Performance Tuning Jobs in Cardiff

1 to 25 of 37 Performance Tuning Jobs in Cardiff

SAP Performance Test Engineer

cardiff, United Kingdom
Cognizant
We are looking for a passionate and analytical SAP Performance Engineer to join our growing NFT SAP practice in the UK. This role is ideal for someone who thrives in cross-functional environments, is deeply knowledgeable in SAP performance tuning, particularly with S/4HANA and is … driven to optimize large-scale enterprise systems for scalability, resilience, and speed. You will play a key role in analysing performance issues, troubleshooting bottlenecks, and designing robust solutions across SAP landscapes, with exposure to cutting-edge technologies like SAP BTP, cloud platforms (AWS/GCP), Docker, and Kubernetes. Primary … Responsibilities: Collaborate with functional and technical teams to diagnose and resolve SAP system performance challenges. Design and execute performance benchmarking strategies for SAP S/4HANA and integrated systems. Provide technical recommendations on system tuning, database optimization, and workload distribution. Conduct end-to-end performance tests More ❯
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Senior SQL Developer

Cardiff
Hybrid / WFH Options
TXP
will: Work in structured Scrum teams under experienced leads Deliver individual software components Be involved in MS SQL Server development, including design, implementation, and performance optimisation Broaden your skills through collaboration and mentorship Key Responsibilities Develop and optimise MS SQL Server databases (design, implementation, performance tuning) Write … DevOps, TFS). ???? Exposure to Microsoft Azure Cloud services. ???? Understanding of healthcare data standards (HL7, FHIR). ???? Proficiency with Redgate SQL developer tools and performance tuning solutions. ???? Experience with High Availability (Mirroring, Replication, Clustering, Always On). ???? Power BI skills for data visualization and reporting. Working Arrangements: Reporting More ❯
Employment Type: Contract
Rate: £180 - £185
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Database Administrator

cardiff, United Kingdom
Hybrid / WFH Options
JCW
/Hybrid – £300 per day (Inside IR35) We’re currently seeking an experienced Database Administrator (DBA) to support a high-impact data migration and performance tuning project on a contract basis. 📍 Location: Primarily remote – one day per month in office 💰 Day Rate: £300/day (Inside IR35) 🕐 Start … Responsibilities: Deliver on a major data migration project (data centre to data centre) Perform BAU support and troubleshooting across a complex data estate Conduct performance tuning and architecture analysis Run SQL Server analysis to understand application usage Support and manage application-related data requirements Assist with basic testing More ❯
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Principal Backend Engineer (Equity only) 2%

cardiff, United Kingdom
Luupli
for a Principal Backend Engineer to lead the evolution of our backend systems. This role will drive the development of scalable, secure, and high-performance solutions that form the backbone of our platform. You’ll lead a talented engineering team, define the technical vision, and ensure our infrastructure supports … business goals. Lead and mentor a team of backend engineers, fostering a culture of technical excellence and collaboration. Make architectural decisions that ensure scalability, performance, and securi ty. Development and Deploym ent Oversee the development and maintenance of backend microservices. Ensure seamless deployment with CI/CD processes. Drive … integration of services wi th Postgre SQ L, Re dis, a nd message que ues to ensure efficient data fl ow. Optimization and Performance Monitor backend performance metrics, identifying and addressing bottlenecks proactively. Optimize APIs for low latency and high throughput to support real-time user interactions. Ensure More ❯
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Data Warehouse Developer

Cardiff, South Glamorgan, United Kingdom
Hybrid / WFH Options
Creditsafe
other sources, building efficient data structures to support analytical insights. By developing and optimizing ETL/ELT pipelines, we ensure data accuracy, consistency, and performance across the warehouse. Leveraging Azure Data Services such as Synapse, Data Factory, and SQL Server, we provide scalable solutions that enable stakeholders to make … CE & F&O) and other sources. Collaborate with business stakeholders to define key business metrics and reporting needs. Ensure data quality, consistency, and performance across the warehouse. Work with Azure Data Services (Synapse, Data Factory, Data Lake, SQL DB, etc.) to build scalable solutions. Implement data governance, security, and … other data integration tools). Experience handling incremental data loads, data transformations, and data cleansing. Databases & Querying: Proficiency in SQL Server, T-SQL, and performance tuning for data warehouses. Experience working with Azure Synapse Analytics, Azure SQL DB, or similar cloud-based platforms. Microsoft Dynamics 365 (Desirable): Familiarity More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior / Staff Software Engineer (AI / Compiler)

cardiff, United Kingdom
Flux Computing
London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI … optimise every layer of the stack—from model representation and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role … ve worked in HFT, large-scale scientific compute, or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning More ❯
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Data Warehouse Engineer

