276 to 300 of 682 Performance Tuning Jobs

Senior Java Engineer

Location
Urmston, England, United Kingdom
designing and implementing microservices-based architectures.Strong understanding of application integration patterns, APIs, and service-oriented design.Expertise in database design, data modelling, query optimisation, and performance tuning.Experience working across the full software development lifecycle in Agile deliveryenvironments.Strong analytical and problem-solving skills with the ability to translate business requirements into ...

Lead Developer

Location
Winsford, England, United Kingdom
small team and raise the engineering bar. Design scalable applications using Laravel . Architect microservices and modular systems where appropriate. Build secure, high‐performance REST APIs. Implement queue‐based and event‐driven systems. Design systems with scalability, reliability, and fault tolerance in mind. Own CI/CD pipelines … deployment strategy. Improve performance, security, and cost efficiency. Lead sprint planning and technical roadmap discussions. Conduct code reviews and mentor developers. Own and resolve production issues when it matters most. What We’re Looking For Strong Laravel experience in production environments . Proven background in system architecture . Experience ...

Low Latency Developer

Location
Greater London, England, United Kingdom
Join Barclays as a Low Latency Developer and become part of a technology team responsible for building and enhancing high performance trading systems that support critical business activity across our markets platform. This role is focused on the ongoing development and optimisation of a key platform supporting algorithmic trading … Latency Developer you must have the following essential skills : Low latency and advanced Java knowledge (lock free patterns, zero allocation development, performance tuning). OS and network tuning knowledge and hard on experience (mechanical sympathy). Working with low latency messaging (protocols, middleware). Some other highly ...

Oracle PL/SQL Developer

Location
City Of London, England, United Kingdom
development using PL/SQL Strong SQL skills and experience using tools such as SQL Developer, Toad or SQL*Plus Experience writing complex and performance-focused SQL queries Experience debugging and performance-tuning PL/SQL Experience with ETL processes and data extraction/transformation/loading ...

Oracle PL/SQL Developer

Hiring Organisation
Proactive Appointments
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
development using PL/SQL Strong SQL skills and experience using tools such as SQL Developer, Toad or SQL*Plus Experience writing complex and performance-focused SQL queries Experience debugging and performance-tuning PL/SQL Experience with ETL processes and data extraction/transformation/loading ...

SC Cleared Linux Engineer

Hiring Organisation
Experis
Location
Telford, Shropshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
enhance UNIX/Linux shell scripts to automate operational tasks. Work closely with project teams to deliver infrastructure improvements and technical solutions. Monitor system performance, availability, and security across the Linux estate. Produce and maintain technical documentation, procedures, and support guides. Participate in out-of-hours maintenance and project … develop and maintain high-quality UNIX shell scripts. Experience troubleshooting and supporting complex multi-platform UNIX/Linux infrastructures. Strong understanding of Linux server performance tuning, patching, and system maintenance. Experience working within managed service and operational support environments. Strong analytical and problem-solving skills. Excellent communication ...

DATACOM SME (Data Communication Subject Matter Expert; all genders)

Location
Greater London, England, United Kingdom
networking and data communication technologies. The ideal candidate will be responsible for designing, implementing, optimizing, and supporting complex network infrastructures while ensuring high availability, performance, scalability, and security. The role requires close collaboration with infrastructure, security, cloud, and operations teams to deliver reliable and efficient networking services. In this … matter expertise for LAN, WAN, WLAN, SD-WAN, VPN, and Data Center networking technologies. Lead network transformation and modernization initiatives. Perform network capacity planning, performance tuning, and optimization. Troubleshoot complex network issues and drive root cause analysis. Collaborate with Infrastructure, Security, Cloud, and Application teams to ensure seamless ...

Senior Data Engineer – Databricks & DLT

Location
City Of London, England, United Kingdom
analytics and reporting. Collaborate with cross‐functional teams to understand data requirements and deliver robust solutions. Monitor, troubleshoot, and enhance data workflows for performance and reliability. Maintain technical documentation and contribute to data engineering best practices. Required Skills & Qualifications: Strong experience withDatabricks- DLT, Delta Lake concepts, UC governance. Solid …/ELT processes, and data architecture. Experience in MS Copilot, AI Foundry , Databricks (MosiacAI, MLflow, Agentbricks, Genie) Strong analytical background with problem‐solving skills. Performance tuning concepts like watermarking, late data handling, parallelism & checkpointing. Hands‐on expertise inADF, and Qlik Replicatefor data ingestion and replication. Experience working inAzure ...

Senior Infrastructure Engineer (GCP) - Engine by Starling

Location
Cardiff, Wales, United Kingdom
case studies with Women in Tech. As a Senior Infrastructure Engineer, you will: Design, document, build and maintain scalable infrastructure on GCP Ensure the performance and reliability of cloud environments whilst measuring cost-effectiveness Embrace automation and be reluctant for manual implementation Build systems with security by design … Manager (EKM) and Secret Manager — including support for cryptographic key ceremonies Rapidly diagnose and fix client-reported infrastructure issues while maintaining peak security and performance Write clear technical documentation and host training sessions for the team Demonstrate knowledge of new technologies and changes in the industry Lead complex infrastructure ...

