101 to 125 of 217 Performance Tuning Jobs

Database Reliability Engineer

Hiring Organisation
Starling Bank
Location
London, UK
Employment Type
Full-time
Fleet: Ensure the rock-solid reliability of our existing RDS footprint. You will architect automated strategies for seamless, multi-version upgrades and proactive performance tuning to minimize downtime across hundreds of instancesArchitect Cross-Cloud Portability: Use CNPG and cloud-native patterns to ensure our database layer remains provider … GCPEvolve Observability & Monitoring: Build deep, proactive monitoring and alerting for our global database fleet. You will ensure we have the visibility to detect performance regressions and health issues before they impact our customersSupport Replication & Mobility: Support data streaming and "Zero-Downtime" migration strategies, ensuring data consistency and availabilityFortify Business ...

Senior AI Platform Engineer

Hiring Organisation
IQVIA
Location
London, UK
Employment Type
Full-time
planning and execution of LLM initiatives and translating research requirements into scalable engineering solutions.Partner with centralised infrastructure teams to design and deliver high-performance compute environments across AWS and on-premises platforms, including GPU infrastructure, Slurm clusters, and migration from ad hoc research workflows.Optimise LLM training and inference workloads … supporting research and product teams in maximising performance, scalability, and reliability across the infrastructure stack.Establish and maintain model and data lifecycle capabilities, including dataset versioning, lineage tracking, reproducibility standards, and integration with model registries.Lead the evolution of knowledge graph infrastructure, driving technology selection, migration strategies, performance optimisation ...

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 ...

Java + CloudNative

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£65000 - £70000/annum
scalable event-driven architectures utilizing Apache Kafka and Apache Flink for real-time risk data streaming. API & Integration Engineering: Design, implement, and maintain high-performance RESTful APIs and gRPC services for seamless cross-system and frontend-backend communication. Cloud & DevOps Integration: Deploy, scale, and manage cloud-native applications … Domain Alignment: Partner with quantitative analysts, risk officers, and product owners to translate complex risk management requirements into technical implementations. System Optimization & Reliability: Conduct performance tuning, memory profiling, and multithreading optimizations; troubleshoot and resolve production incidents to uphold high availability. Quality & Compliance: Maintain high code quality through rigorous ...

CNI Infrastructure Engineer

Hiring Organisation
Appcast
Location
Warwick, Warwickshire, UK
resilient networking environments across LAN/WAN, SD-WAN, VLANs, BGP/OSPF, VPNs, load balancers, and firewalls Support platform reliability through monitoring, troubleshooting, performance optimisation, and capacity planning Contribute to incident response, root cause analysis, and 24/7 on-call support where required Drive automation of operational … willingness to automate anything that can (and should!) be automated.Strong, hands‐on experience with Linux systems in enterprise environments, including installation, configuration, administration, troubleshooting, performance tuning, patching, and security hardening.Strong knowledge of Active Directory Domain Services, with the ability to design, manage, and troubleshoot directory‐based environments.Hands ...

Software Architect - .NET / Automation Systems

Hiring Organisation
Computer Futures
Location
Nottingham, Nottinghamshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 - 90,000 Annual
artefacts and architecture documentation (including ADRs) Make key technical decisions across persistence, messaging, caching, and integration patterns Ensure solutions meet non-functional requirements including performance, scalability, availability, and security Troubleshoot and resolve complex system issues, including concurrency, bottlenecks, and integration failures Systems Integration Own and define integration patterns between … technical authority in client workshops, design reviews, FAT/SAT, and commissioning phases Provide support during go-live activities, including system tuning, troubleshooting, and stabilisation Collaborate with delivery and project teams to ensure integration success Maintain a calm, solution-focused approach in high-pressure live environments Technology Strategy & Governance ...

Data Engineer (Snowflake & Kafka)

Hiring Organisation
Lorien
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£0 per annum
with Kafka concepts (producers, consumers, topics) and ability to integrate with streaming data pipelines. Solid understanding of data modelling , ETL/ELT processes, and performance optimization. Programming & Engineering Skills Proficiency in Python for data engineering tasks and automation. Ability to design and implement scalable, maintainable data pipelines . Experience … cloud-native environments and following security/compliance standards. Nice-to-Have Exposure to streaming data architectures and event-driven systems. Knowledge of Snowflake performance tuning and cost optimization. If you find this opportunity intriguing and aligning with your skill set, we welcome the submission of your ...

