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Senior Software Engineer - C/C++ United Kingdom Jobs

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Senior Software Engineer, Data Engineering
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United Kingdom , London
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rmg digital
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Senior Software Engineer (PHP)
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Join our Data Management team as a Senior Software Engineer (PHP). You will architect and build features from scratch, handling large data volumes and ensuring high code quality. This UK-based role offers an attractive compensation package with equity and a personal learning budget.
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United Kingdom
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Supermetrics
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Senior Software Engineer (Python)
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Join Supermetrics as a Senior Python Engineer on the Data Storage team. Develop our next-gen scalable data transfer system and new storage layer, foundational for AI and ML capabilities. We seek 6+ years of backend SaaS experience with data pipelines and APIs. Enjoy competitive pay, equity, a lea...
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United Kingdom
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Supermetrics
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Senior Software Engineer
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Join Barclays as a Senior Software Engineer in Knutsford/Manchester. Design and develop high-quality Java/Spring Boot APIs, re-architecting key systems. Collaborate in agile teams, championing best practices and secure coding. Enjoy benefits like private medical care and a competitive pension.
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United Kingdom , Knutsford; Manchester
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Barclays
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Senior Software Engineer in Test
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Join Arm's Software group in Cambridge or Bristol as a Senior Software Engineer in Test. You will design tests and enhance automation frameworks for next-gen architectures. We seek an expert in C/C++, Python, and CI methodologies with strong system-level understanding. Enjoy comprehensive benefit...
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United Kingdom , Cambridge; Bristol
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ARM
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Senior Frontend Software Engineer
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Join Atlassian in London as a Senior Frontend Software Engineer. You will build and modernize frontend infrastructure using React, JavaScript (ES6), and modern testing frameworks. Drive complex projects, mentor junior engineers, and deliver impactful user experiences. Enjoy benefits including hea...
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United Kingdom , London
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Atlassian
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Senior Golang Software Engineer
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Join Citi's pioneering team in London as a Senior Golang Engineer. Lead the 0-1 build of innovative AI products and platforms, leveraging your expertise in Golang, large-scale ML systems, and MLOps. Enjoy a hybrid model, competitive salary, bonus, and comprehensive benefits while defining the fut...
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United Kingdom , London
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Citi
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Senior Software Supply Chain Security Engineer
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Join our London team as a Senior Software Supply Chain Security Engineer. You will design and implement secure, cloud-centric solutions using AWS, Kubernetes, and Terraform. Champion DevSecOps practices and integrate security into CI/CD pipelines within an inclusive, flexible culture. Drive engin...
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United Kingdom , London
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Citi
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Senior Software Engineer
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Join a Cambridge-based quantum computing leader as a Senior Software Engineer. Develop cutting-edge cloud infrastructure using Python, AWS/Azure, and Terraform. Enjoy flexible work, equity, and collaborate with world-class innovators on revolutionary quantum AI and cybersecurity platforms.
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United Kingdom , Cambridge
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Gitmax
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Senior Software Engineer
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Join our London team as a Senior Software Engineer. You will design technical architecture and lead complex projects in Scala/Python, shaping the SolstiCE platform. This role offers a bonus, private medical care, and 27 days' leave. Drive efficiency and automation for our Equity Derivatives busin...
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United Kingdom , London
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Citi
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Senior Full-Stack Software Engineer
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Join our London team as a Senior Full-Stack Engineer. Drive innovation using Go, Python, and React within a product-focused, agile environment. Enjoy a hybrid model, 27 days leave, bonus, and comprehensive benefits while revolutionizing controls management.
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United Kingdom , London
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Citi
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Senior Software Engineer - Build AI Tools
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Join Citi's new GenAI Security team in Belfast as a Senior Software Engineer. Design and build a scalable security platform to protect AI applications from adversarial attacks. Leverage your expertise in Python/Go and secure APIs within a collaborative, cutting-edge environment. This role offers ...
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United Kingdom , Belfast
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Citi
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Senior Software Engineer
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Join a scaling B2B SaaS firm in London, building a global compensation intelligence platform. As a Senior Software Engineer, you'll own core features end-to-end with TypeScript across the stack. We seek a collaborative expert who designs scalable systems and mentors peers, offering a clear path t...
