1 to 25 of 1,113 Senior Software Engineer Jobs in London

Social network you want to login/join with: Senior Software Engineer – Quant Full Stack & Infrastructure (Team Lead), london col-narrow-left Client: Trireme Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 05.05.2025 Expiry Date: 19.06.2025 col-wide Job Description: About the Role: We are seeking … a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development , to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems and developer tooling across cloud-native … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering teams, and has built and maintained robust trading systems … Collaborate with quant researchers, traders, and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and Git-based workflows. Own deployment … internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with More ❯

Senior Software Engineer/Dev Team Lead - Remote (UK based) Posted: May 2, 2025 Company name: NewsNow Location: London (remote) Country: United Kingdom Pay rate: £90,000 to £100,000 plus on-call bonus Poster represents: an employer Terms of employment: Salaried employee Hours: Full time Onsite: no Description: Salary: £90k-100k plus on-call bonus Benefits … NewsNow has since become a global top 50 news website with millions of loyal users who discover news from thousands of publishers. We are looking for a fully-remote Senior Software Engineer/Dev Team Lead to take overall day-to-day operational responsibility for uptime of the NewsNow platform and for leading our small dev team … rest as needed: • Distributed or large-scale systems • MySQL/SQL database design, query optimisation and admin • Web development in HTML, CSS, JavaScript, Vue/React • Apache web server software and related modules • Cloud platforms and concepts (AWS, Google Cloud, Azure) • Setup, testing and administration of CI/CD pipelines • Networking and firewalling • Natural language processing Responsibilities Leading, driving More ❯

Join to apply for the Senior Software Engineer role at Jet2.com and Jet2holidays Join to apply for the Senior Software Engineer role at Jet2.com and Jet2holidays Jet2.com and Jet2holidays are looking for a Senior Software Engineer to join our fast-moving and growing software development team. This is an exciting … our business and our customers. We have several roles within our wide range of scrum teams and are looking for passionate, technical people to join our team. As our Senior Software Engineer , you’ll have access to a wide range of benefits including: Remote working available Access to a generous discretionary profit share scheme Colleague discounts on … Jet2holidays and Jet2.com flights What You’ll Be Doing As a Senior Software Engineer , you will be joining a fast-paced scrum team, made up of a lead engineer, software engineers, automation and manual test engineers, product owners and business analysts. You will: Deliver systems that improve the experience of our customers and business users. More ❯

improve these actions independently. Complexio is a joint venture between Hafnia and Símbolo, in partnership with Marfin Management, C Transport Maritime, Trans Sea Transport, and BW Epic Kosan. Position: Senior Software Engineer As a Senior Software Engineer with broad expertise, you will be a vital part of our team, developing innovative applications that leverage … Key Qualifications: Excellent problem-solving and technical skills. Strong communication and collaboration skills, with the ability to work in a team. Interest and experience in working on early-stage software and a wide range of tasks. Proven experience using technology and how it helped you build a lasting product. Requirements: Preferred M.Sc or Ph.D. degree in Computer Science or … a related field. 7+ years of experience in software development. Work experience using both compiled languages (Rust, OCaml, Golang, Java, C#) or dynamic languages (JavaScript, Python, Ruby). Experience building web applications or desktop application technologies such as Electron, Tauri, React, or Vue.js. Familiarity with CI/CD principles and technologies, including experience with GitHub Actions or similar. Experience More ❯

of driven talented people from over twenty different countries, speaking multiple languages, with a physical footprint in Africa, Europe, and Latin America. The role: We are seeking a skilled Senior Full Stack Software Engineer who is proficient in both frontend and backend development. The ideal candidate will be responsible for designing, developing, and maintaining our platform and … and functionality of our applications and a strong understanding that our customers are the ultimate beneficiary of well built, scalable and working software. Key Responsibilities: Design, develop, and maintain software systems using modern frameworks and technologies. Collaborate with cross-functional teams to define, design, and ship new features. Write clean, maintainable, and efficient code. Implement responsive design principles to … write and understand design documentation using C4, sequence diagrams and workflows. Excellent problem-solving skills and attention to detail. Solid understanding of logging, monitoring and observability to understand if software is functioning as required. Strong communication and teamwork skills. Preferred Skills: Experience with cloud platforms e.g., AWS, Azure, Google Cloud. Knowledge of DevOps practices and CI/CD pipelines. More ❯