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
Creditsafe
other sources, building efficient data structures to support analytical insights. By developing and optimizing ETL/ELT pipelines, we ensure data accuracy, consistency, and performance across the warehouse. Leveraging Azure Data Services such as Synapse, Data Factory, and SQL Server, we provide scalable solutions that enable stakeholders to make … CE & F&O) and other sources. Collaborate with business stakeholders to define key business metrics and reporting needs. Ensure data quality, consistency, and performance across the warehouse. Work with Azure Data Services (Synapse, Data Factory, Data Lake, SQL DB, etc.) to build scalable solutions. Implement data governance, security, and … other data integration tools). Experience handling incremental data loads, data transformations, and data cleansing. Databases & Querying: Proficiency in SQL Server, T-SQL, and performance tuning for data warehouses. Experience working with Azure Synapse Analytics, Azure SQL DB, or similar cloud-based platforms. Microsoft Dynamics 365 (Desirable): Familiarity More ❯
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Lead Oracle Data Engineer

cardiff, United Kingdom
developrec
candidate will lead a feature team responsible for ensuring the seamless migration and integration of Oracle databases, while upholding best practices in data integrity, performance, and security. This is a pivotal role for an experienced professional passionate about data engineering and transformational delivery. Key Responsibilities Lead the planning and … execution of Oracle database modernisation, conversion, and migration activities, ensuring alignment with project timelines and deliverables. Oversee database architecture assessments and performance optimisation efforts. Collaborate with development and architecture teams to improve data flow and streamline database operations. Conduct thorough testing and validation of migrated data to ensure completeness … members. Essential Skills & Experience Extensive experience as an Oracle DBA with deep expertise in Oracle Exadata. Strong knowledge of Oracle Database architecture, tools, and performance tuning techniques. Proven track record with data migration methodologies and execution. Skilled in SQL and PL/SQL programming. Experience with database backup More ❯
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Java Full Stack Engineer

cardiff, United Kingdom
Apexon
LLM APIs , AI agents , and related tooling. Proficient in unit testing , integration testing , and Test-Driven Development (TDD) . Excellent problem-solving, debugging, and performance-tuning skills. Preferred Qualifications Strong communication skills and demonstrated ability to engage with business stakeholders and product teams. Experience in data modeling , data More ❯
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Lead MSBI

cardiff, United Kingdom
TESTQ Technologies Limited
and manage end-to-end BI development projects using Microsoft BI stack (SSIS, SSAS, SSRS) Design and implement complex SQL queries, stored procedures, and performance tuning Contribute to data warehouse architecture and dimensional modeling Work within OLAP and ETL frameworks to support scalable BI solutions Collaborate with cross More ❯
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Senior Backend Engineer (Go) - AI startup

cardiff, United Kingdom
Hybrid / WFH Options
Few&Far
scalable, resilient, and secure Work with cloud infrastructure, containerisation (Docker, Kubernetes), and CI/CD pipelines Take part in code reviews, architecture discussions, and performance tuning What We’re Looking For A Bachelor’s degree (or higher) in Computer Science or a closely related field 4+ years experience … building scalable, high-performance, real-time applications Strong programming skills in Go (Golang) Solid understanding of distributed systems , microservices architecture , and event-driven design Experience working with cloud platforms (e.g., AWS, GCP, Azure) Familiarity with monitoring, logging, and observability tools Bonus Points For Contributions to open-source projects Contributions … to an AI product ⚙️ Tech Stack: Golang, GCP, microservices, Kubernetes, Kafka, MongoDB, Prometheus If scalability, security, databases and performance is your thing, looking for high ownership and impact - this role is for you! Please apply with an up to date CV and we will be in touch with next More ❯
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Senior Site Reliability Engineer

cardiff, United Kingdom
Cipher7
routine tasks and eliminate manual effort using scripting and infrastructure-as-code. Collaborate with development teams to ensure best practices for deployment, monitoring, and performance tuning. Drive incident management processes, root cause analysis, and continuous improvement of system reliability. Maintain and improve observability using monitoring and logging tools. Optimize More ❯
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Senior Rust Engineer | Remote | FinTech

