26 to 50 of 498 Senior Software Engineer Jobs in London

Senior Software Engineer, Backend Services & APIs Office based in Moorgate, London Join Fortinet, a global cybersecurity pioneer with over two decades of excellence, as we continue to shape the future of cybersecurity and redefine the intersection of networking and security. At Fortinet, our mission is to safeguard … people, devices, and data everywhere. We are currently seeking an experienced Software Engineer to contribute to the success of our rapidly growing business. The FortiDLP platform collects millions of data points per second. We protect people and data anywhere, and innovative companies worldwide use FortiDLP for human-centric ...

Senior Software Engineer Application Deadline: 4 September 2026 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £70,000 - £95,000/year Description Please note: applicants must hold active SC clearance and be eligible to obtain DV. This role also requires applicants to work … complex, high impact systems, the kind where security, scalability, and seamless usability aren't just features, but absolute requirements. We’re looking for a Senior Software Engineer who wants to shape meaningful systems, influence technical direction, and collaborate with capable people who care about doing ...

Senior Software Engineer Department: Technology Employment Type: Permanent - Full Time Location: UK - London Reporting To: Anna Kaglyak Description At CFC, technology is central to how we create and deliver specialist insurance products. Our platforms support every part of the business, enabling underwriters, brokers and clients to work … more efficiently and make better decisions. We're seeking a Senior Software Developer to join our Engineering team. Working within a collaborative, product-led environment, you'll design and deliver scalable software solutions, contribute to technical strategy, and help shape the evolution of our technology platforms. This ...

Summary We are seeking an experienced DV Cleared Senior Software Engineer to join a collaborative Agile development team, designing and delivering secure, scalable software solutions for mission-critical environments. This is an excellent opportunity to work on technically challenging projects using modern software engineering practices … cloud technologies, and DevOps methodologies while contributing to solutions that have a real national impact. Key Responsibilities Design, develop, test, and maintain high-quality software applications. Build backend systems, APIs, data processing pipelines, and modern web applications. Participate throughout the complete software development lifecycle, from requirements gathering ...

Senior Software Engineer (Cloud Infrastructure & DevOps) Location: London (Three days in office, two days wfh) Salary: £80,000 to £100,000 + Bonus My client is seeking a Senior Software Engineer to lead our cloud infrastructure and DevOps practices within the Developers' Team. They … DevOps expert Be one of the leaders in the migration toward microservices and ephemeral architecture Lead in infrastructure as code in sync with our Senior colleagues Establish and maintain CI/CD pipelines for the team's data and application projects, in particular for stg/prod Lead ...

Senior Software Engineer 6-Month Contract £600-£650 per day (Inside IR35) Hybrid (1 day per week in London, Cardiff or Glasgow) SC Clearance is desirable but not essential A leading governing body is seeking an experienced Senior Software Engineer to support the development … such as CI/CD and automation. Key Responsibilities Develop, maintain, and support core business applications Contribute to the technical design and delivery of software solutions Produce clear and effective technical documentation Collaborate with cross-functional teams including Product, Delivery, and DevOps Support the adoption of modern development practices ...

Senior Software Engineer Central London (1 day a month) Up to £80,000 (depending on experience) + benefits package Our client is a leading professional services firm undergoing an exciting digital transformation programme. This is an opportunity to join a collaborative, forward-thinking technology team where innovation … Enjoy a flexible hybrid working model and excellent benefits package. Access ongoing professional development and Microsoft technology training. What Will You Do? As a Senior Software Engineer, you'll be responsible for designing, developing, and enhancing business-critical applications and platforms across the organisation. Working closely with ...

what we offer . We are expanding our Middle East and Africa (MEA) expansion team and are looking for ambitious and highly skilled Senior Software Engineers to join the engineering team. You will play a crucial role in expanding our product offerings across MEA region, covering Onboarding (Consumer … region, while collaborating closely with our global teams, including helping to shape our global KYC/KYB and money movement systems. As a Senior Software Engineer in one of the MEA teams, you will be a core contributor focused on building robust and scalable capabilities for Consumer ...