Senior Software Engineer - Cloud Services - Salary £70-75k per annum At OQC , we’re building the future of quantum computing — and no, it’s not just sci-fi anymore. While our quantum hardware gets plenty of attention (it does look cool), there’s groundbreaking software making it all possible. As a Senior Software Engineer, you’ll be right at the heart of it. You’re a seasoned software professional, ideally with a background in computer science or a related field, who thrives on turning cutting-edge science into real-world products. You’ll work alongside scientists and engineers to solve unique challenges in quantum computing, helping to shape our QCaaS … development projects — setting priorities, managing dependencies, and seeing work through from design to deployment. You’ll be; Driving forward development standards and prioritizing best coding practices including promotion of “Software Craftmanship” at OQC Gather requirements, propose solutions, build and test prototypes through to production. Design approaches that weigh trade-offs between performance, maintainability, and scalability. Ensure your work is More ❯

Join to apply for the Senior Software Engineer in Test (SDET) role at Hargreaves Lansdown Join to apply for the Senior Software Engineer in Test (SDET) role at Hargreaves Lansdown This range is provided by Hargreaves Lansdown. Your actual pay will be based on your skills and experience — talk with your recruiter to learn … sector. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing As a Senior Software Developer in Test (SSDET) at HL, you will play a crucial role in building market-leading solutions for our clients. You will: Test Automation Development : Design, develop … of traffic. Implement security testing practices to identify and mitigate vulnerabilities. Develop functional resilience strategies such as chaos engineering. Quality Assurance : Support the team in conducting thorough testing of software applications, including unit, integration, system, and acceptance tests. Collaborate with developers to debug and resolve complex issues, including fixing bugs. Test Planning and Execution : Translate product requirements into test More ❯

Kinesis, Node.js, YAML Frontend: React/Next.js Programming: TypeScript; JavaScript, Python Infrastructure: Terraform, GitHub CI/CD pipelines Responsibilities Provide technical leadership and mentorship to your team. As a Senior Full-stack Software Engineer, you will be responsible for guiding and developing the skills of junior engineers. Lead technical decisions and design for your team. You will … of technical documentation and standards. ABOUT YOU Qualifications Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field, or equivalent experience. Proven experience as a Senior Full Stack Developer or similar role with a strong portfolio of projects. Expertise in Node.js and AWS Lambda for serverless backend services. Proficiency in React with Next.js for frontend More ❯

Please do not contact the recruiter directly. About the Role: Grade Level (for internal use): 10 The Team: S&P Global Ratings is looking for a Sr. Full Stack Engineer to join Structured Finance Value Stream. This team, who has a broad and expert knowledge on Ratings organization's data domains, technology stacks and architectural patterns, fosters knowledge sharing … part of a unique opportunity to build and evolve S&P Ratings next gen analytics platform. Responsibilities and Impact: We are looking for a self-motivated, enthusiastic, and passionate software engineer to develop technology solutions for S&P global Ratings product. The ideal candidate thrives in a highly technical role and will design and develop software using … Interface design & development using Angular, React, HTML5, XML & CSS Develop design and architecture exposure and ability to ensure quality across various technology components that are developed by geographically diversified software engineer. Experience writing SQL queries and understanding of data models. Experience in designing and implementing REST APIs & micro services-based solutions. Should have experience writing unit/integration tests. More ❯

