76 to 100 of 146 Senior Software Developer Jobs in London

Senior Software Engineer - VS Code Extension/Developer Tooling Hybrid: London Stacklok is an innovative software supply chain security startup founded by Kubernetes co-founder, Craig McLuckie and Sigstore founder, Luke Hinds. Our mission is to make it easier to securely develop software. We are seeking … that combines open source package intelligence with a policy platform built on the open source project, Minder, allowing developers to securely consume open source software while enabling security teams to effectively manage and maintain a robust security posture across the entire software supply chain. We are seeking a … Senior Software Engineer - Dev Tooling to help design, develop, and optimize the Stacklok Cloud developer experience. The primary focus of this role will be on creating enterprise-grade tools and services that provide developers supply chain security feedback as early as possible in their development process. This More ❯

Job description Key Responsibilities: As a Senior Software Developer at the MoJ, you will have technical and people responsibilities. Technical: Securely designing, building, and maintaining APIs, services, and systems Working on pre-existing codebases Improving the resilience and stability of software Applying practices to enable continuous … and apply! Person Specification Essential Criteria: You will: Apply modern development and deployment techniques to your work, including continuous integration and continuous delivery Champion software maintenance, clean code, coding standards, and practices that make change and consistency easier Write automated tests to continuously validate your work Thrive when you … work as part of a team that abides by the spirit of the manifesto of agile software development Have awareness of technologies used as a Developer for web applications (including one or more of the technologies mentioned above in the ‘Our Tech Stack’ section), e.g., databases, microservices, backups More ❯

Are you a senior software developer whose primary language is Golang? I have an opportunity to share with you. This company has demonstrated consistent growth and revenue for many years. They started with only 12 employees in 2000 and now have a team of over 7000 people. More ❯

Social network you want to login/join with: Senior Android Security Software Developer, Fraud, london col-narrow-left Client: bet365 Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job … Description: Who we are looking for A Senior Security Software Developer, who will spearhead the Company’s mobile security initiatives, architecting resilient defences and mentoring teams to outsmart today’s advanced threats. Within the fraud site defence team, you will be a strategic leader in our security … data, against spoofing and tampering attempts. Pioneering new methods from memory protection to code obfuscation, to pre-empt and mitigate potential exploits. Collaborating with software development, information security, and infrastructure teams to integrate robust security features, setting strategic direction on secure development practices. Providing technical leadership and mentorship to More ❯

Social network you want to login/join with: Senior Android Security Software Developer, Fraud, south west london col-narrow-left Client: bet365 Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 4 Posted: 31.05.2025 Expiry Date … 15.07.2025 col-wide Job Description: Who we are looking for A Senior Security Software Developer, who will spearhead the Company’s mobile security initiatives, architecting resilient defences and mentoring teams to outsmart today’s advanced threats. Within the fraud site defence team, you will be a strategic … data, against spoofing and tampering attempts. Pioneering new methods from memory protection to code obfuscation, to pre-empt and mitigate potential exploits. Collaborating with software development, information security, and infrastructure teams to integrate robust security features, setting strategic direction on secure development practices. Providing technical leadership and mentorship to More ❯

Senior Software Developer with Liferay or Angular You have a degree in Engineering, Computer Science or other IT related education (Bachelor/Master). Must be very enthusiastic about Java-based web/enterprise application development and deployment and have experience with Java. The Client would like … with extensive knowledge of HTML5, CSS (SASS), JavaScript, and jQuery. Good sense of web design and Single-Page Application (SPA) development. Knowledge of cloud software design (AWS/Azure). You need to be a fast learner, willing to learn and implement new technologies. There are several locations for More ❯

based approach to solving data challenges, then we'd love to hear from you. The "Special Projects" team is Quick Release's in-house software development centre-of-excellence, developing products directly for clients, tools to support the work of our Analysts and Consultants, and internal software tools … stack developers who have moved into the team after excelling in Analyst or Consultant roles within Quick Release. We are now seeking an experienced Senior Software Developer to bolster our capacity to deliver high quality software solutions, accelerate our processes and help us grow our technical … process will result in your application being rejected. Connect With Quick Release Online LinkedIn: Quick Release LinkedIn Glassdoor: Quick Release Glassdoor Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology Industries: IT Services and IT Consulting #J-18808-Ljbffr More ❯

Senior Software Developer (Python AWS) London - £70,000 - £80,000pa JNC are working with a leading Financial Services clients in London that are looking to bring on a talented AWS Software Engineer who has extensive Python coding skills. This is a great opportunity to join a More ❯