Senior Software Engineer Office Location: Holborn, London - hybrid working environment (3 days in office per week). Our Mission Historically, investing in options has been complex and limited to wealthy and professional investors, but our mission is to level the playing field and finally make options trading … installed over 1,000 times within the first 24 hours of our priority access launch and we’re now looking for a high-impact Senior Software Engineer to strengthen our engineering team as we scale. You will have extensive commercial experience designing, building and maintaining systems used ...

Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. As a Senior Software Engineer on our Privacy & Data Security team based in London, you'll be an early member of our growing presence … analyses data from those sources, and surfaces potential security threats to our customers in real time with guidance to remediate them. As a Senior Software Engineer on our Privacy & Data Security team, you’ll be responsible for setting technical direction to enable our product and infrastructure ...

Senior Software Engineer (Cloud Infrastructure & DevOps) Location: London (Three days in office, two days wfh) Salary: £80,000 to £100,000 + Bonus My client is seeking a Senior Software Engineer to lead our cloud infrastructure and DevOps practices within the Developers' Team. They ...

Company Description At the company, we're building the next generation of AI-native enterprise software, transforming how some of the world's largest organisations manage assets, operations and critical services. This is an opportunity to work at the forefront of modern AI engineering, building intelligent products that combine … shipping production AI applications. *Candidates whose AI experience is limited to using tools such as ChatGPT, Claude, Cursor or GitHub Copilot to assist software development, without demonstrable experience building AI-powered products or systems, will not meet the requirements for this role.* the company is a billion-dollar revenue ...

Manpower UK is seeking a Senior Software Engineer for a permanent position at their New Malden site, offering a negotiable salary plus a comprehensive benefits package including bonus, pension, and life assurance. This role involves supporting the design, implementation, and testing of system solutions within the Submarine … Command System team. Senior Software Engineer – New Malden Responsibilities Design, implement, and test system solutions for the Submarine Command System team. Guide and mentor junior software engineers throughout the project lifecycle. Assist the management team with reporting, planning, and estimation activities. Meet with customers ...

Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific.Role Summary:This position is for a Senior Software Engineer who will be accountable for the design and development of a Real-Time SDK as well as deployment of surrounding … management and monitoring to facilitate contributing to or consuming real time financial content.You will work with local/remote development team(s) to define software requirements, do technical design and implement software solutions. In this role, you should be able to work independently with little supervision. Your overall ...

Senior Software Engineer 6-Month Contract £600-£650 per day (Inside IR35) Hybrid (1 day per week in London, Cardiff or Glasgow) SC Clearance is desirable but not essential A leading governing body is seeking an experienced Senior Software Engineer to support the development … such as CI/CD and automation. Key Responsibilities Develop, maintain, and support core business applications Contribute to the technical design and delivery of software solutions Produce clear and effective technical documentation Collaborate with cross-functional teams including Product, Delivery, and DevOps Support the adoption of modern development practices ...

Senior JVM Software Engineer (Scala/Java) 6-12-month contract - Inside IR35 - up to £600 per day London based - hybrid working - 2-3 days onsite Finance sector - must have previous experience Overview Our client is seeking a Senior Software Engineer to join … services environment. This is primarily a backend engineering role, focused on designing and building new functionality rather than support or maintenance. Skills & Experience Strong senior-level software engineering background Significant commercial experience with JVM technologies (Scala or Java) Experience building complex backend or distributed systems Strong understanding ...

Senior JVM Software Engineer (Scala/Java) 6-12-month contract - Inside IR35 - up to £600 per day London based - hybrid working - 2-3 days onsite Finance sector - must have previous experience Overview Our client is seeking a Senior Software Engineer to join … services environment. This is primarily a backend engineering role, focused on designing and building new functionality rather than support or maintenance. Skills & Experience Strong senior-level software engineering background Significant commercial experience with JVM technologies (Scala or Java) Experience building complex backend or distributed systems Strong understanding ...

