276 to 300 of 1,812 Distributed Systems Jobs in the UK

Software Engineer (Backend)

Location
Greater London, England, United Kingdom
hundreds. Why Lorum Joining Lorum means contributing to one of the most ambitious clearing infrastructure projects in global finance. You will help shape settlement systems that perform under real regulatory standards and institutional volumes. You will build for regulated institutions that rely on precision, predictable timelines, and regulatory integrity. … team and help build the foundational infrastructure. You’ll be joining a small, cross-functional team focused on shipping real value quickly and building systems that are observable, reliable, and designed to evolve. This role is ideal for someone who enjoys working in fast-moving environments, thrives in ambiguity ...

Senior Full Stack/Native Cloud Engineer (Vice President)

Hiring Organisation
Jefferies Financial Group
Location
London, UK
Employment Type
Full-time
deep technical expertise, end-to-end delivery ownership, and engineering leadership. The successful candidate will work closely with business stakeholders, product managers, and globally distributed technology teams to build resilient, high-performance platforms and user-facing solutions that support critical front-office workflows. This role is well suited … engineer who is comfortable operating across the full technology stack, from backend services and distributed data architecture through to responsive user interfaces, production support, and engineering best practice. Key ResponsibilitiesLead the design, development, and delivery of backend services and platform components using Java 8+/Spring Boot and Python ...

HPC Systems Engineer

Location
Greater London, England, United Kingdom
industries, and partner with leading global research organizations and universities to solve problems. Our global High Performance Computing Team is looking to add a Systems Engineer in our London office. The scale of our computing environments provides unique challenges in providing good performance and reliability. Several systems including … individual, highly skilled in the details and nuances of managing Linux environments with a strong software development background necessary to support uniquely customized systems at scale. What You'll Do: Design, implement, maintain, and support high performance compute and storage systems Implement and support performance monitoring and fault ...

Java Engineer with AI

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
with AI expertise to design, develop, and deploy intelligent, scalable applications. You will work at the intersection of backend engineering and artificial intelligence, building systems that integrate machine learning models, data pipelines, and cloud-native services. This role is ideal for someone passionate about clean architecture, performance optimization … world business challenges. Requirements Key Responsibilities Design, develop, and maintain high-performance Java-based applications Integrate AI/ML models into production-grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability ...

Senior Software Engineer - Core Systems

Location
Greater London, England, United Kingdom
ABOUT THE ROLE We're building the core banking capabilities that power everything at Onmo - the systems that hold accounts, move money, calculate interest and generate statements. The Core Systems team owns these capabilities end to end, along with the shared services the rest of engineering builds on. … help build new core systems from the ground up as we grow and pursue a UK banking licence, evolve the services every team depends on, and set patterns that get adopted across engineering. Your work reaches customers through every journey at once. TECH STACK Backend: Node.js/TypeScript ...

Senior Systems Reliability Engineer (SRE), Edge

Location
Greater London, England, United Kingdom
Senior Systems Reliability Engineer (SRE), Edge Cloudflare ·United States, London, United Kingdom Job Description About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties … problems to keep the Internet moving forward, you’ll fit right in. Available Locations: London, UK About the Role We are looking for talented Systems Reliability Engineers to build and operate our Edge platform running in more than 320 cities in over 120 countries. Our SREs come from diverse ...

Java Engineer with AI

Hiring Organisation
Solirius Consulting
Location
London, UK
Employment Type
Full-time
them into effective outcomes. RequirementsKey Responsibilities Design, develop, and maintain high-performance Java-based applications Integrate AI/ML models into production-grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability … architecture decisions and technical roadmaps Design, develop, and maintain high-performance Java-based applications Integrate AI/ML models into production-grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability ...

Java Engineer with AI

Location
Greater London, England, United Kingdom
them into effective outcomes. Key Responsibilities Design, develop, and maintain high-performance Java-based applications Integrate AI/ML models into production-grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability … architecture decisions and technical roadmaps Design, develop, and maintain high-performance Java-based applications Integrate AI/ML models into production-grade backend systems Build RESTful APIs and microservices using modern Java frameworks Collaborate with data scientists to deploy and scale machine learning solutions Optimise system performance, scalability ...

Lead Software Engineer - Public Cloud, Foundational Infra Platforms

Location
Glasgow, Scotland, United Kingdom
Google Cloud Hands-on experience with Terraform for infrastructure as code, applied from a software engineering perspective Experience designing, developing, and maintaining production software systems consumed by other engineering teams Experience owning technical design decisions and mentoring other engineers Knowledge of cloud-native architecture, distributed systems … Preferred qualifications, capabilities, and skills Experience engineering and supporting high-volume production platforms, including release engineering, continuous delivery, and automated testing strategy Background in systems design and systems engineering at platform level, ideally including the full operational lifecycle — standing a platform up, running it, and recovering it Depth ...

