1 to 25 of 179 Software Engineering Jobs in the City of London

supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who specialize in software engineering, logical reasoning, STEM, multilinguality, multimodality, and agents; and second, by applying that expertise to help enterprises transform AI from proof of concept … into proprietary intelligence with systems that perform reliably, deliver measurable impact, and drive lasting results on the P&L. Project Overview: As a Software Engineering evaluator, you will create cutting-edge datasets for training, benchmarking, and advancing large language models, collaborating closely with researchers. This includes curating code ...

wins we need to grow rapidly to meet our demand. Were looking for a senior technical leader to support the surge growth of our Software Engineering practice by ensuring we hire engineers who meet the highest standards technically, architecturally, and interpersonally. This isnt a recruiter role … scaled teams before, understands what good looks like, and can support us in making confident, consistent hiring decisions. Working closely with the Head of Software Engineering, youll lead technical assessments, shape interview processes, and coach others in the practice to apply high-quality, values-aligned evaluation. Your insight ...

personalised experiences that are both simple and beautiful. About the Job – Machine Learning Engineer We are looking for a Machine Learning Engineer with strong software engineering fundamentals to join our team of domain experts and researchers. You will be responsible for building robust, scalable ML systems that bring … translate experimental models into reliable, maintainable software. Optimise ML systems for performance, scalability, and cost-efficiency in cloud environments (distributed clusters, GPUs). Establish engineering best practices for ML development, including testing, CI/CD, and code review standards. Progression Timeline Month 1: Onboard to existing ML codebase ...

Head of Engineering £110,000–£130,000 + EMI Options London (mostly onsite) We’re partnering with a purpose-led London fintech scaleup solving real-world financial challenges through smart, accessible technology. With solid backing, strong user traction, and a mission that’s resonating across the UK, this … company on the rise. You’ll join at a pivotal moment, with the chance to influence how technology scales and how the engineering culture is built. The Head of Engineering will own both the technical direction and team development — combining strategic oversight with hands-on impact. ...

Senior Software Engineer 📍 Location: Onsite, London, United Kingdom ⌛ Type: Full-time 💰 Compensation: Negotiable (Competitive salary + equity) About Ontik Ontik is an ambitious, early-stage B2B financial operations platform designed to streamline and simplify complex financial workflows for heavy duty industries. We’re scaling rapidly and looking … high-performance, ownership-driven environment, where you can make a direct impact on the product and help shape its future. Role overview As a Software Engineer (Full-Stack) at Ontik, you’ll play a pivotal role in building and scaling our financial operations platform. This is a hands ...

Software Engineer – Custom Software (Android) London Office Hybrid working – approx. 20% onsite URGENT contract - Initial 4 months with high likelihood of extension We’re looking for a Software Engineer with strong Android expertise to join a high-impact custom software team delivering solutions for a major … defence client. This role offers the opportunity to work on complex, mission-critical systems using modern engineering practices in a collaborative, agile environment. You’ll be part of a well-established engineering team, contributing to the design, development, and enhancement of bespoke software applications tailored to specific ...

Java Software Engineer with around 4-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff … tenure. This hire will be part of a core Software Engineering team, responsible for the vast majority of all applications in the business from front-to-back office.This includes Order Management & Trading Execution, Risk & Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users ...

client journeys and delivering on HL's vision to give people financial freedom. You will work with like-minded people from business, product and engineering functions to develop and refine client journeys covering onboarding, KYC, account management and investment workflows in a secure and compliant environment. By joining … Android using cross platform React Native technology stack. Solid experience & knowledge of React Native is a must-have. Define and uphold mobile engineering standards, best practices, and architectural principles. Lead technical decision-making, balancing short-term delivery needs with long-term maintainability and scalability. Ensure applications are performant, accessible ...

insurance clients, spanning agentic systems, retrieval architectures, semantic layers and decision intelligence. This is a senior, hands-on consulting role combining deep AI engineering expertise with strong client-facing presence, shaping both insurance-specific client outcomes and the firm s long-term AI engineering capability. As demand accelerates … across claims automation, underwriting decision support, policy servicing, fraud detection, compliance and operational efficiency, the consulting practice is expanding its engineering capability across agentic systems, retrieval, ontologies and AI-enabled execution within regulated insurance environments. The Consulting Engineer is a hands-on AI systems builder who combines engineering ...

