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Senior Software Engineer - Reconciliation United Kingdom, London Jobs (Hybrid work)

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Full-stack Senior Software Engineer, GenAI Data Products and Platform
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United Kingdom , London
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Citi
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Senior Software Engineer – Backend
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United Kingdom , London
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Orbis Consultants
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Senior Software Engineer | Backend
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Join Apron in London as a Senior Backend Engineer to build secure, high-speed financial systems. We seek an expert with 6+ years' backend experience, proficiency in Kotlin/JVM, and cloud platform knowledge. You'll develop core integrations in a product-led startup, enjoying a competitive salary, ...
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United Kingdom , London
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Apron
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Senior Software Engineer, Substrate
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United Kingdom , London
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Palantir Technologies
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Senior Front End Software Engineer - Application Development
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United Kingdom , London
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Palantir Technologies
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Senior Cloud Platform Software Engineer
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Join Zenobe in London as a Senior Cloud Platform Software Engineer. Design and manage scalable, secure AWS infrastructure using Terraform, Kubernetes, and Kafka. Champion DevOps practices, CI/CD, and automation while mentoring junior engineers. Enjoy a competitive package with a significant bonus...
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United Kingdom , London
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Zenobē
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Senior Full-Stack Software Engineer
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United Kingdom , London
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Heidi
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Senior Software Engineer (Backend - EMR/EHR Integrations)
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Join our London team as a Senior Backend Engineer specializing in EMR/EHR integrations. You will design and build critical healthcare API connections using standards like HL7 and FHIR, with Python/FastAPI. This hybrid role offers equity, wellness days, and a direct impact on AI-powered clinical w...
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United Kingdom , London
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Heidi
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Senior Software Engineer
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United Kingdom , London or Bristol
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Just Eat Takeaway.com
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Senior Software Engineer II
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United Kingdom , London
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Axon
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Senior Software Engineer, Dedrone Infrastructure
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United Kingdom , London
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Axon
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Senior Software Engineer
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Join Microsoft's global Industry Solutions Engineering team in London as a Senior Software Engineer. Develop cutting-edge cloud solutions directly with customers, tackling their toughest technical challenges. This role requires a CS degree/equivalent and involves up to 25% travel. We offer a comp...
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United Kingdom , London
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Microsoft Corporation
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Senior Software Engineer
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Join our Equity Derivatives technology team in London as a Senior Software Engineer. You will develop and support the high-performance pricing platform using Java, RESTful services, and modern engineering practices. This role offers collaboration with front office teams to build scalable solution...
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United Kingdom , London
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Citi
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Senior Software Engineer
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United Kingdom , London
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250000.00 GBP / Year
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Orbis Consultants
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Senior Software Engineer – Backend
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United Kingdom , London
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Orbis Consultants
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Senior Software Engineer – AWS Connect / Lex
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United Kingdom , London
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Harrington Starr
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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 technologies. This role requires PCI DSS expertise to develop and maintain our cutting-edge payment infrastructur...
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United Kingdom , London
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Parking Network B.V.
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Senior Software Engineer
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Join our London team as a Senior Software Engineer. You will lead development on our PHP/MySQL/AWS platform, building scalable RESTful APIs and web applications. We value expertise in modern software engineering, CI/CD, and full-stack performance tuning. Enjoy a collaborative, supportive environm...
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United Kingdom , London
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Arrive
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Senior Software Engineer, Data Engineering
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Join a leading investment firm as a Senior Software Engineer (Contract) on their high-scale Market Data Platform in London. You will design and optimize critical systems using Java and Python, handling billions of real-time data points daily. This high-impact role requires expertise in low-latenc...
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United Kingdom , London
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rmg digital
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Senior Software Engineer
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Join Microsoft's OneFuzz team in London as a Senior Software Engineer. Develop a scalable, cloud-based fuzzing platform using Python, C#, or Rust. Integrate security testing into CI/CD pipelines and advance fuzzing techniques. Collaborate on open-source innovation within a distributed systems env...
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United Kingdom , London
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Microsoft Corporation
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Discover rewarding Senior Software Engineer jobs where technical mastery meets strategic impact. A Senior Software Engineer is a pivotal role in the technology industry, representing an experienced professional who designs, builds, and maintains complex software systems. These individuals are far beyond entry-level coding; they are responsible for architectural decisions, mentoring peers, and ensuring the delivery of high-quality, scalable, and performant applications that drive business value. Professionals in these jobs act as technical leaders within their teams, translating product vision into robust technical solutions and setting standards for engineering excellence. Typically, the common responsibilities of a Senior Software Engineer encompass the full software development lifecycle. This includes architecting system design, writing clean and efficient code, conducting thorough code reviews, and troubleshooting sophisticated technical issues. They own significant features or services from conception through deployment and monitoring. A key aspect of the role is collaboration, working closely with product managers, designers, and other engineers to refine requirements and align on solutions. Furthermore, they champion best practices in testing, security, and performance optimization, often integrating these principles into CI/CD pipelines. Mentorship is a fundamental duty, as they guide less experienced engineers and help elevate the entire team's capabilities. The typical skills and requirements for these positions are extensive. A strong foundation in computer science principles is essential. Expertise in one or more modern programming languages (such as JavaScript/TypeScript, Python, Java, C++, or Go) and relevant frameworks (like React, React Native, Node.js, or .NET) is expected. Senior engineers possess deep architectural fluency, understanding how to design systems for scalability, reliability, and maintainability. They are proficient with development tools, version control, and cloud platforms (AWS, Azure, GCP). Soft skills are equally critical: strategic communication, proactive problem-solving, and a performance-first mindset. Experience with agile methodologies, a commitment to continuous learning, and the ability to navigate trade-offs between speed, quality, and technical debt are hallmarks of a seasoned professional. Ultimately, Senior Software Engineer jobs are for those who seek to solve the most challenging problems, build foundational technology, and lead by example. It's a career path defined by continuous growth, ownership, and the tangible impact of one's work on products and users. If you are an engineer ready to take on greater technical leadership and architectural responsibility, exploring Senior Software Engineer opportunities is the next logical step.

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