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Senior Fullstack Software Engineer jobs in London· Page 4

Results 61–80 of 3,984 for “Senior Fullstack Software Engineer” in London.

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Ripple Labs Inc. logo
Full-time|On-site|London, UK

At Ripple, we are on a mission to transform how value is transferred globally, akin to the speed and ease of information today. Our innovative cryptocurrency solutions for financial institutions, businesses, governments, and developers are revolutionizing the financial landscape, fostering economic equality and opportunities worldwide. Join us in doing the m…

Feb 27, 2026
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Socure logo
Full-time|On-site|London, UK

As a Senior Manager of Software Engineering at Socure, you'll lead a dynamic team of engineers to develop innovative software solutions that enhance our identity verification platform. You will be instrumental in setting the technical direction, driving project timelines, and ensuring the successful delivery of high-quality software products. Your leadership will foster a culture of collaboration, agility, and excellence.

Mar 25, 2026
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PhysicsX logo
Full-time|On-site|London

Join our dynamic team at PhysicsX as a Senior Software Engineer specializing in Platform Runtime. In this pivotal role, you will lead the design and implementation of our software platform, ensuring high performance and scalability. Collaborate with cross-functional teams to create innovative solutions that drive the future of technology.

Mar 10, 2026
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unlikelyai logo
Full-time|On-site|London

Join our innovative team at unlikelyai as a Senior Software Engineer, where you will have the opportunity to develop cutting-edge solutions that push the boundaries of artificial intelligence. In this role, you will collaborate with a talented group of professionals, leveraging your expertise to optimize our software development processes and deliver high-quality products.

Apr 1, 2026
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Peregrine Technologies logo
Full-time|On-site|London, UK

Join Peregrine Technologies, a forward-thinking company backed by top Silicon Valley investors, as we empower public safety organizations, government agencies, and the private sector to tackle societal challenges with groundbreaking speed and precision. Our AI-driven platform transforms isolated data into actionable intelligence, enabling swift, informed decisions that enhance outcomes at every touchpoint. With a client base spanning over 30 states and two countries, serving more than 125 million people, we are on an exciting trajectory of growth into enterprise and international markets.TeamOur engineering team prioritizes empathy as the key to developing effective solutions. Understanding user interactions with our product is crucial to achieving the best outcomes. As a part of our Foundations team, you will collaborate with detail-oriented engineers focused on driving innovation and enhancing performance through technical excellence. We are responsible for maintaining the performance of our mission-critical infrastructure and spearheading high-stakes initiatives that unlock unprecedented capabilities.We emphasize both ownership and teamwork; you will have full accountability for major features while working closely with fellow engineers to see them through to completion. We believe that humility and empathy are vital for developing the right solutions, and you will engage directly with our deployment team and users to iterate and resolve their challenges. Creativity and perseverance are essential as we strive to execute our vision.RoleAs our first Software Engineer in the UK, you will have significant ownership across our technology stack, making impactful decisions that will shape our future for years to come. You will redefine the capabilities of our data platform by developing innovative features that enhance user experiences and operational efficiencies.

Feb 4, 2026
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Wise logo
Full-time|On-site|London

Join Wise as a Senior Software Engineer I focused on reliability! In this pivotal role, you will be at the forefront of ensuring our systems are robust, scalable, and efficient. You will collaborate with cross-functional teams to identify and resolve issues, enhance system performance, and contribute to our mission of making international money transfers easy and affordable. If you are passionate about technology and thrive in a dynamic environment, we want to hear from you!

May 1, 2026
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8th Light, Inc. logo
Full-time|Hybrid|London, England, United Kingdom

Senior Software EngineerLocation: Waterloo, London, England, UK | Hybrid (1 day per week in office)About UsAt 8th Light, we breathe life into exceptional ideas. Established in 2006 and based in Chicago, we are at the forefront of technology solutions, partnering with organizations to tackle significant challenges and foster sustainable growth. Whether collaborating with startups or global enterprises, we excel in optimizing our clients' digital products through innovative product strategies, experiential design, AI solutions, and profound engineering expertise.Our unwavering commitment to quality ensures that we deliver solutions we take pride in, while our innate curiosity fuels innovation and groundbreaking thinking. At 8th Light, we cultivate an environment that champions continuous learning, empowering our growth through mentorship and hands-on projects. We promote a transparent and collaborative culture rooted in trust and honesty, believing that true success is reflected in the outcomes we create for our clients.If you are invigorated by this type of work and resonate with our values, you have found your ideal workplace.

