Performance Tuning Jobs in London

1 to 25 of 113 Performance Tuning Jobs in London

Guidewire Cloud Technical Architect

London, United Kingdom
WeAreTechWomen
values comprise of Stewardship, Best People, Client Value Creation, One Global Network, Respect for the Individual and Integrity. Year after year, Accenture is recognized worldwide not just for business performance but for inclusion and diversity too. Overview: We are looking for an experienced Guidewire Cloud Technical Architect with deep experience in designing and delivering cloud infrastructure solutions for the … infrastructure for insurance platforms and workloads Lead infrastructure strategy for cloud migrations of insurance core systems, including on-prem to cloud transitions. Optimize cloud infrastructure using native services for performance, cost-efficiency, and high availability. Define best practices for cloud operations, monitoring, disaster recovery, and compliance. Insurance Application Cloud Enablement: Provide cloud infrastructure implementation support for core insurance platforms … and security frameworks specific to insurance carriers. Collaboration & Implementation: Partner with application architects, developers, DevOps, and IT operations to ensure seamless deployment and integration. Guide infrastructure sizing, load balancing, performance tuning, and environment scalability. Provide hands-on support for network design, identity management, container orchestration (e.g., Kubernetes), and cloud-native tooling. Conduct cloud readiness assessments and gap analysis More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Data Engineer

London, United Kingdom
Sandtech
hosted open source services exclusively. We strive towards a strong code-first, data as a product mindset at all times, where testing and reliability with a keen eye on performance is a non-negotiable. JOB SUMMARY A Senior Data Engineer, has the primary role of designing, building, and maintaining scalable data pipelines and infrastructure to support data-intensive applications … services for data storage, processing, and analytics. Data Quality and Governance: Implement and oversee data governance, quality, and security measures. Monitoring, Optimization and Troubleshooting: Monitor data pipelines and infrastructure performance, identify bottlenecks and optimize for scalability, reliability, and cost-efficiency. Troubleshoot and fix data-related issues. DevOps: Build and maintain basic CI/CD pipelines, commit code to version … and DevOps. Mentoring: Mentor and guide junior and mid-level data engineers. Technology Selection: Evaluate and recommend technologies, frameworks, and tools that best suit project requirements and architecture goals. Performance Optimization: Optimize software performance, scalability, and efficiency through architectural design decisions and performance tuning. QUALIFICATIONS Proven experience as a Senior Data Engineer, or in a similar role More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Cloud Database Administrator -PostgreSQL / MS SQL / Oracle

City of London, London, United Kingdom
Vallum Associates
migration experience. This role focuses on supporting enterprise-level systems, with PostgreSQL as the strategic database engine, and requires working collaboratively with development and infrastructure teams to ensure availability, performance, and scalability of data platforms. Key Responsibilities Cloud-Based & On-Prem DB Administration: Administer, configure, and optimize PostgreSQL, MS SQL Server, and Oracle databases hosted in AWS, Azure, and … on-premises. Database Design & Development: Design new schemas, optimize existing structures, and support database components aligned with application needs. Performance Tuning: Monitor and tune query and system performance across PostgreSQL, MS SQL, and Oracle DBs. Identify and resolve performance bottlenecks. Backup & Disaster Recovery: Define and implement robust backup/recovery procedures for multi-DB environments across … and scripting (e.g., Terraform, Ansible, AWS RDS/Aurora tools, Azure SQL automation). Monitoring & Health Checks: Utilize tools such as CloudWatch, Azure Monitor, OEM, or Prometheus to monitor performance and availability. Troubleshooting & Root Cause Analysis: Diagnose and resolve database incidents; conduct RCAs for critical incidents and outages. Collaboration: Work closely with DevOps, Application, and Security teams for seamless More ❯
Posted:

