1 to 25 of 74 Permanent Distributed Systems Jobs in Central London

Backend Software Engineer - Distributed Systems

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Backend Software Engineer (Go/Node.js Distributed Systems) Remote/Hybrid to £120k + Equity Are you an experienced Backend Software Engineer who enjoys building distributed systems, real-time infrastructure and solving complex scalability challenges? You could be progressing your career at a high growth technology … Engineer, you'll join the team responsible for the core messaging 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 ...

Senior Backend Engineer

Hiring Organisation
WeDoTech
Location
London, Camden Area, United Kingdom
Employment Type
Permanent
Salary
£125000 - £145000/annum
journey. The foundations are in place, customers are using the technology, and the engineering team is now scaling both the platform and the systems behind it. They're looking for a Senior Backend Engineer who wants to be close to the product, customers and technical decisions rather than owning … small component within a much larger organisation. You'll be joining a highly technical engineering team and working on problems across AI, distributed systems, enterprise data and performance engineering. This is a hands on role with genuine ownership. You'll help determine how the platform evolves as usage ...

Principal Platform Engineer

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
+ 20% Flexible Benefits Package Are you an experienced Principal Engineer with a passion for building and operating large-scale distributed systems and database platforms? We're looking for a hands-on technical leader to help shape the future of our platform engineering capability. This is an opportunity … lead complex engineering initiatives, define technical strategy, and act as a subject matter expert across AWS infrastructure, distributed databases, Terraform and cloud-native platform services. You'll work closely with architects, engineers and senior stakeholders to design resilient, scalable and secure platform solutions while mentoring engineers and driving engineering ...

Back End Developer

Hiring Organisation
Infinity Quest
Location
City of London, London, United Kingdom
backend services supporting high-volume, mission-critical financial transactions. You will work within a modern cloud-native environment, building resilient microservices and event-driven systems that support secure, real-time transaction processing across a complex banking ecosystem. The role requires strong engineering fundamentals, deep Golang expertise, and experience operating … distributed systems at scale. Working closely with Architects, Product Owners, SRE, DevOps, and Platform Engineering teams, you will contribute to the end-to-end software development lifecycle while ensuring solutions meet the highest standards of performance, security, resilience, and observability. Key Responsibilities Software Engineering Design, develop, and maintain ...

Principal Software Engineer

Location
City Of London, England, United Kingdom
What you’ll do Own technical architecture and engineering direction Remain hands‐on with C#, .NET, React and TypeScript Build scalable APIs, microservices and distributed systems Use AI agents across the SDLC Apply Spec-Driven Development Turn requirements into technical specifications using AI Review and validate AI-generated … Azure What we’re looking for Principal, Staff, Lead or strong Senior Software Engineering experience Architecture and solution design experience APIs, microservices and distributed systems CI/CD, Docker, Kubernetes and Infrastructure‐as‐Code Genuine AI-native engineering experience You should be able to clearly explain ...

Principal Engineer I — Prepurchase Platform

Location
City Of London, England, United Kingdom
event discovery, real-time seat availability, and interactive venue experiences at massive scale, processing billions of API calls during peakon-sales. Our engineers build systems that must be fast, resilient, and available when it matters most. THE JOB As a Principal Engineer on the Prepurchase Platform team, you will … write code, build systems, and solve hard problems hands-on. This is a systems thinking role: you will reason carefully about distributed systemstradeoffs, understand why existing designs exist before proposing changes, and act on problems without waiting to be asked. You will lead platform modernization efforts, design ...

Python Technical Lead FinTech

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
products. This role blends hands-on engineering with technical leadership, mentoring, and strategic decision-making. Required Skills & Experience Python Expertise 7+ years building production systems with Python. Microservices Strong experience designing and scaling distributed microservice architectures. Cloud Platforms Deep knowledge of AWS/GCP/Azure services. Databases … Proficiency with PostgreSQL, Redis, MongoDB, or similar. Messaging Systems Experience with Kafka, RabbitMQ, or event-streaming platforms. CI/CD Strong understanding of automated testing, deployment pipelines, and observability. Leadership Proven ability to lead teams, influence stakeholders, and deliver complex projects. FinTech Domain Knowledge Experience in payments, trading, banking ...

Machine Learning Engineering Lead

Hiring Organisation
Hackajob Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Lead Are you passionate about designing and deploying intelligent machine learning solutions that drive business impact? Do you enjoy leading teams, building scalable ML systems, and turning complex data into innovative products and services? About the team: We are a software engineering team responsible for developing and supporting business … Engineering, supporting production AI/ML, LLM/RAG, and agentic workflow capabilities for legal content products. In addition to writing code on complex systems, this position provides technical direction on architecture, MLOps, responsible AI, legacy system integration, AWS-based delivery, and AI-assisted development practices. The position does ...