Staff Infrastructure Engineer (GCP) - Engine by Starling

Location
Manchester, England, United Kingdom
case studies with Women in Tech. As a Staff Infrastructure Engineer, you will: Design, document, build and maintain scalable infrastructure on GCP Ensure the performance and reliability of cloud environments whilst measuring cost-effectiveness Embrace automation and be reluctant for manual implementation Build systems with security by design … Manager (EKM) and Secret Manager — including support for cryptographic key ceremonies Rapidly diagnose and fix client-reported infrastructure issues while maintaining peak security and performance Write clear technical documentation and host training sessions for the team Demonstrate knowledge of new technologies and changes in the industry Lead complex infrastructure ...

Staff Infrastructure Engineer (GCP) - Engine by Starling

Location
Greater London, England, United Kingdom
case studies with Women in Tech. As a Staff Infrastructure Engineer, you will: Design, document, build and maintain scalable infrastructure on GCP Ensure the performance and reliability of cloud environments whilst measuring cost-effectiveness Embrace automation and be reluctant for manual implementation Build systems with security by design … Manager (EKM) and Secret Manager — including support for cryptographic key ceremonies Rapidly diagnose and fix client-reported infrastructure issues while maintaining peak security and performance Write clear technical documentation and host training sessions for the team Demonstrate knowledge of new technologies and changes in the industry Lead complex infrastructure ...

AI Compiler Optimization Engineer

Location
City of Edinburgh, Scotland, United Kingdom
this exciting journey and drive your career forward. Job Summary We are seeking a skilled AI Compiler Optimization Engineer to optimize AI model inference performance through advanced compiler technologies. You will focus on performance tuning for CPU or hybrid CPU/XPU heterogeneous architectures, profiling AI frameworks … discover new optimization opportunities, and delivering cutting-edge insights from industry research. Key Responsibilities: Compiler-Based Performance Optimization: Implement compiler techniques (e.g., MLIR level optimizations, LLVM backend optimizations) to enhance inference performance on CPU and CPU/XPU hybrid systems Optimize JIT level compute graphs with operator fusion ...

IT Database Engineer

Location
Greater London, England, United Kingdom
environment where you’ll be responsible for supporting, administering and securing critical production databases. You’ll play a key role in ensuring high availability, performance and resilience across the database estate while contributing to ongoing infrastructure and database projects. What we are looking for: 5 years + experience … production environment for below DB products is a plus but not essential: ClickHouse, snowflake, Basic understanding of DB monitoring, analysis, disaster recovery, and performance tuning Familiarity with UNIX/Linux Experience in one or more database programming languages (SQL, T-SQL, PL/SQL etc.) for design, maintain ...

Full Stack Lead Engineer - App, Data & AI Engineering

Location
Glasgow, Scotland, United Kingdom
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 … their IT systems Preferred qualifications, capabilities, and skills Experience with high-volume batch and real-time data processing using PySpark or similar frameworks, including performance tuning and troubleshooting of large-scale data pipelines In-depth knowledge of relational and distributed databases (e.g., Oracle, Databricks) with hands-on experience ...

Lead Software Engineer

Hiring Organisation
Hackajob Ltd
Location
Glasgow, UK
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 … their IT systems Preferred qualifications, capabilities, and skills Experience with high-volume batch and real-time data processing using PySpark or similar frameworks, including performance tuning and troubleshooting of large-scale data pipelines In-depth knowledge of relational and distributed databases (e.g., Oracle, Databricks) with hands-on experience ...

Lead Software Engineer- Python / Java- (Cloud Data Platform — AWS/Databricks/Terraform)

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
Implements a repeatable AI-assisted review workflow (PR checklist, quality gates, and approval criteria) that improves readability, reduces defects, and enforces standards for maintainability, performance, and security. Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve … 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. Defines a practical operating model for AI-assisted development (approved use cases, do/don't guidance, and escalation paths) so teams ...

Lead Software Engineer- Python / Java- (Cloud Data Platform — AWS/Databricks/Terraform)

Location
Greater London, England, United Kingdom
Implements a repeatable AI-assisted review workflow (PR checklist, quality gates, and approval criteria) that improves readability, reduces defects, and enforces standards for maintainability, performance, and security. Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve … 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. Defines a practical operating model for AI-assisted development (approved use cases, do/don’t guidance, and escalation paths) so teams ...

SQA DBA specialist

Hiring Organisation
Sanderson Government and Defence
Location
Reading, Berkshire, South East, United Kingdom
Employment Type
Contract
looking for an experienced SQL DBA to join a growing team supporting critical SQL Server environments. You'll be responsible for ensuring database availability, performance, security, and resilience across enterprise systems. Key Responsibilities: Administer and support Microsoft SQL Server environments. Manage backup, recovery, and disaster recovery processes. Optimise database … performance and resolve issues proactively. Maintain high availability solutions and ensure system resilience. Implement security best practices and database governance. Automate database administration tasks using T-SQL and PowerShell . Monitor database health, capacity, and performance. Provide operational support and incident resolution. Key Skills Required: Strong SQL Server ...