Social network you want to login/join with: Senior Software Applications Developer, west london col-narrow-left Client: SCION Instruments Location: west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide … instruments and market solutions and has truly remarkable growth expectations for the coming years. SUMMARY Reporting to the R&D Programme Manager, the Lead Software Application Developer will guide the software development team in creating and maintaining scalable, high-performance software applications that meet the needs … business, powering it’s Mass Spectroscopy analytical instrumentation. This role requires hands-on development skills, leadership and mentoring capabilities, a deep understanding of various software development methodologies and tools, and the responsibility for managing the technical roadmap and ensuring quality. KEY RESPONSIBILITIES • Lead and mentor a team of software More ❯

Social network you want to login/join with: Senior Software Applications Developer, south west london col-narrow-left Client: SCION Instruments Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 … instruments and market solutions and has truly remarkable growth expectations for the coming years. SUMMARY Reporting to the R&D Programme Manager, the Lead Software Application Developer will guide the software development team in creating and maintaining scalable, high-performance software applications that meet the needs … business, powering it’s Mass Spectroscopy analytical instrumentation. This role requires hands-on development skills, leadership and mentoring capabilities, a deep understanding of various software development methodologies and tools, and the responsibility for managing the technical roadmap and ensuring quality. KEY RESPONSIBILITIES • Lead and mentor a team of software More ❯

Senior Lead C# Software Developer We urgently require a Senior C# Lead Developer with at least 5 to 10 years solid expertise in developing financial systems ideally banking systems. Your experience should include extensive knowledge of developing complex financial systems in C# as Teal Leader. More ❯

C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# .NET. The Client More ❯

Job Summary We have an exciting opportunity for a Senior Software Developer to join the team! We are committed to an inclusive recruitment process, should you require any reasonable adjustments in the process please let us know- so we can aim to accommodate Key Responsibilities Lead system … component design and development. Senior Stakeholder collaboration Manage application support Relationship management and building across business teams Advocate delivery excellence, ensuring application release quality. Skills and Experience C++ UK Markets experience is a must Hands on programming skills Qualifications Knowledge of the STL, experience of the Boost libraries is … highly desirable: system, network, or low latency programming. Development on Linux using gcc, gdb, git and associated debugging tools. Knowledge of all aspects of software design, development, and deployment. Working knowledge of FX products, pricing, and real time risk management desirable. Working knowledge of the design of scalable, high More ❯

Social network you want to login/join with: Senior Software Developer (.Net), south west london col-narrow-left Client: Location: south west london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 04.06.2025 Expiry Date: 19.07.2025 col-wide … developing both internal and external facing systems. Following a modern approach to CI/CD and Infrastructure as Code (IaC) Skills Needed Skilled .Net Developer - modern with .Net Core SQL Database Experience with Event Driven Design (like Rabbit MQ) Cloud would be ideal - they use Azure The work is More ❯

Social network you want to login/join with: Senior Software Developer, Kingston upon Thames Client: Spencer Clarke Group Location: Kingston upon Thames, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: da097408135a Job Views: 5 Posted: 02.06.2025 Expiry Date: 17.07.2025 Job Description: About More ❯

You will need to login before you can apply for a job. Senior Software Developer in Test (SDET) About this role Job overview This role is within Preqin, a part of BlackRock. Preqin plays a key role in revolutionizing private markets data and technology for clients globally … business expectations, documenting these expectations. Ideal candidate: Good understanding of TypeScript, Puppeteer/Playwright, and TeamCity. Experience with SQL Queries, AWS. Passionate about identifying software issues. Knowledge of API development and testing. Ability to adapt quickly and learn continuously. Benefits: We offer a range of employee benefits including retirement More ❯

Senior Lead Software Engineer - Front-End Developer Join to apply for the Senior Lead Software Engineer - Front-End Developer role at JPMorganChase Job Description Be an integral part of a 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 the Corporate Technology Market Risk team, you will lead the rapid expansion of a strategic visualization and reporting platform. You will be an integral part of an agile team that works to enhance, build, and deliver … deep technical expertise and problem-solving methodologies to tackle a diverse array of challenges that span multiple technologies and applications. Job Responsibilities Execute creative software solutions, design, develop, and troubleshoot technical issues with the ability to think beyond routine approaches to build solutions or analyze technical problems. Develop secure More ❯

