13 of 13 Performance Tuning Jobs in the City of London

SQL Database Administrator

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£450 - 550 per day
proactive DBA to manage, assess and future-proof their database environment. Key Skills required from the SQL DBA: Microsoft SQL Server administration (multiple versions) Performance tuning, indexing, query optimisation and troubleshooting Database version upgrades and consolidation projects Backup, recovery and high availability strategies Working within complex or legacy … Ownership of database strategy and continuous improvement Key responsibilities of the SQL DBA: Full ownership and management of all SQL databases across the organisation Performance tuning and optimisation across the entire database estate Conducting a full discovery of existing databases, configurations and dependencies Identifying risks, inconsistencies and improvement ...

Solace Administrator

Hiring Organisation
BGC Group
Location
City of London, London, United Kingdom
join our Messaging team. You will be responsible for managing and supporting our enterprise messaging infrastructure built on Solace PubSub+, ensuring high availability, optimal performance, and reliability across production and non-production environments. This includes working on incident response, capacity planning, WAN optimization, and system observability using tools like … software brokers across environments (on-prem and cloud). Provide production support for messaging-related incidents, including root cause analysis and resolution. Monitor system performance and health using Prometheus and Grafana ; proactively identify and address anomalies. Configure and optimize Solace across WAN environments , ensuring low-latency, secure, and reliable ...

IT Applications Manager/Applications Manager

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£95,000
Sills and Experience: * Proficient in SQL, C#, Python, Java, HTML/CSS, and related development frameworks. * Understanding of API integration, data modelling, and application performance tuning. * Strong project management skills are essential for implementing new systems or major upgrades. * Experience managing software lifecycle tools (e.g., Jira, Azure DevOps, ManageEngine ...

.Net Developer

Hiring Organisation
Wave Talent
Location
City of London, London, United Kingdom
testable and maintainable code following best practices Participate in code reviews and contribute to improving engineering standards Support production systems, including bug fixing and performance tuning Work within Agile/Scrum delivery teams Required Skills & Experience Strong commercial experience with C# and .NET/.NET Core Experience building ...

Data Engineer

Hiring Organisation
Youngs Employment Services
Location
W12, Wormholt and White City, Greater London, United Kingdom
Employment Type
Permanent
Salary
£55000 - £70000/annum Excellent Benefits
solutions using Fabric components: o Data Factory (pipelines, orchestration) o Data Engineering (Lakehouse, notebooks, Apache Spark) o Data Warehouse (SQL endpoints, schemas, MPP performance tuning) o Real-Time Analytics (KQL databases, event ingestion) o Manage and enhance OneLake architecture, delta lake tables, security policies, and data governance within ...

KDB Developer

Hiring Organisation
James Joseph Associates Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
high-volume datasets from internal trading platforms and external market data feeds. Create and refine efficient data-access frameworks to support live dashboards, execution performance analysis, and market microstructure research. Design and implement complex event processing (CEP) workflows to detect data issues in real time and generate actionable signals. … Diagnose problems and continuously strengthen the platforms reliability, performance, and cost efficiency. Contribute across the full software development lifecyclefrom initial research and prototyping through delivery, testing, deployment, and ongoing support. SKILL/EXPERIENCE REQUIRED: Several years of commercial experience in data engineering, analytics development in a similar high-performance ...

Application Support Engineer – Elite Systematic Trading Firm - Prop Trading - Market Leading Compensation - Hybrid - London

Hiring Organisation
Mondrian Alpha
Location
City of London, London, United Kingdom
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 Ensure maximum uptime of latency-sensitive trading platforms, proactively identifying and resolving production issues. Automate … role in onboarding new trading desks, products, and exchanges—delivering low-latency infrastructure and reliable integration. Ideal Candidate Profile 3+ years’ experience supporting high-performance trading systems in a Python and Linux-heavy environment. Proven expertise in FIX protocol, trading workflows, and exchange connectivity. Skilled in scripting for automation ...

C++ Software Engineer

Hiring Organisation
Durlston Partners
Location
City of London, London, United Kingdom
London or has the right to work in London. You will be part of a highly collaborative, low-ego engineering culture that prioritises performance, innovation, and impact. Working alongside some of the brightest minds in quantitative trading and systems engineering, you will build and optimise ultra-low latency, high … throughput systems that operate at scale. Key Responsibilities: Design and implement high-performance C++ systems for low-latency trading Optimise existing code for speed and reliability under production workloads Collaborate closely with traders, researchers, and fellow engineers to develop scalable infrastructure Work across the full software lifecycle ...

Adobe AEM Implementation Consultant

Hiring Organisation
ClearCourse
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
component libraries Migrate and restructure content while protecting URLs, redirects and SEO value Integrate AEM with Adobe Assets, Analytics, Target and Journey Optimizer Configure performance, caching and page load optimisation across sites Ensure governance, consistency and best-practice implementation Resolve technical build, integration and performance issues Work closely … component configuration Strong background in large-scale content migration and content modelling Experience integrating AEM with Adobe Experience Cloud products Strong understanding of performance tuning, caching and Core Web Vitals Solid technical SEO knowledge within AEM Experience working within governed enterprise AEM environments Confident communicator able to work ...

Mainframe Modernization - IBM DataPower Engineer

Hiring Organisation
DCV Technologies Limited
Location
City of London, London, United Kingdom
Employment Type
Contract
months contract position Role description: As a IBM DataPower engineer with mainframe Modernization experience , you will be responsible for designing and implementing secure, high-performance integration solutions using IBM DataPower Gateway to expose mainframe services (CICS, IMS, DB2, MQ) as modern APIs (REST/JSON, SOAP). Enable legacy … XSLT/GatewayScript transformations and schema validations. Automate deployments via SOMA/REST APIs, CI/CD tools (Jenkins, Ansible). Ensure high availability, performance tuning, and compliance (PCI DSS, GDPR). Your Profile Essential skills/knowledge/experience: (Up to 10, Avoid repetition) Strong experience ...

Founding Embedded Software Engineer

Hiring Organisation
Sekkari
Location
City of London, London, United Kingdom
Integration: Port and optimize real-time operating systems (RTOS) or Linux kernels to run on our custom electronic architecture. Driver Development: Write high-performance drivers for custom memory controllers, interfacing the electronic L2/L3 caches with the optical domain. Hardware Abstraction: Develop the HAL (Hardware Abstraction Layer) that … allows high-level autonomous software to leverage our chip’s unique electro-optical speed. Performance Tuning: Work with the IC design team to profile and eliminate bottlenecks between the software execution and the hardware logic. Bootloader & Security: Design secure boot sequences and firmware update mechanisms for edge deployment ...

Desktop Support Technician

Hiring Organisation
Randstad Technologies Recruitment
Location
Westminster, London, City of Westminster, United Kingdom
Employment Type
Contract
Contract Rate
£200 - £201/day
problems in computer systems and provide technical solutions with a goal of 90% First Call Resolution. Troubleshooting: Expertly troubleshoot OS issues (BSOD, App Crashing, Performance tuning), VPN connectivity, and networking basics. Incident Lifecycle: Take ownership of employee issues from start to finish. If escalation is required, monitor ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
+ Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure systems. You will partner closely with product, trading, and infrastructure teams to deliver features end-to-endfrom UI and desktop container … drive state management, data visualization, and UX for trading workflows. Optimize latency, throughput, and reliability across the stack; instrument observability (metrics, tracing, logging) and performance profiling. Establish engineering best practices: code standards, testing strategies (unit/integration/E2E), CI/CD, secure coding, and release management. Mentor engineers ...