101 to 125 of 269 Software Engineering Jobs in the City of London

company aims to reduce financing costs and optimize return metrics. Who We're Seeking: We're on the lookout for a seasoned mid-level Software Engineer with up to 6+ years of hands-on Python experience. Familiarity with AWS Serverless and related technologies would be advantageous. Strengths in Pandas ...

Software Engineer - Mid-Lead Level - Security & Defence 📍 Location: London, Gloucester, or Manchester (Hybrid options available) 💰 Salary: £47,000 - £90,000 + clearance uplift + company bonuses + benefits 🟩 Clearance: Active eDV Clearance Join one of the UK’s most impactful mission-led technology teams and work at the sharp … national security. We’re working with a range of defence primes, specialist consultancies, and tech-first SMEs delivering cutting-edge software solutions to protect the UK’s critical assets. These roles are core to national security, working across projects in cyber defence, secure data systems, threat intelligence, and high ...

with a stealth AI company, founded by world-class engineers with backgrounds from top-tier Silicon Valley firms, is looking to grow its core engineering team in London. This is a rare opportunity to join a well-funded, product-focused startup that's tackling one of the biggest challenges … team is obsessed with quality, speed, and pushing the boundaries of what’s possible with AI. Your Background 3+ years of professional experience in software engineering Strong expertise in Python and SQL (core stack) Experience shipping complex products or systems Passion for learning and solving hard problems Bonus ...

applications, implementing new features, and collaborating with cross-functional teams. The role involves ensuring app performance, usability, and security standards, and troubleshooting and resolving software issues to deliver an optimal user experience. Qualifications Proficiency in Swift programming language and iOS frameworks Experience with UIKit, Core Data, and SwiftUI Knowledge … Knowledge of security features and best practices for secure app development Effective communication and collaboration skills across teams Bachelor’s degree in Computer Science, Software Engineering, or related field Previous experience in developing complex, secure applications is highly desirable ...

strategic role that demands deep expertise in solution architecture, with a strong emphasis on data, integration, and application design. You'll collaborate across engineering, product, and business teams to ensure technology solutions are robust, scalable, and aligned with long-term goals. Can you demonstrate where you have - Designed … designing service-oriented and message-oriented integrations Hands-on experience with scalable consumer-facing platforms and subscription/payment systems Deep understanding of software engineering principles, agile methodologies, and architecture modelling (UML, logical/physical/data models) Excellent communication skills with the ability to influence stakeholders ...

Agentic Developer at governr, you'll build the core systems that monitor, analyse, and govern autonomous AI agents in production. This isn't traditional software engineering with well-worn patterns. You're designing architectures for problems that didn't exist 18 months ago. You'll be responsible … risk management and financial regulation. Early team of sharp, mission-driven builders. Learning Curve : You'll gain expertise in cutting-edge AI architectures, enterprise software, regulatory frameworks, and category creation simultaneously. This is one of those roles you look back on as career-defining. Impact Leverage : Every system ...

maintain scalable data science products using statistical and machine learning techniques Perform data analysis to generate actionable business insights Collaborate closely with data engineers, software engineers, and business stakeholders to deliver end-to-end solutions Apply data science and GenAI techniques (including LLMs and RAG) across the full data ...

collaborative work in a dynamic and creative environment. You are comfortable working with the different technical experts being part of a multidisciplinary team, guiding software engineers as they build your designs. A strong desire to co-create with users and relish participation of stakeholders and the wider team ...

JD. Technical Fluency: You possess a strong track record of hiring for complex technical profiles. You effectively understand the nuances between different engineering and research disciplines (e.g. Machine Learning, MLOps, Software Engineering, etc.) and can credibly screen candidates for different types of roles based on technical requirements. ...

fast-growing AI-driven SaaS company is hiring three Senior Software Engineers to join its engineering team. These are hands-on roles with a strong backend and architectural focus, ideal for engineers who enjoy working in scale up or startup environments and want to build high-quality, cloud … native software that powers real-world automation. You’ll be part of cross-functional squads delivering modern, serverless, AI-enabled applications used in highly regulated industries. The company has a strong engineering culture, embraces AI-assisted development, and offers autonomy, impact, and the chance to help shape technical ...

Senior Software Engineer Location: London 1x a month Salary: £75,000 - £95,000 An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects … doing? Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer ...

