326 to 350 of 530 Software Engineering Jobs in London

Senior Software Engineer London – 1 day a week onsite Are you a highly experienced individual contributor looking for a step up into a senior position in a high-performing team within the world of Banking/Payments? Are you passionate about high-throughput, real-time systems? This is your … enable real-time, secure transactions across the globe. What You’ll Be Doing You’ll be the focal point of a high-performing engineering team building asynchronous, event-driven systems using modern Java technologies, whilst working closely with some of the largest banks across Europe. Design and build scalable ...

Data Software Engineer/Developer (Python Spark Azure) London/WFH to £100k Are you a data centric Software Engineer with strong Python coding skills? You could be progressing your career in a senior, hands-on Data Software Engineer role at a scaling, global technical services company … they look to expand their product offerings with a new SaaS data analytics platform. As a Data Software Engineer you will join a small team focussed on a huge data platform that provides analytics on mortgage based securities in US markets and is set to revolutionise this space with ...

Embedded Software Engineer (Contract/Flexible) – Outside IR35 We are a small but established engineering firm looking to engage an experienced Embedded Software Engineer on a flexible, non-committed, Outside IR35 basis. Our existing embedded software contact is no longer available, and we are now seeking … contractor or freelancer who values autonomy, flexibility, and long-term collaboration without fixed hours or guaranteed workload. The Role Act as the primary embedded software contact for the business Take ownership of embedded firmware development as projects arise Work closely with hardware and systems engineers Support development from concept ...

tier Java developer (or aspiring, half of the team don't have a comp sic degree) with a passion for solving engineering problems and delivering business functionality. The role will involve design and implementation with real input into business offerings. The work that you will do will have ...

tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion for solving engineering problems and delivering business functionality. The role will involve design and implementation with real input into business offerings. The work that you will do will have ...

Software Engineer (Kotlin) £65,000 - £80,000 + bonus + excellent Benefits Hybrid - 2 days onsite in Central London (Zone 1) Are you a JVM engineer curious about Kotlin - or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world? Join a high … calibre engineering team building modern, customer-facing and energy-focused systems in one of the UK's most exciting clean tech companies. You'll join one of their core teams, diving deep into production systems, identifying bottlenecks and driving long-term architectural decisions that support scale, resilience and product ...

Location: London Employment Type: Full-time Department: Engineering – Hardware About the Company Timebeat is a leader in high-precision clock synchronisation technology, delivering enterprise-grade timing solutions for financial services, telecommunications, aerospace, defence, and critical infrastructure. Our products enable nanosecond-level accuracy, reliability, and visibility across distributed systems. … expanding our hardware engineering team to continue advancing our timing platforms and next-generation synchronisation devices. Role Overview We are seeking a Hardware Design Engineer with experience in PCB design using Altium Designer . In this role, you will design, develop, test, and iterate hardware solutions for high-precision ...

society’s toughest challenges. As a Senior Product Engineer, you’ll take ownership of one of their core AI products, leading a small, talented engineering team while staying hands-on with code. You’ll shape architecture, mentor engineers, and work closely with product and design teams to deliver meaningful … high-impact features used daily by people improving lives across the UK. What you’ll do Lead a product engineering team building AI-powered tools that make a measurable social impact. Spend around 60% of your time coding, across backend, frontend, and infrastructure. Design scalable systems and technical architecture ...

junior team members and graduates across the business. Helping to educate others across the business in AI and related methods through collaborative work (including software engineers, leadership, non-technical consultants) and presenting to wider communities via blogs, events and conferences. About You BSc (or MSc/… pymc). Ability to absorb complex new scientific concepts and quickly get up to speed on new areas of the literature. Good understanding of software and ML engineering best-practices (e.g. git, package development, model deployment). Ability to present complex technical concepts to both technical ...

Software Engineer Our new client are expanding their engineering capability and are looking for talented Software Engineers with a strong focus on Java to join a growing team. If you thrive in modern engineering environments and enjoy building scalable, high-quality services, this role will … developing robust, secure, and efficient services using modern Java frameworks and tooling. Expect to contribute to API development, containerised applications, and cross-functional engineering initiatives. Must-Have Skills Strong commercial experience with Java Hands-on expertise with RESTful APIs Proficiency in Spring Boot Experience working with Docker Solid understanding ...

Klyk Founding (Senior) Software Engineer 🌍 About Klyk At Klyk, we’re on a mission to eliminate waste from the business technology ecosystem. As a certified B Corp, we help modern companies adopt a Circular IT model — reducing cost, carbon emissions, and operational complexity across their entire device lifecycle. … modern platform that brings together IT, hardware, cybersecurity, automation, and AI — all in one place. 🎯 The Role We’re looking for a Founding (Senior) Software Engineer to build and shape the Klyk platform from zero-to-one. This is a foundational position with significant autonomy, where you’ll work ...

Software Engineer (Java/Fintech) | London | 6-Month Contract Role: Backend Software Engineer Team: RegTech (Fintech Business Unit) The Stack Primary: Java (Expert level) & Microservices. Data: Cassandra, Hadoop, MySQL. Cloud: AWS (Kinesis, Step Functions, EC2). Focus: Distributed systems, batch processing, and data integrity. The Mission Build … lifecycle of services that handle identity verification, risk assessment, and onboarding for a global partner base. Requirements Experience: 3+ years in server-side software development. Architecture: Building highly scalable distributed systems and data pipelines. Expertise: Unit/Integration testing, architecture reviews, and defining SLOs. Mindset: "Can-do" attitude; able ...