May 1, 2026
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H Company logo
Full-Time|On-site|London

About H:At H, we are at the forefront of revolutionizing superintelligence through agentic AI. Our mission is to automate intricate, multi-step tasks that are traditionally handled by humans, thereby unlocking the full potential of human capability.We are actively recruiting top-tier AI professionals who are equally committed to advancing innovative agentic technologies as they are to ensuring safety and responsibility in their application. Our culture fosters openness, continuous learning, and collaboration, where every voice is valued.About the Team: Our Product Engineering team plays a pivotal role in developing H's Enterprise Platform, delivering essential tools and services that empower our customers to address critical operational challenges. This platform encompasses vital services such as executing computer-use agents at scale, orchestrating complex workflows, and providing a comprehensive suite for observability, troubleshooting, and evaluations. Our team serves as the bridge between cutting-edge AI research and practical, real-world applications, working in close partnership with every sector of our organization.Key Responsibilities:Architect, design, and steer the long-term engineering roadmap and technical blueprint.Create and sustain robust, high-performance, and scalable systems.Mentor and inspire engineers across diverse teams, promoting a culture of technical excellence.Perform comprehensive code and design reviews to uphold quality and security standards.Collaborate with Research, Product, and various stakeholders to deliver impactful and innovative solutions.Enhance system reliability, scalability, and observability continuously.Establish and implement engineering standards, tools, and processes for optimal efficiency.Promote technical innovation while proactively addressing any technical debt.Requirements:Technical Skills:Prior experience in a Senior Software Engineer role with a proven record of responsibilities and accomplishments.Over 5 years of strong experience in backend development (Python and Golang preferred).Extensive experience with distributed systems or cloud computing, ideally in AWS.Proficient in building and deploying end-to-end solutions.

Jan 16, 2026
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physicsx logo
Full-time|On-site|London

Join our dynamic team at physicsx as a Senior Software Engineer focused on Platform Operations. In this role, you will be instrumental in enhancing our platform's performance and reliability, ensuring exceptional user experiences. You will collaborate with cross-functional teams to design, develop, and implement robust software solutions that meet the evolving needs of our users.

Mar 16, 2026
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Faculty logo
Full-time|On-site|London

Join our innovative team at Faculty as a Senior Software Engineer. In this role, you will leverage your technical expertise to design, develop, and maintain software solutions that drive our mission forward. You will collaborate with cross-functional teams to deliver high-quality products that meet the needs of our clients.The ideal candidate is passionate about technology, possesses strong problem-solving skills, and has a proven track record in software engineering. If you thrive in a fast-paced environment and want to make a significant impact, we want to hear from you!

Mar 25, 2026
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Complexio logo
Full-time|Remote|Remote — London, England, United Kingdom

At Complexio, our innovative Foundational AI technology automates business processes by effectively analyzing both structured and unstructured data from across the organization. By employing proprietary algorithms and models, we gain profound insights into human interaction with data, enabling us to replicate and enhance these actions autonomously.Complexio is a collaborative venture involving Hafnia, Símbolo, and partners such as Marfin Management, C Transport Maritime, Trans Sea Transport, and BW Epic Kosan.As a Senior Software Engineer, you will play a pivotal role in our team, crafting cutting-edge applications that harness AI to improve user experiences and optimize communication. Collaborating with a diverse group of Data Scientists, DevOps specialists, Product Managers, and Business Analysts, you will significantly contribute to the design and implementation of specialized AI assistant technologies.

