1 to 25 of 111 Senior Software Engineer Jobs in London

Senior Software Engineer - Threat Protection page is loaded Senior Software Engineer - Threat Protection Apply locations Great Britain - London time type Full time posted on Posted 3 Days Ago job requisition id R5674 Senior Software Engineers - Threat Protection The driving force behind the scanning platform at Mimecast Dive into the forefront of innovation … challenges at immense scale, then this is the role for you!" Responsibilities Experience in a complex, multi-disciplinary environment, delivering products within specific time-scales and engaging with multiple senior stakeholders Deliver AWS based Java services through CI/CD and Infrastructure as code using Terraform Deploy, Monitor and analyze AWS usage, providing recommendations for cost optimisations without compromising … certain obligations to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law. Similar Jobs (3) Senior Software Engineer locations Great Britain - London time type Full time posted on Posted 5 Days Ago Senior Software Engineer - Search Platform locations Great Britain More ❯

Senior Software Engineer page is loaded Senior Software Engineerlocations: UK - London (20 Fenchurch)time type: Full timeposted on: Posted Todayjob requisition id: 2025-811 Job Title: Senior Software Engineer (Python) Reporting to: Lead Software Engineer Direct Reports: N/A Position Type: PermanentStanding still is not an option in the … solutions which delight underwritersAbout the OpportunityThe London Market Underwriting & Reinsurance Performance team consists of Actuaries, Reinsurance Specialists and Engineers reporting into the Chief Underwriting Officer (London Market).As a Senior Software Engineer with experience of Agile and DevOps working within the Underwriting Performance Innovation team, you will research, design, test, develop and support software solutions to … an Actuarial Model Management platform, working closely with the central Innovation & Analytics function to define our developing Data Platform and identify opportunities to demonstrate its value.Core Responsibilities Collaborate with software engineers, data engineers, and underwriters to define and deliver the future of Property & Casualty underwriting at TMHCC International Continually improve ways of working, responding to change and maintaining focus More ❯

Senior Software Engineer/Developer (Full Stack JavaScript) London to £100k Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes and delivering CO2 carbon neutral targets … established 10 years, with recent funding of £125 million. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks. As a Senior Software Engineer you'll collaborate as part of an Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and … understanding of web development practices, tools and technologies You enjoy learning and picking up new things You're flexible and able to adapt to changing priorities You have full software development lifecycle experience including CI/CD and testing You're collaborative with Agile team experience, happy to mentor more junior developers You're likely to be degree educated More ❯

Senior Software Engineer I page is loaded Senior Software Engineer I Apply locations London time type Full time posted on Posted Yesterday job requisition id R7649 Company Description We're - you might not know our name, but companies like eBay, ASOS, Klarna, Uber Eats, and Sony do. That moment when you check out online … and our partners. And we need your help. Join us to build the digital economy of tomorrow. Job Description Global payments are complex and ever-evolving. At Checkout our software engineers develop the next-generation payments technologies that enable our Merchants to boost their acceptance rates, cut processing costs, fight fraud, and create cutting edge technology that enables extraordinary … customer experiences. We're looking for Senior Software engineers who bring fresh ideas, have a curious nature and are passionate about working in an Engineering environment which focuses on building products to achieve the company's strategic goals. You'll get to work with teams from across 's portfolio of products and services who all have a real More ❯

Senior Software Engineer/Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Asset Manager with c$3 million under management. As a Senior Software Engineer within the trading … You are collaborative with excellent communication and stakeholder management skills You are degree educated in Computer Science or similar technical discipline What's in it for you: As a Senior Software Engineer/Developer you will receive a competitive package: Salary to £150k Bonus paid every six months based on personal performance (10-25%) Professional development Pension … Health Insurance Gym membership Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Senior Software Engineer/Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from More ❯

Taboola, Connexity, and Shopyourlikes) are constantly iterating on products, solving problems for retailers, content creators & influencers, and publishers, building interest in new solutions. We are actively seeking an experienced Senior Software Engineer for our Skimlinks brand, to help us advance our technology stack and product development endeavours. The Senior Software Engineer is based in … London, reports to the Sr. Principal Software Engineer Team Lead, and is a part of the Skimlink's UK Engineering team. This position is a senior-level role responsible for providing technical leadership, guiding and implementing the architecture and design of complex software systems, and driving innovation by combining strong technical expertise with effective communication and … leadership skills to drive success in software development projects. The position will play a pivotal role in designing, building, and implementing systems across all facets of our intricate platform. From managing high-volume data collection and enrichment to automated analysis, and backend services alongside RESTful APIs, your contributions will be fundamental to our success. Additionally, the Senior Software More ❯

