16 of 16 Performance Tuning Jobs in the City of London

Database Administrator

Hiring Organisation
eTeam
Location
City of London, London, United Kingdom
resilience, and recovery of critical database platforms. The successful candidate will be a hands-on technical expert, actively involved in architecture decisions, database design, performance tuning, data reconciliation, and operational support. Key Responsibilities Lead the architecture, design, and implementation of enterprise database solutions on AWS. Design and maintain … Define, implement, and test backup, recovery, failover, and disaster recovery processes. Actively participate in architecture reviews, technical governance, and design authority decisions. Optimise database performance through query tuning, execution plan analysis, indexing, and configuration improvements. Provide hands-on troubleshooting and resolution of complex production issues. Perform data reconciliation ...

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 ...

Senior Compute Platform Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
platform of toolchains and workflows that accelerate application development, scale up computational experiments, and integrate all computation with project metadata, logs, experiment configuration and performance tracking over abstractions that encompass Cloud and High-Performance Computing. This metadata-forward, CI/CD-driven platform represents and enables the entire … Basic Qualifications Bachelor's degree in data engineering, Computer Science, Software Engineering or related discipline Experience with Python Experience with Cloud Experience with High Performance Compute (HPC) Preferred Qualifications Deep knowledge and use of at least one common programming language: e.g., Python, C++, Java, including toolchains for documentation, testing ...

Principal Engineer - Java - £110,000

Hiring Organisation
Intec Select Ltd
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 - 110,000 Annual
with data teams to define robust data pipelines and scalable cloud-based data platforms using tools like Apache Kafka, Snowflake, or Databricks. Monitoring and Performance Tuning: Implement advanced monitoring and observability solutions using tools like Prometheus, Grafana, or Datadog to proactively identify and resolve performance bottlenecks. Code … System Optimisation: Proactively analyse and optimise existing systems for improved performance, scalability, and maintainability. Core skill set for this position: Strong experience building and scaling banking payment systems including either Faster Payments, Real-Time Payments, Card payments, BACS, mobile wallets and APIs is a must have. Experience leading upon ...

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 ...

Database Reliability Engineer

Hiring Organisation
REC SOLUTIONS LIMITED
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
role requires a database reliability expert who can thrive in a dynamic environment, supporting and enhancing highly available, highly reliable database deployments, ensuring optimal performance, and mentoring junior engineers to support our applications. This position will play a vital role in ensuring my clients containerization initiatives succeed and support … Kubernetes and Docker, with substantial experience in automating reliable deployments, building and maintaining resilience within the database platform, secure database operations methodologies, observability and performance management. We are also exploring other NoSQL database engines to support our production strength applications, so experience with diverse database systems is a plus. ...

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 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 ...

Network Engineer

Hiring Organisation
Cadence Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
VNets, NSGs, Load Balancers, VPN Gateway, ExpressRoute) * Palo Alto firewalls and security policies * Secure connectivity between on-prem and Azure * Network troubleshooting, optimisation and performance tuning * Strong understanding of cloud security best practices This is an initial contract role, fully remote, and has been assessed as Outside IR35. ...

Mainframe Network Services Engineer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
/OS) Administration ✅ Host Network Services ✅ TCP/IP, VTAM & SNA ✅ IBM Communications Server ✅ Enterprise Extender ✅ Production Support & Incident Management ✅ Network troubleshooting and performance tuning ✅ Strong communication skills ✅ Mainframe Host Network Services experience ...

Snowflake Analytics Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Detailed Job Description **Key Responsibilities** * Build and maintain scalable modular data models using dbt inside Snowflake. * Transition complex, unoptimised Teradata views into high-performance Snowflake tables. * Implement data quality testing, version control (Git), and CI/CD pipelines for analytics code. * Manage Snowflake warehouse optimization, access controls (ABAC … query performance tuning. **Technical Requirements** **Core Platforms:** Expert Snowflake knowledge and advanced dbt (Core/Cloud) experience. **Modeling Concepts:** Semantic Modeling, Dimensional Modeling (Kimball), Business/Logical/Physical Modelling. **Skills:** Software engineering mindset applied to SQL; git workflows, and automated testing. ...

Senior C++ Programmer

Hiring Organisation
IT Search & Select
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£80,000
software house in the City of London is seeking an experienced Senior C++ Engineer to join its core development team. Youll work on high-performance trading and market-data systems used by hedge funds, proprietary trading firms and global investment banks technology where microseconds matter and engineering quality directly … architecture of systems that operate at scale across global markets. About the Role As a Senior C++ Engineer, you will design, implement and optimise performance-critical software that powers front-office trading workflows. Youll work closely with quants, traders and other engineers to deliver robust, low-latency solutions ...