cardiff, United Kingdom
Hybrid / WFH Options
UMATR
solving complex technical challenges at scale, using modern technologies and best practices. 🚀 What You’ll Be Working On Building and optimising low-latency, high-performance systems in Rust Designing clean, scalable APIs and modular architectures Enhancing existing systems for better performance, resilience, and maintainability Collaborating with engineers and … multithreading Solid experience with PostgreSQL and working with large-scale datasets Strong knowledge of algorithms, data structures, and software design principles Proficient with debugging, performance tuning, and profiling tools Clear communication skills with a proactive, team-oriented mindset Experience across the full software development lifecycle 💡 Bonus Points For More ❯
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Network Engineer - Low Latency - AWS - Palo Alto - Financial Services

cardiff, United Kingdom
Rothstein Recruitment
and operations, to build-out the network infrastructure. The successful candidate will be responsible for designing, building, and maintaining the infrastructure that supports high-performance trading operations, with specialized focus on networking solutions in AWS and datacentre environments. Role Responsibilities Cloud & Network Infrastructure Design, deploy, and manage scalable, secure … cloud and datacentre infrastructure to support high-performance trading. Build advanced AWS networking (VPCs, Transit Gateway, Direct Connect, etc.) across accounts and regions. Optimise low-latency connectivity, support collocated Servers near exchanges, and implement cost-efficient network solutions. Infrastructure as Code & Automation Automate infrastructure using Terraform, Ansible, and GitLab … CI/CD. Apply GitOps for auditable, consistent deployments. Build resilient, self-healing network systems. Performance & Optimization Optimise infrastructure for low-latency, high-availability trading. Collaborate with developers on performance tuning and troubleshoot cross-region network issues. Professional Experience and Skills 5+ years in Network Cloud Engineer More ❯
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Senior Application Support Engineer – Elite Systematic Trading Firm - Prop Trading - Up to £400k TC - WFH

cardiff, United Kingdom
Hybrid / WFH Options
Mondrian Alpha
low-latency trading systems, automate infrastructure and application processes, and collaborate directly with trading, development, and infrastructure teams. You will operate in a high-performance environment that values precision, initiative, and continuous innovation. Key Responsibilities Deliver L1/L2 support for proprietary and third-party trading applications across global … role in onboarding new trading desks, products, and exchanges—delivering low-latency infrastructure and reliable integration. Ideal Candidate Profile 5+ years’ experience supporting high-performance trading systems in a Linux-heavy environment. Strong knowledge of the trade lifecycle in one or more asset classes (e.g., FX, Commodities, Equities). … and Geneos. Experience with relational databases (Postgres, Sybase, Oracle) and writing performant SQL queries. Knowledge of production-grade monitoring tools (e.g., Grafana, Splunk), alert tuning, and system health validation. Understanding of low-latency infrastructure, colocation environments, and performance tuning (CPU affinity, NUMA). Strong communicator with a More ❯
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DevOps Engineer

cardiff, United Kingdom
Hybrid / WFH Options
Cure Talent
s innovative products and services. This is a hands-on position where you'll collaborate with cross-functional teams to streamline deployments, optimise system performance, and ensure robust security and compliance across all environments. Key Responsibilities: Define, build, and maintain cloud infrastructure for production, development, and test environments Develop … and implement deployment strategies, policies, and standard operating procedures Select, deploy, configure, and operate alerting and monitoring systems Optimise system performance and ensure high availability through load balancing, failover strategies, and automated scaling Implement and maintain security best practices and ensure compliance with industry standards (e.g. GDPR, ISO … transition to Google Cloud Platform (GCP) as part of the role Hands-on expertise in automating deployments using CI/CD workflows Excellent troubleshooting, performance tuning, and problem-solving skills Bonus: Experience with containerisation tools such as Docker, and familiarity with backend API environments If you’re a More ❯
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Lead Data Engineer

cardiff, United Kingdom
Hybrid / WFH Options
SR2 | Socially Responsible Recruitment | Certified B Corporation™
using Azure Data Factory , Snowflake , and DBT Collaborate across Product, BI, Cloud, and IT to deliver data solutions that power real-world impact Optimise performance, enforce governance, and ensure seamless integration of APIs, external systems, and databases Own and evolve CI/CD pipelines using Azure DevOps , Git , and … practices Translate complex data into intuitive dashboards and tools with Power BI Be hands-on in everything from modelling and scripting to permissions and performance tuning What we’re looking for: 8+ years of experience in data engineering, with deep technical expertise across SQL, Snowflake, Azure, DBT , and More ❯
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Mortgages Data and ETL Engineer

