12 of 12 Contract Low Latency Jobs in London

Senior Java Developer - Electronic Trading

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Contract
join its Electronic Fixed Income (eFI) Technology team. This role sits in a front-office electronic trading environment , focused on building and optimising low-latency, high-performance Java trading systems used by institutional clients. A core part of the engagement will be supporting the rollout and optimisation … TransFICC connectivity , alongside ongoing performance improvements across pricing, RFQ, execution, and market-data workflows. Required Experience Extensive background in electronic trading systems Strong low-latency Java development experience Deep knowledge of Core Java , concurrency, and multi-threaded design Proven delivery of high-volume, real-time trading platforms Strong ...

FX e Trading Senior Full Stack Engineer (React TypeScript + Java)

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
secure systems. Partner closely with product, trading, and infrastructure teams to deliver features end-to-end—from UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What … real-time streaming. Build performant and accessible UIs with modular, reusable components; 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 ...

Java Developer

Hiring Organisation
Randstad Technologies Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £800/day
Race to Zero: Senior Java Low-Latency Engineer (Fixed Income) 6 Months Contract London Hybrid Role Competitive daily rate. Our client "A premier global electronic trading powerhouse" is looking for a Java Specialist to lead a mission-critical shift in their E-Fixed Income (eFI) architecture. They aren … just looking for a "developer"-we need a systems artist who understands that in this world, latency is the only metric that matters . The Tech Stack The Core: Low-latency Java (Mechanical Sympathy, Memory Tuning, GC Avoidance). The Connectivity: TransFICC specialization, TCP/UDP, Kernel ...

Senior Full Stack Engineer – FX e-trading – Java / React

Hiring Organisation
Atrium Workforce Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£759 - £900 per day
secure systems. Partner closely with product, trading, and infrastructure teams to deliver features end-to-end—from UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What … real-time streaming. Build performant and accessible UIs with modular, reusable components; 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 ...

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
secure systems. You will partner closely with product, trading, and infrastructure teams to deliver features end-to-endfrom UI and desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. 4 days onsite … real-time streaming. Build performant and accessible UIs with modular, reusable components; 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 ...

Senior Quantitative Developer

Hiring Organisation
Vallum Associates Limited
Location
London, United Kingdom
Employment Type
Contract
develop, and maintain high-performance trading, pricing, and analytics systems Implement quantitative models and strategies using C/C++ and Python Optimise applications for low latency, high throughput, and stability Work extensively in Linux environments , including automation via shell scripting Collaborate with quants, traders, and technology teams … development workflows Proven experience delivering mission-critical systems in financial services Desirable Skills Background in quantitative finance, trading systems, or capital markets Experience with low-latency architectures, multithreading, and concurrency Understanding of numerical methods, statistics, or financial models ...

Java Developer - Equities Algo Trading x2

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£800 - £950 per day
reviewing, and providing second-level support Qualifications: Skills: Strong command of core Java APIs (Concurrency, collections) Experience with multithreaded systems, Java garbage collection, and low-latency I/O Knowledge of design patterns Experience with TDD Familiarity with Eclipse/IntelliJ, GIT, continuous integration servers, and build tools ...

Senior Python Developer - Digital Trading Analytics

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£380 - £465 per day
/CD automation, TDD/BDD practices, and containerised deployments via Kubernetes. Performance Tuning: Diagnose and resolve bottlenecks in production systems to ensure low-latency data delivery. Technical Profile Python Mastery: Expert-level Python 3.9+ (Design Patterns, OOP, logical data modelling, pandas, SQLAlchemy). Data Engineering: High-scale ...

Front Office Strategist

Hiring Organisation
Lorien
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
times - Develop tools that help ensure systems are reliable and efficient - Rationalize and enhance the platform reliability - Support the new pricing setup + the low latency platform Development (~70%) - Maintain and enhance existing support, monitoring and analysis tools - Work with traders/research on the requirements ...

Systems Integrator (IT)

Hiring Organisation
Rullion Engineering Cumbria
Location
Teddington, London, United Kingdom
Employment Type
Contract
Contract Rate
£680/day
with DDS middleware, high-speed networking, and time-sensitive systems. * You will be experienced in LabVIEW for instrumentation integration. * You will have experience in low level programming, system architecture, operating systems, or device architecture * You will have experience in setting up and deploying test automation frameworks using GitHub Actions … network time synchronization protocols (PTP, NTP). * Experience with IT security best practices and compliance frameworks. * Familiarity with real-time operating systems (RTOS) and low-latency architectures. Please note all candidates MUST be eligible to obtain or already hold SC Clearance. Interested in this position? please click "apply ...

Payment Solution Architect

Hiring Organisation
Ascendion
Location
Bromley, Greater London, Bromley Town, United Kingdom
Employment Type
Permanent, Contract
preferably Payments. Strong expertise in microservices architecture, cloud platforms (AWS/Azure/GCP), containers, Kafka, and distributed systems. Proven experience designing high-throughput, low-latency applications. Strong background in architecture governance , design reviews, and decision documentation. Experience working across Agile and Waterfall delivery models. ...

Solution Architect

Hiring Organisation
Stackstudio Digital Ltd
Location
West London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £400 to £500 per day
Engagement: Act as a trusted advisor to senior business leaders, leading workshops to translate business requirements into technical blueprints. Performance Optimization: Ensure high availability, low latency, and resilience in payment processing to maximize transaction success rates and improve customer experience. Project Leadership: Provide technical governance from design through ...