23 of 23 Performance Optimisation Jobs in the City of London

Rust Engineer

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
currently working with an early-stage infrastructure company building high-performance distributed systems, with Rust at the core of the stack, who are looking for a Head of Engineering to lead the design, build, and scale of a genuinely differentiated systems architecture. This is a pivotal role reporting directly … team growth. This is a rare opportunity to join at the right stage and shape both the technology and engineering culture of a high-performance infrastructure platform with significant upside. Responsibilities Own engineering across distributed systems, backend infrastructure, storage systems, APIs, and real-time data pipelines. Lead development ...

Technical Lead, Machine Learning

Hiring Organisation
Consol Partners
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 150,000 - 180,000 Annual
company's core ML systems, including: Machine Learning Infrastructure End-to-end training pipelines Evaluation and benchmarking frameworks Production inference architecture Monitoring, observability, and performance systems Deployment and scaling infrastructure Large Language Models Fine-tuning foundation models using: LoRA QLoRA SFT DPO Distillation Improving model reliability and reasoning capabilities … Building systems that move beyond simple chat applications into real-world task execution Production AI Systems GPU optimisation and infrastructure efficiency Low-latency inference systems Scalability and reliability engineering Cost and performance optimisation AI safety and evaluation frameworks Technical Leadership Drive architectural decisions across the ML platform ...

Machine Learning Engineer

Hiring Organisation
RedTech Recruitment Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
technical decisions, while also collaborating closely with a highly technical team Experience in any of the following would be beneficial: Python memory management and performance optimisation GPU optimisation and acceleration Responsibilities for Machine Learning Engineer: Deploy and integrate new machine learning models into advanced commercial software products … projects from rapid prototyping and experimentation through to production implementation Optimise machine learning models for speed, scale, runtime and memory usage Help improve the performance and scalability of existing AI systems Develop innovative new features using machine learning and AI technologies Explore new technologies and approaches to solve complex ...

Head of Sales

Hiring Organisation
Hays Business Support
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 - 140,000 Annual
ensuring consistent delivery against ambitious commercial objectives. Key responsibilities include: Developing and delivering the national sales strategy to drive sustainable revenue growth Owning sales performance, forecasting, budgeting and territory planning Building, coaching and developing a high-performing field sales team Creating a culture of accountability, continuous improvement and commercial … excellence Establishing scalable sales processes, performance metrics and reporting frameworks Monitoring key business performance indicators and identifying opportunities for growth and optimisation Collaborating with senior leadership and cross-functional teams to align commercial objectives with wider business goals Building strong relationships with executive-level stakeholders across ...

Contract Technical Lead (Azure Databricks Platform)

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
near real-time. They're looking for an experienced Technical Lead to define the technical direction of the Azure Databricks platform, driving architecture, performance optimisation and engineering best practices across one of the organisation's most strategic cloud modernisation programmes. Responsibilities for the Contract Technical Lead – Azure Databricks … through to production. Drive best practices across data engineering, platform architecture, governance, security and engineering standards, mentoring teams and influencing technical direction. Optimise Databricks performance, including Structured Streaming, Delta Live Tables and cloud cost efficiency. Partner with business stakeholders, architects and engineering teams to translate complex requirements into scalable ...

DevOps Engineer

Hiring Organisation
DGH Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
manage AI platforms and agent infrastructure - Build and maintain CI/CD pipelines and DevOps workflows - Implement observability, monitoring, and logging solutions - Optimise performance, scalability, and cost efficiency - Support AI teams with infrastructure, deployment, and integration - Ensure platform security, compliance, and high availability - Automate infrastructure using Infrastructure as Code … practices - Experience with Kubernetes/containerisation technologies - Strong programming skills (e.g. Python, Go, Node.js) - Experience with observability tools (e.g. OpenTelemetry, Datadog) - Understanding of security, performance optimisation, and scalability Desirable Skills - Experience working on AI/ML platforms or deployments - Exposure to large-scale distributed systems - AWS certifications ...

Senior Technical Lead

Hiring Organisation
InstaResource Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Core Technical Skills: .NET/C# JavaScript/TypeScript React or Next.js RESTful APIs GraphQL CI/CD pipelines (Azure DevOps or GitHub Actions) Performance optimisation WCAG 2.1 accessibility standards SEO best practices Agile/Scrum delivery experience. Desirable: Sitecore MVP. Active participation in the Sitecore community. Professional ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £120000/annum
that support real-world trading strategies. As a senior member of the team, you will contribute both technically and strategically, helping shape development standards, performance optimisation, and system scalability. You will primarily work within a C# .NET SQL Server ASP.NET ecosystem, developing high-performance, reliable, and maintainable … applications. Key Responsibilities Design, develop, and maintain high-performance applications in C# and .NET Lead architectural discussions and contribute to technical direction Build scalable, reliable systems to support automated trading and research Develop and optimise database solutions (SQL Server or equivalent) Improve performance, reliability, and automation across systems ...

Systems & Cloud Engineer

Hiring Organisation
Larbey Evans
Location
City Of London, England, United Kingdom
leadership, escalation support, and operational oversight for core enterprise infrastructure, including VMware, Windows Server, Active Directory, DNS, and DHCP Drive infrastructure design, capacity planning, performance optimisation, root cause analysis, and continuous service improvement Participate in an on-call rota and collaborate across teams to maintain service availability ...

