151 to 175 of 4,058 Software Engineering Jobs in London

Senior Software Engineer – Ultra Low Latency Risk Engine Developer Overview Citi Equities Technology | Equities Electronic Execution (Electronic Trading) Citi's Equities Technology organization is seeking a Senior Software Engineer – Ultra Low Latency Risk Engine Lead Developer to join the Equities Electronic Execution (Electronic Trading) technology team. This role … execution, and position components. Apply deep expertise in JVM performance tuning, memory management, garbage collection avoidance, and/or native (C++/Rust) performance engineering to eliminate latency outliers ("jitter") in the risk path. Perform system-level performance tuning including NUMA-aware application design and memory allocation, CPU core ...

seeking a seasoned, hands-on Software Engineer who consistently builds robust, scalable, and secure solutions with experience of the Seismic platform. The ideal candidate combines strong technical craftsmanship with excellent engineering standards, an eye for detail, and a continuous improvement mindset. Exposure to the financial services industry … important. The candidate should translate business requirements into high-quality technical solutions, apply best-practice engineering and DevOps disciplines, and show enthusiasm for innovation. They should be comfortable owning technical development from design through to production support. We are seeking an experienced with a proven track record of driving ...

build directly shape how trustworthy and easy Homeprotect feels at the moments that matter most to customers. We're looking for a Senior Software Engineer to lead technical delivery within this team and raise the capability of the engineers around them. You'll take ownership of complex, customer-facing … claim is made, and use that understanding to help shape what the team builds. Partner with the domain's Product Manager and Engineering Manager to spot opportunities and risks early, before they turn into problems. Bring a domain perspective into technical decisions, and a technical perspective into product decisions ...

have the flexibility to work from our London office or remotely from elsewhere within the UK. About the role As a Lead Software Engineer, you will spearhead our backend and edge/IoT engineering for high-stakes Defence projects, implementing patterns and practices that are both scalable … future-proof. You will bridge the gap between proof-of-concept and robust systems, raising the engineering bar across your team and the wider business unit. Acting as both a technical authority and a mentor, you’ll work alongside Machine Learning Engineers and Data Scientists to deliver production-grade ...

Senior Software Engineer - Front End - Studio (Core) London, UK About Clear Street Clear Street’s mission is to give every sophisticated investor access to every asset, in every market, through a unified platform built for speed, transparency and scale. We give our clients the technology, tools, and service once … native, end-to-end capital markets platform powers investor growth today and is transforming how they can interact with markets tomorrow. As a Senior Software Engineer on Clear Street’s Payments team, you’ll play a key role in scaling and modernising our rapidly evolving global payments infrastructure. ...

institutions who scrutinise how we run our own business as closely as they scrutinise our product. The role You'll join one of our engineering teams to build and support our next-generation FMI for cross-border liquidity movement, helping us revolutionise how wholesale liquidity moves around the world. … observable to the standard critical financial market infrastructure demands Translate external technical documentation and requirements, such as partner and payment-platform specs, into robust engineering solutions Deliver rapid, iterative change that adds value without compromising strategic objectives Contribute to architectural decisions with Lead and Principal Engineers, in line with ...

Summary We are seeking a skilled and motivated Senior Software Engineer to join our dynamic team at CWAN. The role joins our Beacon Core Engineering team. The Core team develops large part of Beacon Cloud, just above the Platform abstraction. It deals with the developer tools (SDLC) that … this role, you will be responsible for designing, building, deploying, and maintaining high-quality code while collaborating with cross-functional teams to enhance our software offerings. This position is ideal for an engineer who is driven by client satisfaction and has a strong commitment to continuous learning and improvement. ...

TEAM Join an innovative, tight-knit team where your growth matters. You will collaborate across the BBC to shape our future observability roadmap, engineering critical high-scale services using AWS. This role offers total freedom to pitch ideas, innovate at a massive scale, and define our future enterprise monitoring … Architect and scale robust, highly available, and user-focused infrastructure using cloud services and automation as well as lead the design and development of software that meets complex product and business needs which includes integrating monitoring and support tools. Be able to think out of the box and proactively ...

