1 to 25 of 63 Software Engineering Jobs in the City of London

post-quantum security, usable security and human factors, security for AI and AI for security, blockchain and distributed ledger technologies, systems and network security, software and malware security, privacy. Software Engineering, including AI-assisted software development, software architecture and design, formal methods, testing, empirical software engineering, human factors, and software evolution. Computer Architecture, including neuromorphic computing, processor and memory system design, new computer architectures for efficiency and scalability, parallel and multi-core systems, domain-specific accelerators (e.g., for AI, graphics and vision), and quantum computing hardware. Theoretical Computer Science, including algorithms ...

looking for an experienced and talented Software Engineering Manager to lead a Unified Client Experience (UCX) product development team in building market-leading solutions for our clients. About HL and the opportunity. We're building the next generation platform for one of the UK's largest financial services … 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 ...

ensure network security. Implement and manage routing protocols such as BGP and OSPF, with a focus on high-availability designs. Ensure adherence to software engineering best practices, including unit testing, code reviews, and troubleshooting. Support infrastructure-as-code practices using tools like Terraform, Pulumi, and GitOps principles. Contribute … routing protocols (BGP, OSPF) and high-availability architecture. Hands-on experience with Infrastructure-as-Code tools (e.g., Terraform, Pulumi) and GitOps methodologies. Expertise in software engineering practices: unit testing, code reviews, documentation, debugging, and troubleshooting. Comprehensive understanding of technology stacks, from networks to applications. Solid understanding of Linux ...

Software Engineer C++ Developer Automated Machining Strategy (London/Hybrid) Salary bands depending on experience About the Organisation We are a technology-driven company working to modernize precision manufacturing. Our team builds intelligent software that speeds up the creation of CNC machining programs and supports operators in producing … advanced algorithms to streamline the most time-consuming programming steps, helping manufacturing teams increase productivity and consistency across their workflows. We are a growing engineering-led organisation with strong expertise across software development, applied mathematics, and real-world machining. The Opportunity We are expanding a core engineering ...

Company Description Are you passionate about engineering? Do you want to make a difference? ALTEN is a global engineering and technology consultancy operating across over 30 countries worldwide. We partner with industry leaders across sectors including Aeronautics, Aerospace, Defence, Naval, Automotive, Energy, Rail, and many more to deliver … innovative engineering solutions that drive technological advancement and support sustainable transformation. Our teams of passionate and agile engineers work on cutting-edge projects that shape the future of technology and sustainability. At ALTEN, we empower talented engineers to innovate, solve complex challenges, and deliver impactful solutions that build tomorrows ...

Java Software Engineer/Developer (Full Stack Java) London/WFH to £100k Are you Java technologist? You could be progressing your career in a hands-on, impactful, Software Engineer role, working on a 'tech for good' product that is helping to drive efficiencies … highly complex real-time shift rota application, hosted on AWS and available via the web or mobile device (iOS/Android). As a Software Engineer you will play a crucial role in re-architecting and enhancing the scheduling platform to a Java and Angular codebase (from Ruby ...

RESTful APIs using Java integrated with banking platforms Develop full-stack features with JavaScript frameworks (Angular) Champion CI/CD, TDD/BDD, and engineering best practices Optimize Java applications for high-volume, high-availability systems What You Need 5+ years experience as a Software Engineer with strong … experience preferred Why Join? Java-focused role powering major banking platforms Scale-up energy with enterprise stability Comprehensive benefits + career development programs within software engineering Are you a Senior Fullstack Engineer with skills across Java and Angular? Apply now to discuss this opportunity in fintech. ...

Strong understanding of machine learning frameworks (TensorFlow, PyTorch, Scikit-learn) Experience with LLM integration (OpenAI, Anthropic, open-source models) Knowledge of RAG architectures, prompt engineering, and vector databases (Pinecone, Weaviate) Experience with MLOps tools and monitoring model performance in production Automation Architecture Deep knowledge of automation tools including GitHub … tools like Appian Workflow orchestration experience (Airflow, Prefect) Ability to build custom automation frameworks using Python or similar languages Full-Stack Development Solid software engineering background with proficiency in Python, JavaScript/TypeScript, Java, or Go Experience with modern frameworks (React, Node.js, Django, FastAPI) Knowledge of microservices architecture ...

Code Required skills and experience for the role of Senior Full Stack Systems Developer include: A UK Degree (or equivalent qualification) in Data Science, Software Engineering, or a similar, relevant field Extensive experience of working in a Full Stack Developer role Considerable experience of developing software products … within the environmental sector Experience of overseeing the Full Software System Lifecycle of a product, demonstrating your commitment to continued development and improvement Demonstrable experience in the use of Java Middleware, API, Docker, and MQ systems Good working knowledge of performance and security in Enterprise Systems Experience of working ...