Sep 24, 2025
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Meridial logo
Full-time|On-site|London

Meridial is a not-for-profit Focused Research Organisation (FRO) working to integrate connectomics into the living brain. The team is building a platform for mapping functional neural circuitry at synapse-level resolution in preclinical models. This work aims to improve drug development for Central Nervous System disorders. Meridial operates within the Convergent Research Ecosystem and receives support from the Advanced Research and Invention Agency (ARIA). Role overview The Senior Software Engineer will lead development and maintenance of software systems for Meridial’s multi-photon microscopy platform. This includes responsibility for hardware control, data acquisition, user interface design, and analysis pipelines. The role involves close collaboration with FPGA engineers and experimental neuroscientists, working at the intersection of software engineering and neuroscience research. Key responsibilities Maintain, debug, and enhance the current MATLAB-based microscope control software Add new experimental features and optimize data handling processes Develop real-time analysis modules Quickly understand and work with legacy systems, often in partnership with external contractors Contribute to the long-term evolution of the software stack, including a potential transition from MATLAB to open-source technologies Support the development of future data architecture, offline analysis pipelines, and web portals as the organization grows Collaboration and growth This position reports to the Director of Engineering. The role offers clear progression toward technical leadership within the software team as Meridial expands.

Apr 29, 2026
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Strideup logo
Full-time|On-site|London, England, United Kingdom

Strideup is seeking a Senior Software Engineer to join the team in London. This role centers on developing and enhancing software products that align with business objectives and provide a high-quality user experience. Day-to-day work is hands-on and involves working closely with colleagues from various departments. Responsibilities Design and build software solutions for both new initiatives and ongoing projects Collaborate with team members from different backgrounds to deliver scalable applications Use programming expertise and software design principles to address technical challenges Take part in project planning and contribute to the successful rollout of new features Requirements Strong programming background and experience in software design Skilled at solving complex technical problems Comfortable working as part of a cross-functional team This position is located in London, England, United Kingdom.

Apr 21, 2026
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Zopa logo
Full-time|On-site|London

About Us Welcome to Zopa! Since our inception in 2005, we have pioneered the peer-to-peer lending landscape, and in 2020, we proudly launched Zopa Bank. Our mission is to revolutionize the banking experience by actively listening to our customers and addressing their financial concerns. We are committed to creating a banking ecosystem that prioritizes our customers’ needs, enabling them to reach their financial aspirations. Discover more about our innovative services at Zopa.com!Our accolades speak volumes; we not only receive industry awards but have also been recognized as one of the top three Most Loved Workplaces in the UK.If you are passionate about tackling unconventional challenges, thinking outside the box, and making a significant impact in the financial space, Zopa is the place for you. Join us and be part of something remarkable! Follow our journey on Instagram @zopalife.Your Engineering ChallengeAs a Senior Software Engineer, you won't just be writing code; you'll be tackling real financial challenges faced by millions. You will design and implement distributed systems that handle thousands of transactions each day, develop robust services to manage financial data, and simplify complex financial products to enhance user experience.

Aug 14, 2025
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Anthropic logo
Full-time|On-site|London, UK

Join Anthropic as a Senior Software Engineer specializing in Inference, where you will develop cutting-edge machine learning systems and inference algorithms. You will play a crucial role in enhancing our AI products and ensuring they are reliable and efficient.

Mar 12, 2026
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Multiverse logo
Full-time|On-site|London

Multiverse delivers upskilling programs in AI, data, and technology, partnering with more than 1,500 companies. Apprentices at Multiverse have generated over $2 billion in ROI for their employers. The company focuses on driving measurable productivity and performance improvements across industries. In June 2022, Multiverse raised $220 million in Series D funding, reaching a $1.7 billion valuation and becoming the UK’s first EdTech unicorn. With a team of over 800 employees, Multiverse continues to grow its impact in technology education. Role overview This Senior Software Engineer position is part of the Engineering team and supports Multiverse’s mission to prepare the workforce for an AI-driven future. The role influences technical direction and delivers solutions that reach thousands of learners and employers. What you will do Work in a domain-focused team to deepen understanding of Multiverse’s products and platforms. Design and build scalable, user-focused systems that integrate with the core learning platform. Contribute to a collaborative engineering culture, sharing knowledge and participating in weekly sessions. Use dedicated ‘10% time’ for experimentation and innovation, supporting ongoing improvement. Atlas at Multiverse Atlas is the flagship AI product, embedded in the main learning platform. It acts as a 24/7 AI guide, providing personalized, context-aware support to thousands of users daily. Atlas is central to Multiverse’s approach to AI-powered education. The Atlas team The Atlas team operates as an agile, fast-growing group within Multiverse. Engineers here help define technical strategy, architecture, and operational practices. The team values engineering excellence, rapid innovation, and building sustainable systems for the future of AI in education.