Senior Full Stack Software Developer Location: Nottingham, United Kingdom Company: Worldline About Us We are innovators at the heart of the payments technology industry, shaping how the world pays and gets paid. Our solutions power the growth of millions of businesses worldwide, from local coffee shops to … our people accelerate their careers and shape the future of payments. The Opportunity Worldline is a key player in the Rail Retail marketplace, developing software used to sell UK train tickets online, in person, and via self-service kiosks. We are upgrading our systems with reliable, modern solutions and More ❯

Senior UI Developer (Lead I - Software Engineering) Join to apply for the Senior UI Developer (Lead I - Software Engineering) role at UST . Role Overview We are seeking a Senior UI Developer with expertise in Angular, ReactJS, NodeJS, JavaScript, and TypeScript to … tools like Maven. Excellent collaboration and communication skills. Passion for clean code, usability, and modern UI/UX trends. Additional Details Seniority Level: Mid-Senior level Employment Type: Full-time, Permanent/Fixed Term Industry: IT Services and Consulting Apply now for a chance to work with the latest More ❯

Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 2 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide Job Description: Senior Trading Software Developers required for an excellent client who are in the trading industry and their office is based in the City of … London. The successful Software Developer will join a small but extremely talented development team. You will be exposed to creating and maintaining our client's own applications based around a C#/.NET/SQL Server/ASP.NET universe. Many projects are greenfield projects and allow you to … opportunity to work with the some of the latest technologies possible and will be expected to produce excellent code for our clients in house software applications. Our client offers a very collaborative working environment with all of the development team coming from excellent educational backgrounds from across Europe. This More ❯

Senior Software Engineer 4 days a week onsite - London - up to £100k DOE We are looking for a talented Developer to join our client, a leading company focused on delivering high-quality software solutions. This innovative organisation excels in creating effective solutions while navigating the complexities … of high-throughput systems. In this role, you will create effective software designs based on product requirements, producing well-structured and testable code. You will apply industry best practices and internal standards to ensure that solutions are performant and observable through metrics and monitoring. Balancing technical solutions with commercial … while demonstrating the ability and willingness to adapt to technical changes. Who We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture More ❯

Senior Software Engineer 4 days a week onsite - London - up to £100k DOE We are looking for a talented Developer to join our client, a leading company focused on delivering high-quality software solutions. This innovative organisation excels in creating effective solutions while navigating the complexities … of high-throughput systems. In this role, you will create effective software designs based on product requirements, producing well-structured and testable code. You will apply industry best practices and internal standards to ensure that solutions are performant and observable through metrics and monitoring. Balancing technical solutions with commercial … while demonstrating the ability and willingness to adapt to technical changes. Who We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture More ❯

Senior Software Engineer 4 days a week onsite - London - up to £100k DOE We are looking for a talented Developer to join our client, a leading company focused on delivering high-quality software solutions. This innovative organisation excels in creating effective solutions while navigating the complexities … of high-throughput systems. In this role, you will create effective software designs based on product requirements, producing well-structured and testable code. You will apply industry best practices and internal standards to ensure that solutions are performant and observable through metrics and monitoring. Balancing technical solutions with commercial … while demonstrating the ability and willingness to adapt to technical changes. Who We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture More ❯

Senior Software Engineer 4 days a week onsite - London - up to £100k DOE We are looking for a talented Developer to join our client, a leading company focused on delivering high-quality software solutions. This innovative organisation excels in creating effective solutions while navigating the complexities … of high-throughput systems. In this role, you will create effective software designs based on product requirements, producing well-structured and testable code. You will apply industry best practices and internal standards to ensure that solutions are performant and observable through metrics and monitoring. Balancing technical solutions with commercial … while demonstrating the ability and willingness to adapt to technical changes. Who We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture More ❯

Senior Software Engineer 4 days a week onsite - London - up to £100k DOE We are looking for a talented Developer to join our client, a leading company focused on delivering high-quality software solutions. This innovative organisation excels in creating effective solutions while navigating the complexities … of high-throughput systems. In this role, you will create effective software designs based on product requirements, producing well-structured and testable code. You will apply industry best practices and internal standards to ensure that solutions are performant and observable through metrics and monitoring. Balancing technical solutions with commercial … while demonstrating the ability and willingness to adapt to technical changes. Who We Are Looking For: At least 5 years of experience as a Developer Strong knowledge of modern PHP 8+ (Laravel/Symfony) Proficiency in JavaScript/TypeScript, NestJS and ReactJS Experience building platforms using event-based architecture More ❯