Cloud Database Administrator -PostgreSQL / MS SQL / Oracle

London Area, United Kingdom
Vallum Associates
migration experience. This role focuses on supporting enterprise-level systems, with PostgreSQL as the strategic database engine, and requires working collaboratively with development and infrastructure teams to ensure availability, performance, and scalability of data platforms. Key Responsibilities Cloud-Based & On-Prem DB Administration: Administer, configure, and optimize PostgreSQL, MS SQL Server, and Oracle databases hosted in AWS, Azure, and … on-premises. Database Design & Development: Design new schemas, optimize existing structures, and support database components aligned with application needs. Performance Tuning: Monitor and tune query and system performance across PostgreSQL, MS SQL, and Oracle DBs. Identify and resolve performance bottlenecks. Backup & Disaster Recovery: Define and implement robust backup/recovery procedures for multi-DB environments across … and scripting (e.g., Terraform, Ansible, AWS RDS/Aurora tools, Azure SQL automation). Monitoring & Health Checks: Utilize tools such as CloudWatch, Azure Monitor, OEM, or Prometheus to monitor performance and availability. Troubleshooting & Root Cause Analysis: Diagnose and resolve database incidents; conduct RCAs for critical incidents and outages. Collaboration: Work closely with DevOps, Application, and Security teams for seamless More ❯
Posted:

Database Architect

London Area, United Kingdom
Peninsula
department. MAIN RESPONSIBILITIES Database estate administration and monitoring Managing application system Disaster Recovery and high availability Managing backup and recovery strategies/automation of maintenance and batch processing Database performance tuning including TSQL/Procedural performance tuning (Optimizer and Index usage) Database design and architecture, development and administration Setting up best practice database development and acting … in a constructive manner Strong analytical skills Data Modelling Relational Database Design Database Application Development Microsoft - SQL Server/Transact SQL Server/Data Warehousing & Reporting PowerShell, DOS Database performance tuning Degree in Computer Science/Information Systems Design or equivalent Desirable: Knowledge of Fuel oil and the Bunker Industry desirable More ❯
Posted:

Database Architect

City of London, London, United Kingdom
Peninsula
department. MAIN RESPONSIBILITIES Database estate administration and monitoring Managing application system Disaster Recovery and high availability Managing backup and recovery strategies/automation of maintenance and batch processing Database performance tuning including TSQL/Procedural performance tuning (Optimizer and Index usage) Database design and architecture, development and administration Setting up best practice database development and acting … in a constructive manner Strong analytical skills Data Modelling Relational Database Design Database Application Development Microsoft - SQL Server/Transact SQL Server/Data Warehousing & Reporting PowerShell, DOS Database performance tuning Degree in Computer Science/Information Systems Design or equivalent Desirable: Knowledge of Fuel oil and the Bunker Industry desirable More ❯
Posted:

DV Cleared - Data Engineer - ELK & NiFi

London, UK
Defence
Collaborate with data architects and 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 of data pipelines and the … anonymization, and access control. Familiarity 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. Strong scripting and programming skills in Python, Bash, or other relevant languages. Working knowledge of cloud platforms (AWS, Azure, GCP) with a focus on data security and More ❯
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DV Cleared - Data Engineer - ELK & NiFi

West London, UK
Defence
Collaborate with data architects and 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 of data pipelines and the … anonymization, and access control. Familiarity 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. Strong scripting and programming skills in Python, Bash, or other relevant languages. Working knowledge of cloud platforms (AWS, Azure, GCP) with a focus on data security and More ❯
Posted:

DV Cleared - Data Engineer - ELK & NiFi

South West London, UK
Defence
Collaborate with data architects and 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 of data pipelines and the … anonymization, and access control. Familiarity 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. Strong scripting and programming skills in Python, Bash, or other relevant languages. Working knowledge of cloud platforms (AWS, Azure, GCP) with a focus on data security and More ❯
Posted:

Senior Site Reliability Engineer

London, United Kingdom
Hybrid / WFH Options
Stratospherec Ltd
platform is an essential platform in the life of millions of University students across the globe. In this role, you will apply your Software Engineering experience to enhance system performance and reliability, as well as building internal systems and capabilities that eliminate manual work through automation. You'll be joining our Platforms teams with globally-dispersed Site Reliability and … maintain monitoring/alerting/logging systems to identify and respond to incidents Ensure scalability and efficiency of cloud infrastructure and systems to handle traffic and data growth Conduct performance tests to identify and remediate bottlenecks Develop and maintain platform solutions, automate infrastructure provisioning, configuration, and management tasks using Infrastructure as Code. Monitor, review and tune databases to ensure … high availability and performance Collaborate with product engineering teams to design/build fit-for-purpose and observable software Required Skills and Experience: Proven experience in a SRE/DevOps/Platform Engineering role and having previously worked in a Software Engineering role in .Net and C# or Java or similar OO development language. Proficiency in C# or Java More ❯
Employment Type: Permanent
Salary: £85000 - £90000/annum Excellent Benefits package
Posted:

