17 of 17 Performance Tuning Jobs in the City of London

Cerner Specialist

Hiring Organisation
ECS Resource Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
behalf of a global IT Services Provider who are looking for a Data Consultant (Cerner/Oracle Health) to support the remediation of performance issues and other problems associated with data pipelines. Key Responsibilities Remediate data pipeline and performance issues Provide DBA expertise across performance tuning … data requirements Requirements: Excellent understanding of Cerner (Oracle Health Data) Advanced SQL skills Minimum 5 years' healthcare sector experience Strong DBA knowledge, particularly performance tuning Strong understanding of data architecture and data structures Knowledge of national healthcare submissions and data dictionaries Excellent problem-solving and stakeholder management skills ...

Senior Azure Data Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £450/day
operational processes using SQL, Python, or PowerShell. Database Administration: Administer and manage SQL Server environments hosted on Azure VMs, handling security, backup/recovery, performance tuning, and access management. Platform Modernization: Support database migrations, system upgrades, and platform modernization initiatives. Governance & Security: Implement data quality controls, governance standards … Server development and administration skills, including hands-on experience managing SQL Server on Azure Virtual Machines. Database Expertise: Proven track record in database migration, performance tuning, backup/recovery, and security implementation. Scripting & Automation: Strong scripting abilities in SQL, Python, and/or PowerShell. Data Formats: Experience working ...

Production Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
ability to lead multiple projects simultaneously, delivering to deadlines Expert-level experience with MSSQL, Oracle and Sybase database environments, including complex query-writing and performance tuning A natural leader who relishes the prospect of supporting an expanding business and driving continuous improvement in support functions Motivated self-starter … scope for growth. And connections act as a catalyst. Sparking richer solutions for our clients to break new ground, modernising markets for future performance, and creating dynamic careers for our people. Our capacity to connect builds trust, supports communities and gives us the power to anticipate and respond ...

AVP Software Developer

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Python and SQL, ensuring they are efficient and robust. Database Solutions: Build and optimise database solutions, focusing on schema design, indexing strategies, and query performance tuning. ETL/ELT Pipelines: Develop and maintain pipelines for ingesting, transforming, and serving data across systems. Integration: Seamlessly integrate applications with data lakes ...

PL/SQL Developer (Oracle & IBM DataStage)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
development best practices. Essential Skills Strong commercial experience with Oracle PL/SQL . Proven IBM DataStage ETL development experience. Strong SQL development and performance tuning skills. Experience delivering enterprise data integration solutions. Knowledge of data warehousing and ETL best practices. Experience working in Agile environments. Excellent analytical ...

PL/SQL Developer (Oracle & IBM DataStage)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£470/day Inside IR35
development best practices. Essential Skills Strong commercial experience with Oracle PL/SQL . Proven IBM DataStage ETL development experience. Strong SQL development and performance tuning skills. Experience delivering enterprise data integration solutions. Knowledge of data warehousing and ETL best practices. Experience working in Agile environments. Excellent analytical ...

Data Engineer (Databricks)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
solutions using Azure Databricks and Azure Data Factory Design and optimize data pipelines for processing large volumes of data (multi-million records) with high performance Participate in customer discussions, requirement analysis, and technical solution design Ensure code quality, performance tuning, and adherence to best practices throughout development … Azure Databricks development, including efficient handling of large datasets Strong working knowledge of Azure Data Factory for building complex ETL workflows Experience with performance optimization of data pipelines and distributed processing setups Proficiency in Scala development (hands‐on experience highly desirable) Solid understanding of Azure services relevant to data ...

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 ...

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 Architect

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
commitment to being a diverse and inclusive workplace, attracting and developing exceptional talent, supporting our teammates’ physical, emotional, and financial wellness, recognizing and rewarding performance, and how we make an impact in the communities we serve. At Bank of America, you can build a successful career with opportunities … scheduling of deployments Partner with APS and other teams to optimise monitoring configurations, events, and dashboards Produce reporting on tool adoption, usage, and key performance metrics Contribute to global discussions around the ongoing evolution of monitoring strategy, sharing insights and best practices What We Are Looking ...

Senior SharePoint Developer

Hiring Organisation
Larbey Evans
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£85,000 - £100,000 per annum
CSS3) Experience integrating SharePoint solutions using REST APIs, Microsoft Graph, C#, and .NET Hands-on management of on-prem SharePoint environments, including patching, upgrades, performance tuning, and troubleshooting Experience with Business Connectivity Services (BCS), External Content Types (ECTs), and SQL Server design and optimisation ...

SQL Team Lead - Banking

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
project delivery responsibility. The successful candidate will manage a team of SQL and database professionals, ensuring the delivery of high-quality data solutions, database performance, reliability, and project outcomes that support business objectives. Key Responsibilities Lead, mentor, and develop the SQL/Database team. Manage workload allocation, priorities … performance. Act as the technical escalation point for database-related issues. Design, develop, and optimise SQL queries, stored procedures, and database solutions. Ensure database performance, integrity, security, and availability. Drive best practice in database development, administration, and governance. Partner with business stakeholders to gather requirements and deliver solutions. Manage ...

Cassandra Database Engineer (NoSQL)

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £730/day
platform. Collaborate: Work closely with application and middleware teams, ensuring seamless data integration and alignment with business goals. Optimise: Take ownership of keyspace design, performance tuning, and operational readiness of the data platform. Documentation: Produce essential design documentation and operational runbooks for effective knowledge transfer. What … years of hands-on experience in NoSQL database engineering, specifically with Apache Cassandra. Proficiency in keyspace and table design, replication strategies, and performance tuning. Familiarity with Linux administration, CQL, and cluster operations. Experience in regulated environments, with a keen understanding of security measures. Join Us Today ...

IT Applications Analyst

Hiring Organisation
Larbey Evans
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £55,000 per annum
patching, and upgrades in coordination with change management procedures Manage user access controls, including provisioning, de-provisioning, and access reviews Monitor system health and performance; initiate health checks and proactively remediate issues Respond to and resolve incidents and service requests in line with SLAs Provide break/fix troubleshooting … tools Understanding of access management, patch management, and vulnerability remediation processes Familiarity with ITIL practices (Incident, Problem, Change, and Configuration Management) Exposure to application performance tuning, cloud platforms, or scripting (e.g., PowerShell, Python ...

Developer

Hiring Organisation
Infinity Quest
Location
City of London, London, United Kingdom
platform stability. Collaborate with product owners, architects, and other engineers to define implementation approaches and deliver backlog items. Support production stability through defect fixing, performance tuning, and continuous improvement. Contribute to secure, compliant, and well-documented solutions aligned with enterprise standards. Required skills and experience Hands-on ServiceNow ...

Cassandra Database Engineer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £706 per day
replication strategies and partitioning models. Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions). Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning. Manager cluster operations: node additions/decommissions, repairs (node ...

Cassandra Database Engineer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £706/day
replication strategies and partitioning models. Develop and optimise data models aligned to query patterns (denormalization ,partition key design, avoiding hotspots and wide partitions). Performance tuning: compaction strategies consistency levels, read/write path optimisation, JVM/GC tuning. Manager cluster operations: node additions/decommissions, repairs (node ...