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Senior Engineer United Kingdom, London Jobs

315 Job Offers

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Senior Software Engineer
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ASOS seeks a Senior Software Engineer in London to build production-grade platform tooling. Requires deep TypeScript/JavaScript or backend expertise (C#/.NET, Node.js, Go) and Backstage experience. Enjoy hybrid work, discounts, and private medical care.
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ASOS
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Senior Embedded C++ Engineer
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ALTEN seeks a Senior Embedded C++ Engineer in London to build real-time, mission-critical software for defence and safety-regulated systems. Requires strong C++11/14/17 skills, SC clearance eligibility, and offers private medical insurance and flexible working.
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alten
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Senior Machine Learning Engineer
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Lead AI innovation as a Senior ML Engineer in London. Design scalable ML systems with Python, TensorFlow/PyTorch, and cloud platforms. Mentor teams and advise clients in a fast-paced retail environment.
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Faculty
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Senior Data Engineer
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Lawhive seeks a Senior Data Engineer in London to build AI-driven data pipelines for their legal platform. Requires BigQuery, Python, orchestration and data migration expertise. Offers equity, Bupa insurance and 25 days holiday.
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Lawhive
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Senior Product Engineer
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Join hyperexponential as a Senior Product Engineer in London, building AI-powered insurance decision platforms. Work end-to-end from discovery to production, directing AI agents and shipping robust systems in Rust, C/C++, or Python.
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hyperexponential
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Senior Solutions Engineer
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Senior Solutions Engineer role in London bridging customer needs and technical execution for enterprise AI deals. Requires 3-7 years client-facing technical experience, API fluency, and strong problem-solving skills.
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Kernel
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Senior Machine Learning Engineer (MLOps)
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ASOS seeks a Senior Machine Learning Engineer (MLOps) in London to build scalable ML platforms and backend services powering search and personalisation for millions. Requires strong Python/Java, Kubernetes, AWS/GCP and CI/CD expertise.
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ASOS
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Senior Software Engineer
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ASOS seeks a Senior Software Engineer in London to build production-grade platform tooling. Requires deep TypeScript/JavaScript or backend expertise (C#/.NET, Node.js, Go) and Backstage experience. Enjoy hybrid work, private medical care, and great benefits.
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ASOS
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Senior Software Engineer (Quality Engineering)
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Senior Software Engineer (Quality Engineering) in London to build scalable backend platforms, CI/CD, Kubernetes and AI-driven test automation. Join Thought Machine to modernise banking technology.
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Thought Machine
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Senior ML Performance Engineer, Inference Optimisation
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Optimise transformer inference for edge accelerators and GPUs at Wayve in London. Hands-on role spanning compilers, runtimes and kernels, with strong CUDA/TensorRT skills required. Hybrid working, equity and relocation support offered.
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Wayve
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Senior Engineer, High Performance Data Systems
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Encord seeks a Senior Engineer in London to build scalable, high-performance data systems for AI. Requires expertise in distributed systems, Python or Rust/C++, and production ownership. Competitive salary, equity, and growth.
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Encord
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Senior Software Engineer (Safety)
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Lead AI safety engineering in London, designing scalable ML systems and secure LLM applications. Mentor teams, drive technical strategy, and deploy production-grade solutions with Python, cloud, and Kubernetes expertise.
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Faculty
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Senior kdb+ Engineer
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Senior kdb+ Engineer role in London with the world's leading kdb+ consultancy. Requires 5+ years of kdb+/q expertise, time-series architecture skills and capital markets experience. Hybrid working, global clients and clear progression.
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Data Intellect
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Senior Quality Assurance Engineer
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Hudl seeks a Senior QA Engineer in London to shape risk-based quality strategy for its video and data platform. Lead testing in cross-functional squads, drive automation, and use Playwright to deliver data-backed results.
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Hudl
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Senior / Staff Engineer (Routing & Optimisation)
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Join HIVED in London as a Senior/Staff Engineer (Routing & Optimisation) to build distributed systems and productionise optimisation and ML models. Requires 5+ years of software engineering experience with Python or Go.
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HIVED
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DevOps Engineer (Senior) - IFS Logistics
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Senior DevOps Engineer role in London with IFS Logistics, focused on GCP, Kubernetes and Terraform. You will improve observability, CI/CD pipelines and data-pipeline reliability while managing cloud cost. Includes AI coding tools and Python/Django exposure.
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IFS
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Senior Machine Learning Engineer
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Senior ML Systems Engineer role in London to design and operate production infrastructure serving computer vision and multimodal models. Requires 5+ years software engineering with hands-on ML deployment, GPU optimisation and distributed systems experience.
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Encord
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Senior AI - Computer Vision Engineer - UK
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Senior AI/Computer Vision Engineer role in London with deep 3D computer vision and spatial AI focus. Requires 5+ years industrial experience, Python/PyTorch expertise and production deployment skills. Join a Series B AR construction tech leader.
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XYZ Reality
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Senior Full-stack Engineer - CRM
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Preply seeks a Senior Full-stack Engineer in London to build CRM automation with Braze, Python/Django and React/TypeScript. Bring full-stack expertise and Agentic AI experience to shape the future of learning.
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Preply
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Senior Full-stack Engineer (backend-heavy)
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Senior Full-stack Engineer (backend-heavy) at Preply in London. Lead Python/Django backend and React/TypeScript frontend work, apply Agentic AI, and design scalable systems. Enjoy equity, health insurance, learning budget, and relocation support.
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Preply
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About the Senior Engineer role