Join to apply for the Senior Software Engineer -Ruby/Ember role at Henry Schein One UK Join to apply for the Senior Software Engineer -Ruby/Ember role at Henry Schein One UK About Us At Henry Schein One UK, we are a tech company with a mission to redefine dental care, creating … customer success in mind, building relationships that go beyond transactions and ensuring that as team members, we all prioritise customer success in every aspect of our work. We build software that delivers value for our users and resist the urge to over-engineer our solutions. We let our users and the data tell us where we go next … JavaScript NodeJS, TypeScript, Angular, TailwindCSS .NET 7, Blazor WebAssembly Puma, Sidekiq Postgres, Redis GitHub, AzureDevOps, Slite, Slack How You'll Make An Impact We are looking for a talented senior software engineer who is experienced at building applications for consumers and enterprises. You will play a leading role on our teams and have flexibility, autonomy and responsibility More ❯

Senior Software Engineer, Python Development - London Join to apply for the Senior Software Engineer, Python Development - London role at Fitch Ratings Senior Software Engineer, Python Development - London 1 day ago Be among the first 25 applicants Join to apply for the Senior Software Engineer, Python Development - London role … at Fitch Ratings Fitch Group is currently seeking a Senior Software Engineer, Python Development based out of our London office. As a leading, global financial information services provider, Fitch Group delivers vital credit and risk insights, robust data, and dynamic tools to champion more efficient, transparent financial markets. With over 100 years of experience and colleagues in … New York, Fitch Group is owned by Hearst. Fitch's Technology & Data Team is a dynamic department where innovation meets impact. Our team includes the Chief Data Office, Chief Software Office, Chief Technology Office, Emerging Technology, Shared Technology Services, Technology, Risk and the Executive Program Management Office (EPMO). Driven by our investment in cutting-edge technologies like AI More ❯

Since 2008, Aqovia has been at the forefront of technology innovation, serving clients in telecommunications, media, and technology. We specialise in architecture, design, and software development for transformative projects. Join a team that values innovation, expertise, and commitment to excellence. Embark on a journey with Aqovia, where your management skills and client engagement expertise will be crucial in shaping … the future of technology solutions. Job Description: Aqovia is looking for a Senior C# Software Engineer to join our agile software development team. You will work in fast-paced development teams for our own products as well as client projects. An accomplished developer, you will be motivated to develop your skills in microservices and reusable Web … Components, contributing to the whole software development lifecycle. Aqovians live and breathe agile, thrive in an eXtreme Programming environment, and are passionate about software development as a craft, as well as an engineering discipline. We love learning new skills and keep up-to-date with the latest industry trends. We advocate for the best tools and practices and More ❯

Senior Software Engineer - Clean Room page is loaded Senior Software Engineer - Clean Room Apply locations London time type Full time posted on Posted 18 Days Ago job requisition id JR011619 LiveRamp is the data collaboration platform of choice for the world's most innovative companies. A groundbreaking leader in consumer privacy, data ethics, and … the value of their first-party data while staying on the forefront of rapidly evolving compliance and privacy requirements. You will: Lead the design, development, and implementation of complex software solutions for LiveRamp's Clean Room platform. Collaborate with cross-functional teams, including product managers, designers, and other engineers, to deliver high-quality features. Provide technical mentorship and guidance … junior engineers in the team. Continuously improve the performance, scalability, and reliability of existing systems. Participate in code reviews and ensure that the team adheres to best practices in software development. Keep up-to-date with the latest industry trends and technologies to continuously evolve the Clean Room platform. Your team will: Collaboratively develop cutting-edge solutions to improve More ❯