insurance clients, spanning agentic systems, retrieval architectures, semantic layers and decision intelligence. This is a senior, hands-on consulting role combining deep AI engineering expertise with strong client-facing presence, shaping both insurance-specific client outcomes and the firm’s long-term AI engineering capability. As demand accelerates … across claims automation, underwriting decision support, policy servicing, fraud detection, compliance and operational efficiency, the consulting practice is expanding its engineering capability across agentic systems, retrieval, ontologies and AI-enabled execution within regulated insurance environments. The Consulting Engineer is a hands-on AI systems builder who combines engineering ...

Company Raised $200m+ for charity worldwide Human-centric business Caring Culture – good people doing good for the world The Role Work cross-functionally with software engineering, Product and UX to bring this platform to life. Help architect, design, and implement well-tested new product features. This role … just about coding, its about influencing product and business impact Desired Skills & Experience Fullstack JavaScript/TypeScript/Node.js software engineering experience SASS, DynamoDB, AWS Lambda, and Serverless Framework are all beneficial eCommerce/Shopify experience is a bonus ...

Senior Software Engineer (Python) 💰 Up to £130,000 + excellent benefits (including work from abroad) 📍 Hybrid - 2 days onsite in Central London (London Bridge) Are you a Senior Python Engineer who loves solving deep technical challenges? Want to help reinvent how future hardware is created? 🚀🔬 Join a top-tier … engineering team building a revolutionary platform that turns high-level hardware requirements into complete circuit designs. You’ll work on complex problems at the crossroads of software, data and engineering, collaborating with experts across multiple disciplines. What You’ll Do Own and evolve backend systems across data ...

offices (on average once per week), and were happy to discuss flexibility to make this work for you. We are looking for a Lead Software Engineer who will be responsible for the design, development, and deployment of high-quality software solutions. This role involves leading a team … engineers on high-profile projects, ensuring best practices are followed, and driving continuous improvement in software development processes. You will collaborate closely with cross-functional teams, including product management and UX/UI, to ensure that our software solutions meet business and customer needs. You will be responsible ...

Software Engineer Were now on the lookout for a Software Engineer to support our UK Production Support team that is working on delivering high-quality support and solutions to clients. In your role as Software Engineer, youll work closely with internal teams and clients to resolve issues … local statutory requirements. Provide out-of-hours support to clients when required. Skills & Experience required to perform this post: 7+ years experience in software engineering and a solid understanding of the software development lifecycle (SDLC). Technical experience with OOAD, SOA, Java, J2EE, Spring, React.js, Node ...

ways of working, standards, and governance Drive coherence across the technology stack, ensuring architectural consistency across: Secure cloud and compute platforms Digital factory and software engineering approaches Enterprise and business systems Advise on strategic technology choices, including: Platform and tooling selection Cloud strategy and deployment models Where … Experience & Skills Required Senior experience in Enterprise Architecture or technology leadership roles Defence, aerospace, or similarly regulated sectors Secure cloud and enterprise compute environments Software engineering standards and development governance Digital delivery models (agile, waterfall, hybrid) Proven background in large, complex, highly regulated organisations Comfortable operating in secure ...

Senior Software Engineer (Python - FastAPI) This fast-growing consultancy is pushing the boundaries of AI and data science, helping clients turn complex challenges into scalable, production-ready solutions. They’re now hiring a Senior Software Engineer who can blend deep technical expertise with a practical, delivery-focused mindset. … above What You’ll Be Doing: Leading the end-to-end design and build of applications that utilise advanced AI and data-led software solutions. Developing scalable data pipelines and backend services that support complex modelling work. Setting standards for clean, efficient engineering across Python(FastAPI ...