cardiff, United Kingdom
Hybrid / WFH Options
Nationwide Building Society
stakeholders, business analysts, and architects to translate functional and non-functional requirements into technical data solutions. Design, build and maintain robust, scalable and high-performance ETL/ELT pipelines using modern data engineering tools and practices, ensuring quality, lineage and auditability. Support data discovery activities and analysis to inform … Proven hands-on experience in the data engineering, integration, and migration within complex data environments. Solid technical skills in ETL development, data transformation, and performance tuning, with a strong grasp of cloud-based ETL frameworks and modern data engineering principles. Working experience in ETL tools like Informatica, AbInitio … benefits through our salary sacrifice scheme Wellhub – Access to a range of free and paid options for health and wellness Access to an annual performance related bonus Access to training to help you develop and progress your career 25 days holiday, pro rata Banking – but fairer, more rewarding, and More ❯
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Senior Data Engineer

cardiff, United Kingdom
Advanced Resource Managers
security teams to ensure compliance with security policies and data governance standards. Manage and monitor large-scale data flows in real-time, ensuring system performance, reliability, and data integrity. Develop robust data models to support analytics and reporting within secure environments. Perform troubleshooting, debugging, and performance tuning … with data governance, data quality management, and compliance standards in secure environments. Experience in managing large-scale, real-time data pipelines and ensuring their performance and reliability. More ❯
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Software Engineer

cardiff, United Kingdom
Hybrid / WFH Options
Tiro Partners Limited
standards of quality related to code and systems Work closely with front-end developers in building and extending APIs Develop automated tests and conduct performance tuning Skills Experience with .NET core/.NET 5 Experience building & integrating APIs Excellent knowledge of SQL Familiar with Microsoft Azure or similar More ❯
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Dynamics 365BC Technical Architect

cardiff, United Kingdom
Hybrid / WFH Options
Conspicuous
consistency across projects Collaborate with functional consultants and clients to translate business requirements into technical specifications Provide hands-on development in AL and support performance tuning and solution optimisation Oversee data migration strategies and API-based integrations with third-party systems Support pre-sales activity with solution design More ❯
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Senior React Developer (TypeScript) – Build Complex Energy Platforms

cardiff, United Kingdom
GL Global
CI/CD and compliance requirements Experience: Advanced React & TypeScript experience with strong programming fundamentals Skilled in managing complex state/data flows and performance tuning Experience with Node.js, Material UI, HTML/CSS, Docker, Azure Background in regulated sectors (energy, finance, utilities) preferred Why Apply? Shape critical More ❯
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Senior OutSystems Developer

cardiff, United Kingdom
Hybrid / WFH Options
X4 Technology
within the trading domain, using OutSystems as a core platform. You’ll be working alongside traders, analysts, and IT stakeholders to deliver bespoke, high-performance applications that support and optimise front-office trading activity. The Responsibities: Design, develop, and maintain OutSystems applications to support day-to-day trading activities … trading requirements and deliver effective solutions Develop and optimise complex SQL stored procedures and database components that underpin trading applications Ensure code quality, system performance, and scalability across the platform Play a key role in the ongoing digital transformation of trading workflows The Requirements: Proven experience as a developer … working with OutSystems, ideally within financial services, trading, or energy sectors Strong hands-on knowledge of SQL, particularly around stored procedures, performance tuning, and database design Experience working in fast-paced, agile environments with a focus on mission-critical systems Ability to communicate effectively with both technical and More ❯
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AWS Engineer

cardiff, United Kingdom
Hybrid / WFH Options
Intellect Group
ECS , and CDK . Implement serverless architectures and automation solutions to optimise the detection of fraud in digital files. Ensure the scalability, reliability, and performance of the AWS infrastructure, supporting real-time analysis of images, PDFs, and metadata. Work closely with development and product teams to integrate cloud services … of serverless architectures and cloud automation . Hands-on experience with infrastructure as code (e.g., AWS CloudFormation , Terraform ). Solid knowledge of cloud security, performance tuning, and cost optimisation best practices. Familiarity with AI-driven applications or fraud detection solutions is a plus. Ability to work independently, solve More ❯
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Java Lead Architect

cardiff, United Kingdom
Regal Cloud
and coding Strong on integration patterns and XML tech Confident translating specs into clean, documented solutions Experienced with agile teams, CI/CD, and performance tuning If you're a strong technical lead who still loves writing great code please apply More ❯
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Performance Tuning
Cardiff
25th Percentile
£57,500
Median
£60,000
75th Percentile
£62,500