Backend Engineer - Account Sharing

Location
Greater London, England, United Kingdom
allow families, couples, flatmates, and friends across different countries to manage money together in ways that existing financial products often cannot support today. The systems and experiences you build will need to scale globally, support millions of customers, and navigate the complexities of international compliance, regulation, and financial infrastructure. … while helping Wise expand into a strategically important area of consumer finance. What will you be working on? Building international joint accounts for globally distributed users Expanding Wise kid accounts into additional markets Creating shared finance experiences that work across borders Designing scalable backend systems for high-growth ...

Staff Infrastructure Engineer, Cluster Infrastructure

Hiring Organisation
Humanloop
Location
London, UK
Employment Type
Full-time
business leaders working together to build beneficial AI systems. About the roleAnthropic's Infrastructure organization is foundational to our mission of developing AI systems that are reliable, interpretable, and steerable. The systems we build determine how quickly we can train new models, how reliably we can run safety … clusters at Anthropic. We build agent-driven automation for cluster provisioning and lifecycle management across all major cloud providers and our own datacenters. Our systems stand up clusters that are interconnected with high bandwidth, secure-by-default, and able to automatically drain and recover in response to failure. ...

Platform Engineer (10x Openings)

Location
Greater London, England, United Kingdom
What You Bring 3 to 5 years of software engineering experience, with a meaningful portion spent on infrastructure or platform systems. Strong backend or systems programming experience in a production environment. Our working languages are Python, Go, and Rust; we welcome strong engineers from other compiled or object‐oriented … internals: the control loop model, CRDs, controllers and operators, and reliable reconciliation logic. Comfortable working close to the infrastructure layer: Linux, networking fundamentals, and distributed systems behavior. Experience designing, building, and versioning production‐grade APIs or service interfaces that other teams depend on, including disciplined handling of breaking ...

Software Engineer, GPU Infrastructure- ChatGPT Engineering

Location
Greater London, England, United Kingdom
fleet continues to grow, we're investing in the infrastructure that operates it. Our team builds the tooling, automation, and intelligent systems that make GPU infrastructure scalable, observable, and increasingly autonomous. We work across production engineering, distributed systems, capacity management, and AI-powered operational tooling to help … Role We're looking for a Software Engineer with deep experience operating large-scale GPU or compute infrastructure. You'll design and build the systems that manage GPU clusters at scale—from fleet health and capacity planning to operational automation and intelligent agents that reduce manual intervention. ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
analytics and visual storytelling. Role Details We are seeking a Senior Software Engineer with deep expertise in Java/Kotlin, cloud-native development, and distributed systems to design, build, and support scalable production banking and financial services systems. The ideal candidate will combine strong technical leadership with hands … contributing across the full software development lifecycle. Domain Experience Banking, payments, fintech, or financial services experience. Exposure to mission-critical, high-scale production systems, and payment network integrations. Experience building customer-facing platforms and transaction processing solutions. Understanding of security, compliance, resiliency, and operational risk requirements. Roles and Responsibilities ...

Systems Engineer, Database Services (AWS)

Location
Greater London, England, United Kingdom
motivated people who are driven by learning and innovation. The AWS Database Services (DBS) team helps to support and operate some of the largest distributed database and analytics services in the world. From DynamoDB to OpenSearch, Glue and EMR, the DBS team manage many of the most heavily used … world-class team in a dynamic environment that has the entrepreneurial feel of a start-up. This is an opportunity to operate and engineer systems on a massive scale and to gain world class experience in cloud computing. You'll be surrounded by people who are passionate about their ...

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 ...

Software Development Engineer, Data Center Builder Tools

Hiring Organisation
Amazon
Location
London, UK
Employment Type
Full-time
innovative, self-directed Software Development Engineer to build the next generation of real-time middleware and runtime software that powers industrial control systems across AWS Data Centers worldwide. Contribute to Amazon's vision of developing the safest, most secure, reliable, and efficient data centers on Earth. As a Software … unified, real-time data plane that lets control applications, device drivers, and cloud services exchange data reliably on industrial computing hardware. This is deep systems work: you will shape the runtime, the communication layer, and the protocol integrations that everything else in the platform is built on. In this ...

Senior Backend Engineer

Location
Greater London, England, United Kingdom
automation across Search, Social, Programmatic, Commerce, and Measurement. Backend engineering is foundational across all OneSuite — providing the APIs, integration layers, orchestration runtimes, and backend systems that power every charter, from Agent Studio to AOE, DFP, Channels, and SRE. About the Role We are seeking a Senior Backend Engineer (Individual … Contributor) to lead the design, development, and evolution of backend systems across OneSuite. This is a hands‐on engineering role — you will write production‐grade code, solve complex distributed systems problems, shape backend patterns, and guide other engineers through technical influence (not supervision). As a Senior ...