Senior Data Engineer - New Data Products (contract)

London, United Kingdom
Pacific Asset Management, LLC
will be part of a fast-paced, collaborative environment where adaptability, ownership, and a commitment to team goals are essential. If you're passionate about data, thrive in high-performance teams, and are driven to turn data into a strategic asset, we'd love to hear from you. What you will be doing Designing, building, and maintaining robust, scalable … fellow engineers to deliver well-defined, high-quality datasets Participating in sprint planning, daily stand-ups, and contributing to team OKRs and delivery goals Proactively identifying, diagnosing, and resolving performance and data quality issues across the data stack Enforcing best practices for data transformation, documentation, testing, and version control using dbt Supporting the evolution of our modern data stack … with cross-functional teams Thrives under pressure, is delivery-focused, and comfortable in a dynamic, fast-paced setting with shifting priorities Is laser-focused on data accuracy, quality, and performance Communicates clearly, openly, and constructively Technical Requirements Must-have experience: Significant experience in data engineering roles, including leading or participating in data platform migrations Strong hands-on experience with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior MongoDB DBA - Darwin

London, United Kingdom
Hybrid / WFH Options
International Catalyst Services, LLC
a primary focus on MongoDB. Your mission is to lead database administration efforts, define the MongoDB roadmap, and collaborate with IT Operations and other stakeholders to ensure the availability, performance, and security of our database systems. We are looking for a candidate who is passionate about database technologies and values collaboration, innovation, and continuous learning. You should have a … will count on you to: Lead the design, implementation, and maintenance of MongoDB database systems. Develop and enforce database security measures, policies, and best practices. Monitor and optimize database performance to ensure high availability, scalability, and efficient resource utilization. Collaborate with development teams on database-related activities, including schema changes, data migrations, and performance tuning. Troubleshoot and resolve … installation, configuration, and maintenance. Strong understanding of database concepts, principles, and best practices. Extensive experience with scripting languages such as PowerShell, Bash, and SQL. In-depth knowledge of database performance tuning and optimization techniques. Expertise in database security measures and best practices. Experience with backup and recovery procedures, including point-in-time recovery and disaster recovery planning. Proven More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Cloud DBA

London, United Kingdom
Techwolf
the maintenance and optimization of our PostgreSQL databases hosted on the AWS Cloud platform. The successful candidate will collaborate with cross-functional teams to ensure database reliability, availability, and performance, while also contributing to the overall architecture and strategy of our cloud-based database solution. 1. Database Design and Architecture: • Collaborate with software engineers, DevOps, and infrastructure teams to … AWS RDS, considering factors such as instance sizing, storage, and security. • Implement and manage replication, clustering, and backup/recovery strategies to ensure high availability and disaster recovery. 3. Performance Monitoring and Optimization: • Monitor database performance, proactively identifying and resolving performance bottlenecks, slow queries, and other issues affecting system responsiveness. • Tune database parameters, indexes, and queries for … e.g., AWS Certified Database - Speciality). In-depth knowledge of PostgreSQL database internals, architecture, and best practices. Proficiency in SQL, PL/pgSQL, and query optimization. Experience with database performance tuning and monitoring tools. Knowledge of containerization and orchestration technologies (Docker, Kubernetes). Familiarity with database security practices and compliance standards. Scripting and automation skills using languages like More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solace Messaging Administrator

London, Clerkenwell, United Kingdom
Eligo Recruitment Ltd
Solace Messaging Administrator London 3x a week Full-Time Permanent Salary on application You will be responsible for managing and supporting our enterprise messaging infrastructure, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, network optimization, and system observability using industry-standard monitoring tools. Required Skills & Qualifications … latency, and failover strategies. Solid experience with system monitoring and alerting tools (e.g., Prometheus, Grafana). Proficiency in troubleshooting message delivery, persistence, and topic routing. Experience with capacity management, performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication More ❯
Employment Type: Permanent
Posted:

Database Architect

London, United Kingdom
Hybrid / WFH Options
Experian Group
secure database solutions that support our business applications and analytics platforms. Reporting into VP Architecture you will work with engineering, data science, and DevOps teams to ensure data integrity, performance, and availability across the organization. What you'll do: Design and implement scalable database architectures for transactional workloads. Develop data models, schemas, and storage strategies that align with business … requirements and performance goals. Define database standards, best practices, and governance policies. Collaborate with application developers and data engineers to improve queries, indexing strategies, and data access patterns. Lead database migration, replication, and backup/recovery strategies across cloud and on-prem environments. Monitor database performance, ensuring high availability and disaster recovery readiness. Recommend new database technologies, and … and NoSQL databases (e.g., MongoDB, Cassandra, DynamoDB). Experience with data modeling, normalization, and schema design. Experience with cloud platforms (AWS highly preferred) and managed database services. Proficiency in performance tuning, query optimization, and database security. Familiarity with Infrastructure-as-Code tools (e.g., Terraform, CloudFormation) and CI/CD pipelines. Experience creating technical documentation and communicating with stakeholders. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Solace Messaging Administrator

London, South East, England, United Kingdom
Eligo Recruitment
Solace Messaging Administrator London 3x a week Full-Time Permanent Salary on application You will be responsible for managing and supporting our enterprise messaging infrastructure, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, network optimization, and system observability using industry-standard monitoring tools. Required Skills & Qualifications … latency, and failover strategies. Solid experience with system monitoring and alerting tools (e.g., Prometheus, Grafana). Proficiency in troubleshooting message delivery, persistence, and topic routing. Experience with capacity management, performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication More ❯
Employment Type: Full-Time
Salary: Competitive salary
Posted:

Senior .NET/C# Developer Oracle to PostgreSQL migration

London, South East, England, United Kingdom
Salt Search
in migrating legacy systems, especially from Oracle to PostgreSQL or similar. Strong understanding of PL/SQL and experience translating stored procedures into application logic. Familiarity with PostgreSQL, including performance tuning and SQL dialect differences. Experience working in hybrid environments where legacy and modern systems coexist. Comfortable using AI tools (e.g., GitHub Copilot, ChatGPT, code translators) to assist More ❯
Employment Type: Contractor
Rate: £500 - £600 per day
Posted:

Data Engineer (Projects)

London, United Kingdom
Chelsea and Westminster Hospital NHS Foundation Trust
strategic data and service transformation projects within the sector which need to provide in-depth triangulated intelligence to inform decision making, business planning, and the measurement of improvement in performance and quality Foster a culture of customer service by working closely with the decision-support function, responding effectively to the needs of the organisation and pro-actively seeking to … add value to the organisation through information analyses, tools and methods Foster close working relations with the Data, Digital, Performance, ICT and Finance departments in developing and maintaining quality information and information reporting systems Review and contribute to the development of Information Management and Data Quality policies and procedures to meet the needs of the Trust Support and mentor … environment Experience of using SQL programming and understanding of data engineering concepts, data pipelines, ETL/ELT processes, and data warehousing Desirable Understanding of data modeling, dimensional modeling, and performance tuning. Skills and knowledge Essential Proficiency in PRINCE2 for project management and Excel plus other tools (e.g. Visio) Familiarity with data structures, algorithms, cloud infrastructure and good software development More ❯
Employment Type: Fixed-Term
Salary: £64156.00 - £71148.00 a year
Posted:

Senior Database Developer (CDNA)

London, United Kingdom
P2P
PL/SQL development and has a strong background in relational data modeling. The ideal candidate will be responsible for designing, developing, and maintaining Oracle database applications, ensuring optimal performance and reliability. Responsibilities Design, develop, and maintain Oracle database applications using PL/SQL. Create and optimize complex SQL queries, stored procedures, functions, and triggers. Develop and implement relational … data models to support business requirements. Collaborate with cross-functional teams to gather and analyze requirements and translate them into technical specifications. Perform database performance tuning and optimization to ensure efficient data retrieva and processing. Conduct code reviews and provide constructive feedback to ensure code quality and adherence to best practices. Troubleshoot and resolve database-related issues, ensuring … SQL development. Strong knowledge of relational data modeling and database design principles. Proficiency in writing and optimizing complex SQL queries, stored procedures, functions, and triggers. Experience with Oracle database performance tuning and optimization techniques. Familiarity with Oracle tools and utilities such as SQL Plus, SQL Developer, and Oracle Enterprise Manager. Ability to work in a fast-passed Fintech More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Engineering Manager (Full Stack) - Ethical Marketplace