Senior Python Software Engineer Up to £120,000 London | Python | Java | Cloud | Real-Time Distributed Systems | Bonus & Excellent Benefits Are you an experienced backend engineer who enjoys solving complex technical challenges in high-performance, real-time environments? We're partnering with an innovative technology business that … investing heavily in its engineering capability as it continues to scale. They're looking for a Senior Software Engineer to join a collaborative team developing highly available, cloud-native platforms that process large volumes of real-time data. This is an opportunity to work on technically challenging ...

Senior Software Engineer London, UK. Hybrid - min. 1 day in office per week Permanent, Full-time About TxODDS TxODDS is a premier provider of ultra low-latency, accurate odds data, fast scores, and innovative betting solutions for the global sports betting industry. With offices in London, Chicago … deliver cutting-edge technology and data products that power some of the world’s top sportsbooks. About the Role We’re looking for a Senior Software Engineer to join our London-based engineering team. This is a strategic, hands‐on role where you’ll combine technical expertise ...

mission success – it should enable it.Our Promise. We deliver absolute confidence in environments where failure is not an option.About the role:Everfox is hiring Senior Software Engineer to support our team in London, UK. This role suits a strong senior software engineer who wants … will split your time between hands-on work on our cross-platform desktop and mobile apps and managing delivery across the end-point software layer of the Everfox Hardsec product line. You will shape and deliver the end-point software that gives users access to our secure browsing ...

should enable it. Our Promise. We deliver absolute confidence in environments where failure is not an option. About the role: Everfox is hiring Senior Software Engineer to support our team in London, UK. This role suits a strong senior software engineer who wants … will split your time between hands-on work on our cross-platform desktop and mobile apps and managing delivery across the end-point software layer of the Everfox Hardsec product line. You will shape and deliver the end-point software that gives users access to our secure browsing ...

Senior Software Engineer. Do you thrive in a lively environment where your skills can shine? We're looking for an enthusiastic Software Engineer to join our innovative London based team. What You'll Do: As a Senior Software Engineer, you will play … projects and driving technology forward. Your expertise will make a real difference. Here's what you can expect: Design, develop, and maintain high-quality software solutions. Collaborate with cross-functional teams to define, design, and ship new features. Troubleshoot and debug applications, ensuring top-notch performance and reliability. Mentor ...

## Senior Software EngineerApplylocations: Remote, United Kingdom: Montreal, Canada: Copenhagen, Denmark: London, United Kingdom: Brighton, United Kingdomtime type: Full timeposted on: Posted 9 Days Agojob requisition id: JOBREQ-2615690**L'opportunité** Nous recherchons une ou un développeur logiciel sénior pour diriger la conception et la mise en œuvre … disponible pour ce poste* Un visa de travail ou un parrainage de l'immigration n'est pas disponible pour ce poste**The opportunity** Senior Software Engineer to lead design and implementation of our business-critical data platform.High autonomy role, embedded in a team of senior software ...

## Senior Software Engineer – Margin Technology - Assistant Vice PresidentApplyremote type: Hybridlocations: London United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: 26980024Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every … integrated, highly automated platform that drives outstanding client outcomes and accelerates growth across our global franchise.**Role Overview/What will you do:**As Senior Software Engineer in our global technology team, you will be working with a group of passionate engineers who build technical solutions ...

Senior Platform and Services Software Engineer As a Senior Platform and Services Software Engineer (title negotiable), you’ll play a key role in designing, building, and maintaining the platform and services that power Motilent’s medical imaging analysis and visualisation platform. You’ll work … demands of our medical products. This role is ideal for engineers who enjoy solving complex problems, collaborating across disciplines, and contributing to mission-critical software used in clinical and research environments. This role reports directly to the Technical Product Lead. Salary: £65,000 – £95,000 per annum, depending ...