Management Consultant Access Network Consultant

Hiring Organisation
Accenture
Location
City of London, London, United Kingdom
technology expertise. We support Tier-1 operators and technology vendors through large-scale RAN transformation programmes — from strategy and design through to deployment, optimisation, and ongoing operations. We leverage emerging technologies including Open RAN, 5G Advanced, 6G, Satellite, Generative AI, and Autonomous Networks to deliver measurable business outcomes … technical design session with a vendor engineering team. This role spans the full RAN value chain: pre-sales solutioning, architecture definition, programme delivery, performance optimisation, and the application of AI/ML and Autonomous Network techniques to transform how networks are operated. Support end-to-end RAN transformation ...

Senior Software Engineer – Data Visualisation & Graphics | London

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
dashboard-building role. You’ll be working on the underlying systems that make complex visualisations fast, accurate, and scalable. The challenges range from rendering performance and interaction design through to algorithms, graphics, API design, and numerical correctness. What you’ll be doing Designing and building core charting features used … developers around the world Working across rendering, interaction, animation, and visualisation infrastructure Solving performance-critical problems involving Canvas, SVG, and large datasets Improving correctness, precision, and usability across a sophisticated charting platform Designing APIs that are elegant, flexible, and easy for developers to adopt Taking features from initial concept ...

Azure Data Engineer

Hiring Organisation
Vallum Associates
Location
City of London, London, United Kingdom
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 ...

Strategic Analytics Engineer - Core Kannon Platform

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
core functionality for strategic analytics, primarily using C++ and Python, across trading, risk and P&L domains. The role focuses on cross-asset infrastructure, performance optimization and robust DevOps practices, with exposure to Linux and Windows environments and collaboration with quants, traders and engineers. #J-18808-Ljbffr ...

SQL Database Administrator

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - 600 per day
Groups, Windows Clustering and High Availability/Disaster Recovery technologies. Experience administering SSRS, SSIS and SSAS. Strong understanding of SQL Server upgrades, migrations and performance optimisation. Experience supporting SQL Server within VMware virtualised environments. Knowledge of PowerShell and Power BI. Experience working within structured Change Management and Incident Management ...

PowerServer Engineer

Hiring Organisation
Henderson Scott
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£93,921
help shape the future roadmap for a key enterprise platform. We're looking for experience with: PowerBuilder and PowerServer (Appeon) Application assessment, troubleshooting and performance optimisation Legacy application modernisation SQL Server and/or Oracle databases Client-server and web-based applications Producing technical recommendations and documentation Experience ...

Global Banking & Markets - Software Engineer - Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Docker), and JVM tuning for containerized workloads. Observability & Operations: Application instrumentation (metrics, distributed tracing, structured logging) and production support in high‐availability environments. Data & Performance: Data modeling, SQL/NoSQL databases, caching strategies, and performance optimization in latency‐sensitive systems. Security: Enterprise security patterns; authentication protocols, mutual ...

Backend Software Engineer - Distributed Systems

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
platform that underpins the company's real-time infrastructure. Working on highly scalable distributed systems, you'll design and build new platform capabilities, improve performance and reliability and solve complex engineering problems at scale. You'll contribute across low latency messaging, Pub/Sub services, state synchronisation and next … modern server-side language You have experience building or operating distributed systems, messaging platforms, event-driven architectures or streaming technologies You understand scalability, concurrency, performance optimisation and fault tolerant system design You enjoy solving complex technical challenges and delivering high quality, production ready software You're comfortable working ...

Head of FP&A

Hiring Organisation
Goodman Masson
Location
City of London, Cheap, United Kingdom
Employment Type
Permanent
impact narrative presentations for the executive leadership team and Board Embed deeply with commercial, product and growth teams as an internal strategic consultant, driving performance optimisation and ROI analysis Provide financial modelling and decision support for high-profile initiatives including geographic expansion, monetisation strategy and new product lines ...

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 Communicate … 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 ...

Senior React Developer

Hiring Organisation
E-Solutions
Location
City of London, London, United Kingdom
TypeScript & Low-Latency) Role Overview We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise … such as Playwright or Cypress (Good to Have) Desired Experience ✅ Experience working on financial services or trading platforms is an advantage ✅ Strong understanding of performance optimization and low-latency UI applications ✅ Experience developing highly available, mission-critical systems ...

Senior Solution Architect

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Collaborate with business and change teams to define target operating models and develop business cases for technology initiatives. Support requirements gathering and business process optimisation, maximising the use of core platforms while minimising unnecessary custom development. Champion architecture governance, design patterns and technology standards. Promote Agile delivery and DevSecOps … practices throughout the software development lifecycle. Work closely with technical leads and development teams to review designs, provide architectural guidance, support code quality and performance optimisation. Identify technical risks and define appropriate mitigation strategies. Evaluate emerging technologies and industry trends to recommend innovative, cost-effective solutions. Produce high-quality ...

Senior Data Analyst

Hiring Organisation
GamCare
Location
City of London, London, United Kingdom
Employment Type
Permanent, Part Time
Salary
£45,000
turn complex information into clear, actionable insight? This is an exciting opportunity to play a leading role in how GamCare uses data to understand performance, improve services and support evidence-based decision-making that will help make a difference to the lives of people affected by gambling-related harms. … datasets, identify trends and opportunities, and translate your findings into meaningful recommendations. You will develop and maintain datasets, dashboards and reports, helping colleagues monitor performance, understand outcomes and demonstrate the impact of our work. You will also review and improve the systems and processes that support service delivery, ensuring ...

Frontend Architect - React

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Latency) Role Overview- We are seeking a highly skilled UI Developer with strong expertise in building time-critical, high-availability, and high-performance applications. The ideal candidate will have hands-on experience across the full UI development lifecycle, including design, development, testing, and deployment. Technical Skills & Expertise- Frontend Technologies … Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading platforms is an advantage Strong understanding of performance optimization and low-latency UI applications Experience with highly available, mission-critical systems. ...