London, United Kingdom
Hybrid / WFH Options
Wolf & Badger
to define and execute on project goals. Ensure seamless communication across teams to ensure the back end vision aligns with product strategy and technical feasibility. Champion accessibility, usability, and performance as core principles in every design and implementation. Project Delivery & Quality Assurance: Manage timelines, set priorities, and allocate resources effectively to ensure timely delivery of high-quality features. Oversee … that automated tests, UI/UX tests, and code reviews maintain the integrity of the codebase. Advocate for coding best practices and high standards of quality in all deliverables. Performance & Optimisation: Continuously monitor and optimise both front-end and back-end code for speed, scalability, and performance. Focus on improving user experience through performance tuning and engineering More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Software Engineer Java, Integration, Kafka

London, South East, England, United Kingdom
Hybrid / WFH Options
Become
mindset is highly desirable Desirable Attributes Experience with event-driven architectures and messaging systems (e.g., Kafka) Exposure to Infrastructure as Code (e.g., Terraform, Ansible) Familiarity with observability tools and performance tuning Ability to mentor junior engineers and lead backend design initiatives Engagement Model Outside IR35 12-month initial contract with potential for extension or permanent employment Hybrid working More ❯
Employment Type: Contractor
Rate: £600 - £650 per day
Posted:

Java Engineer Java, Microservices, API

London, South East, England, United Kingdom
Hybrid / WFH Options
Become
collaborate across multidisciplinary teams Desirable Attributes Exposure to event-driven architectures and messaging systems (e.g., Kafka) Experience with Infrastructure as Code (e.g., Terraform, Ansible) Familiarity with observability tools and performance tuning Ability to mentor junior engineers and contribute to backend design leadership Prior consulting experience or experience in client-facing roles Engagement Model Outside IR35 12-month initial More ❯
Employment Type: Contractor
Rate: £600 - £650 per day
Posted:

FX Risk Lead Java Developer - VP

London, United Kingdom
Hybrid / WFH Options
Citigroup Inc
leadership, and innovation, as well as direct interaction with clients and business teams to deliver impactful solutions in the FX market. Key Responsibilities Plan, design, and develop distributed, high-performance, and resilient Java applications for FX Technology systems. Collaborate with business product owners and internal users to interpret and implement business requirements. Collaborate with cross-functional teams to ensure … with SQL/NoSQL databases (e.g., Oracle, MySQL, Postgres, MongoDB, Cassandra). Familiarity with messaging systems (e.g., Kafka, Tibco, Solace). Solid understanding of Linux/JVM internals and performance tuning. Expertise in modern software development practices, including TDD, Agile, and continuous integration. Hands-on experience with tools like JUnit, Mockito, and Unix/Linux environments. Qualifications: A wealth … receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Visit ourGlobal Benefitspage to learn more. Alongside More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Junior Data Engineer

London, South East, England, United Kingdom
Hybrid / WFH Options
Robert Half
Engineering, Mathematics, or a related field. 1-3 years of experience in a data engineering, data analytics, or software engineering role. Proficient in SQL for querying, data manipulation, and performance tuning. Hands-on experience with Azure Data Services (such as Azure Data Factory, Azure Synapse, Data Lake, or Logic Apps). Strong problem-solving skills and attention to detail. More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Messaging Administator - Solace

East London, London, United Kingdom
Marlin Selection
Messaging Administrator to join a high-performing team powering real-time data flow across enterprise systems. This is a hands-on role with wide scope covering production support, system tuning, and performance monitoring across cloud and on-prem environments. What Youll Be Doing: Managing and supporting Solace PubSub+ appliances and software brokers across cloud and on-prem platforms … Responding to production incidents and working on root cause analysis and long-term fixes Monitoring system health and performance with Prometheus, Grafana, and custom dashboards Optimising Solace across WAN environments for secure, low-latency message delivery Partnering with development and support teams to troubleshoot integration and message flow issues Driving capacity planning and performance tuning to stay More ❯
Employment Type: Permanent
Posted:
Performance Tuning
London
10th Percentile
£55,750
25th Percentile
£60,000
Median
£80,000
75th Percentile
£97,500
90th Percentile
£111,750