Software Developer | Capital Markets

Location
Greater London, England, United Kingdom
help build new solutions in support of strategic business initiatives, andinitiatives and mature our existing software and efficiently migrate and re-platform legacy systems to the cloud, using cloud native design patterns. Working closely with the enterprise architecture stream and platform engineering team to ensure alignment to organisational technology … assist the wider scrum team in taking accountability for theirs Work with platform engineering to automate build and deploy of existing and new systems Support the strategic goals of Capital Markets development; greenfield initiatives, replatforming and consolidating legacy systems, and adopting an automation-first approach to delivery ...

Senior Software Engineer - Backend

Hiring Organisation
Fitch Ratings
Location
London, UK
Employment Type
Full-time
cloud-native platforms and data-driven products. Provide hands-on technical leadership for the design, development, and delivery of modern backend services, APIs, and distributed systems. Drive architecture decisions, establish engineering standards, and champion best practices for scalability, reliability, security, and maintainability. Guide engineering teams in building and integrating … software engineering experience with at least 3–5 years leading teams of highly technical engineers. Demonstrated experience delivering enterprise-scale software platforms, APIs, and distributed systems. Strong proficiency in C++, Java (Spring Boot), and/or Python (FastAPI or similar), with the ability to guide engineering teams on architecture ...

c# developer financial systems

Location
Greater London, England, United Kingdom
Описание Talan is a global IT consulting company. Its team develops financial systems, including a distributed real-time P&L and risk analytics platform for Fixed Income Rates and FX trading desks worldwide. Задачи Develop and maintain scalable .NET/C# services within a distributed streaming architecture … Build and support real-time data processing systems for P&L and risk analytics; Work on out-of-process services, system integrations, and data materialisation layers; Drive Agile best practices, including test-driven development (TDD) and automation; Collaborate with global teams across EMEA, NY, and APAC; Take ownership ...

Technical Lead, Lending & Savings

Hiring Organisation
Blockchain
Location
London, UK
Employment Type
Full-time
execution. WHAT YOU WILL DOTechnical LeadershipLead the technical direction and architecture of the Lending & Savings platform. Design and build scalable, secure, and highly available distributed systems. Make key architectural decisions balancing scalability, performance, security, and maintainability. Remain hands-on, contributing production-quality code and reviewing critical changes. Drive engineering … maintaining high standards for quality and security. Champion continuous improvement across architecture, tooling, and engineering processes. WHAT YOU WILL NEEDTechnical ExperienceStrong experience building backend systems using Kotlin or Java. Experience designing distributed, event-driven systems using Kafka or similar messaging technologies. Strong knowledge of PostgreSQL and relational ...

Senior Architect AI

Location
Greater London, England, United Kingdom
years of experience in software architecture or technical lead roles with 4-5 years focused on AI/ML platforms and data-intensive systems Proven experience designing end-to-end architectures or processes for AI/ML systems in production environments supporting large user bases Understanding … MLOps frameworks and practices Understanding of the use of Waterfall vs Agile practices including use of Kanban, SAFE, etc Deep understanding of telecommunications systems and integration patterns with OSS/BSS, customer platforms, and network management systems Demonstrated ability to work effectively with both technical teams and business ...

Senior AI Engineer

Hiring Organisation
MarkIT Placements
Location
Didcot, Oxfordshire, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
From £700 to £900 per day
experience IR35: Outside IR35 Start Date: Immediate About the Role We are working with a fast-growing UK frontier technology company developing advanced AI systems for organisations operating in complex, high-stakes environments. The business is looking for a Senior Applied AI Engineer to take genuine technical ownership … production-grade agentic AI systems. This is a builder's role rather than an integration role . You will design and implement sophisticated AI systems from the ground up, make architecture-level decisions, write production-quality software and own features through to deployment. The focus is on turning rapidly ...

GCP Data Engineer

Hiring Organisation
Teksystems
Location
Sheffield, South Yorkshire, United Kingdom
Employment Type
Contract
Contract Rate
£400/day
based trading and post-trade platforms. You will work within the Reference Data platform team, responsible for a critical integration layer that connects multiple systems across the trading ecosystem. The position centres on modernising platform architecture, improving scalability, and enabling robust data integration across domains such as Synthetic Trading … environments. Enable and support microservices architecture deployment using containerisation technologies such as Docker and Kubernetes/EKS. Implement scalable, highly available, and fault-tolerant systems that align with enterprise architecture standards. Collaborate closely with application developers, traders, and business stakeholders to deliver secure, reliable, and high-performance cloud solutions. ...