here for more information on flexible working options Flexible Working Options Flexibility in when hours are worked, Hybrid Working, Reduced Hours Job Description Summary . Job Description JOB TITLE : Senior Software Engineer (Fullstack) SALARY: Regional: £70,929 - £86,691 GBP London: £81,999-£100,221 GBP LOCATION(S): HOURS: Full-time – 35 hours per week WORKING PATTERN … ll design and develop both frontend and backend components of modern applications. You’ll work with cloud-native technologies, microservices, and CI/CD pipelines to deliver high-quality software that makes a real difference. WHAT YOU’LL BE DOING As a Senior Software Engineer, you’ll: Design, develop, test, and deploy modular applications, APIs, and … we’re committed to creating an environment in which everyone can thrive, learn and develop. We were one of the first major organisations to set goals on diversity in senior roles, create a menopause health package, and a dedicated Working with Cancer Initiative. We offer reasonable workplace adjustments for colleagues with disabilities, including flexibility in office attendance, location and More ❯

vehicles, using its central role in the Fintech ecosystem to identify and back revolutionary new businesses. The role Our Tech Team at Fasanara is looking to bring onboard a senior Full-Stack Engineer who will be essential in expanding the capabilities across our investment tools, working on several Greenfield projects. You'll have the opportunity to partner across … multiple business areas building scalable innovative solutions. This role would suit an ambitious, seasoned engineer who wants to be part of an expanding engineering team having a big impact. Responsibilities Design and develop scalable, high-performance internal platforms and applications for core business functions including Credit Trading, FX Hedging, Portfolio Monitoring, and Treasury. Collaborate cross-functionally with investment, operations … and data teams to translate complex business workflows into efficient, maintainable software solutions. Drive the full software development lifecycle - from technical design and implementation to testing, deployment, and production monitoring. Contribute across the stack, including backend services, frontend interfaces, and data engineering pipelines as needed. Provide technical leadership and mentorship to more junior team members, fostering a culture More ❯

be unsettling (as well as exciting), so we are looking for people who enjoy this challenge, and want to help others thrive too. About the role Are you a Software Engineer that wants to actually see the real-world impact from what you help to create? Our mission is simple! We believe we can use tech to make … we encourage all people from underrepresented groups to apply for roles with us. Have we caught your interest? Please read on... Key responsibilities We primarily write and deliver custom software for the public sector. We work across central and local government, as well as in health, and our past lies in the technology startup world. Technical excellence for us … t about delivering to feature lists. We place a strong emphasis on outcome-based delivery; ensuring our customer’s goals are understood and achieved with the technology we deploy. Senior Software Engineers find themselves working on a variety of different problems from monoliths to microservices, upskilling colleagues and customers, always finding themselves learning from others, while constantly striving More ❯

Best Place to Work. Today, we’re recognized as a global leader in entertainment producing The PlayStation family of products and services including PlayStation5, PlayStation4, PlayStationVR, PlayStationPlus, acclaimed PlayStation software titles from PlayStation Studios, and more. PlayStation also strives to create an inclusive environment that empowers employees and embraces diversity. We welcome and encourage everyone who has a passion … innovating, developing, and delivering advancements for existing projects Participate in code reviews and contribute to continuous improvement of the development process What we're looking for: This is a senior engineering role where you will be expected to apply your technical expertise to deliver complex projects, solve challenging technical problems, and contribute to the development of innovative solutions and … expertise over several programming languages including C/C++, Go and Python with a strong passion for client and server technologies. You’ll need to be passionate about games, software and hardware design, staying updated with emerging technologies and industry trends, and showcasing your ability to adapt to new challenges and technologies. You’ll need to have some (not More ❯

and solve massive scale problems centered on new payment flows, business and data solutions, cyber security, and B2C platforms. The Opportunity: We are looking for Versatile, curious, and energetic Software Engineers who embrace solving complex challenges on a global scale. As a Visa Software Engineer, you will be an integral part of a multi-functional development team … inventing, designing, building, and testing software products that reach a truly global customer base. While building components of powerful payment technology, you will get to see your efforts shaping the digital future of monetary transactions. The Work itself: Design code and systems that touch 40% of the world population while influencing Visa’s internal standards for scalability, security, and … reusability Collaborate multi-functionally to create design artifacts and develop best-in-class software solutions for multiple Visa technical offerings Actively contribute to product quality improvements, valuable service technology, and new business flows in diverse agile squads Develop robust and scalable products intended for a myriad of customers including end-user merchants, b2b, and business to government solutions. Leverage More ❯