Senior Software Engineer, Pricing and Derived Data Senior Software Engineer, Pricing and Derived Data Job Location London Employment type Regular Department Technology Targeted Start Date Immediate DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value … that matters-it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. We are looking to hire a Senior Software Engineer into the Pricing and Derived Data team. We are responsible for building foundational APIs and data services to price all products and related products that … allowing our users to, for example, ensure responsible allocation of capital across the firm. Our systems are used across the organisation by Trading Desk leads, Global Risk Management, and Senior Leadership. We collect, transform, aggregate and disseminate pricing and related derived data, such as: Commodity Price and Yield Curves - Mark-to-market, and Mark-to-model settlement prices Option More ❯

Senior Software Engineer | Node | TypeScript | React | APIs | Greenfield | AWS | Microservices | £90,000-£95,000 + 10% Discretionary Bonus + Benefits Method Resourcing is thrilled to be partnering with a global leader in the travel services and benefits sector. They're looking for a Senior Software Engineer to drive innovation and drive forward greenfield functionality … as the company dives into AI. The role: As a Senior Engineer, you will join a collaborative, high-impact team where you'll help shape and deliver cutting-edge solutions. This role gives you the chance to design and build cloud-native platforms that leverage AI, automation, and modern architectures at scale. Beyond coding, you'll have a … strong voice in product direction, architectural strategy, and fostering an engineering culture rooted in best practices. If you enjoy creating clean, reliable software while working closely with other skilled engineers, this is an opportunity to make a meaningful impact. Skills & experience we are looking for: Tech Stack Expertise - Skilled in TypeScript (Node.js mainly but also React, this role is More ❯

Senior Full Stack Software Engineer | B-Corp Start-Up | Net-Zero Carbon Up to £100,000 plus stock London - Hybrid (2 days a week in the office) Typescript, Rust & React Senior Full Stack Software Engineer - We are working with an amazing Carbon Neutral, B-Corp certified start-up to find them a Senior Full Stack Software Engineer to join their purposely small, experienced engineering team. They have received over $10m in funding in the last two years and as reach break-even in the original market, they have some exciting tech challenges in scaling their sustainable platform as they look to expand their reach. As a Senior Full Stack … Software Engineer in a start-up your role will be multi-faceted: Designing and building new features to improve the lives of everyone who uses the platform, whether it's fellow employees or customers. Improving the tooling and infrastructure to make it easier to scale. Collaborating with colleagues in engineering and the wider business to innovate and produce More ❯

Senior Software Engineer - Analytics Front Office Senior Software Engineer - Analytics Front Office Job Location London Employment type Regular Department Technology Targeted Start Date Immediate DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and … how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. The UP - Analytics Front Office team is looking for a Senior Software Engineer who relishes working in challenging time-critical environments solving complex problems alongside highly capable peers . Our team operates services providing real-time PnL and … of trading desks each with varying degrees of portfolio and model complexity . While previous experience in the trading and finance industry is beneficial, we're looking for talented software engineers with or without industry-specific expertise . UP - Analytics Front Office primarily operates C# services heavily utilizing RX for LINQ-style composition and asynchronous dispatch. We often reach More ❯

Senior Backend Software Engineer/Developer (Rust HFT) London/WFH to £180k Do you have expertise with backend software engineering within trading/finance environments? You could be progressing your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Senior Backend Software Engineer you will … design and develop backend services for real-time risk, pricing, trading engines and market making systems, working across the full software development lifecycle using Rust. You'll collaborate with a small, talented team, collaboratively problem solving and working on complex and challenging systems with interesting work and huge bonus earning potential. Location/WFH: You'll join the team … in Central London with flexibility to work from home twice a week. About you: You have strong backend OOP, multithreaded software engineering experience You have commercial Rust development experience You have experience of working on high throughput, low latency trading systems You achieved a 2.1 or above in Computer Science from a top tier university You are collaborative and More ❯