Senior VMWare Engineer

Location
Greater London, England, United Kingdom
solid understanding of networking, storage, and automation within enterprise-scale environments. Key Responsibilities Design, implement, and manage VMware-based virtual infrastructure, ensuring high availability, performance, and scalability. Administer VMware vSphere, ESXi hosts, vCenter, and associated tools to maintain a stable and secure environment. Manage and optimize virtual networking, storage … Azure). Collaborate with cross-functional teams to ensure robust infrastructure alignment with business needs. Maintain documentation, adhere to best practices, and participate in performance tuning and capacity planning. Required Skills & Experience Minimum 5 years of continuous UK residency . 5+ years of proven experience in VMware infrastructure ...

Trade Floor Operations - FICC

Location
City Of London, England, United Kingdom
forestall future enhancements. Investigate, troubleshoot, and resolve Real Time production issues, working closely with traders, developers, and infrastructure teams. Ensure continuous system stability and performance across all FICC trading platforms, supporting both traders and institutional clients. Serve as the local subject matter expert for EMEA FICC trading infrastructure, owning … reduce manual intervention. Provide technical expertise on connectivity, data flows, and integration points between trading, pricing, and risk systems. Contribute to capacity planning, performance tuning, and resilience testing. Support global follow-the-Sun coverage and participate in on-call rotation as required. Required Skills and Experience: Tech ...

Fabric BI Developer MS Fabric Power BI Crewe 50k

Hiring Organisation
Langley James Limited
Location
Crewe, Cheshire, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
insights clearly. Data Management & Optimisation: Utilise strong SQL skills for data manipulation, querying, and validation while implementing robust ETL/ELT processes and troubleshooting performance bottlenecks across datasets. Champion Data Governance: Ensure high standards of data quality, data integrity, security, and BI platform best practices across all deliverables. Continuous … operation, management, or usage of Microsoft Fabric to deliver data solutions. Advanced Power BI & SQL Skills: Expertise in DAX, Power Query, semantic modelling, report performance tuning, and writing complex SQL queries for data validation. Strong Stakeholder & Communication Skills: Confident in leading requirement workshops, pushing back constructively, and explaining ...

Full Stack Engineer

Hiring Organisation
Xcede
Location
London, United Kingdom
Employment Type
Contract
enterprise search solutions using Elasticsearch and Azure AI Search. Define Elasticsearch cluster architecture, index mappings, aggregation queries and lifecycle strategies. Improve search relevance, indexing performance, query latency and platform resilience. Build Azure AI Search solutions using indexers, custom skillsets, vector search and semantic ranking. Develop responsive, search-focused applications … experience At least 10 years of software engineering or solution architecture experience. Deep, hands-on Elasticsearch expertise covering cluster architecture, mappings, aggregations, Lucene internals, performance tuning and snapshot/restore. Extensive production experience with Azure AI Search, including indexers, custom skillsets, vector search and semantic rankers. Strong JavaScript ...

Full Stack Engineer

Location
United Kingdom
enterprise search solutions using Elasticsearch and Azure AI Search. Define Elasticsearch cluster architecture, index mappings, aggregation queries and lifecycle strategies. Improve search relevance, indexing performance, query latency and platform resilience. Build Azure AI Search solutions using indexers, custom skillsets, vector search and semantic ranking. Develop responsive, search-focused applications … experience At least 10 years of software engineering or solution architecture experience. Deep, hands-on Elasticsearch expertise covering cluster architecture, mappings, aggregations, Lucene internals, performance tuning and snapshot/restore. Extensive production experience with Azure AI Search, including indexers, custom skillsets, vector search and semantic rankers. Strong JavaScript ...

Full Stack Engineer

Hiring Organisation
Xcede
Location
London, UK
enterprise search solutions using Elasticsearch and Azure AI Search. Define Elasticsearch cluster architecture, index mappings, aggregation queries and lifecycle strategies. Improve search relevance, indexing performance, query latency and platform resilience. Build Azure AI Search solutions using indexers, custom skillsets, vector search and semantic ranking. Develop responsive, search-focused applications … experience At least 10 years of software engineering or solution architecture experience. Deep, hands-on Elasticsearch expertise covering cluster architecture, mappings, aggregations, Lucene internals, performance tuning and snapshot/restore. Extensive production experience with Azure AI Search, including indexers, custom skillsets, vector search and semantic rankers. Strong JavaScript ...

SAP Data & Analytics Lead

Location
Greater London, England, United Kingdom
actively engaged in technical solutioning and development.* Ensure alignment of data models and reports with business KPIs, regulatory requirements, and financial planning processes.* Perform performance tuning of large datasets, ensuring efficient queries and faster reporting outputs.* Work with cross-functional teams (Finance, IT, Data Governance, Architecture) to ensure … data sources. Should have hands on experience on modeling for FI(GL,AP,AR,AA, and CO) processes.* Strong grasp of data governance, lineage, performance optimization, and data security concepts.* Proven ability to design and implement end-to-end analytics solutions from requirements gathering to production rollout.* Excellent communication ...