Senior Software Engineer

Hiring Organisation
HireQ Talent
Location
United Kingdom
closely with Product, Engineering, QA, and DevOps teams Championing engineering best practices through code reviews, testing, and mentoring Improving system reliability, scalability, security, and performance Building and maintaining cloud-native applications and microservices Influencing architectural decisions and technical strategy Producing high-quality technical documentation and API specifications Identifying opportunities … authorisation, encryption, and secrets management Cloud platform experience, particularly Microsoft Azure CI/CD pipeline development and DevOps best practices Monitoring, observability, logging, and performance tuning Bonus Points For Experience within Healthcare, HealthTech, MedTech, Life Sciences, or regulated environments Background in high-growth SaaS or product-led technology ...

Local Government ERP Enterprise Architect

Hiring Organisation
Morson Edge
Location
United Kingdom
Employment Type
Contract, Part Time
Salary
£600 - 750 per day
compliance with public sector requirements: information security, data privacy, accessibility, spend controls, and procurement regulations. Provide architectural assurance across delivery: solution design reviews, NFRs, performance, resilience, disaster recovery. Partner with Finance, HR, Procurement, IT Ops, and Service Owners; translate complex architecture into clear, actionable plans. Mentor solution architects … tooling and methods: TOGAF or equivalent, BPMN, ArchiMate/UML, roadmapping, capability modelling, and business case development. Non-functional mastery: security, scalability, availability, observability, performance tuning, and cost optimisation in hybrid/cloud environments. Excellent stakeholder skills—able to influence senior leaders, suppliers, and delivery teams; clear written ...

Java API Developer, Assistant Vice President

Hiring Organisation
Appcast
Location
London, UK
tests (unit/integration) and ensure strong quality gates for services supporting regulated digital asset processing.Support production readiness: observability (logs/metrics), incident triage, performance tuning, and resilience improvements for APIs operating in a regulated, high‐availability environment.Collaborate across teams to drive clear API contracts and dependencies … enterprise Java or platform backends.About State StreetAcross the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.We ...

Senior Azure Platform Engineer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£500 - £600 per day
deployment, management and optimisation of secure, highly available and scalable cloud infrastructure. Strong expertise in Azure Monitor , including monitoring strategy, log analytics, alerting, performance tuning and proactive incident management across cloud platforms. Extensive experience with Azure DevOps , delivering CI/CD pipelines, release automation, source control management ...

Oracle Data Warehouse Developer (SC Cleared)

Hiring Organisation
Syntax Consultancy Ltd
Location
Andover, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day 450-500/day (Outside IR35)
solutions. • Designing, developing Oracle Data Integrator (ODI) mappings for ETL processes. • Resolving data, ETL + reporting issues to ensure system stability. • RPD repository design, performance tuning of RPD objects, ODI mappings, queries + reports. • Providing Production Support for existing live ODI and Data Warehouse objects. • Maintained and documented ...

Oracle Data Warehouse Developer (SC Cleared)

Hiring Organisation
Syntax Consultancy Ltd
Location
Andover, Hampshire, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day 450-500/day (Outside IR35)
needs. Providing Production Support for existing live Oracle OAS, ODI + data warehouse objects. Resolving data, ETL + reporting issues to ensure system stability. Performance tuning of RPD objects, ODI mappings, queries + reports. Maintained and documented standard processes, procedures, and technical documentation. Autonomous Data Warehouse (ADW) design ...

Senior Java Architect - Banking, Payments & AI

Hiring Organisation
Intuition IT Solutions Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Spring Cloud, and Microservices. Deep knowledge of Kafka, NATS, event streaming, API architecture, and integration patterns. Hands-on expertise with Oracle, PostgreSQL, data modelling, performance tuning, and high-availability systems. Excellent stakeholder management, leadership, and communication skills. ...

Senior Platform Engineer (DevOps)

Hiring Organisation
Response Informatics
Location
Glasgow, Lanarkshire, Scotland, United Kingdom
Employment Type
Contract
high-availability patterns Serverless technologies (e.g., AWS Lambda) and event-driven architectures Networking and scaling - DNS, routing, auto-scaling, horizontal/vertical scaling, and performance tuning under load AWS (ECS, EKS, MSK) CDN, WAF, and network boundary/perimeter design ...

Data Engineer

Hiring Organisation
Reed in Partnership
Location
Liverpool, Merseyside, England, United Kingdom
Employment Type
Full-Time
Salary
£35,000 per annum
insights deliveries. PERSON SPECIFICATION Essential Technical Skills Understanding of ETL/ELT processes Understanding and experience with DDL/DML Query optimisation and performance tuning Proficiency in SQL and DAX (Python would be desirable) Star schema data modelling Power BI Experience with or knowledge of: Azure Data Warehouse ...

