26 to 50 of 155 Distributed Systems Jobs in London

Python Developer

Hiring Organisation
Radley James
Location
City of London, London, United Kingdom
next wave of technological advancements. Role Overview: As a Senior Python Engineer, you will be at the heart of our technology platform, building robust systems that enhance our trading strategies, risk management, and data analysis. You will collaborate closely with quants, data scientists, and traders, providing Python-based solutions … pipelines to process large datasets from multiple sources, including real-time market data and fundamental data. Implement robust APIs and microservices to integrate trading systems, analytics platforms, and external data providers. Optimize performance and scalability of existing systems, ensuring low-latency trade execution and real-time risk monitoring. ...

Lead MLOps Engineer

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Permanent
help facilitate this move!) This is a high-impact role within a fast-growing AI and robotics organisation focused on building advanced, scalable intelligent systems for real-world industrial applications. The position owns the machine learning infrastructure and MLOps foundations as products, platforms, and teams scale. You will play … role in transforming machine learning prototypes into reliable production systems, defining pragmatic engineering standards, and enabling fast, safe delivery of ML-powered capabilities. The role combines hands-on engineering, architectural ownership, and close collaboration with engineering and product teams. Key Responsibilities Own and scale the organisation's ML infrastructure ...

Founding Back-End Engineer

Hiring Organisation
Barrington James
Location
London Area, United Kingdom
underpins their next-generation platform. You’ll work closely with product and engineering leadership to design, implement, and scale reliable backend services, APIs, and systems — helping to turn cutting-edge ideas into real-world products. What You’ll Do Lead the design, development, and maintenance of scalable, secure … solutions that address business needs and technical challenges. Drive the full development lifecycle: requirements, design, implementation, testing, deployment, and support. Improve and optimise existing systems for performance, reliability, and maintainability. Conduct code reviews, provide technical leadership, and mentor junior engineers to uphold best practices. Identify and address security, performance ...

Founding Front-End Engineer

Hiring Organisation
Barrington James
Location
City of London, London, United Kingdom
underpins our next-generation platform. You’ll work closely with product and engineering leadership to design, implement, and scale reliable backend services, APIs, and systems — helping to turn cutting-edge ideas into real-world products. What You’ll Do Lead the design, development, and maintenance of scalable, secure … solutions that address business needs and technical challenges. Drive the full development lifecycle: requirements, design, implementation, testing, deployment, and support. Improve and optimise existing systems for performance, reliability, and maintainability. Conduct code reviews, provide technical leadership, and mentor junior engineers to uphold best practices. Identify and address security, performance ...

Solace Administrator

Hiring Organisation
BGC Group
Location
City of London, Greater London, UK
Qualifications: 3+ years of experience administering Solace PubSub+ messaging systems. Strong background in production support , preferably in a 24x7 enterprise environment. Experience working with distributed systems over WAN , with an understanding of networking, latency, and failover strategies. Solid experience with Prometheus and Grafana for system monitoring and alerting. … Proficiency in troubleshooting message delivery, persistence, and topic routing. Experience with capacity management , performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication and collaboration skills. Nice to Have: Experience ...

Java Tech Lead (London)

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
110k + Benefits The Role We're looking for a Java Tech Lead to join a high-performing tech consultancy delivering complex, business-critical systems for enterprise and scale-up clients. You'll take technical ownership of projects end-to-end, lead engineering teams, and work closely with clients … leadership role combining architecture, engineering excellence, and people leadership in a modern, agile consultancy environment. Responsibilities Lead the design and development of Java-based systems across multiple client projects Set technical direction, standards, and best practices Act as a hands-on technical leader, contributing high-quality code Mentor ...

AI Lead

Hiring Organisation
Experis
Location
London Area, United Kingdom
Consultancy Role Summary This is a senior leadership role responsible for the design, build, and delivery of production‐grade data‐science and agentic AI systems for complex, data‐rich organisations—primarily within specialty insurance . You will lead the development of scalable, measurable AI capabilities that materially improve underwriting … responsibilities across modelling, optimisation, AI engineering, and platform architecture. Key Responsibilities 1. AI Engineering & Data Science Leadership Architect and deliver end‐to‐end AI systems , spanning forecasting, classification, anomaly detection, optimisation, and agent‐based workflow orchestration. Translate business objectives across underwriting, exposure, claims, and delegated authority into deployable data ...

Neo4j Aura (Cloud Graph Database) Engineer

Hiring Organisation
Unitech Consultancy Services Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
with strong Neo4j Aura expertise to design, build, and operate scalable graph-based data platforms in the cloud. You will work on high-impact systems that leverage managed Neo4j AuraDB for Real Time insights, relationships, and complex data modelling. Key Responsibilities: Design and implement graph data models using Neo4j … AuraDB (Professional/Enterprise) Build and optimise Cypher queries for performance and scalability Integrate Neo4j Aura with cloud-native applications (REST, GraphQL, event-driven systems) Manage data ingestion pipelines (Kafka, Spark, ETL tools, APIs) Monitor, tune, and troubleshoot Neo4j Aura performance and availability Implement security, access control, and data ...

