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Senior Software Engineer - Ads United Kingdom Jobs

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Senior Software Engineer - Desktop
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Join Anaconda's Desktop team as a Senior Software Engineer to redefine tools for data scientists. You'll build a next-gen Electron app with React/TypeScript, integrating Python environments and AI tools. Enjoy a UK remote role with comprehensive benefits and a focus on user-centric development.
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United Kingdom
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Anaconda
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Senior Software Engineer II
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Lead the design and scaling of a planet-scale cloud control plane for global IoT fleets at Axon. This senior role requires 10+ years in distributed systems, deep expertise in Go, Kubernetes, and cloud-native security. Based in London, you'll directly impact public safety while enjoying a competit...
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United Kingdom , London
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Axon
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Senior Software Engineer in Test
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Join Axon's mission to protect life as a Senior SDET in London. You will architect test infrastructure and lead automation for mission-critical, AI-powered public safety platforms. This role requires 7+ years' experience in test automation, proficiency in languages like Python/Java, and expertise...
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United Kingdom , London
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Axon
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Senior Software Engineer – GTM Systems
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Join our London team as a Senior Software Engineer for GTM Systems. You will build scalable tools on Salesforce and Snowflake, using Python, SQL, and Apex. Translate business needs into technical solutions and mentor peers in a fast-growing startup. Enjoy competitive salary, equity, comprehensive...
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United Kingdom , London
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Intercom
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Senior Software Engineer
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Join Arrcus as a Senior Software Engineer in the UK. You will qualify key customer deployments, focusing on networking protocols like IPv4/IPv6, MPLS, and EVPN. The role requires strong Python skills, test automation, and experience with Spirent/IXIA equipment. We offer competitive bonus + equity...
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United Kingdom
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125000.00 - 150000.00 USD / Year
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Arrcus
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Senior Software Engineer (Front End)
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Join Matillion in Manchester as a Senior Front End Software Engineer. Utilize your expertise in React, TypeScript, and modern UI architecture to build performant, user-centric applications. You will leverage AI-powered tools, own features through the full SDLC, and enjoy benefits like equity and ...
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United Kingdom , Manchester
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59600.00 - 89400.00 GBP / Year
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Matillion
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Senior Automation Software Engineer
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Lead complex automation solutions for naval combat systems as a Senior Engineer in New Malden. Utilize your C#/PowerShell and VMware expertise to design and maintain critical deployment frameworks. This role offers technical leadership, mentorship, and the chance to shape automation strategy with...
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United Kingdom , New Malden
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37.25 GBP / Hour
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Outsource UK
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Senior Java Software Engineer
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Join a high-profile project as a Senior Java Engineer, focusing on backend systems for complex financial and actuarial data. This contract role requires strong expertise in the Spring ecosystem and AWS with IaC tools like Terraform. Deliver scalable solutions in a regulated UK environment, workin...
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United Kingdom
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Orbis Consultants
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Senior Salesforce Software Engineer
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Join Gigaclear as a Senior Salesforce Software Engineer in Abingdon. Transform our Salesforce product using Apex, LWC, and integrations to empower UK communities with fibre broadband. We seek a certified expert with 2-3+ years' hands-on experience in development, APIs, and CI/CD. Enjoy a generous...
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United Kingdom , Abingdon
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360 Resourcing Solutions
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Senior Software Engineer (Blockchain)
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Join a pioneering UK organisation to shape the future of digital finance as a Senior Software Engineer. Develop cutting-edge blockchain solutions using Solidity, TypeScript, and EVM. Build scalable DeFi systems and user interfaces in a fully remote, high-impact role with competitive benefits.
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United Kingdom
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120000.00 GBP / Year
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Formula Recruitment
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Senior Embedded Software Engineer
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Join a scaling Tech for Good company in London as a Senior Embedded Software Engineer. You will design and test firmware for embedded systems, using your 5+ years of C expertise in IoT and wireless communications. This hybrid role offers the chance to work on data-driven, AI-first solutions with ...
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United Kingdom , London
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100000.00 GBP / Year
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Formula Recruitment
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Senior Software Engineer - Java Full Stack, Futures Engineering
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Lead the development of a Cleared Derivatives back-office system in London. This senior Java Full Stack role requires 7+ years of back-end expertise, financial industry experience, and skills in microservices, Kafka, and Kubernetes. Contribute to ReactJS front-end and enjoy competitive compensati...
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United Kingdom , London
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Clear Street
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Senior Software Engineer
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Join a growing Manchester tech startup as a Senior Software Engineer. Build cloud-native, serverless systems using TypeScript and AWS in a collaborative DevOps environment. Enjoy a hybrid model with 2 days in the office and a 2pm Friday finish. Champion best practices like TDD and pair programmin...