Java Developer

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Permanent
Salary
£45,000
work management and tracking. Desirable Skills Understanding of CI/CD best practices. Experience working in highly regulated or secure environments. Knowledge of application performance tuning and monitoring. Exposure to DevOps methodologies and cloud-based environments. Strong troubleshooting and problem-solving skills. If you receive suspicious outreach claiming ...

Oracle Database Engineer

Hiring Organisation
Future plc
Location
London, UK
Employment Type
Full-time
Strong SQL writing skills and data analysis using SQLPlus/Toad/SQL developerExperience writing complex and optimal SQL queriesExperience in debugging and performance tuning PL/SQL code Experience in Oracle Forms 12c (Oracle Fusion Middleware) Experience with ETL processing, data extraction, transform and load Working knowledge ...

Senior PHP Developer

Hiring Organisation
INTEC SELECT LIMITED
Location
Basingstoke, Hampshire, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £70,000 per annum
7.4 (CakePHP) and PHP 8+ (Laravel/Symfony). Experience building RESTful APIs and backend services. Strong MySQL knowledge, including query optimisation and performance tuning. Understanding of software architecture, design patterns, and SOLID principles. Experience with JavaScript (ES6+), HTML5, CSS, Git, Docker, and Linux/WSL environments. Strong experience ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence … critical. You will design and build ultra-low latency pricing and risk systems that directly power our global trading operations. If you thrive in performance critical environments and want your work to have real market impact, we would love to hear from you. Please note that this ...

Senior Linux, AIX & Oracle Database Administrator

Hiring Organisation
Deerfoot Recruitment Solutions
Location
London, UK
Employment Type
Full-time
highly skilled IT infrastructure team, you'll take ownership of complex Oracle database environments, Linux and AIX administration, and the ongoing stability and performance of critical banking applications including Oracle Flexcube and Oracle ERP.If you enjoy solving complex technical challenges, working across high-availability environments, and contributing … within mission-critical banking environmentsManaging and maintaining Red Hat Linux and IBM AIX server infrastructure hosting core banking applicationsPerforming database and OS patching, upgrades, performance tuning and capacity optimisationSupporting Oracle Flexcube and Oracle ERP platforms to ensure high availability and operational resilienceImplementing and managing Oracle backup and recovery ...

Systems Engineer - Sell Side Solutions

Hiring Organisation
Bloomberg
Location
London, UK
Employment Type
Full-time
Bloomberg TEMS (Trade Execution Management System - TEMS) is looking for a sharp System Engineer with some Networking ExperienceTEMS is a leading provider of high-performance trading solutions. We've delivered some of the world's most advanced systems to a who's who customer list that includes the largest … Help manage and administer Broadway's global trading hardware, network, systems, and data center infrastructure. Identify, troubleshoot, and resolve hardware, operating system, network, and performance issues within the trading environment.• Serve as a systems administrator for production Windows and Linux environments, including server builds, patching, configuration management, access control ...

Senior Database Architect

Hiring Organisation
Siamo Group Ltd
Location
Cirencester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£35,000
will have the following responsibilities: Design, maintain, and optimise the systems and database infrastructure Build and manage ETL processes and system integrations Monitor database performance, security, and data integrity Ensure compliance with data governance and GDPR requirements Collaborate with IT teams and third-party providers on database solutions Provide … exposure: Strong experience with SQL Server, MySQL, or similar relational databases Experience building and maintaining ETL processes and data integrations Knowledge of database performance tuning, security, and backup procedures Understanding of data governance, GDPR, and data management best practices Experience working with APIs and integrating multiple business systems ...

Development Technology Lead, Assistant Vice President

Hiring Organisation
State Street Bank
Location
Midlothian, Scotland, UK
Employment Type
Full-time
Experience with PL/SQL programming, Oracle databaseExperience in developing data solutions as Oracle App DB developer.hands-on experience in writing complex queries, performance tuning, and designing for performance.Understanding of Financial domain, specifically OTC derivativesExperience in working with Vendor platforms and critical transactional systemsExperience in agile delivery & adhering … Computer Science or equivalent requiredAbout State StreetAcross the globe, institutional investors rely on us to help them manage risk, respond to challenges, and drive performance and profitability. We keep our clients at the heart of everything we do, and smart, engaged employees are essential to our continued success.We ...

Full Stack Developer

Hiring Organisation
Robert Half
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£400 - £500 per day
develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive front-end applications using React and TypeScript. Build and maintain back-end services using Node.js. Deploy and support … Skills & Experience: Significant commercial experience as a Full-Stack Software Engineer. Strong SQL Server and Azure SQL expertise, including: Database design Query optimisation Performance tuning Data integrity Strong commercial experience with: React Node.js JavaScript TypeScript Experience deploying and supporting applications within Microsoft Azure, including Azure Web Apps. Experience ...