following key areas: Databricks – Lakehouse architecture, Spark, Delta Lake, workflows and performance tuning. Apache Spark & Scala – High-performance distributed data processing and optimisation. Cloud Data Engineering (AWS) – Cloud-native data platforms and distributed computing. Data ...

CNI Team Lead

Location
Wokingham, England, United Kingdom
systems Hands-on experience applying the Information Technology Infrastructure Library (ITIL) framework effectively Practical application of Capacity Management, Backup (Disaster Recovery), Business Continuity, and Performance Management Strong understanding of network protocols and topologies Extensive customer-facing experience in an IT service role Methodical and positive approach to problem-solving … network protocols. Familiarity with DNS, DHCP and other network services. Knowledge of managing a data centre in terms of systems monitoring, capacity planning and performance tuning. Ability to operate in a fast-paced, evolving environment appropriately prioritize tasks, and keep abreast of the latest technology. Maintain a deep understanding ...

Senior Lead Software Engineer - LLM Ops Platform Reliability

Location
Auchentibber, Scotland, United Kingdom
site reliability practices to cutting-edge AI platforms. You’ll work hands-on with cloud and Kubernetes-based deployments, deep observability, and cost-aware performance tuning. If you enjoy solving hard production problems and making platforms measurably better, you’ll find meaningful impact and growth here. As a Senior … will build and scale AI infrastructure that modernizes traditional infrastructure management and site reliability engineering through applied AI. You will own the reliability, performance, and cost-efficiency of the large language model inference platform end to end. You will operate large language model serving stacks in production at scale ...

Solutions Architect - ServiceNow

Location
Glasgow, Scotland, United Kingdom
Azure, or GCP). Automate continuous integration, deployment pipelines, and cloud resource provisioning workflows. Ensure infrastructure meets corporate security baseline standards, compliance policies, and performance benchmarks. ServiceNow Installation & Configuration Lead the technical design, deployment, and configuration of ServiceNow instances (ITSM, ITOM, Cloud Provisioning & Governance). Configure MID Servers, Discovery … cloud environments. Develop custom workflows, Scripted REST APIs, IntegrationHub spokes, and business rules within ServiceNow. Oversee instance cloning, upgrade management, release management, and platform performance tuning. Experience: 5+ years of experience as a Solutions Architect or Lead Systems Engineer. ServiceNow Expertise: Certified Implementation Specialist (CIS) or Certified System Administrator ...

Lead Site Reliability Engineer

Location
Greater London, England, United Kingdom
multi‐year convergence and modernization journey. You will play a pivotal role in shaping our next‐generation SRE patterns, reliability frameworks, observability strategy, and performance engineering capabilities across globally distributed systems. This role is ideal for an SRE specialist who thrives in fast‐paced front‐office environments, enjoys direct … software engineering team, participating in daily standups and design discussions. Contribute directly to the codebase (Java, Kotlin, Python) to implement reliability improvements, performance optimisations, bug fixes, and automation. Lead the design and rollout of modern SRE patterns across trading systems, including automated remediation, self‐healing workflows, and resilience engineering. ...

Application Support Engineer

Hiring Organisation
SRK Systems Inc
Location
Naperville, Illinois, United States
Employment Type
Any
Salary
USD Annual
microservices using Java 8/11/17/21, Spring Boot, Spring MVC, Spring Security, and Spring Data, with a focus on performance, scalability, and maintainability. Build responsive and reusable frontend components using React.js, JavaScript/TypeScript, React Hooks, Redux, HTML5, and CSS3, ensuring a seamless and user … security best practices. Design and optimize database interactions using MySQL, relational databases, JPA/Hibernate, and Spring Data, including complex queries, data modeling, and performance tuning. Implement application features across the full development lifecycle, including requirements analysis, technical design, development, unit testing, integration testing, deployment, and production support. Integrate ...

C# Developer

Location
Greater Manchester, England, United Kingdom
high-quality software. You value collaboration, curiosity, and learning as much as coding. You understand the importance of clean code, maintainable architecture, and system performance, and you want to work in a culture where your contributions matter and your growth is supported. What you’ll work on: Developing full … C#/.NET, including async/await, memory management, and resource handling. Deep knowledge of SQL Server, including query optimization, indexing, execution plans, and performance tuning. Solid understanding of HTML5, CSS3, Flexbox, and CSS Grid. 5+ years of varied software engineering experience, ideally including scalable systems. Experience with distributed ...

