201 to 225 of 668 Senior Software Engineer Jobs in London

environments. Why we're hiring: We’re entering a phase of rapid product and infrastructure scaling. To support this growth, we’re hiring a Senior Software Engineer who will help define the technical foundations of our platform, shaping everything from backend architecture to product performance and developer … feature that provides clear customer value Collaborate cross‐functionally with ML and product teams to turn complex ideas into working software Support and mentor junior engineers through code reviews, pairing, and guidance Month 6 – Drive Impact Demonstrate strong technical and product judgment, independently shaping and improving complex systems Take ...

that organisations rely on when geopolitical uncertainty becomes an opportunity or a strategic risk. More at extrac.ai. The Role We are looking for a Senior Software Engineer to join ExTrac's engineering team to help build and operate the services and pipelines the platform runs on. ExTrac … project, leaving reviews people learn from, and writing things down for the next person. You want to work on things that matter. Our software sits underneath decisions taken by governments, defence organisations, and institutions operating where being wrong or late carries real consequences. Where this role can take ...

Web3 finance for everyone. To learn more about Uphold, please visit https://uphold.com. Job Summary We are looking for a finance‐oriented Senior Software Engineer to join our Trading Strategies team. This role is at the intersection of quantitative finance and software engineering, where … will design, implement and maintain the pricing models and automated trading strategies that drive our profitability. This is a unique opportunity to apply your software and quantitative skills to solve complex financial problems in the dynamic world of cryptocurrency markets. If you are excited by algorithmic strategy development, market ...

Weekday's clients Min Experience: 6 years Location: London JobType: full-time We are seeking a highly skilled and experienced Senior Software Engineer with deep expertise in Python to join our growing engineering team. In this role, you will be responsible for designing, developing, and maintaining scalable … junior engineers. Requirements Key Responsibilities Design, develop, and maintain robust, scalable backend systems and APIs using Python. Lead end-to-end development of complex software solutions, from concept to deployment. Write clean, efficient, and reusable code following best practices and coding standards. Collaborate with cross-functional teams including product ...

World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Substrate … clusters — from on-prem to the major cloud hyperscalers, whether they are internet-connected or air-gapped, small hardware footprint or large. As a Senior Software Engineer on Substrate, you will design and build Palantir’s managed Kubernetes product offerings across all these environments. You and your ...

David A. Steinberg and John Sculley and is headquartered in New York City with offices around the world. The Role As a Senior Software Engineer you will provide technical leadership to the group responsible for architecting, developing, and owning the Addressability part of the Zeta Marketing Platform. … projects Participating in on‐call rotation (be available by phone or email in case something goes wrong) Desired Characteristics Minimum 4 years of software engineering experience Undergraduate degree in Computer Science (or related field) with English primary instruction (strongly desired) 2+ years of experience/fluency in Scala/ ...

Rippling is seeking a Senior Software Engineer for the Global Payroll team. You will help advance our full‐service payroll platform, handling configuration and calculations for hundreds of thousands of employees. You will own initiatives, partner with design/product, and rearchitect components to scale. Requires 6+ ...

Longshot Systems we build advanced platforms for sports betting analytics and trading. We’re looking for a Senior Software Engineer to join the team that owns and develops our trading platform. Longshot is a small, focused company and so the role suits someone who can architect ...

seeking a Senior Software Engineer - Research Technology in London to design and operate compute-intensive analytics platforms. You will work on ingest, simulation, and research tooling in a fast-paced environment with onboarding support for trading contexts. Responsibilities include building scalable data systems, optimizing performance, and mentoring … junior teammates while delivering reliable software for researchers and trading teams. #J-18808-Ljbffr ...

today and is transforming how they can interact with markets tomorrow. For more information, visit https://the company.io. The Role As a Senior Software Engineer on Clear Street's Payments team, you'll play a key role in scaling and modernising our rapidly evolving global … processes, and offer our customers a smooth payment experience, helping to shape the future of the Clear Street financial ecosystem. What You'll Do Engineer highly reliable, API-driven payment systems that streamline operations and support our global expansion. Translate product and design requirements into clean, maintainable and well ...

travel experiences. We're on an exciting journey of growth and transformation – we're going places. The opportunity We're looking for a Senior Software Engineer to help shape one of the most critical platforms within our Loyalty division. You'll join the team responsible … Boot and AWS, while having the opportunity to influence technical direction and how the team builds and operates software. This is a hands‐on senior engineering role where you'll own solutions through to production, contribute to architectural decisions, mentor other engineers and help us continuously raise ...

Join Powster -- an award-winning (FWA, Awwwards, Clios, Webby) creative studio in central London. We're looking for a Senior Creative Software Engineer to lead WebGL activations and interactive web experiences for clients such as Universal Pictures, Netflix, Amazon Prime Video, Paramount Pictures, Disney and many more … keen on keeping up-to-date with modern coding practices. Proven creative development experience : You have a minimum of 4+ years as a Frontend Software Engineer leading and working within WebGL development. Tech Leadership & Project Ownership: Full ownership of the software development lifecycle (SDLC) from Creative Ideation ...