Join to apply for the Senior Software Engineer role at Complexio Join to apply for the Senior Software Engineer role at Complexio Complexio's Foundational AI works to automate business activities by ingesting whole company data – both structured and unstructured – and making sense of it. Using proprietary models and algorithms Complexio forms a deep … Complexio is a joint venture between Hafnia and Símbolo, in partnership with Marfin Management, C Transport Maritime, Trans Sea Transport and BW Epic Kosan. About the job As a Senior Software Engineer with broad expertise, you will be a vital part of our team, developing innovative applications that leverage AI capabilities to enhance user experiences and streamline … You have: Excellent problem-solving and technical skills. Strong communication and collaboration skills, with the ability to work in a team. Interest and experience in working on early-stage software and a wide range of tasks. Proven experience using technology and how it helped you build a lasting product. Key Responsibilities Collaborate with cross-functional teams to develop key More ❯

Senior Software Development Engineer in Test (SDET) - Midnight Senior Software Development Engineer in Test (SDET) - Midnight 2 weeks ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Sign in to access AI-powered advices Continue with Google Continue with Google Continue with Google Continue with … is visible on-chain and is designed to help developers implement necessary business policies, such as meeting regulatory requirements. What the role involves: We are looking for an experienced Senior Software Development Engineer in Test (SDET) who will be a key contributor on the Midnight team developing leading edge technology in one of the most exciting fields … in the world. As a Senior SDET, you will play a pivotal role in ensuring the reliability, security, and performance of our cutting-edge blockchain solutions. You will collaborate closely with the Head of QA to design, implement, and execute robust test strategies, contributing to the success of our blockchain products. Most importantly, you will be a person who More ❯

If you are software engineer looking to expand your technical ability using the latest technology within a dynamic team, this role could be for you. We are a public sector/aviation focused tech consultancy based in London working alongside some of the UK's biggest airports and defence companies. Currently, we are looking to expand our team … to accommodate the influx of exciting projects we've won recently. This software engineer will be responsible for the leadership of the development team As the senior software engineer you will be responsible for the delivery of our new projects and products across the civil aviation, defence and public sector industry. The ideal candidate will … be expected to work with a certain level of autonomy and alongside the Head of Development. Years of Experience: 5+ years in software engineering. Programming Languages : Robust experience in JavaScript. Proficiency in C# is also valuable. Familiar with frameworks like Spring or .NET. Services and REST APIs : Solid background in developing services and RESTful APIs, demonstrating an understanding of More ❯

Senior Lead Software Engineer - C++ - Athena Hydra Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. Job Description Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products. … As a Senior Lead Software Engineer at JPMorgan Chase within Athena Core Hydra (CIB), you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Drive significant business impact through your capabilities and contributions, and apply deep technical expertise and … function-wide subject matter expert in one or more areas of focus Actively contributes to the engineering community as an advocate of firmwide frameworks, tools, and practices of the Software Development Life Cycle Influences peers and project decision-makers to consider the use and application of leading-edge technologies Adds to the team culture of diversity, equity, inclusion, and More ❯

Join to apply for the Senior Software Engineer role at Ripple Join to apply for the Senior Software Engineer role at Ripple Get AI-powered advice on this job and more exclusive features. At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and … backs. If you’re ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. The Work We are looking for a Senior Software Engineer passionate about solving ambitious problems and working directly with Ripple Trading and Markets in the cross-border payments space. We are passionate about the growth … partners. Continuing to support and complement Ripple’s Payments, Custody and Stablecoin business units What You’ll Do Be an ambitious builder, working up and down the stack, mixing software engineering, data engineering, and distributed systems knowledge to build modern enterprise payment applications. Build reliable, high-throughput, low-latency microservices to power a diverse range of trading use cases More ❯