51 to 75 of 1,112 Distributed Systems Jobs in the UK

Senior Software Engineer (Agentic Search) - Crawler

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
verified real-world data. Search is the foundation that makes this possible. We are building an agent-native search platform designed specifically for AI systems rather than human users. Our product provides programmatic, low-latency, and observable search APIs that AI agents use to retrieve, filter, and reason over … content acquisition and crawling infrastructure of a novel search engine tailored for agentic AI consumption. In this role, you will focus on building systems that discover, fetch, and continuously refresh content from the open web and other large-scale data sources. You will design distributed crawling, scheduling ...

Senior Backend Engineer (Python)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
engineering role. We're looking for a Senior Backend Engineer who thrives on solving complex technical challenges at scale. You'll build the backend systems that enable AI applications to process highly sensitive financial data securely, reliably, and at enterprise scale. If your experience is primarily focused on small … applications, basic CRUD APIs, or you haven't built distributed backend systems in production, this role is unlikely to be the right fit. We're looking for engineers who enjoy designing scalable architecture, optimizing performance, and building software that operates under demanding security and reliability requirements. The Opportunity ...

Senior Software Engineer - Customer Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
smarter, faster, and with greater creativity. For some, this involves tinkering and remaining open to emerging tools; for others, it means architecting entirely new systems with AI at the core. We will be transparent about expectations for every role and provide the tools and support needed … what's actually blocking them, then decide whether the right fix is a patch, a tool, or a process change Instrument and monitor the systems customers depend on so recurring issues get surfaced and fixed before they pile up - and so you can spot chances to reach ...

Senior Software Engineer - Customer Engineering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
smarter, faster, and with greater creativity. For some, this involves tinkering and remaining open to emerging tools; for others, it means architecting entirely new systems with AI at the core. We will be transparent about expectations for every role and provide the tools and support needed … what's actually blocking them, then decide whether the right fix is a patch, a tool, or a process change Instrument and monitor the systems customers depend on so recurring issues get surfaced and fixed before they pile up — and so you can spot chances to reach ...

Senior Python Developer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
liquidity providers and real-time market data. You will build reliable, low-latency services that collect, process and distribute data from external platforms, including systems that may not provide stable or conventional APIs. This position offers an opportunity for an experienced backend engineer who enjoys technically challenging work involving … scraping, reverse engineering, real-time data, imperfect third-party integrations and production systems where speed, correctness and reliability matter. You will work within a small, highly capable engineering team and take ownership of services with direct commercial impact. Responsibilities Building and maintaining high-performance web scraping and data collection ...

Senior Platform SRE

Hiring Organisation
Appcast
Location
Remote, UK
team, owning pieces of the reliability platform that hundreds of engineers depend on. You will work at the intersection of software engineering, observability, and systems reliability, turning reliability from a reactive concern into a proactive engineering discipline. You will partner with Platform Engineering, product teams, and Reliability Champions … mitigate, understand, and prevent a repeat. What you'll doBuild and own the reliability platform Implement comprehensive monitoring and observability using OpenTelemetry and distributed tracing. Maintain SLO, error budgets and burn-rate tracking Establish and maintain 24/7 operational readiness including automated deployments, blue/green releases ...

Senior Java/Kotlin Software Engineer - London

Hiring Organisation
Appcast
Location
London, UK
Instagram @zopalifeThe engineering challengeOur Software Engineers don't just write code, they solve real financial problems for millions of customers. You'll work on distributed systems processing thousands of transactions daily, build resilient services that handle people's money, and create experiences that make traditionally complex financial products … codeAn advocate of test-driven development or, even better, behaviour-driven development. A strong commitment to quality is essentialYou've worked on large scale distributed software systems that have proven scalability and complex topologiesEnjoy talking to key stakeholders and understand and show passion for the business objectives ...

Principal Software Engineer (Authentication & Access)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Overview One Identity's OneLogin is seeking a Principal Software Engineer to lead the architecture, correctness, and evolution of authentication and access systems across our platform. These systems are among the most security‐critical and failure‐sensitive areas of the product and require deep expertise in identity protocols … standards, guiding implementation, and resolving systemic issues across authentication flows, authorization models, and session behavior. You will work across teams to ensure that authentication systems are secure, reliable, and consistent, while evolving legacy implementations toward modern, scalable designs. While deeply focused on authentication and access, you will contribute broadly ...

Senior Backend Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
within a major cloud provider (AWS preferred) Has designed and coded significant backend features (Golang preferred) Has built CI/CD pipelines for production systems Has experience architecting distributed systems Has experience supporting distributed systems in production Has experience communicating technical concepts to non‐technical ...