Senior Engineer jobs represent the pinnacle of technical expertise and leadership within the engineering field. These roles are designed for seasoned professionals who possess deep, specialized knowledge and are entrusted with guiding complex projects, making high-stakes architectural decisions, and mentoring the next generation of talent. Unlike entry or mid-level positions, senior engineers are expected to operate with significant autonomy, translating broad business objectives into robust, scalable, and innovative technical solutions. They serve as the critical bridge between strategic vision and practical execution, ensuring that engineering outcomes align with long-term organizational goals.

Professionals in these roles typically shoulder a comprehensive set of responsibilities that extend beyond pure coding. A core duty is systems architecture and design, where they define the technical blueprint for major initiatives, selecting appropriate technologies and frameworks to ensure performance, security, and maintainability. They are deeply involved in solving the most challenging and ambiguous problems, applying advanced analytical skills to diagnose issues and devise elegant solutions. Leadership is a fundamental aspect, encompassing code and design reviews, technical mentorship for junior team members, and fostering a culture of engineering excellence and continuous improvement. Furthermore, senior engineers often own the entire lifecycle of critical system components, from conception and development through deployment, monitoring, and iterative enhancement.

The typical skill set for senior engineer jobs is both broad and deep. Mastery in one or more programming languages and relevant technology stacks is a given. However, what truly distinguishes a senior engineer is their proficiency in architectural patterns, such as microservices or event-driven design, and a strong grasp of cross-cutting concerns like security, scalability, and observability. They are expected to have extensive experience with modern development practices, including DevOps principles, CI/CD pipelines, infrastructure as code, and automated testing strategies. Equally important are the soft skills: exceptional communication to articulate complex ideas to technical and non-technical stakeholders, strategic thinking to anticipate future challenges, and a collaborative mindset to work effectively across multidisciplinary teams. A proven track record of driving projects to successful completion and a mindset geared towards innovation and efficiency are common requirements.

Ultimately, senior engineer jobs are for those who are not just builders but visionaries and stewards of technology. They play a crucial role in shaping the technical direction of products and services, mitigating risk, and ensuring that engineering practices evolve to meet emerging demands. For organizations, hiring for these positions is an investment in stability, innovation, and sustained competitive advantage. For engineers, these roles offer the opportunity to have an outsized impact, lead transformative work, and define the future of technology within their domain.