676 to 700 of 1,506 Senior Software Engineer Jobs

Runa, based in London, is seeking a Senior Software Engineer to architect, implement and deploy services from end to end. You will write clean, scalable code to build products used by thousands of customers. You will work with Python, TypeScript and JavaScript on a modern AWS serverless ...

TNEI Services Ltd is looking for a Senior Software Engineer in Manchester to develop high-performance simulation tools using C++. Candidates should have a strong background in C++ programming, and be familiar with Python and power systems concepts. The role offers flexible working hours, 25 days ...

Ctrl Alt is searching for a Senior Software Engineer to build the future of tokenization. You will design and maintain scalable solutions while collaborating with product teams. With over 5 years of experience expected, proficiency in TypeScript or JavaScript is essential. This position offers a dynamic ...

BigCommerce Pty is seeking a Senior Software Engineer in London, offering a hybrid work model. This role involves designing reliable services and APIs, working across backend systems, and tackling ambiguous problems effectively. The ideal candidate will have strong backend engineering experience, production debugging skills, and a solid ...

QinetiQ Limited is seeking a Senior Software Engineer to lead the development of complex features within their dynamic team based in Salford, England. The role emphasizes autonomy and collaboration, requiring strong leadership skills and a focus on quality coding practices. Your responsibilities will include mentoring junior engineers ...

Perk is seeking a Senior Software Engineer to own features end‐to‐end, from understanding customer pains with product and design docs to coding, testing and deployment. You will influence the architectural direction and measurable impact on our global platform. You’ll work in small cross‐functional ...

NatWest Group is seeking a Senior Software Engineer to join a squad with high ownership and autonomy. You will build and maintain services used by engineering squads and help drive AI tooling adoption across the business. With no product owner or tech lead aligned to this squad ...

Intact Insurance is seeking a seasoned Senior Software Engineer to lead the MS Power Platform team in designing, building, and supporting enterprise-grade applications. You will collaborate with stakeholders across the business to shape solutions using Model Driven Apps, Dataverse, and Power Automate. The role emphasizes technical … leadership, architecture oversight, and continuous improvement within a modern software engineering culture. #J-18808-Ljbffr ...

have an exciting opportunity for a Senior Software Engineer to join the Operational and Regulatory Technology department for an award-winning investment platform, offering a collaborative team working environment, training and excellent career progression. Our strategy is to have a cross functional development team, with team members ...

LADbible Group seeks a Senior Software Engineer to build and develop AI-powered products and business tools. You will lead features from discovery through deployment, collaborate with stakeholders and shape secure, reliable applications that solve real business needs. You’ll work across platforms, contribute to architectural decisions ...

seeking a Senior Software Engineer to advance the Realtime Context Engine and Confluent Kafka components. You will develop query execution, ensure high availability, and scale multi-tenant infrastructure powering Lightning tables and the context engine. You will collaborate with product, design and other engineering teams to integrate ...

digiLab seeks an experienced Senior Software Engineer to help build the Uncertainty Engine, the core platform powering trustworthy AI for demanding problems. You will design and implement scalable, secure backend systems and contribute to frontend tasks as needed. This hands‐on role focuses on architecture, deployment ...

Menlo Security is hiring a Senior Software Engineer to join the Threat Protection and ShadowAI team in the UK. This role focuses on building services that detect and control risky web and AI usage for customers, ensuring secure browsing across Menlo's cloud platform for humans ...

connected platform and AI-native ecosystem for private capital. Built to replace fragmented tools with a single system of record, Carta brings together the software, services, and legal infrastructure that founders use to manage equity, fund managers use to run administration and reporting, and legal teams use to close … part of a lean, London-based team, you'll shape how legal, operations, and finance teams work together. The Problems You'll SolveAs a Senior Software Engineer II, you will lead technically complex projects and serve as a multiplier for your team. You'll work to: Drive ...

level C++ frameworks, rendering pipelines, and system architectures that enable smooth navigation and rich animations. Our work sits at the intersection of hardware and software, where we optimize graphics rendering, memory management, and layout engines to ensure a consistent, lightning-fast experience across our entire device portfolio. We operate … environment, partnering closely with firmware and silicon teams to push the boundaries of what’s possible on embedded hardware. About the role As a Senior Software Engineer, you will be a key architect of the core systems that underpin Roku’s user experience. You will design ...

Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs. We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform. In this role, you will scale … dedication to excellence is why we’ve been recognized as a Best Place to Work by Built In (2023–2026), a G2 Best Global Software Company (2025–2026), Forbes Cloud 100 (2022–2025), and CNBC Disruptor 50 (2022–2025). At Navan, we provide an environment where top talent ...

Leap29 is seeking a Senior Software Engineer to design, develop and modernise high‐performance desktop and cloud applications using C#/.NET. You will work hands‐on in a technically focused team, contribute to architecture discussions, code reviews and CI/CD practices, and help evolve existing ...

tech company in Manchester is seeking a Senior Software Engineer to join their product team. In this role, you'll be involved in all aspects of product development from inception to deployment, with a focus on teamwork and engineering best practices. The position offers a competitive salary ...

CommonAI CIC is seeking a Senior Software Engineer to help deploy, extend and optimise vLLM and related inference engines for our AI infrastructure projects. You will work across the Scaling Inference Lab and the High Assurance programme to drive performance, reliability and safety in production‐grade systems. ...

Attest is seeking a Senior Software Engineer to join the Measure squad and help evolve our quantitative survey platform. You will work across frontend and backend, building scalable features and shaping direction while mentoring teammates. The role emphasizes AI-native development, real-time data, and robust visualisations ...

Navan has transformed the corporate travel, payment, and expense landscape by consistently prioritizing user needs. We are seeking a Senior Software Engineer (Backend) for our AI-first engineering team to drive the architecture of a next-generation corporate expense management platform. In this role, you will scale ...

Civica in the United Kingdom is looking for a Senior Software Engineer to work on critical public sector software. You will design and build solutions across both legacy and greenfield environments, focusing on systems that greatly improve public services. The right candidate will have experience in software ...

Sculley and is headquartered in New York City with offices around the world. To learn more, go to www.the company.com. THE ROLE As a Senior Software Engineer on the LiveIntent Real-Time Ad Serving team, you will design, develop, and own the business logic that powers programmatic … integration Participate in architecture discussions and influence the technical roadmap Participate in on-call rotation to support production systems DESIRED CHARACTERISTICS 5+ years of software engineering experience in backend development Deep understanding of computer science fundamentals: data structures, algorithms, performance optimization Experience building and operating distributed systems in production ...

Light & Wonder is seeking a Senior Software Engineer in Manchester to help build a next‐generation, cross‐platform game framework powering experiences across web, mobile, desktop and land‐based gaming platforms. You will design and develop core framework components, influence architecture, and tackle complex performance challenges. ...

Cityscape Recruitment is seeking an experienced Senior Software Engineer to design, build and support internal systems, data platforms and automation solutions that improve operational efficiency. You will work with stakeholders, own features end-to-end from concept to deployment, and help modernise processes using cloud-based solutions ...