Software Development Engineer, Amazon

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
DESCRIPTION Amazon Selection and Catalog Systems (ASCS) builds the systems that host and run the world’s largest e-Commerce products catalog. Our high scale distributed systems process hundreds of millions of updates on the billions of products to power the online buying experience for hundreds … problems and never takes no for an answer to join our growing team in London. Central to Amazon's retail business, our high scale distributed systems hold the largest product catalog in the world, and manage data ingestion and processing from millions of external data contributors, Amazon ...

Senior Software Engineer - DataHub Experience & Control Plane London, GBR Posted today

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
data, and build data‐driven applications. What’s the role? This is a senior full‐stack engineering role at the intersection of product experience, distributed systems, developer platforms, data infrastructure, and AI‐ready metadata. You will help design and build the next generation of DataHub: the interfaces, backend … services, and control‐plane systems that allow Bloomberg engineers to move from intent to outcome — from finding the right dataset to understanding it, accessing it, provisioning infrastructure around it, querying it, publishing it, and operating it safely in production. This is not only a frontend role ...

Software Engineer - Senior

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
technical specifications Design, build, and operate production generative AI applications such as copilots, assistants, knowledge-search experiences, and agentic workflows, as reliable, production-grade systems rather than demos Architect and implement end-to-end retrieval-augmented generation pipelines, including parsing, ingestion, chunking strategy, embeddings, vector storage, retrieval, and prompt … verifiable and regressions are caught before production Take end-to-end ownership from discovery and design through build, rollout, and operational excellence Instrument systems with the observability, cost tracking, and audit trails needed to know when they degrade Apply FinOps and cost-optimization practices to AI workloads, tracking ...

Engineering Manager, Payments & Fraud Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
revenue they generate, with direct, measurable impact on self‐serve ARR and fraud loss metrics. Your responsibilities People Leadership: Lead, mentor, and grow a distributed team of engineers across varying seniority levels. You will own their well‐being and development through regular 1:1s, continuous feedback, performance reviews … payment gateway integrations, checkout flows, or billing infrastructure at production scale. This is non‐negotiable given the team’s core technical estate. Fraud & trust systems familiarity: Sufficient depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi‐layered fraud stack. ...

Senior Software Engineer, Event Streaming Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Senior Software Engineer, Event Streaming Systems Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions … team, what drives us, how we work, and what you can expect. What You’ll Be Doing You’ll be joining the Event Streaming Systems team within the broader Storage organisation. The team builds and operates highly reliable, scalable and efficient event streaming infrastructure, including Kafka, Event Streaming abstractions ...

Senior Software Engineer - Market Data

Hiring Organisation
Jobleads-UK
Location
United Kingdom
looking for a Senior Software Engineer - Market Data based in United Kingdom. This role offers the opportunity to build and scale high-performance systems that power modern financial markets. You will contribute to the architecture and evolution of market data platforms supporting millions of users worldwide. The position focuses … designing resilient, low-latency backend services and developer-first APIs for financial data products. You will work on complex engineering challenges involving distributed systems, cloud infrastructure, and real-time data processing. As part of a globally distributed engineering environment, you will collaborate with experienced developers, traders ...

Software Engineering Software Engineer - Confluent Cloud Infrastructure & Platform Professional[...]

Hiring Organisation
Jobleads-UK
Location
Hursley, England, United Kingdom
customer experience to scaling internal operations. You are not confined to the status quo and you leverage your expertise in Cloud-native, large-scale distributed systems to help take our platform to the next level. You worry about key operational aspects (availability, reliability, performance, monitoring, emergency response, capacity … process and operational improvements Required education None Preferred education None Required technical and professional expertise Demonstrated experience designing, building, scaling and supporting backend systems in production with a solid grasp on good software engineering practices such as code reviews, deep focus on quality, and documentation. Strong programming and algorithmic ...

Lead AI Engineer (Agentic Systems)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
Senior AI Engineer (Agentic Systems) UK Based Role At StarCompliance, we build software that supports critical compliance needs for global clients. We are now embedding AI as a core capability across the entire software development lifecycle. We are seeking a Senior AI Engineer to lead the practical adoption … production‐safe Skills and Experience Core Engineering Strong software engineering background (ideally C#/.NET) in cloud‐based SaaS environments Experience building and operating distributed systems Strong understanding of APIs, systems design, and modern development practices Experience with CI/CD pipelines (Azure DevOps preferred) AI & Agentic ...

Engineering Manager | Payments, Abuse, and Conversion

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
revenue they generate, with direct, measurable impact on self-serve ARR and fraud loss metrics. Your responsibilities People Leadership: Lead, mentor, and grow a distributed team of engineers across varying seniority levels. You will own their well-being and development through regular 1:1s, continuous feedback, performance reviews … payment gateway integrations, checkout flows, or billing infrastructure at production scale. This is non-negotiable given the team's core technical estate. Fraud & trust systems familiarity: Sufficient depth in fraud prevention, abuse detection, rate limiting, or bot protection to guide architectural decisions across a complex, multi-layered fraud stack. ...