Senior Software Engineer - Java Order Management System (OMS) - Trading Platform So, who are we? IG Group is a FTSE 100 fintech operating across five continents, serving over 1.4m customers and handling billions of dollars in transactions - built on scale, trust, and proof. We didn't pivot to innovation … testing, tooling and observability. Translate between trading language and system behaviour - in both directions - when working with traders, dealers, quants and business stakeholders. Building software with AI: Use AI coding assistants as part of your everyday toolkit - scaffolding, refactoring, test generation, and finding your way around unfamiliar code. Apply ...

continuous improvements. Continuously learn and apply new technologies and techniques to improve back-end infrastructure and processes. Requirements: A degree in Computer Science, Engineering, or a related field (or equivalent practical experience). 3-5 years of experience in back-end development or related field, with a focus ...

exciting), so we are looking for people who enjoy this challenge, and want to help others thrive too. About the role Are you a Software Engineer that wants to actually see the real-world impact from what you help to create? Our mission is simple! We believe … apply for roles with us. Have we caught your interest? Please read on... What does the job entail? We primarily write and deliver custom software for the public sector. We work across central and local government, as well as in health, and our past lies in the technology startup ...

Loan IQ with upstream and downstream platforms. You will leverage modern cloud-native technologies, AI-assisted development tools, and Agentic AI practices to improve software quality, scalability, and delivery velocity.A key expectation of this role is hands-on experience building AI agents and intelligent engineering solutions that automate … enhance Software Development Lifecycle (SDLC) processes, improving developer productivity and accelerating delivery outcomes. Responsibilities Design and develop REST APIs, event-driven integrations, and messaging interfaces. Build and maintain integrations between Loan IQ and enterprise applications. Design and implement AI-powered agents and workflows that improve SDLC processes and engineering ...

## SVP - GenAI Full-Stack Engineer LeadApply: Hybrid: London United Kingdom: Full time: Posted Today: 26988023We’re looking for a hands-on engineering lead with a passion for building AI-powered products and shaping engineering culture. You’ll provide technical leadership while remaining close to the code, partnering … with teams across the organisation to build scalable developer platforms, influence engineering strategy and drive the adoption of Generative AI and modern engineering practices. Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every ...

week in a Liverpool Street office About the Role Global financial institution seeking a highly skilled Senior Data Engineer to join a growing data engineering function responsible for delivering critical data platforms and analytics capabilities across the business. This is a genuinely hands-on engineering role, requiring strong … scalable solutions. The role offers the opportunity to work on complex data challenges within a modern cloud-based environment, leveraging the latest data engineering technologies and best practices. Key Responsibilities Data Engineering & Development Design, develop and maintain scalable data pipelines using Python, Databricks and PySpark Build and optimise ...

pipelines? Apply now for a remote long-term contract opportunity with a leading client in London.## Requirements* 8+ years of experience in Data Engineering* Strong expertise in Python and extensive experience with PySpark and distributed data processing* Expert-level knowledge of AWS services including EMR, Glue, Lambda, S3, Athena …/Elasticsearch, including designing indexes, search schemas, query optimisation, and search performance tuning* Working knowledge of Java and understanding of object-oriented programming and software engineering best practices* Experience implementing analytics and monitoring dashboards* Strong problem-solving and analytical skills* Ability to work in a fast-paced, cloud ...

engineers) - leading from the front, writing code daily, and setting the standard for high-quality engineering. You'll work side by side with an Engineering Manager, ensuring your squad is delivering scalable, well-architected software, while collaborating closely with a Product Manager to build and launch new products … approach problems with fresh thinking, you'll be building greenfield systems from the ground up. Expect to embed AI, automation, and best-in-class engineering practices into everything you develop. If you love writing great code, solving complex technical challenges, and shaping the direction of a team, this role ...