Senior Software Engineer Location: London - Hybrid (Occasional Travel required) Salary: £75,000 - £95,000 An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield … doing? Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer ...

development of an efficient and scalable package for performing verification and robust learning. Requirements. The technical requirements for the role are: Previous Scientific and Engineering contributions to key problems in machine vision, such as object detection or tracking, typically evidenced via first-author papers in top computer vision conferences … industrial real world deployment of Machine Learning solutions. At a personal level we’re also looking for some who is: Passionate about helping engineering teams achieve their AI and ML goals. Comfortable and energized in a fast-paced environment. Excited about interacting with others and digging in to help ...

Senior Backend Software Engineer (Python) Web3 Hybrid (HQ: London) £90k - £150k Plexus has another great opportunity with a Senior Backend Engineer (Python) position. Youll play a pivotal role in designing and building robust, scalable backend systems that form the backbone of Web3-first products. Your work will directly shape … experience with modern Python web frameworks (FastAPI, Flask, or Django). Solid understanding of cloud infrastructure and deployment environments. 3+ years of professional software engineering experience. Benefits: Bonus Equity Flexible Holiday Allowances Hybrid and Flexible work environment. ...

Principal Software Engineer Location: London - 1x a month Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions. This … What will I be doing? Lead the technical vision and architectural direction across complex backend systems, ensuring scalability, reliability, and performance. Partner closely with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software ...

Principal Software Engineer Location: Remote first (Occasional travel to London) Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions. This … What will I be doing? Lead the technical vision and architectural direction across complex backend systems, ensuring scalability, reliability, and performance. Partner closely with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software ...

process flows, system architecture, and integration points Ensure compliance with regulatory standards such as MiFID and internal quality protocols Requirements: Degree in Computer Science, Software Engineering, or related field Proven experience as a Business Analyst within equities trading Strong knowledge of EMEA market workflows, order routing, and market ...

Contribute to architectural decisions and codebase best practices Monitor performance and proactively resolve bugs, crashes, and UX challenges Required Skills & Experience 4+ years in software engineering, with at least 2 years of hands-on React Native experience Strong proficiency in TypeScript , React Native , GraphQL , and Expo Experience deploying ...

Java Developer sought by UK SaaS technology company, scaling at pace & looking for a Senior Software Engineer to join small, yet experienced team to lead from the front on new feature development. Your coding will influence thousands of users across our platform & we love to innovate by giving ...

Senior Product Engineer (Fullstack Software Engineer) London, Old Street, Onsite, AI Agents, Skippr AI (direct, no agency please) ⭐ About the role We’re looking for a Product Engineer to join our small but high-calibre team in Old St . We’re a team that’s 100% AI-native ...

systems. The ideal candidate comes from a world-class HPC environment—such as FAANG, research, or hyperscale infrastructure—and combines deep Linux expertise with software engineering skills. You’ll work on uniquely customized systems at scale, where every engineering decision impacts performance, reliability, and research productivity. Core … tools to enhance automation, reliability, and visibility. Strategic infrastructure initiatives shaping the next generation of compute systems. Team & Culture Tight-knit, high-performance HPC engineering team with direct ownership of critical systems. Daily collaboration with researchers, developers, and trading technologists. A culture emphasizing technical excellence, autonomy, and continuous learning. ...

similar STEM discipline, having achieved a 2.1 or above from a Russel Group/Oxbridge or top 100 global university You are an experienced software engineer with a strong knowledge of best practices and Computer Science fundamentals and experience of delivering complex, data centric software You have advanced ...

Software Engineer - C++ Title : Software Engineer - C++ Company : Elite Software House Location : Remote Salary : £80,000 - £115,000 Skills : C++, Algorithms, Boost Overview : Are you someone that thinks that writing slick, classy C++ code can and should be an art? Would you like to be part … internationally recognised team of C++ experts led by the brightest C++ minds in the world? An elite software house are looking for the top 1% of engineers of all levels to come on board as they continue to develop beautiful algorithms which power business decisions for millions of users. ...

Engineer – Rapidly Growing AI Company I'm partnered with a fast-growing AI company that is scaling its engineering team and looking for AI Engineers who want to build next-generation intelligent systems used by major enterprises across the world. This is an outstanding opportunity for someone who loves … with product teams to iterate quickly and deliver meaningful outcomes What They’re Looking For We’re speaking to engineers who have: Essential Strong software engineering fundamentals (SDLC, testing, modern frameworks) Hands-on experience taking code from dev → production in cloud environments Interest or experience in agentic systems ...

This is the future of HL - and the future of investing. We're building the next generation of platform for one of the UK's largest financial services companies, trusted by over 1.8 million clients ...