Clearance Your role You will be a hands-on technical expert helping us deliver projects in a true DevOps manner. You will apply a software engineering mindset to problems, whether that's provisioning services, writing code or writing automation tools and scripts. You will have a lean mindset … performant services that are operationally sound. You will strive to do things better and faster, eliminating waste and applying this across the entire software delivery lifecycle for both internal customers and end users. Your skills and experience What you'll bring: * Experience of Java * Experience of Spring framework ...

role where you'll own the technical direction of a serverless, event-driven, globally distributed platform built on AWS. You'll lead a distributed engineering team, shape high-performance APIs, and build systems that scale hard and run clean. What's On Offer Competitive salary + performance bonus. Meaningful … performant public APIs. Build real-time, distributed systems on AWS (Lambda, DynamoDB, Kinesis, ECS/EKS). Mentor a cross-functional team and elevate engineering standards. Prototype and ship features that drive commercial impact - including mobile apps and PWAs. What You'll Bring Essential: 7+ years in software ...

highly-available multi-cloud payment systems running the latest technology. You will understand current threats, exploitation paths and risk tradeoffs in order to advise engineering teams on beneficial security features as well as prioritise management of defensive controls. Essential You live on the linux command line Your current research … expertise extends to at least one public cloud, including essential security features and long-term security hardening practices You appreciate building systems with good engineering practices and may have a background in software engineering at scale You're open to being a part of an on-call ...

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 ...

Principal Python Engineer London | Permanent | Hybrid Ncounter is supporting a global investment firm in hiring a Software Developer to help design and evolve internal compute frameworks that underpin their trading and research platforms. This is a high-impact role, working at the intersection of software engineering … practices, improving overall development quality Work across distributed systems, containers, and automation pipelines to deliver scalable solutions What were looking for: 6+ years professional software development experience Strong proficiency in high-performance Python (deep ecosystem knowledge and best practices) Experience with at least one JVM language (Java, Kotlin, Scala ...

Senior Software Engineer (TypeScript Full Stack) London/WFH to £100k Do you enjoy problem solving and working with a range of technologies including functional programming languages such as Elixir, using the right tool for the job? You could be progressing your career in a senior, hands-on Software … career development and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a Senior Software Engineer you will take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability ...

skills may include: Expertise with scripting languages (e.g. PowerShell, Python, Bash) for automation/migration tasks Experience of working on Data migration tools and software's Expertise in system configuration management tools such as Chef, Ansible for database server configurations. You may be assessed on the key critical skills … well as job-specific technical skills This role can be based in our London, Knutsford or Glasgow locations. Purpose of the role To apply software engineering techniques, automation, and best practices in incident response, to ensure the reliability, availability, and scalability of the systems, platforms, and technology through ...

technology stack and system architecture What You'll Bring: Advanced Python skills Strong academic background - STEM degree from a top university Deep understanding of software engineering principles and best practices Independent thinker who thrives in fast-paced, intellectually demanding environments This is your opportunity to join a fund ...

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 ...

internal users and external customers working with the Arena platform and associated open-source tools. Requirements Master's or PhD in Computer Science, Engineering, or a related field, or at least 3 years of relevant industry experience. Strong understanding of reinforcement learning algorithms and concepts, with practical experience … development, deployment pipelines, and performance optimisation. Experience designing and developing cloud-based infrastructure for distributed computing and scalable data processing. Deep understanding of software engineering and machine learning principles and best practices. Strong problem-solving and communication skills, with the ability to work both independently and collaboratively. Compensation ...

Security Vulnerability Engineer Contract - Inside IR35 London - Hybrid (2 - 3 days a week in office) 6 months Are you a skilled software engineer with a passion for cybersecurity? This company is seeking a talented individual to join their team as a Security vulnerability engineer. This is an excellent opportunity ...

Software Engineer (UK - Bristol, London, or Manchester) Up to £160,000 + benefits/Bonus Join a leading financial technology and trading organisation driving innovation in electronic markets. As an eFX Software Engineer, you'll design and deliver high-performance, low-latency trading solutions that underpin mission-critical … deliver best-in-class E-trading platforms Ensure all solutions meet security, compliance, and performance standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing ...

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 ...

have access to the best cutting edge tools to give them an edge in the game. The company is looking for a Senior Backend Software Engineer who has high level Python experience to build the backbone of Web3 technologies. Responsibilities Implement backends for Web3 products Use Rest API with … Python Work on the backends with blockchains and web3 Requirements Fluent Python and SQL experience Familiar with Cloud Infrastructure 3 years of Software Engineering experience Prior Crypto or Web3 experience (preferred) Experience building frameworks using Python Benefits Competitive base salary Flexible Working Hours Offers personal & professional growth ...

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 ...