Senior Software Developer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£120000 - £150000/annum
strong C#/.NET engineer who enjoys solving complex technical problems and wants to have genuine influence over the architecture and direction of the systems they build. You will work on a combination of greenfield development and the continuous improvement of established platforms, building high-performance, reliable and scalable … significant software development projects from initial design through to production Contribute to and lead architectural and technical design decisions Design and develop scalable systems supporting automated trading, research and data-driven applications Work closely with quantitative researchers and traders to understand requirements and translate them into robust technical solutions ...

Senior Data Engineer

Location
City Of London, England, United Kingdom
Experience using dbt for data modelling and transformation Experience working with Apache Airflow or similar orchestration tooling Proven experience designing and building production systems on GCP and/or AWS Strong understanding of event-driven architectures and distributed systems Experience deploying and supporting batch and real-time … machine learning workloads Experience working with distributed processing technologies such as Spark or Apache Beam Strong understanding of data quality principles and engineering best practices Experience optimising database performance, troubleshooting issues and maintaining production data systems Ability to learn new technologies quickly and apply them pragmatically ...

Software Engineering Manager

Hiring Organisation
Halian Technology Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
build high-performing engineering teams. Experience working within cloud-based environments (AWS, Azure or GCP). Understanding of software architecture, system design, and scalable distributed systems. Nice to Have Experience within FinTech, Payments, Banking, Financial Services, or Regulated Industries . Knowledge of payment processing, payment gateways, acquiring, issuing, card ...

Site Reliability Engineer, Infrastructure - ThousandEyes

Location
City Of London, England, United Kingdom
ThousandEyes is deeply integrated across the Cisco technology portfolio, delivering AI-powered assurance insights within Cisco’s Networking, Security, Collaboration, and Observability portfolios. Our distributed Site Reliability Engineering team of approximately nine engineers owns the availability, latency, performance, efficiency, monitoring, emergency response, and capacity planning of the platform while … application development teams. We believe in operations, infrastructure, and everything as code, creating a collaborative and pragmatic environment where engineers can manage large-scale systems that receive hundreds of millions of messages per hour. Your Impact Design andoperate large-scale, highly available distributed systems that allow ...

Lead Site Reliability Engineer

Location
Westminster, West End, United Kingdom
journey. You will play a pivotal role in shaping our next generation SRE patterns, reliability frameworks, observability strategy, and performance engineering capabilities across globally distributed systems. This role is ideal for an SRE specialist who thrives in fast paced front office environments, enjoys direct interaction with traders, and wants … asset classes (Equities, Fixed Income, FX) to understand workflows, pain points, and reliability priorities. Act as a trusted engineering partner to the desk, ensuring systems are stable, performant, and aligned with business needs. Support live trading environments, including incident response, root cause analysis, and post mortem leadership. Work ...

AI Engineer III - Agentic AI

Location
City of Westminster, England, United Kingdom
redefining the experiences our commercial customers and card members expect. Within Amex Technology, we are building platforms, products, and governance that enable agentic AI systems to operate responsibly and at scale across the enterprise. Our focus is on agentic AI development: designing intelligent, adaptive systems that can plan … reason, and act across complex workflows with appropriate levels of autonomy. These systems power autonomous workflows, decision support, and customer-facing experiences—while meeting the high standards for security, explainability, reliability, and compliance required in financial services. We partner closely with product, design, and business teams to deliver agentic ...

Senior AI Engineer II - Agentic AI

Location
City of Westminster, England, United Kingdom
redefining the experiences our commercial customers and card members expect. Within Amex Technology, we are building platforms, products, and governance that enable agentic AI systems to operate responsibly and at scale across the enterprise. Our focus is on agentic AI development: designing intelligent, adaptive systems that can plan … reason, and act across complex workflows with appropriate levels of autonomy. These systems power autonomous workflows, decision support, and customer-facing experiences-while meeting the high standards for security, explainability, reliability, and compliance required in financial services. We partner closely with product, design, and business teams to deliver agentic ...

Senior AWS Site Reliability Engineer

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum Bonus, Medical Care
anticipate user demands and drive innovation. Additionally, you'll take the lead in providing operational support and technical oversight for several large-scale distributed applications. How You'll Contribute: Monitor and interpret system and application metrics to fine-tune performance and troubleshoot issues effectively Collaborate closely with developers … structured release practices Engage in architectural discussions, manage platform operations, and contribute to capacity forecasting Design and implement automated solutions to build resilient, scalable systems Maintain a strong focus on delivering new features while ensuring stability and adherence to service level goals You'll Stand Out If You Have ...

