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Senior Software Engineer - Ads Jobs

3414 Job Offers

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Senior Lead Software Engineer
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Senior Lead Software Engineer sought by Capital One to drive major tech transformation in McLean, VA. Lead full stack teams building cloud-based solutions on AWS, Azure, or GCP using Java, Python, or TypeScript. Requires 6+ years software engineering experience and 1+ year cloud computing. Enjoy ...
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United States , McLean
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229900.00 - 262400.00 USD / Year
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Capital One
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Senior Lead Software Engineer (Full Stack)
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Senior Lead Full Stack Software Engineer sought by Capital One to drive cloud-native transformation in Houston, McLean, or Riverwoods. Lead diverse tech projects, mentor engineers, and build robust solutions using JavaScript, Java, Python, or Go. Requires 6+ years’ software engineering experience...
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United States , Houston; McLean; Riverwoods
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209000.00 - 262400.00 USD / Year
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Capital One
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Senior Software Engineer - Full Stack
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Join Microsoft Clarity as a Senior Full Stack Engineer to build a high-performance user behavior analytics platform used by millions. You’ll own data accuracy and efficiency, develop AI-forward features, and design scalable distributed services on Azure. Based in Redmond, this role requires 4+ ye...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer (Kotlin)
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Senior Software Engineer (Kotlin) sought by hyperexponential, a high-growth AI startup backed by a16z. Build scalable, cloud-native data systems on AWS using Terraform and Kotlin. You will design distributed analytics infrastructure and deliver customer-facing features for a $7 trillion insurance...
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United Kingdom , London
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Not provided
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hyperexponential
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Senior Software Engineer
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Senior Software Engineer sought to design and scale validation platforms for system-level confidence. This hands-on role requires 5+ years building distributed systems, Python/JavaScript expertise, and AWS experience. You will develop cloud-native services, APIs, and automation tooling for CI-int...
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India
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SimpliSafe
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Senior Software Engineer
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Senior Software Engineer sought by a London health-tech scale-up to scale a platform used by 100k+ customers. You’ll own problems end-to-end, working across Python backend, React/TypeScript frontend, and AWS infrastructure. Ideal candidates have 5+ years experience, actively use AI in their workf...
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United Kingdom , London
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100000.00 GBP / Year
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Orbis Consultants
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Senior Software Engineer, MediaWiki
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Join the Wikimedia Foundation as a Senior Software Engineer on the MediaWiki Platform team. You will enhance the core open-source platform powering Wikipedia, focusing on performance, scalability, and reliability. We seek backend engineering expertise, strong system design skills, and experience ...
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United States
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113082.00 - 175725.00 USD / Year
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Wikimedia Foundation
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Senior Software Engineer
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Join a greenfield AI startup in London redefining innovation discovery and protection. As a Senior Software Engineer, you’ll build production systems from scratch using Java, TypeScript, or Python, integrate with LLMs, and collaborate directly with founders. No legacy code or bureaucracy—just fas...
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United Kingdom , London
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120000.00 - 150000.00 GBP / Year
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Linux Recruit
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Senior Software Development Engineer
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Senior Software Development Engineer sought by CVS Health Digital to drive backend innovation using Java, Spring Boot, and microservices. You will design complex systems, integrate cloud-native services on GCP, and streamline CI/CD pipelines. This hybrid role in Buffalo Grove or Richardson offers...
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United States , Buffalo Grove; Richardson
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92700.00 - 203940.00 USD / Year
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CVS Health
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Senior Software Engineering-CoreAI
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Senior Software Engineering role at Microsoft CoreAI in Redmond, WA. Design and develop foundational platforms for Generative AI, including agent tooling, authentication, and control plane APIs. Requires 4+ years experience in C, C++, C#, Java, JavaScript, or Python, plus expertise in large-scale...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer - Margin Technology - Assistant Vice President
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Senior Software Engineer (AVP) sought for Citi’s Margin Technology team in London. You will build high-impact financial systems using Java, React, and Python, with expertise in RESTful APIs, Spring, and TDD. Ideal candidates have investment banking experience and knowledge of AWS, Kafka, or Kuber...
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United Kingdom , London
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Citi
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Senior Software Engineer (React)
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Senior Software Engineer (React) sought to build intuitive, high-performance UIs for cloud-based industrial AI solutions. You will lead technical design, develop complex data visualizations, and define front-end best practices. Requires 7+ years experience, expert TypeScript, and deep React exper...
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Poland , Rzeszów
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Not provided
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Edvantis
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design and optimize scalable data pipelines using Apache Spark, Airflow, and Python/Java. You will architect high-performance data ingress/egress systems for analytics workloads. Requires expertise in distributed processing, Linux CLI, Bash...
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United States , Annapolis Junction
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2HB
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Senior Software Engineer
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Senior Software Engineer needed in Annapolis Junction to design, sustain, and troubleshoot complex operational data flows. You will manage data storage, transport, security, and compliance while performing exploratory analysis to clean and transform raw data. Requires a Master’s degree plus 5 yea...
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United States , Annapolis Junction
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2HB
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Senior Software Engineer - Test Automation/Java
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Senior Software Engineer – Test Automation (Java) role in Warsaw, Poland. Join Mastercard's Developer Experience team to build and maintain high-quality automated tests and frameworks. Requires 5+ years of experience, strong Java skills, and expertise in API, UI, and distributed systems testing. ...
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Poland , Warsaw
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Mastercard
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Senior CAM Software Engineer
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Senior CAM Software Engineer sought in White River Junction, VT to lead development of advanced manufacturing software for complex turbomachinery. Requires 5+ years of C++ and Python experience, plus expertise in geometric modeling and CNC machining. Drive multi-axis toolpath programming, mentor ...
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United States , White River Junction, VT
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100000.00 - 130000.00 USD / Year
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Concepts NREC
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Senior Software Engineer (Python)
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Senior Software Engineer (Python) sought to build core back-end systems for cloud-based industrial AI solutions. You will design scalable, multi-tenant SaaS platforms using Python, FastAPI, and PostgreSQL, deploying to Kubernetes on Azure. This remote-first role in Poland offers flexible hours, c...
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Poland
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Edvantis
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Senior Software Engineer
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Join Microsoft’s OneDrive-SharePoint team in Noida as a Senior Software Engineer. You’ll solve cloud-scale challenges for 200M+ MAU using C#, .NET, or Python. Lead full-stack development, mentor juniors, and influence M365’s roadmap. Requires 8+ years’ experience, agile skills, and Azure knowledg...
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India , Noida
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Not provided
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft as a Senior Software Engineer in Redmond, WA, to shape the future of OneDrive and SharePoint. Design scalable systems for cloud migration, enhance core performance, and ensure zero customer impact. Requires a BS in CS or equivalent with 4+ years in C++, C#, Java, or Python. Drive b...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Senior Software Engineer
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Join Microsoft Security as a Senior Software Engineer in Redmond, WA. Design and ship core security capabilities with C, C++, C#, Java, JavaScript, or Python. Drive least-privilege and data-protection solutions in high-throughput, multi-tenant environments. Requires a Bachelor’s in CS + 4 years’ ...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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About the Senior Software Engineer - Ads role

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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