Role: Software Engineer, Frontend Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. … applications. Being part of the Online team, you will be working closely with engineers, designers and the product team. While this is primarily an engineering role, we are always looking for developers who have a keen eye for product and who can contribute to the development of features ...

Java Engineer - Java Developer - Software Engineer - PostGres - Kubernetes - Kafka - TDD - 6-Month Contract - Hybrid (2 days on site, London) - Day Rate: Up to £650 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance … working in cloud environments, ideally AWS Knowledge of Kubernetes and containerised systems Familiarity with CI/CD pipelines and automation tooling Strong understanding of software testing, TDD, and unit testing Comfortable working within Agile teams Clear communication skills and the ability to collaborate effectively in a hybrid setup ...

Software Engineer/Developer (Java Spring Boot AWS) London/WFH to £65k Are you a backend focused Java Software Engineer looking for an opportunity where you can make an impact? You could be progressing your career at a growing US based tech company that provide a platform … gaming and gambling businesses to retain their customer base, as they expand their UK presence. As a Software Engineer you will be instrumental in helping the company to bring all tech inhouse; you'll design and develop new features and enhancements to the core platform as well as maintaining ...

Working at our iconic office in King's Cross, London, and virtually via Microsoft Teams. Your new role at NewDay As a Senior Software Engineer you will develop innovative products, services and interfaces for our customers and partners. Key contributor to web design and architecture to deliver the best … tolerant architectures. Effective communication is an attribute we care deeply about, as an engineer you and your team will move in a fast-paced engineering environment to achieve outstanding results. What You Will Be Doing You will contribute to business-critical acquisition journeys for cards and loans, building ...

full-time role, 40 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt … datasets. Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency ...

Role: Senior Software Engineer/COBOL Developers/Engineers Work Location: London, Glasgow or Newcastle (Office based) Duration: 6 Months+ Our banking client is currently seeking a Senior Software Engineer/COBOL Developers with hands-on expertise in FIS Systematics to join a dynamic team. In this role … banking system migrations or upgrades. Familiarity with Agile methodologies. Experience working with global teams. Essential Experience: Client facing, Very Good Communicator Good coding and software development experience Committed to highest quality standards and delivery excellence Natural Leader ...

rapidly scaling fintech start-up looking for a Junior Front End Engineer (1–4 years’ experience) to join their growing team of talented software engineers. This is a fantastic opportunity to work alongside experienced technologists from top tech companies and trading firms, contributing to modern, high-performance software ...

Director - Lead Software Engineer (Java, Equities) Location: London | Division: Investment Banking | Type: Full-time About the Role We are seeking a Director-level Lead Software Engineer to join our Equities Technology team within the Front Office. This is a hands-on, independent contributor role where you will design … order management and execution. Collaborate with front-office stakeholders to understand business requirements and translate them into technical solutions. Ensure best practices in software architecture, performance optimization, and scalability. Mentor junior engineers and contribute to technical strategy while remaining hands-on in coding. Requirements Expert-level Java development skills ...

Role: Staff Software Engineer Location: London – Hybrid (2-3 days per week) Compensation: Up to £180,000 + equity We're working with a fast-growing technology company transforming a highly traditional global industry through advanced AI and computer vision. Their platform turns complex, real-world environments into rich … product is already live across multiple international markets and is backed by a strong group of institutional investors and industry leaders. The opportunity: Staff Software Engineer This is a rare opportunity to join a small, high-calibre engineering group as a founding member of a newly established London ...

Role: Lead Software Engineer, React Native Job Type: Full Time, Permanent Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our innovative application using React Native. Working with a modern JavaScript stack … mobile applications. In this role, you will collaborate closely with our Principal Engineer and the Mobile Apps team members. While this is primarily an engineering role, we are always looking for developers who have a keen eye for product and who can contribute to the development of features ...

Senior Software Engineer – 3D Graphics/Computer Vision London preferred | Full-time | Visa sponsorship available The mission Work at a stealthy 3D/graphics startup that turns real‐world objects into production‐ready, photoreal assets for film, games and real‐time experiences. Think: high‐end material capture and photogrammetry … models and formats into production workflows. Take responsibility for Windows builds, packaging and release quality. What you bring 5+ years of modern C++ engineering in graphics, rendering or other high‐performance areas. Strong Python, used for real production tooling rather than scripts on the side. Solid 3D fundamentals: OpenGL ...

seeking a C++ Engineer to join their equities data team , helping scale the next generation of data-processing systems within a collaborative engineering leadership team. This role ideal for someone who thrives on solving deep engineering challenges in C++. The Role Development for the firm’s equities data … orchestration, data tooling, and process automation. Experience with large-scale financial or market data , particularly equities or other exchange-traded products. Familiarity with modern engineering practices — CI/CD, source control, automated testing, and containerised deployment. Excellent communication, organisational, and problem-solving skills. Contact: For further details ...

About Euphoric Euphoric builds AI-first employee benefits administration software for the world’s largest and most prestigious employers. Born out of Peppy Health — a fast-growing, category-defining Series B startup — we spun out in May 2025 to tackle a far bigger opportunity. Global employers spend … first platform and serve as our resident expert. You won't just be tuning hyperparameters in a notebook; you will be a core software engineer architecting the complex systems that make AI useful in production. In the immediate future, your time will be split between crafting complex AI processing ...