Mondrian Alpha is seeking a Senior Software Engineer to join a high-performing team. You will own projects from design through deployment, building modern business systems, cloud data platforms, APIs, automation and AI-enabled solutions that support the investment platform. You will work directly with investment, finance … operations teams to deliver impactful software, leveraging AI-assisted engineering and modern tooling. #J-18808-Ljbffr ...

London, United KingdomDev/Full-time/HybridA World-Changing CompanyPalantir builds the world's leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing … clusters — from on-prem to the major cloud hyperscalers, whether they are internet-connected or air-gapped, small hardware footprint or large. As a Senior Software Engineer on Substrate, you will design and build Palantir's managed Kubernetes product offerings across all these environments. You and your ...

sites. We can both help traders make decisions about how to trade, and disaggregate said trades into per-asset dispatch decisions. This is production software with genuine commercial and operational impact. It not only support key traders' workflows, but also it drives physical asset dispatch and the delivery … work with data scientists and traders to turn prototypes into reliable, well tested services they can trust. The Role We’re looking for a Senior Software Engineer to join Humboldt and help shape Asset Backed Trading as it grows into new countries and capabilities. You will work ...

CoreWeave in London seeks a Senior Software Engineer, Inference, to own architectural designs and raise engineering standards across multiple services. You will partner with product, orchestration, and hardware teams to evolve a Kubernetes-native inference platform while meeting strict P99 SLAs at scale. You will lead design ...

Senior Software EngineerWebex Real-time Media Engineering GroupMeet the TeamCisco's Webex Real-time Media Engineering Group is redefining the future of collaboration. We're building a world where people connect effortlessly to enjoy modern, uncompromised collaboration across every room, desk, pocket, and application. Our technology powers industry … programming experience in C++/C#, and the willingness to learn new languages quickly. Experience with Linux development: Experience with using Linux and developing software running on Linux. Experience with virtualisation and containers: An understanding of virtual machines and containerisation technologies, and experience with Docker. Preferred Qualifications ...

Legora is redefining how legal work is done. As a Senior Software Engineer, you will build, review and ship products that help legal professionals worldwide, with ownership across the stack. You will work with TypeScript, React, Node.js, AWS, Azure and Kubernetes, review code, mentor juniors, and drive ...

global payments technology company in Greater London is looking for a Senior Software Engineer to develop next-generation payment technologies. The role involves leading projects, designing scalable systems, and collaborating with cross-functional teams. Ideal candidates will possess a Bachelor's or Master's degree in Computer ...

it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. DRW has an opening for a Senior Software Engineer focused on digital assets. The team builds and operates systems that move and safeguard cryptoassets across the firm — including treasury automation, wallet … digital asset operations and related business partners. Partnering with those teams to turn ambiguous business problems into clear technical plans and shipped software. Owning software end-to-end after it ships — we run what we build (deploy, operate, on-call); we don’t hand systems off to a separate ...

ideas from research to production with less friction. Through our merger with Voltage Park, a neocloud and AI Factory, Lightning AI combines developer-first software with cost-efficient, large-scale compute. Teams get the tools they need for experimentation, training, and production inference, with security, observability, and control built … iterating on experiments, this team creates the infrastructure and developer experience that powers every stage of the AI lifecycle. We're looking for a Senior Software Engineer to help design and scale the backend systems that make AI development faster, more reliable, and easier to use. ...

Financial Times as one of Europe's fastest-growing companies for two consecutive years—and a UK Best Employer for 2026. As a Senior Software Engineer I at Thought Machine, you will own and deliver highly complex, end-to-end engineering work items. You will look beyond … your team, solving ambiguous problems, guiding less experienced engineers, and actively shaping our technical and product roadmaps. This is a role for an engineer who values clean, maintainable systems, embraces an egoless approach to collaboration, and is driven to deliver robust solutions to production. What You’ll Do Technical ...

prominent financial technology firm in Greater London is looking for a Senior Software Engineer to design and build resilient, event-driven systems. You'll engage across the engineering lifecycle while using modern AI-assisted tools. Candidates should have over 5 years of experience in software development ...

Loyalty in London is seeking a Senior Software Engineer to shape our Pricing Service, the engine behind Avios rewards. You’ll design, build and operate cloud-native services using Java, Spring Boot and AWS, influencing technical direction while mentoring peers. You’ll work in a collaborative product ...

cutting-edge materials technology company in London is seeking a Senior Software Engineer to define the technical foundations of their AI-driven platform. This hands-on role involves collaboration with scientists and engineers, focusing on backend architecture and product performance. The ideal candidate has 5+ years … experience in software engineering, strong skills in TypeScript, Docker, and Kubernetes, and a product-oriented mindset. Competitive salary and benefits offered. #J-18808-Ljbffr ...