651 to 675 of 1,330 Permanent Senior Software Engineer Jobs

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 ...

Five AI is seeking a Senior Software Engineer to design and build tools and workflows that empower engineers to develop, run and evaluate simulation and AI workflows at scale. You will work across multiple languages and systems, contributing to architecture, pipelines and tooling while collaborating with product ...

Canonical is seeking a Senior Software Engineer for the Digital Workplace team. You will design and build systems, services and dashboards, connecting data sources and enabling LLM-powered features. You’ll write specs, estimate work and uphold strong testing and documentation standards. You will mentor others, collaborate ...

Metropolis is seeking a Senior Software Engineer to join the AeroParker team to design and build backend services powering the pre-book parking and e-commerce platform. You will influence product direction, mentor engineers, and contribute to scalable, high-performance systems. The ideal candidate has 7+ years ...

leading maritime technology company located in Cardiff is seeking a mid to senior Software Engineer to enhance their maritime technology platform. You will work on impactful solutions that drive efficiency and safety in the maritime industry, utilizing your expertise in software engineering and cloud technologies. ...

NewDay in London is seeking a Senior Software Engineer to help build internal tools, services, and platform capabilities that empower engineering teams. You will lead complex work end-to-end, mentor others, and shape better engineering practices. This hands-on role explores AI-assisted development responsibly. … collaborate with engineering leadership to influence roadmaps, ensure scalability, and deliver robust software with a focus on maintainability and rapid delivery. #J-18808-Ljbffr ...

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 ...

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 ...

Clearwater Analytics, Ltd. is seeking a Senior Software Engineer to join the Beacon Core Engineering team. You will design, build, deploy, and maintain high-quality code, collaborating with cross-functional teams to enhance our Beacon Cloud platform and client tooling. The role emphasizes using AI agents ...

Harvey Nash Group in the United Kingdom is seeking a Senior Software Engineer to join a growing Global Technology team, delivering high-impact solutions for clients in complex environments. You will own the full software development lifecycle, with a strong focus on engineering excellence, innovation ...

Apolitical is seeking a Senior Software Engineer in London. You will own complex features across front end and back end, collaborating with Product, Design and government partners to deliver high-impact software. You will work in a hybrid setup (London office two days per week) and contribute ...

Moonpig Group is seeking a Senior Software Engineer for Manchester (ideally) or London, in a hybrid role (1-2 days a week). You will help the Search team build scalable experiences using OpenSearch, AWS and modern web technologies. You will mentor teammates, contribute to engineering principles ...

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. ...

Perk is hiring a Senior Software Engineer to own end-to-end technical delivery in a global platform. You will shape roadmaps, design scalable systems, and uphold engineering standards across the stack. Your role includes mentoring, cross-team collaboration, and driving impactful technical decisions. We work with ...

Cisco ThousandEyes is seeking a Senior Software Engineer to design, build and operate near real-time data streaming systems for global networking customers. You will create backend services and APIs, and orchestrate integrations across CI/CD and AI-enabled tooling. You will work with Java-based ...

based AI scale-up is seeking a Senior Software Engineer with expert-level knowledge of MongoDB. This is a remote opportunity for an initial 6-month contract offering up to £700/day. You'll work autonomously in a collaborative DevOps environment, providing guidance on integrating Django ...

Senior Embedded Software Engineer - Modern C++/Embedded Linux Barnsley, South Yorkshire Up to £70,000 + benefits Relocation assistance available Do you write modern C++ every day, but still understand what's happening on the hardware underneath? This is a senior role in a small ...

OneView Commerce in the United Kingdom is seeking a Senior Software Engineer to tackle the hardest problems in a platform serving thousands of shops globally. You will design and build end-to-end features for a resilient, payment-capable system, mentoring junior engineers and shaping technical direction. ...

major platforms, we’ve rapidly risen to become one of the world's largest publishers. About the opportunity We’re looking for a Senior Software Engineer to help build and develop a growing portfolio of AI-powered products and business tools. You’ll work closely with technical … engineering practices as the portfolio grows. How we work with AI AI‐assisted engineering is a core part of how we investigate problems, develop software, test changes and iterate. These tools support engineering judgement rather than replace it. You’ll be expected to define clear requirements, design appropriate systems ...

Cisco ThousandEyes, a Digital Assurance platform within Cisco, seeks a Senior Software Engineer to design and operate real-time data streaming pipelines and APIs for large networking customers. You will implement scalable backend services and integrate AI tools into modern DevOps workflows. The role emphasizes Java development ...

November 2026 Salary Range £84,624 - £126,936 Flexible Working Options Hybrid Working, Job Share Job Description Summary . Job Description JOB TITLE: Senior Software Engineer SALARY: £84,624-£105,780 LOCATION(S): London HOURS: Full-time WORKING PATTERN: Our work style is hybrid, which involves spending … leadership for strategic platform modernisation initiatives, including risk engine simplification, cloud migration, performance improvement, data platform optimisation, and operational resilience enhancements. Acting as a senior delivery lead and subject matter expert, guiding agile delivery teams, managing complex dependencies, and ensuring successful execution of business-critical risk programmes. Why join ...

Triptease is seeking a Senior Software Engineer in the United Kingdom for a remote-friendly role. You will build with agents, emphasize tests, and own significant features end-to-end, driving architectural choices and team alignment. You will collaborate closely with product managers and engineers to deliver ...

Avaloq Group in Edinburgh is seeking a Senior Software Engineer to join our Platform and Integration team. You will maintain and enhance Core Banking modules, develop change requests and provide support to live clients, working with SMEs to design, test and maintain high-quality banking solutions. This ...

Process Street is seeking a Senior Software Engineer to architect and evolve an AI-native SaaS platform. You will work remotely across time zones, designing scalable backend systems, APIs, and AI-assisted services while shaping frontend work with modern tools. The role emphasizes collaboration with ...

Cisco ThousandEyes in London is seeking a Senior Software Engineer to design, build, test, and operate near real-time data streaming solutions for large networking customers. You will develop agentic workflows, integrate AI tools with CI/CD and dev environments, and create secure, observable backend services ...