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United Kingdom , Manchester
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50000.00 - 70000.00 GBP / Year
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Morson Talent
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Senior Software Engineer
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Join a mission-driven team in Manchester as a Senior Software Engineer. Develop scalable, serverless systems using TypeScript, AWS, and Graph databases. Enjoy high autonomy, complex challenges, and benefits including a bonus and hybrid working.
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United Kingdom , Manchester
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70000.00 - 80000.00 GBP / Year
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Morson Talent
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Senior Software Engineer
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Join Barclays as a Senior Software Engineer in Knutsford/Manchester. Design and develop cutting-edge solutions using Java, Spring Boot, and REST APIs. You will re-architect key systems, lead feature teams, and ensure engineering excellence. We offer private medical care, pension contributions, an...
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United Kingdom , Knutsford; Manchester
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Barclays
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Senior Software Engineer - Python
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Join Admiral Money in Cardiff as a Senior Python Engineer. Champion technical excellence within Agile teams, leveraging AWS, CI/CD, and secure development practices. Enjoy substantial benefits including generous holiday, share schemes, and flexible working while building innovative lending soluti...
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United Kingdom , Cardiff
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Admiral Group Plc
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Senior Software Engineer in Test, Python
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Join our team in Cambridge as a Senior SDET. You will revolutionize testing by architecting intelligent, AI-driven solutions using Python. Leverage predictive analytics and LLMs to prevent regressions and enhance production reliability. Enjoy comprehensive global and local benefits, including hea...
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United Kingdom , Cambridge
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Roku
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Senior Software Engineer, Python (Tools Development)
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Join Roku's software automation team in Cambridge as a Senior Python Engineer. Develop and enhance E2E test automation frameworks and web-based tools for embedded devices. Leverage your expertise in Python, React, CI/CD, and cloud technologies. Enjoy comprehensive benefits and support in a dynami...
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United Kingdom , Cambridge
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Roku
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Senior Software Engineer
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Join Arqit, a leader in quantum-safe cybersecurity, as a Senior Software Engineer in Belfast. Develop mission-critical, scalable encryption software using Python, with opportunities in Rust and AngularJS. Enjoy a comprehensive benefits package including equity, bonus, and private medical insuranc...
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United Kingdom , Belfast
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Arqit
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Senior Software Engineer
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Join a leading UK software house as a Senior Software Engineer. Develop innovative, global greenfield solutions using Java, Spring, and cloud tech. Enjoy a hybrid role with a bonus, shares, and a strong wellbeing package. Lead on AI-driven projects in a collaborative R&D environment.
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United Kingdom
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100000.00 - 120000.00 GBP / Year
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SF Technology Solutions
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Explore senior software engineer jobs in the dynamic and high-impact field of advertising technology. A Senior Software Engineer specializing in Ads is a pivotal role responsible for architecting, building, and maintaining the complex systems that power digital advertising platforms. These professionals work at the intersection of data, performance, and scale, developing the engines that deliver targeted ads, manage real-time bidding auctions, analyze campaign performance, and ensure optimal revenue generation. Their work directly influences the core business metrics of platforms, making this a critical and technically challenging career path. Typically, professionals in these roles are entrusted with end-to-end ownership of major components within the ad tech stack. Common responsibilities include designing and implementing low-latency, high-throughput distributed systems capable of processing billions of requests daily. They develop algorithms for ad targeting, ranking, and budget pacing, while rigorously optimizing for performance and cost-efficiency. A significant part of the role involves ensuring system reliability and data accuracy, as even minor errors can have substantial financial implications. Collaboration is key; senior engineers frequently work alongside product managers, data scientists, and machine learning experts to translate business requirements into robust technical solutions. They also champion best practices, mentor junior engineers, and lead initiatives to improve code quality, system architecture, and operational excellence. To excel in senior software engineer jobs within ads, a specific and advanced skill set is required. A strong foundation in computer science fundamentals, data structures, and algorithms is non-negotiable. Proficiency in languages like Java, Go, Python, C++, or Scala is common, coupled with deep experience in distributed systems, cloud platforms (AWS, GCP, Azure), and big data technologies (e.g., Hadoop, Spark, Kafka). Expertise in database design, both SQL and NoSQL, is essential for handling massive datasets. Given the real-time nature of ad serving, knowledge of concurrency, multithreading, and network programming is critical. Furthermore, a solid understanding of the digital advertising ecosystem—including concepts like RTB, DSPs, SSPs, and ad exchanges—is a major advantage. Successful candidates typically possess several years of relevant experience, a proven track record of solving complex scalability problems, and a data-driven, results-oriented mindset. They are proactive problem-solvers who can navigate the trade-offs between system performance, business needs, and technical debt. If you are passionate about building systems at massive scale and directly impacting business growth, exploring senior software engineer jobs in ads offers a rewarding and intellectually stimulating career.

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