Senior ML Engineer

Hiring Organisation
Anson Mccade
Location
London, United Kingdom
Employment Type
Permanent
responsible for the "factory" that allows our models to live, breathe, and perform in high-pressure production environments across various industries. Key Responsibilities ML Systems Architecture: Design and implement the end-to-end lifecycle of ML models, including automated retraining, model versioning, and monitoring systems. Productionalization: Take validated prototypes … workloads on AWS, GCP, or Azure, utilizing managed services like SageMaker or Vertex AI. Data Foundations: Strong understanding of data modeling, feature stores, and distributed computing (e.g., Spark, Dask). Qualifications & Experience Experience: 5+ years in a software or data engineering role, with at least 3 years specifically focused ...

Senior Backend Engineer

Hiring Organisation
Ferry
Location
London, England, United Kingdom
expand the core services of the Ferry platform. You’ll be a critical member of the team in designing, developing and scaling the systems that power real-time manufacturing operations. Ferry is a flat startup, and you’ll work directly with the founders, designers and other engineers … computing are key pillars of the Ferry platform, where we augment Apache Flink and Kafka. Your Day to Day Build and scale the backend systems that power Ferry’s core platform Design and implement performant APIs, data pipelines and integrations Collaborate with frontend, platform and data engineers to deliver ...

Lead Data Engineer

Hiring Organisation
Mesh-AI
Location
Greater London, England, United Kingdom
learn from & will want to learn from you. Responsibilities You will be responsible for the technical implementation and delivery of modern data systems as well as AI enabled applications Solve end to end data problems/opportunities at scale Contributing to solution architecture & design Working with our customers … advisory, design & implementation of end-to-end solutions Contribute to internal initiatives such as; blogs, technical forums Requirements Good grasp of modern data engineering (distributed systems, data streaming, event-based architectures etc) and how to apply them Experience with software engineering and DevOps best practices as well ...

Senior Ruby Developer - EU Based

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
cloud optimisation initiatives What We’re Looking For Strong commercial experience as a Senior Ruby or Ruby on Rails Engineer Deep understanding of distributed systems and cloud-based application design Extensive hands-on experience with AWS Solid background in building scalable APIs, microservices, and backend systems Familiarity ...

Software Engineer

Hiring Organisation
algo1
Location
London Area, United Kingdom
backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate and a clear vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store … platform designed for scale & flexibility. Responsibilities: Encourage the adoption of AI-assisted product and software development workflows throughout the company Contribute to distributed, event-driven backend services connecting our web experience with information from remote devices and external data sources. Model and manage structured and semi-structured data across ...

Quantitative Developer (Global Quant Trading Firm)

Hiring Organisation
Venture Search
Location
City of London, London, United Kingdom
maintain data pipelines for large-scale market and reference data Develop backtesting, simulation, and analytics frameworks Contribute to trading, execution, and risk management systems Optimise system performance, reliability, and scalability Support live trading systems and participate in debugging and issue resolution Follow best practices in software development, testing … Experience in quantitative trading, market making, or financial technology Understanding of financial markets, derivatives, or market microstructure Experience with low-latency or performance-critical systems Knowledge of databases (SQL/NoSQL) and distributed systems Degree in Computer Science, Engineering, Mathematics, Physics, or a related quantitative field ...

Senior Technical Architect

Hiring Organisation
Cognizant
Location
London, United Kingdom
Employment Type
Permanent
technical or solution architect in complex digital or enterprise environments. Strong software engineering foundation, with practical knowledge of modern application architectures (e.g., microservices, APIs, distributed systems). Proven ability to design and document architectures using visual modelling techniques such as C4, UML, and data flow diagrams. Hands … Experience contributing to architectural communities of practice or governance forums. Prior consultancy experience working across multiple product teams or client environments. Personal Attributes Strong systems thinking and analytical capability, with the ability to understand complex environments quickly. Comfortable operating in ambiguous or fast-changing environments while maintaining architectural clarity. ...

Solace Systems Engineer - Finance

Hiring Organisation
Client Server
Location
London, England, United Kingdom
Solace Systems Engineer (Messaging Linux Networking) London/WFH to £100k Do you have Solace message system administration skills? You could be progressing your career at a global brokerage and technology firm, whilst enjoying a range of perks and benefits. As a Solace Systems Engineer you will support … office, with flexibility to work from home 1-2 days a week. About you: You have strong commercial experience of administering Solace PubSub+ messaging systems, with a good understanding of its architecture and operational demands in enterprise settings You have experience in production support, ideally within a 24x7 environment ...

