1 to 25 of 139 Software Engineering Jobs in the City of London

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 ...

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 ...

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 ...

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 ...

driven solutions that transform how organisations make decisions. In October 2025, Accenture acquired Decho Group, recognising our unique ability to combine deep engineering expertise with strategic advisory, tackling mission-critical problems in defence, healthcare, and commercial industries. Joining Decho means joining a consultancy where AI meets engineering excellence. … change lives and industries. The Role We’re seeking Senior Consultant Engineers who want to apply their technical mastery in AI consultancy and Palantir engineering while shaping the future of data-driven decision-making. This is a hands-on, client-facing role where you’ll lead technical delivery, partner ...

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 ...

Director of Engineering - Risk/Threat Intelligence Location: UK (London) - Remote We are hiring on behalf of our client, an early-stage risk and intelligence technology company, for a Director of Engineering. This is a hands-on leadership role responsible for driving the next stage of technical and organisational … growth, scaling the platform, and building a high-performing engineering team. About the Role You will take full ownership of the platform architecture, data pipelines, integrations, and multi-tenant SaaS infrastructure. This is a highly visible, strategic role where you will work closely with the founder and early customers ...

features. You will: Build LLM-powered workflows, chat systems, and assistant-style features. Develop simple, reliable systems that solve real customer problems (no over-engineering). Work closely with product and UX to shape user-facing AI experiences. Deploy LLM models and agentic components in production. You bring: Strong … hands-on experience with GenAI, LLMs, agentic frameworks , or chat/workflow apps. Excellent Python and software engineering fundamentals. Solid cloud experience (AWS preferred, GCP/Azure fine). Product-minded approach and ability to work cross-functionally. 2. Senior AI Engineer - Information Retrieval (Engineering-Focused ...

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 ...

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 ...

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. ...

credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer , you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust … role with plenty of opportunity to develop your technical depth , gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems , you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship ...

Head of Mobile/Head of Mobile Engineering/Head of Mobile Technology/Mobile Technology Director/Head of Mobile Architecture Overview: Really excited to be sharing this outstanding opportunity, we've partnered with a leading UK FS/FinTech client, trusted by million's of users … help shape and deliver this transformation programme where you will play an absolutely critical role. You will be working closely with the Head of Engineering to shape modern Mobile and Web technology that will transform how people invest and manage their finances. There wont be any line management involved ...

seeking a highly motivated Full Stack Software Engineer (2–5 years’ experience) to join our client’s rapidly scaling engineering team. You will play a key role in building and scaling a proprietary operating system to run and optimise real-world industrial manufacturing operations. This role requires … strong generalist mindset, excellent engineering fundamentals, and comfort working in a high-autonomy environment. There is a slight preference for candidates with strong UX or frontend experience. You will work closely with leadership and on-site teams to turn operational challenges into production-grade software. This is a fully ...

financial environment utilizing cutting edge technology with an excellent package and benefits. Candidates must come from a Linux Systems Administrators Background (as opposed to Software Engineering) and have recent Linux Administration experience and whilst not essential, previous Financial/Banking experience may be beneficial. Job Overview The position … development and ops teams; this includes, build Servers, virtual environments and CI/CD pipelines. Assist the Linux team with deployment and maintenance of software/operating system/hardware using systems and configuration management tools (Ansible, Terraform) Systems capacity planning; creating and maintaining a scalable system ...

build, and deploy features, and APIs to automate unstructured tasks Build production-level backend and microservices in Python and TypeScript Work with product and engineering teams to shape models, services, and system behaviour Contribute to system architecture and infrastructure for scale, observability, and performance Explore and implement LLMs, prompt … engineering, and AI orchestration frameworks Take ownership of features end-to-end, from design to deployment and monitoring What They’re Looking For 5+ years of software engineering experience, with strong backend focus Proficiency in Python and/or TypeScript, and experience with production-grade systems Familiarity ...

owner for a product slice, raising code quality, performance, and reliability while mentoring others on agent patterns. Requirements 10+ years of professional software engineering experience delivering production systems. Full-stack depth: Node.js, React.js, Next.js, and TypeScript at an expert level (types as design, not decoration). AI/ ...

Backend Tech Lead/Hands-On Engineering Manager London | Hybrid/Remote-friendly | £90k–£100k This is an opportunity to step into a hands-on technical leadership role within a growing backend engineering team. The company is at a natural inflection point: the engineering group is expanding … taking ownership of team leadership and delivery. This is not a people-only management role. Expect an ~80/20 split between hands-on engineering and leadership responsibilities. The Role Act as the technical lead for backend development, contributing directly to architecture and feature delivery Provide ...

complex and highly visible everyday problem at national scale. They’re looking for a Staff Product Engineer to operate at the intersection of product, engineering and systems design, owning a small number of high-impact initiatives that materially change how customers experience the product and how the platform scales. … shipping incrementally and measuring impact continuously. You’ll also help define the technical patterns, primitives and “paved roads” that enable a small, fast-moving engineering team to scale effectively. This role reports directly into senior technical leadership and has clear visibility at exec level. Key Responsibilities Own and deliver ...