Apr 22, 2026
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physicsx logo
Full-time|On-site|London

Join physicsx as a Senior Software Engineer specializing in Forward Deployed Applications. In this role, you will leverage your expertise in advanced software development to create robust applications that meet the unique needs of our clients. You will work in a dynamic environment that fosters innovation and collaboration, playing a key role in shaping the future of our technology solutions.

Mar 9, 2026
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Dialpad logo
Full-time|Hybrid|London, UK

About DialpadDialpad is an innovative leader in AI-driven customer communication solutions, revolutionizing the way businesses engage with their clientele. Trusted by over 50,000 organizations worldwide, including renowned names like Netflix, RE/MAX, Uber, Randstad, and Tractor Supply, Dialpad empowers companies to enhance customer relationships through real-time, AI-powered insights. Explore more at dialpad.com.Join Our TeamAt Dialpad, you will collaborate with a dynamic team dedicated to our mission of ensuring the success of our customers and their employees. Every conversation is significant, and our platform elevates each interaction with real-time insights and automation for our clients.We embrace continuous growth, allowing every team member to leverage cutting-edge AI to refine our platform and enhance their own skills. We seek individuals who not only meet our high expectations but exceed them. Our ambitious goals require a team that operates at peak performance, and we look for candidates who embody the qualities essential to our success: Resourceful, Inquisitive, Positive, Tenacious, and Compassionate.Your RoleWe are on the lookout for a dedicated and skilled Senior Software Engineer who is enthusiastic about developing high-quality, scalable web and desktop native applications utilizing modern frontend and backend technologies. You will take ownership of significant features from start to finish, overcome technical challenges, and contribute to the team's growth by mentoring junior engineers. Collaborating with fellow engineers, you will guide projects to deliver major features, while working closely with Product Managers to advocate for technical initiatives within the team.Reporting StructureThis position reports directly to our Engineering Manager located in London. We are looking for someone to join our team in our London office. Please note, this is a hybrid role, with an expectation to be in the office 2-3 times per week.

Feb 25, 2026
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Orbital logo
Full-time|$60M/yr - $60M/yr|On-site|London

Embark on an exciting journey with us as we aim to transform real estate transactions into a seamless, swift, and intelligent process. The real estate market, being the largest asset class globally, still relies heavily on outdated and manual legal procedures. Legal professionals find themselves wading through tedious documents, while clients expect quicker and more transparent due diligence. Enter Orbital Copilot, our AI-powered assistant tailored for commercial real estate law. Created in collaboration with experienced real estate lawyers, it enhances complex due diligence processes by up to 70%, all while maintaining legal-grade accuracy. With a recent infusion of $60 million in Series B funding, we are poised for rapid expansion in the UK and US markets. Leading firms like Goodwin and BCLP trust us to eliminate redundant tasks, empowering legal teams to concentrate on delivering expert legal advice, exceptional client service, and closing deals more efficiently. Joining Orbital means becoming part of a dynamic team that is reshaping the future of real estate transactions—where speed, collaboration, and the ability to make a significant impact from day one are paramount.Your RoleAs a Senior Software Engineer, you will create innovative tools that revolutionize the transfer of the world’s largest asset class. We are shifting property transactions from manual document reviews to an automated AI solution that operates with the mindset of a real estate lawyer.Your contribution will not be limited to executing builds; you will leverage your expertise to guide product development and lay the groundwork for our next phase of growth, offering you real influence over our creations.Key ResponsibilitiesDevelop and deploy production software, transforming concepts into dependable customer-facing features.Collaborate with a close-knit team of engineers to design and implement new functionalities.Utilize AI coding agents to generate, iterate, and refine high-quality production code.Engage with a technology stack that typically includes TypeScript, React, PostgreSQL, and Python, while reviewing and guiding code produced by AI agents.Contribute to technical design and architecture decisions.

Mar 12, 2026
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Deliveroo logo
Full-time|On-site|London - The River Building HQ

As a Senior Software Engineer specializing in Proactive Security at Deliveroo, you will play a crucial role in safeguarding our platform against emerging threats. You will collaborate with cross-functional teams to design and implement robust security solutions that protect customer data and ensure the integrity of our systems.Your expertise in software development and security practices will be instrumental in identifying vulnerabilities and enhancing our security posture. This role will challenge you to think critically and innovate solutions in a fast-paced environment.

Mar 23, 2026

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