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Senior Software Engineer - Ads Jobs

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Senior AI/ML Software Engineer (LLMs)
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Join EvolutionIQ as a Senior AI/ML Software Engineer specializing in LLMs. Design and deploy hybrid AI solutions using Python, LLMs, and RAG for the insurance industry. Enjoy a collaborative NYC-based role with top benefits, including comprehensive healthcare and 401k matching.
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United States , New York
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175000.00 - 225000.00 USD / Year
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EvolutionIQ
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Senior Software Engineer - Engineering Workflow and CI
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Join Mozilla to enhance Firefox development workflows as a Senior Software Engineer. You'll build and optimize CI/CD systems using Python, JavaScript, and cloud services like GCP/AWS. This remote role offers a chance to boost developer productivity globally, supported by great benefits like perfo...
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Mozilla
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Senior Software Engineer - Firefox Enterprise
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Join Mozilla's Firefox Enterprise team as a Senior Software Engineer. Develop and enhance Firefox for large-scale deployments, focusing on OS integration (Windows, macOS, Linux) using C/C++ and Rust. Enjoy a distributed, open-source culture with top benefits including performance bonuses, compreh...
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Mozilla
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Senior Software Engineer (Localization)
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Join Mozilla's Localization Team as a Senior Software Engineer. You will develop and maintain key Python/JavaScript tools like Pontoon and moz-l10n libraries, shaping i18n/l10n standards. This role involves collaborating with a global community to enhance Firefox and other products for worldwide ...
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Mozilla
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Go/Java Senior Software Engineer
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Join Citi in Warsaw as a Senior Go/Java Engineer. Build secure, cloud-native developer tools using Go, Java, and modern tech like Kubernetes and AWS. You'll enhance software supply chain security in an agile team. We offer great benefits including private medical care, a pension plan, and strong ...
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Poland , Warsaw
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Citi
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Senior Principal Software Engineer - Linux OS Engineering
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Lead the future of Linux OS engineering on Arm-based platforms as a Senior Principal Software Engineer. This Austin-based role requires 8+ years of expertise in Linux kernel, device drivers, and system optimization using C/C++. Drive platform strategy, engage with the open-source community, and e...
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United States , Austin
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178500.00 - 269500.00 USD / Year
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Dell
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Senior Software Engineer, Backend (Voice Platform)
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Join Cresta's Voice Platform team in Toronto as a Senior Backend Engineer. Design and scale distributed microservices in Go, powering real-time AI-driven voice infrastructure. Lead initiatives in SIP/WebRTC, multilingual pipelines, and cloud reliability. Enjoy comprehensive benefits, wellness sup...
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Canada , Toronto
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Cresta
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IT Senior Engineer, Software
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Seeking a Senior Software Engineer to design and implement new systems and enhance existing ones in East Berlin, US. This role requires 5+ years of experience, expert Azure PaaS knowledge, and full-stack development skills. You will drive the SDLC maturity, working independently in a hybrid envir...
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United States , East Berlin
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123640.00 - 137380.00 USD / Year
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EVERSOURCE
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Senior Software Engineer - Risk (AI & Automation)
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Join Mercury's Risk Engineering team as a Senior Software Engineer specializing in AI & Automation. You will architect and launch agentic AI systems to automate risk and compliance workflows, from KYC to due diligence. This role requires 5+ years of software engineering experience, proven experti...
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United States; Canada , San Francisco, CA; New York, NY; Portland, OR; Remote
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200700.00 - 250900.00 USD / Year
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Mercury
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Senior Software Engineer
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Join our team in St. Louis Park as a Senior Software Engineer. You will develop and modernize cloud-based applications using .NET Core, React/Vue/Angular, and Azure. We seek 5-7 years of experience with full-stack development and CI/CD pipelines. Enjoy comprehensive benefits including medical, de...
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United States , St. Louis Park
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Robert Half
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Senior Software Test Engineer
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Join our team in Bedford as a Senior Software Test Engineer. You will lead testing for medical diagnostic systems, focusing on automation with Python, PyTest, and CI/CD tools like Jenkins. This role requires expertise in embedded device testing and a strong background in Agile/Scrum methodologies...
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United States , Bedford
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werfen
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Senior Software Engineer
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Join a fast-growing, Series B-funded AI startup as a Senior Software Engineer. We seek top-tier talent with full-stack or backend expertise and a proven trajectory at elite tech companies. Drive product development in a dynamic, collaborative environment and receive competitive salary and equity.
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United States
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Orbis Consultants
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Senior Software Engineer
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Join Method to redefine financial connectivity with cutting-edge APIs. As a Senior Software Engineer, you'll build scalable systems in JS/Node/React, handling millions of daily requests. This role offers autonomy, supporting innovation in Fintech from NYC, Austin, or DC.
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United States , New York, NY / Austin, TX / Washington, DC
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185000.00 - 225000.00 USD / Year
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Helpcare AI
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Senior Software Engineer
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Join Taboola in Tel Aviv as a Senior Java Software Engineer. Design and develop large-scale, real-time big data systems handling 140TB daily. Lead technically, mentor a team, and own products end-to-end in a dynamic, startup-like environment. Enjoy a transparent, passionate, and inclusive company...
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Israel , Tel Aviv
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Taboola
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Senior Software Engineer
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Join our backend engineering team in Bengaluru as a Senior Software Engineer. Design scalable services and REST APIs using modern languages like Java or Python. We offer healthcare, learning stipends, and a dynamic, collaborative environment. Experience with microservices and cloud databases is a...
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India , Bengaluru
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EarnIn
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Senior Staff Software Engineer
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Lead the architecture and evolution of a large-scale Search platform as a Senior Staff Software Engineer at Bloomreach. This India-based, virtual-first role requires deep expertise in search systems, Java/Python, and cloud platforms. You will drive technical strategy, mentor engineers, and ensure...
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India
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Bloomreach
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Senior Software Engineer
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Join Bloomreach as a Senior Software Engineer in Slovakia. Design and deliver high-throughput, low-latency systems on a leading AI agentic platform. Utilize your expertise in Go/Python, microservices, and CI/CD within a virtual-first, flexible environment. Enjoy stock units, bonuses, and a signif...
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Slovakia
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4000.00 EUR / Month
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Bloomreach
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Senior Software Engineer
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Join Bloomreach as a Senior Software Engineer in Czechia. Design and deliver high-throughput, low-latency systems on a leading AI agentic platform. Utilize your expertise in Go/Python, microservices, and CI/CD in a virtual-first, flexible environment. Shape the future of autonomous marketing with...
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Czechia
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Bloomreach
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Senior Software Engineer
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Join Optiver in Shanghai as a Senior Software Engineer. Design and deploy low-latency, high-throughput systems for our global trading platform. Collaborate with traders and researchers to solve complex problems and optimize cutting-edge technology. We seek passionate problem-solvers with 5+ years...
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China , Shanghai
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Optiver
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Senior Software Engineer - AI SDK
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Join Temporal's AI SDK team as a Senior Software Engineer. Design and implement core SDK features in Python/TypeScript for reliable AI applications. We seek experts in generative AI, concurrency, and open-source with strong API design skills. Enjoy full benefits, remote work in the US, and shape ...
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United States
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180000.00 - 225000.00 USD / Year
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Temporal
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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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