Senior Java Software Engineer/Team Lead (FX Trading) London to £135k Do you have advanced Java technical knowledge combined with team leadership skills and a strong knowledge of Capital Markets? You could be progressing your career at the Investment Management arm of a global bank. As a Senior Java Software Engineer/Team … speed You have excellent communication and collaboration skills You are degree educated in Computer Science or similar technical or numerate discipline What's in it for you: As a Senior Java Software Engineer/Team Lead you will receive a competitive Salary to £135k Bonus Pension One day work from home per week Continuous training and career … progression opportunities Apply now to find out more about this Senior Java Software Engineer/Team Lead (OOP Java Algorithm) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will More ❯

Senior Software Engineer, Product Security Engineering page is loaded Senior Software Engineer, Product Security Engineeringlocations: London, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: RThe LSEG DevSecOps Engineering team inside the cyber security division is looking for Senior Software Engineers to build tools and automations to help secure software development for thousands of developers across the group. You will be working as part of a geographically distributed remote team comprising of security engineers and software engineers. Our team's mission is to allow engineers to embed security best practices frictionlessly as part of their day to day work. The ideal candidate will have the following skills: Deep … understanding of cyber security principles, secure software development, and threat modeling Experience conducting security assessments, code reviews, and vulnerability management across diverse technology stacks Experience in building full-stack products (web applications, APIs, CI tooling or low-level software) Hands-on experience with cloud technologies (AWS, GCP, Azure) and containers (Docker, Kubernetes), with a focus on security Familiarity More ❯

Senior Software Engineer Sustainable Cloud Native Platform Distributed Systems Up to £100,000 per annum plus bonus and stock Hybrid in London office Skills: Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed Systems About the Role Are you a Senior Software Engineer with significant cloud/infrastructure experience? Are you interested in joining a … work with top talent and make a real impact on projects? We are partnered with an exciting cloud startup that has received record funding and is looking for innovative Senior Software Engineers to join their ambitious team. With a new CTO experienced in building leading cloud platforms, the team is rapidly growing and aims to attract the best … the world's most accountable and sustainable cloud provider. What We're Looking For Tech-agnostic mindset, with preferable experience in Golang, Rust, or C/C++ Experience in software infrastructure or building cloud-native applications Experience working with high-scale, distributed systems Understanding of systems design and component interactions If this sounds like you, please apply to learn More ❯

Senior Software Engineer - DevX SCAnS (Developer Experience) Location London Business Area Engineering and CTO Ref # Description & Requirements In Bloomberg, the Developer Experience (DevX) group provides services and tooling that empowers over 9,000 engineers with their productivity needs and enables them to write high quality, performant and secure code. What goes into making Bloomberg's software … know if any are defective? How can we protect Bloomberg from malicious actors while still benefiting from open source? These are the questions you'll help us answer! The Software Composition Analysis and Security (SCAnS) team in DevX plays a foundational role in securing Bloomberg's software supply chain (SSC) by enabling engineers to use open source and … third party software safely, in an operationally resilient manner. Our products integrate with build and analysis systems to ensure software component metadata (as SBOMs) is available throughout the SSC to build a software inventory, affording license and vulnerability identification firm-wide. We control the ingress of components to prevent malware from entering the network, which provides us More ❯

Job Title: Senior Software Engineer Reporting to: Lead Engineer Role Purpose: As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯

Job Title: Senior Software Engineer Reporting to: Lead Engineer Role Purpose: As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯

Senior Software Engineer We're looking for an experienced Senior Software Engineer to join our growing IT team in the insurance sector. You'll take the lead in developing scalable, high-quality web and mobile applications using Microsoft technologies (.NET, C#, Blazor), working closely with international and cross-functional teams. As the lead on … Microsoft technologies, you'll help shape the direction of our software solutions while contributing to critical projects across the business. We are looking for someone with strong and confident stakeholder engagement along with technically strong experience. What You'll Do Design, build, and maintain internal and external web/mobile applications (.NET, C#, Blazor). Lead the technical development More ❯