Software Engineer – AI Role: Develop robust, scalable software systems supporting AI, robotics, and scientific applications. Build backend services, APIs, and integrate ML models, hardware, and data pipelines. Own the full software lifecycle: design, coding, testing, deployment, and observability. Collaborate with multi-disciplinary teams of engineers, scientists … domain experts. Requirements: MSc or equivalent in Computer Science, Software Engineering, or related field. Strong Python experience and proven success in deploying scalable distributed systems. Experience with APIs (REST/gRPC), CI/CD pipelines, and complex system integration. Excellent communication and teamwork skills. Nice to Have: Experience ...

systems that power one of the UKs leading media groups. Were looking for a hands-on Tech Lead moving into a Head of Engineering role or current Head of Engineering to lead this change from the front, a full-stack technologist who codes with confidence, architects with foresight … inspires teams to deliver with purpose. Youll own the engineering direction across multiple domains; designing scalable cloud-native platforms, embedding DevSecOps excellence, and ensuring our technology foundation accelerates the business. DevSecOps would be desirable to have but so long as you have DevOps that is fine. This ...

Senior Software Engineer - .Net Contract UK, Remote | Contract Inside IR35 | 6 months Start - ASAP Curated is partnering with a highly successful InsurTech that is continuing to scale and modernise its core technology platform. The business operates at significant scale, supports complex, data-driven products, and is investing heavily … engineering capability as part of a long-term transformation programme. They are expanding multiple engineering teams and are looking to bring in experienced contract Software Engineers to support high-impact delivery across a critical platform. This role will suit senior engineers who enjoy working on large, evolving ...

Intelligence is on a mission to make AI safe and reliable for everyone. To help us achieve this, we're seeking a Full Stack Software Engineer to join our team! We're particularly looking for someone with strong Golang, Typescript and Kubernetes experience . Python skills would also … senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ability to deliver production-ready solutions, and a collaborative spirit to work closely with our product and research teams. Note: the role ...

About the job Reporting to a Software Engineering Manager or Head of Engineering, we are seeking a Lead Back End Software Engineer to be the go-to authority for backend engineering, setting the technical vision, guiding architecture, and driving improvements in tools, processes, and delivery … Spring Boot, and event-driven systems such as Kafka, you’ll influence systems well beyond your own code, ensuring architectural integrity and high engineering standards across multiple teams. You’ll play a pivotal role in aligning technical strategy with business goals and ensuring our backend capabilities are future-ready. ...

Staff Software Engineer Technical leadership | Azure Architecture | .NET | Angular | Platform Scale GTreasury is scaling its core SaaS platform - and we’re looking for a Staff Software Engineer to help lead that journey. This is a senior technical leadership role where you’ll combine deep hands-on engineering … What You’ll Lead Drive technical design across front-end, backend, and data layers Partner with architects and product leaders on platform evolution Set engineering standards and raise the technical bar Mentor senior and mid-level engineers Own production reliability in a “you build it, you run it” model ...

available cloud environments using public cloud platforms Building and maintaining secure, resilient network architectures (virtual networks, routing, firewalls, load balancing) Working closely with product, engineering, and delivery teams to translate business needs into scalable infrastructure Influencing technical direction across dependent engineering teams to improve platform reliability and delivery … Creating automated provisioning and deployment pipelines using Infrastructure as Code Continuously improving platform architecture through modern cloud engineering practices Managing cloud resources efficiently while meeting governance and compliance requirements Supporting and mentoring other engineers to promote high standards of engineering practice Diagnosing and resolving infrastructure and platform issues ...

Software Consultant | London (Once a month onsite) | £80,000 - £95,000 We’re working with a digital delivery business that connects organisations with high-quality near- and offshore development teams. As AI becomes core to modern software delivery, they’re hiring an AI Partner with a strong software engineering background to shape how AI capability is assessed, embedded, and scaled across their partner network. This role is for a hands-on engineer, not a theorist, who can evaluate real-world AI systems, review code and architectures, and build internal tools that improve how partners are vetted ...

products into their existing workflows to drive high adoption and value. Move fast and iterate: Work in an agile environment where experimentation, pragmatic engineering, and rapid iteration are key to creating business value. Leverage modern tools and methods: Use contemporary ML frameworks, cloud platforms, and MLOps best practices … Communicate insights clearly: Distill complex technical findings into concise, actionable narratives for technical and business audiences alike. Keep learning and pushing boundaries: Expand your engineering toolkit across the full ML development lifecycle—from prototyping to deployment—and explore new architectures, tools, and approaches to solving complex, real-world problems. ...