Systems Administrator Solace - Finance

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Systems Administrator/Engineer (Solace Messaging Linux Networking) London/WFH to £100k Do you have Solace message system administration skills? You could be progressing your career at a global brokerage and technology firm, whilst enjoying a range of perks and benefits. As a Systems Administrator you will … office, with flexibility to work from home 1-2 days a week. About you: You have strong commercial experience of administering Solace PubSub+ messaging systems, with a good understanding of its architecture and operational demands in enterprise settings You have experience in production support, ideally within a 24x7 environment ...

Senior Data Architect - Quantexa Certified (Mandatory)

Hiring Organisation
PSD Technology Contracts Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Hadoop, HDFS) Proven experience with core Quantexa capabilities: Data Ingestion Pipelines Entity Resolution configuration Scoring logic implementation Contextual Network generation Solid understanding of distributed systems, data modelling, and performance optimisation Ability to write clean, production-grade, maintainable code Strong communication skills and experience working in cross-functional agile ...

GenAI Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
specialized tasks. • Knowledgeable about AI ethics and bias mitigation, with experience in implementing strategies to ensure air and unbiased AI solutions. • Serverless Computing and Distributed Systems • Deep Learning Frameworks (TensorFlow, PyTorch) • Innovation and Emerging Technology Trends • Strategic AI Vision and Roadmapping • Enthusiastic about working in a fast-paced ...

SDET

Hiring Organisation
Response Informatics
Location
London, United Kingdom
Employment Type
Permanent
masters degree in computer science, Engineering, or a related technical field. 8+ years of hands-on software development experience, including large-scale backend systems or platform engineering. Expert in Python with a strong understanding of object-oriented programming, testing frameworks, and automation libraries. Experience building or validating platform infrastructure … with hands-on knowledge of CI/CD systems, GitHub Actions, Jenkins, or similar tools. Solid experience with AWS services (Lambda, S3, ECS/EKS, Step Functions, CloudWatch). Proficient in Infrastructure as Code using Terraform to manage and provision cloud infrastructure. Strong understanding of software engineering best practices ...

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
TypeScript, modern tooling (bundlers, linting, testing frameworks). Backend: Core Java, Spring Boot (or similar), multithreading/concurrency, performance tuning. Experience designing and operating distributed systems (microservices, event-driven architectures, messaging/streaming). Strong understanding of computer science fundamentals (data structures, algorithms, concurrency, networking, OS). Proven … experience in e-trading or real-time financial systems (FX highly desirable), including familiarity with market data, order flows, and execution workflows. Hands-on with CI/CD, containerization, cloud/on-prem deployments, and observability. Comfort evaluating and integrating AI coding tools into daily development workflows. Excellent communication ...

Senior Java Game Engine Developer

Hiring Organisation
Eligo Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Senior Java Engineer who has led or been deeply involved in moving monolithic platforms to modern microservices architecture? If you enjoy complex systems, large scale integrations and building reliable back ends, this could be a great next step. Package: £80,000 to £90,000, 30 days holiday, private healthcare … cleaner, more modular system for the future. About the Company You’ll join a well established iGaming technology business that builds high performance systems used by operators across multiple markets. The engineering culture is collaborative, pragmatic and delivery focused, with plenty of opportunity to influence architecture and technical direction. ...

Senior Developer

Hiring Organisation
Champion Data
Location
City of London, London, United Kingdom
success within the company. About You Extensive industry experience in .Net Framework, .Net Core and C# Strong, hands-on experience designing and operating production systems on AWS Experience building and operating high-availability, data-intensive systems is highly regarded Experience contributing to system design and architectural decisions … distributed systems Experience building, maintaining, and improving CI/CD pipelines using Git-based workflows Experience working in an Agile team Good verbal communication skills with the ability to communicate effectively with team members, internal and external Strong critical thinker with problem solving aptitude Tell me more about ...

Head Of Engineering Java React Remote

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
healthcare coverage. Pension plan with employer contributions. Fully remote and flexible work setup within the UK. What you'll do Lead and mentor a distributed team of engineers, fostering a culture of quality, collaboration, and continuous improvement. Stay hands-on by architecting and delivering core systems and integrations … experience as a Head of Engineering, leading engineering strategy, architecture, and delivery in complex, fast-moving environments. Strong technical background in building cloud-based systems with hands-on backend development (Java) and modern front-end development (React) on Azure. Deep understanding of scalability, distributed systems, and performance ...

Java Developer - Low Latency

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
latency systems. - Strong understanding of multithreading, concurrency, and performance optimization. - Experience with frameworks and libraries such as Spring, Hibernate, and Netty. - Familiarity with distributed systems and network protocols. - Excellent problem-solving skills and attention to detail. - Effective communication and leadership skills. OTHER REQUIREMENTS (OPTIONAL) - Knowledge of financial services ...