C# Developer

Location
Manchester, England, United Kingdom
high-quality software. You value collaboration, curiosity, and learning as much as coding. You understand the importance of clean code, maintainable architecture, and system performance, and you want to work in a culture where your contributions matter and your growth is supported. What you’ll work on: Developing full … C#/.NET, including async/await, memory management, and resource handling. Deep knowledge of SQL Server, including query optimization, indexing, execution plans, and performance tuning. Solid understanding of HTML5, CSS3, Flexbox, and CSS Grid. 5+ years of varied software engineering experience, ideally including scalable systems. Experience with distributed ...

Network Authority

Hiring Organisation
Vodafone
Location
London, UK
Employment Type
Full-time
Broadband DNS and Fixed Broadband RADIUS infrastructure. The role involves working with industry standard applications, platforms and virtualised environments, ensuring high availability, scalability, and performance of DNS and RADIUS platforms - supporting national and international customers. You'll take a lead role during complex or major incidents, collaborate with technical … experts across the UK and international teams, interpret and asses new operational demands, tooling and projects, along with performance monitoring and managing our DNS and RADIUS platforms for our Consumer, Business, Enterprise and Wholesale clients. What will you be doing? Operationally maintain DNS and RADIUS solutions based on FreeRADIUS ...

Network Authority Home Based, United Kingdom Fixed Services Operations - UK Posted 2 hours ago

Location
United Kingdom
Broadband DNS and Fixed Broadband RADIUS infrastructure. The role involves working with industry standard applications, platforms and virtualised environments, ensuring high availability, scalability, and performance of DNS and RADIUS platforms - supporting national and international customers. You’ll take a lead role during complex or major incidents, collaborate with technical … experts across the UK and international teams, interpret and asses new operational demands, tooling and projects, along with performance monitoring and managing our DNS and RADIUS platforms for our Consumer, Business, Enterprise and Wholesale clients.What will you be doing? • Operationally maintain DNS and RADIUS solutions based on FreeRADIUS ...

Senior Software Engineer

Location
Manchester, England, United Kingdom
existing codebases to identify external dependencies, and design and implement the changes required to port each title.* Verify and tune ported titles so that performance, behaviour, and player experience match the originals.* Establish and document a repeatable porting process, producing clear technical documentation that other engineers can follow … matches the original.**What You'll Bring*** Excellent programming knowledge, underpinned by sound software engineering principles.* Advanced C and C++ skills, including memory management, performance optimisation, and low-level debugging.* Hands-on graphics programming expertise with DirectX and/or OpenGL, including rendering pipelines.* A commercial track record ...

ThingWorx Developer

Location
United Kingdom
integrations using REST APIs, SQL databases, and external enterprise systems. Provide L1/L2/L3 support, incident management, root cause analysis (RCA), and performance optimization. Manage application deployments, releases, upgrades, and environment support across Dev, QA, and Production. Configure and troubleshoot user access, security, monitoring, and application health. … Mashup Development, Services, JavaScript, REST APIs, JSON, and SQL. Experience in application support, maintenance, and production troubleshooting. Knowledge of ThingWorx security, deployments, and performance tuning. Knowledge of ThingWorx Navigate, Kepware, and Windchill integration. Location & Security Requirements: Candidate must be a UK National due to the nature of the customer ...

Development Lead

Location
Penarth, Wales, United Kingdom
Manage developer authorisations, transport management, and DevOps/CI-CD practices in collaboration with Basis and architecture teams. Ensure appropriate unit testing, security scanning, performance optimisation, and code quality. Support SIT/UAT defect resolution and technical cutover activities, including migration and conversion programs. Lead and mentor development teams … side‐by‐side extensibility, and API‐based integration. Experience with code reviews, security scanning, transport management, DevOps/CI-CD, and performance tuning. Proven experience leading SAP development teams and managing development quality. Experience in government, defence, or highly regulated environments is highly preferred. Strong communication, stakeholder management ...

Development Lead

Location
High Street, England, United Kingdom
Manage developer authorisations, transport management, and DevOps/CI-CD practices in collaboration with Basis and architecture teams. Ensure appropriate unit testing, security scanning, performance optimisation, and code quality. Support SIT/UAT defect resolution and technical cutover activities, including migration and conversion programs. Lead and mentor development teams … side‐by‐side extensibility, and API‐based integration. Experience with code reviews, security scanning, transport management, DevOps/CI-CD, and performance tuning. Proven experience leading SAP development teams and managing development quality. Experience in government, defence, or highly regulated environments is highly preferred. Strong communication, stakeholder management ...