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United Kingdom , London
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110000.00 GBP / Year
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Oho Group Ltd
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Senior Software Engineer
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Join Equinox in London as a Senior Software Engineer. Lead complex projects, design system architectures, and mentor junior developers using Java and Kafka. Enjoy a hybrid model, bonus, private healthcare, and 27 days leave.
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United Kingdom , London
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Citi
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Senior Software Engineer
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Join Citi's Developer Enablement team in Belfast as a Senior Software Engineer. You will build internal platforms and tools using Java/Kotlin, microservices, and Kafka to improve the SDLC for thousands of engineers. We seek expertise in cloud-native tech, DevOps, and CI/CD. Enjoy excellent benefi...
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United Kingdom , Belfast
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Citi
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Senior Software Engineer
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Join Citi's XiP team in London as a Senior Software Engineer. Design and optimize the core distributed Risk Calculation Engine for global trading desks. Leverage your deep Java, Spring, and large-scale system expertise in a pivotal role. Enjoy global benefits supporting your well-being and profes...
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United Kingdom , London
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Citi
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Senior Software Engineer
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Join our London team as a Senior Full Stack Engineer. You will develop and maintain the global accesso Horizon platform using Java, JSP, and SQL. We seek 5+ years' experience with cloud scalability, unit testing, and Scrum. Enjoy flexible hours, virtual team events, and a commitment to diversity.
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United Kingdom , London
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accesso
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Senior Frontend Software Engineer
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Join Addepar's high-impact Partner Platform team in Edinburgh as a Senior Frontend Software Engineer. You'll architect scalable solutions on a data lakehouse, integrating diverse data sources and enabling powerful analytics. This role requires strong frontend skills, backend experience (Python/Ja...
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United Kingdom , Edinburgh
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Addepar
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Senior Software Engineer
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Join our In-Car Payments Engineering team in London as a Senior Software Engineer. You will build secure, cloud-based transaction systems using TypeScript, Node.js, and AWS serverless services. Your expertise in PCI DSS, API security, and Terraform will be key to delivering cutting-edge in-car co...
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United Kingdom , London
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Arrive
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Senior Software Engineer
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Join our London team as a Senior Software Engineer. You will develop scalable PHP/MySQL platforms and RESTful APIs on AWS, focusing on performance and security. We value expertise in modern CI/CD, software architecture, and mentoring. Enjoy a collaborative, supportive, and inclusive work environm...
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United Kingdom , London
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Arrive
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Explore senior software engineer jobs specializing in C/C++, a foundational and high-performance programming domain critical to systems where speed, efficiency, and direct hardware interaction are paramount. Senior Software Engineers in C/C++ are seasoned professionals who architect, develop, and optimize complex software systems. Their expertise is essential in industries such as operating systems, embedded electronics, game development, high-frequency trading, telecommunications, and database engineering, where resource management and real-time processing are non-negotiable. Professionals in these roles typically shoulder a wide array of responsibilities centered on the full software development lifecycle. A core duty involves designing robust software architecture, making critical decisions on data structures, algorithms, and system integration patterns. They write, review, and debug sophisticated, performance-critical code in C and C++, often dealing with memory management, concurrency, and low-level system APIs. A significant part of their work includes performance profiling and optimization, ensuring software operates with minimal latency and maximal throughput. They are also responsible for creating and maintaining technical documentation, leading code reviews to enforce best practices, and mentoring junior engineers to elevate team capability. Collaboration is key, as they frequently work alongside cross-functional teams, including hardware engineers, product managers, and QA specialists, to translate complex requirements into reliable and scalable software solutions. The typical skill set for these senior roles is demanding and specific. Mastery of C and C++ is fundamental, with a deep understanding of language nuances, modern standards (C++11/14/17/20), and associated toolchains. Proficiency in software design principles, object-oriented and procedural programming, and system-level concepts like multithreading, sockets, and memory models is required. Strong experience with version control systems, such as Git, and familiarity with build systems (CMake, Make) is standard. Knowledge of scripting languages like Python for automation, as well as experience with debugging and profiling tools (e.g., GDB, Valgrind, VTune), is highly valuable. While not always mandatory, a solid foundation in computer science, often evidenced by a degree in a related field, is common. Ultimately, successful candidates demonstrate exceptional problem-solving abilities, a meticulous attention to detail, and the capacity to own projects from conception through to deployment and maintenance. For those seeking to leverage deep technical expertise on challenging projects, exploring senior C/C++ software engineer jobs offers a pathway to impactful work at the core of technology.

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