WebMethods Senior Software Engineer Hybrid (2-3dpw Onsite) £70,000 - £78,000 Must hold, or be eligible to obtain, Security Clearance (continuous residency in the UK for the past 5 years, without any single absence of more than 28 days in a row). About the Role Our client is seeking an experienced WebMethods Senior Software Engineer to contribute to the delivery of large-scale, complex, and innovative enterprise digital projects. The work involves agile custom software development and integration at an enterprise scale, using a mix of integration, open-source, and proprietary technologies. Working Model This is a hybrid role. Your working locations will vary depending on project needs and … may include offices, client sites, and your home. Please note this role cannot be carried out fully remotely. Responsibilities Take a senior engineering role focused on building seamless integration using the webMethods Hybrid Integration solution for both cloud and on-premise systems (minimum 5-8 years of relevant experience). Lead and deliver development projects as a Development Lead. More ❯

Title : Senior Software Engineer (Driver/API) Company : HPC R&D Location : London (mostly remote) Pay : Up to £160,000 + bonus and benefits Company : An advanced HPC R&D firm, looking to expand their GPU Driver team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get … is significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position. You will be a significant hire spearheading much of their 2025 development. Much of the team will be built around you, and significant hires … and maintain their GPU driver stack, focusing on the performance and efficiency of graphics and compute workloads on cutting-edge GPU architectures. About you: 6 years+ as a Driver Engineer Strong C++ or C programming skills Experience with OpenCL or Vulkan Strong knowledge of GPU development Full details are available. Please don't hesitate to get in touch with More ❯

Title : Senior Software Engineer (Compilers) Company : HPC R&D Location : London (primarily remote) Pay : Up to £160,000 + bonus + benefits Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get more flexibility … is significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position with an emphasis on AI Compiler development. You will be a significant hire and will own much of the development of a cutting-edge … the team to support this role. Mostly LLVM based, it is important you also have experience working with GPUs to an extent. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with LLVM, MLIR, Triton or other compilers Experience with GPU architectures Full details are available. Please don't hesitate to get in touch with More ❯

Title : Senior Software Engineer (Compilers) Company : HPC R&D Location : London (primarily remote) Pay : Up to £160,000 + bonus + benefits Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get more flexibility … is significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position with an emphasis on AI Compiler development. You will be a significant hire and will own much of the development of a cutting-edge … the team to support this role. Mostly LLVM based, it is important you also have experience working with GPUs to an extent. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with LLVM, MLIR, Triton or other compilers Experience with GPU architectures Full details are available. Please don't hesitate to get in touch with More ❯

Job Description - Senior Software Engineer (16063) Overview easyJet holidays is the UK's fastest growing tour operator, with a mission to provide brilliant holidays at unbeatable prices in more than 100 destinations across Europe. We do this by combining easyJet's vast flight network with more than 5000 handpicked hotels and best-in-class technology to provide … our website and all proprietary software. This tight-knit and fast-moving team faces significant pressure but is central to helping the company achieve its ambitious goals. Role The Senior Software Engineer, you'll work closely with our development teams to create and support both new and existing solutions. This role involves applying our quality standards to … all projects, supporting development teams by designing and documenting technical solutions, providing technical expertise, and performing code reviews to ensure consistency with our standards. The Senior Developer will also stay updated with current software development trends and innovations that could benefit easyJet's strategy. What you'll be doing In this role, you'll support and guide the More ❯

new markets, and we plan to scale up our tech team with the very best engineers to supercharge our growth. We are looking for a bright, driven, full-stack Senior Software Engineer who is excited about solving complex problems and building scalable platforms. The role As a Senior Software Engineer, you will: Understand complex … business problems then propose and implement technical solutions Have input into the architecture, working closely with the Head of Technology and other senior team members Work with other engineers and the business to improve user experiences Bring your experience and enthusiasm to our engineering culture Promote excellence with technical mentoring, feedback, and code reviews Participate in planning sessions, retrospectives More ❯

worth it. Channeling your inner grit will accelerate your growth, help us win as a team, and create unforgettable moments for our customers. The Crown Is Yours As a Senior Software Engineer, you'll be part of one of our multidisciplinary teams where you'll work closely with designers, product managers, and data analysts. You'll be … contributor to our processes and decision-making so when we build new features, we can ensure scalability and availability of the entire platform. What you'll do as a Senior Software Engineer You will be developing systems and APIs that power a rich set of applications used by a large and passionate group of users every day. … looking for a team that can pivot at a moment's notice. We're constantly growing and forming new teams; you will be able to lead either as an engineer or transition into a manager role. What you'll bring Ideally, you have 4+ years of development experience in object-oriented programming using languages such as C# or Java. More ❯