Description Would you like to help drive the growth and technical software delivery expertise of a global company that works with 91% of the Fortune Global 500? Are you an experienced engineer who is fluent with the latest AI and agentic tooling, thrives on AI agent-led delivery … modern agent frameworks and directing AI coding assistants to deliver at pace. You will turn concepts from our architects and product managers into working software quickly, challenge technical design and delivery choices, and bring the analytical rigour needed to take AI solutions safely into production. The Role Design, build ...

member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Description As a Senior Software Engineer (SaaS), you will join a substantial global engineering organisation and provide leadership to highly skilled engineers in the software platform area. … testability and performance. Participate in sprint planning meetings, daily stand-ups and sprint retrospectives, striving to continuously improve the team velocity, its processes and engineering practices. Coach and mentor colleagues where appropriate, fostering a collaborative and quality-focused engineering culture. Qualifications What you’ll bring Platform and control ...

Technical role provides hands-on technical leadership for Trade Service within Wholesale Data & Operations Technology. The role sets technical direction, leads a globally distributed engineering team, and is accountable for delivery, resilience and production outcomes across the service.Architecture and strategy: Own the service architecture and technology roadmap. Set direction … scalable, low-latency, fault-tolerant distributed systems and guide decisions on resilience, capacity, cloud adoption and technical debt.Hands-on engineering: Provide technical leadership through design, code reviews and critical implementation. Guide the development and evolution of Java-based Trade Service SDKs, APIs and integrations for producer and consumer applications.People ...

data” is broad, that’s why we’re keen to speak to those from a data background and cloud natives with experience in building software of high quality standards. As an outcome based consulting business we look for people who enjoy taking a consultative approach to solving problems … support from Indicium AI to learn new skills Requirements (These are || not &&) Experience building end-to-end data-centric systems using modern data engineering techniques (e.g. distributed systems, data streaming, event-based architectures etc) Software development experience with one or more languages (e.g. Python, Java, C#) Solid software ...

sustainable future. Role Summary The Head of Test Automation will provide strategic, technical and organisational leadership for the bank’s test automation and quality engineering capability across Sales and Trading technology business platforms. The role will define and execute the test automation strategy, establish engineering standards and frameworks … improve collaboration between Technology, Business and Product teams and ensure that automated tests are aligned with business requirements and critical trading workflows. Strong software engineering background, ideally with 15+ years in software development, quality engineering or test automation, with significant experience in financial services or other ...

platforms and solutions across complex Government and Defence environments. This is a hands‐on architecture role with a strong focus on multi‐cloud data engineering, automated data pipelines and event‐driven architectures. You will work across both AWS and Microsoft Azure, designing secure, resilient and high‐performing data solutions … that integrate cloud and on‐premises data sources. Working closely with Data Engineers, Cloud Architects, Software Engineers and delivery teams, you will provide technical leadership while remaining actively involved in the design, development and implementation of data solutions. What You'll Do Design and deliver scalable data architectures across ...

application estate towards cloud-native architecture. We are looking for a hands‐on Lead Application Architect to own application-level design, define our engineering standards, and introduce AI-assisted development practices across the team. You will sit between our Solution Architects, who define high-level designs, and the development … Architecture Decision Records (ADRs), run design reviews, and work with the Technology Design Authority (TDA) so that application-level decisions are traceable and consistent. Engineering standards: Define Java coding standards covering exception handling, stream/resource handling, structured logging (Application Insights) and security-first practices. Automate them through project ...

Summary We are seeking an exceptional, high-caliber Senior Software Engineer/Developer to join our Commodities Technology team based in London. Sitting at the intersection of quantitative and high-performance software engineering, this role is dedicated to delivering mission-critical market data infrastructure, services, and analytics … feeds for our global Commodities trading desks. Key Responsibilities System Engineering & Architecture Architect, build, and optimize scalable, resilient, and high-throughput market data engines, curve builders, pricing integration layers, and real-time distribution services. Design and implement clean, modular APIs and event-driven architectures leveraging modern design patterns across ...

202607074Category: Software EngineeringLocation: New York, NY, United States; London, London, United KingdomSchedule: Full timePosted: 2026-11-09Would you like to apply the leading edge of AI to some of the hardest problems in risk and insurance, inside a global company that works with 91% of the Fortune Global … build AI solutions that differentiate WTW in the market, wherever they add the most value across R&A and Data.Prove ideas fast, with working software in days, then industrialise what works: take it through our delivery pipeline (backlog, code review, CI/CD, QA and release) into secure, supportable ...