Staff Software Engineer (Reliability & Platform)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
metrics, and alerting — for faster diagnosis and resolution Design and improve debugging workflows, runbooks, and internal tooling for engineers Reduce operational burden by making systems easier to understand, operate, and troubleshoot Partner closely with product teams to feed production learnings back into design and development Reduce support and incident … load by addressing root causes and improving system design, not just resolving individual issues Ideal Experience: Strong production debugging experience in distributed systems Experience troubleshooting complex, customer-impacting issues under real-world conditions Deep familiarity with observability tools (Datadog or similar — logs, metrics, APM, tracing) Experience improving operational ...

Senior Java Engineer

Hiring Organisation
hireful
Location
London, United Kingdom
Employment Type
Permanent
Salary
£110000 - £120000/annum ~£120,000 Basic + Extensive benefi
observability and monitoring space, is looking for a Senior Java Engineer to join their Platform Team in London . You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale so it can power a range of analytics … value technical coding ability, ownership & delivery - no client work, no consultancy, no "Project management" of software - just pure, coding ability with Java, Data & complex, distributed global software systems required! Location: London (Old Street/Shoreditch). Salary: £120,000 to £125,000 basic, plus an extensive benefits package. ...

Senior Software Engineer

Hiring Organisation
Jobleads-UK
Location
Cardiff, Wales, United Kingdom
work within a cross-functional product environment, collaborating closely with Mobile Engineers, Product, Platform Engineering, and Security teams to build reliable, scalable, and maintainable systems across AWS and GCP. This role requires deep technical expertise across backend development, cloud-native architectures, and modern software engineering practices. We're also … Technical Ownership & Architecture Own and evolve backend services and platform architecture, ensuring scalability, resilience, security, and maintainability. Design and deliver high-performance APIs and distributed systems that power customer-facing mobile applications. Make pragmatic technical decisions, balancing customer outcomes, delivery speed, operational excellence, and long-term sustainability. Drive ...

Head of Markets Finance Desk Technology (Director)

Hiring Organisation
Appcast
Location
London, UK
booking, settlements, inventory/position management, collateral optimization, liquidity and risk management. Architecture & Design: Own the architecture and design of enterprise applications, focusing on distributed systems, and scalable solutions that adapt to changing market conditions. Ensure adherence to technical design, application development standards, and quality processes. Project & Product … operations stakeholders, and other partner technology teams to gather requirements, manage expectations, and deliver effective solutions. Identify and mitigate potential risks related to systems, processes, and regulatory compliance. System Optimization: Identify system bottlenecks and deficiencies, devising and implementing robust solutions to enhance resiliency, performance, and scalability. Provide technical consultation ...

Head of Markets Finance Desk Technology (Director)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
booking, settlements, inventory/position management, collateral optimization, liquidity and risk management. Architecture & Design: Own the architecture and design of enterprise applications, focusing on distributed systems, and scalable solutions that adapt to changing market conditions. Ensure adherence to technical design, application development standards, and quality processes. Project & Product … operations stakeholders, and other partner technology teams to gather requirements, manage expectations, and deliver effective solutions. Identify and mitigate potential risks related to systems, processes, and regulatory compliance. System Optimization: Identify system bottlenecks and deficiencies, devising and implementing robust solutions to enhance resiliency, performance, and scalability. Provide technical consultation ...

Software Engineer – High-Performance Computing (HPC) / Quant Technology

Hiring Organisation
IT Graduate Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £80,000 per annum
highly specialised technology business that solves some of the most technically demanding problems in high-performance computing, quantitative technology and large-scale software systems . Their engineers work on complex compute-intensive applications used within financial services and other performance-critical environments, covering areas such as large-scale numerical … workloads, risk analytics, simulation, CPU/GPU computing and low-latency systems . They are now looking for a talented Software Engineer with an interest in High-Performance Computing (HPC) to join their growing London team. This isn't a role where you'll spend years working ...

Senior Software Engineer, Agents

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
company is the company behind PyTorch Lightning. Founded in 2019, we build an end-to-end platform for developing, training, and deploying AI systems—designed to take ideas from research to production with less friction. Through our merger with Voltage Park, a neocloud and AI Factory, the company combines … challenge ourselves to grow, and focus on the work that matters most. Think Long-Term: We design for what’s next. We create scalable systems, simplify complexity, and use AI and automation to amplify our impact. What We’re Looking For The Agents team at the company is building ...