Machine Learning Scientist III

Location
City of Westminster, England, United Kingdom
cloud-native infrastructure. Design and deploy scalable batch and real-time ML pipelines supporting customer-facing applications. Develop and operationalise LLM applications, RAG systems, and Generative AI capabilities for content understanding, summarisation, classification, and recommendation use cases. Build evaluation frameworks and observability solutions to monitor model quality, reliability, latency … offs between model quality, scalability, latency, and infrastructure cost when developing AI-powered products. Partner with engineering teams to deploy and scale machine learning systems in production. Produce clear technical documentation and share expertise through mentorship, design reviews, and technical leadership. Experience and Qualifications Bachelor's degree in Computer ...

Senior Application Security Specialist

Hiring Organisation
Secure Source
Location
City of London, London, United Kingdom
Development Practice and enabling a consistent ‘shift-left’ approach. The role is accountable for advancing application security capability, leading security reviews on higher-risk systems, and ensuring secure development practices are adopted across engineering teams. The post holder will act as a technical authority on application security, helping reduce … vulnerability risk and improve security outcomes across both internal IT systems and customer-facing solutions. Strong knowledge of application security principles and practices Experience with SAST, DAST and software composition analysis tools Knowledge of secure coding practices across languages such as Java, C, C++ Experience with CI/ ...

Senior Machine Learning Engineer

Location
City Of London, England, United Kingdom
when they imagine cutting-edge AI work. That's exactly why this role is interesting. CFC's Data & AI unit is building production agentic systems that automate complex underwriting decisions - not chatbots, not copilots bolted onto legacy workflows, but autonomous multi-step AI agents that reason over unstructured data … goal is to multiply engineering delivery by an order of magnitude: not by cutting corners or generating throwaway code, but by designing robust systems and processes that let agents handle well-defined work while engineers focus on architecture, design, and the problems that actually require human judgment. This ...

CRB Developer, Global Markets

Location
City of Westminster, England, United Kingdom
ability to write clean, maintainable, production-quality code. Strong experience working in Linux/Unix environments. Experience building, deploying, and supporting production software systems, including CI/CD, automation, monitoring, and DevOps practices. Strong communication and collaboration skills, with the ability to work effectively across business and technology teams. … office applications, automation frameworks, or other business-critical software. Experience building AI, machine learning, or LLM-based solutions. Familiarity with financial markets, electronic trading systems, Equities, ETFs, Delta One products, distributed systems, or KDB+/q. LI-GB At UBS, we know that it's our people ...

Software Engineer III - Data Analytics Platform

Location
Westminster, West End, United Kingdom
testing. Comfort working in one or more of Go, Python, or TypeScript, with the ability to ramp up quickly on the others. Interest in distributed systems and system design, even if you haven't built large systems yet. Curiosity about LLMs and AI model architecture, with willingness … peers on safe and effective usage within team practices. Preferred qualifications, capabilities, and skills Experience with performance profiling tools such as pprof, flamegraphs, or distributed tracing systems. Familiarity with containers and orchestration (Docker, Kubernetes) and service-to-service networking. Understanding of inference concepts: batching, streaming tokens, GPU memory constraints ...

Principal Engineer

Location
Westminster, West End, United Kingdom
JavaScript, and Angular or comparable modern front-end technologies Experience building backend services using Node.js or similar technologies Proven experience designing and developing complex distributed systems Deep understanding of software architecture, design patterns, and engineering best practices Experience working with cloud platforms such as Azure or AWS Experience ...

Senior Vice President, Full-Stack Engineer Opportunities

Location
Westminster, West End, United Kingdom
integrations aligned to BNYs principles and pillars. To be successful in this role, were seeking the following: Proven leadership of software engineering teams building distributed systems and microservices in agile environments such as Scrum or Kanban. Hands-on AI development using modern tools and IDEs (e.g., Windsurf ...

Software Engineer, Trading - Cumberland Systematic

Location
City Of London, England, United Kingdom
develop the full stack needed to enable a global trading operation with high availability requirements. You will be expected to design and develop trading systems, market data connectivity, execution algorithms, research infrastructure, monitoring and observability tooling, and integrations with DRW’s core services. The team’s existing systems … with researchers, traders, and other software engineers Provide on-call support as needed Qualifications 5+ years of professional C++ experience Built complex, mission-critical systems in modern C++ that are maintainable and safely refactorable A deep understanding of concurrency concepts and their applications in C++ and Python A working ...

Software Engineer - Cloud Compute Platform

Location
City of Westminster, England, United Kingdom
tooling Workload scheduling, disruption management, and rolling updates What You Will Do: Design and implement services, APIs, and Kubernetes controllers using Go. Contribute to systems that manage workload placement, lifecycle, and state across Kubernetes clusters. Work with product managers and engineers to understand requirements and deliver reliable solutions. Participate … similar programming language, with the ability to learn Go. Familiarity with Kubernetes concepts such as deployments, services, controllers, or operators. Understanding of distributed systems, APIs, networking, or cloud infrastructure. Experience with software testing, debugging, monitoring, and incident resolution. Ability to break down moderately complex problems and deliver solutions ...