> Markdown version of [/jobs/ext/2604863-principal-software-engineer](https://www.wearedevelopers.com/jobs/ext/2604863-principal-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** ZoomInfo Technologies Inc. - **Location:** Bethesda, MD, United States (Remote available) - **Experience:** Expert - **Salary:** $163,800.0 - $257,400.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Big Data, BigTable, Mobile Application Development, Databases, Data Infrastructure, Cursor (Graphical User Interface Elements), Distributed Systems, Amazon DynamoDB, Python (Programming Language), Machine Learning, Automation of Marketing, Memcached, Open Source Technology, Software Engineering, SQL Databases, Data Streaming, Web Services, Large Language Models, Backend, Build Management, Low Latency, Complex Event Processing, Apache Kafka, Vertica, GPT, Data Pipelines, Golang, Microservices - **Published:** August 28, 2026 - **Apply:** https://www.dice.com/job-detail/3d93cbc9-4225-4f97-9cd8-51e1a872f197 ## About the Role * 8+ years of backend, data, or infrastructure engineering experience, or equivalent impact and leadership. * Strong experience in at least one of the following: * Distributed systems engineering (e.g., building low latency high and throughput APIs, scalable microservices, event processing pipelines) * Big data infrastructure (e.g., streaming, warehousing, low-latency storage at scale) * Applied AI/ML, including use of LLMs for extraction, classification, or reasoning tasks Proficiency in one or more core languages: Java, Go, Python Solid grasp of SQL and large-scale data modeling Familiarity with databases and tools such as: ClickHouse, DynamoDB, Bigtable, Memcached, Kafka, Kinesis, Firehose, Airflow, SnowflakeAI-Native Development Mindset * Comfortable using LLMs as part of your development workflow-whether via tools like Copilot, Cursor, ChatGPT, Claude, or others-to boost productivity, explore architecture ideas, and rapidly prototype. * Skilled at designing and implementing LLM-powered systems such as RAG pipelines, agent frameworks (e.g., LangGraph), or intelligent workflows that reason across large datasets in real time. Bonus Points * Experience in ad tech, real-time bidding (RTB), or programmatic systems * Background in identity resolution, attribution, or behavioral analytics at scale * Contributions to open source in ML, infrastructure, or data tooling * Strong product instincts and a passion for building tools that drive meaningful outcomes #LI-SK1 ## Description ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You'll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact and a culture that backs your ambition, you won't just contribute. You'll make things happen-fast. As a Principal Engineer on our Advertising, Company Intelligence, and Intent team, you'll help design and implement the core systems that power our real-time marketing platform. From high-throughput ad infrastructure to large-scale identity resolution and intelligent systems enhanced by LLMs, push the boundaries of scale, intelligence, and speed-and deliver real-world business impact. You'll be joining a team with a broad range of ambitious, technically deep projects-from APIs that process tens of billions of events per day, to new buyer intent algorithms powered by LLMs, to a unified B2B identity graph. Depending on your strengths and interests, you'll be matched to the initiatives where you can have the greatest impact. This is a high-growth, high-ownership environment operating at the edge of what's possible in modern software engineering, data infrastructure, and applied AI. What You'll Do * Design and build distributed systems that process, enrich, and respond to billions of behavioral events per day in real time * Develop high-performance APIs and services that support advertising, identity, and intent features across the Marketing Platform * Leverage machine learning and large language models (LLMs) to analyze behavioral data, classify content, extract signals, and enable intelligent decision-making * Build intelligent agents using frameworks like LangGraph or MCP to reason over data and power user-facing insights * Design and operate data pipelines using tools like Kafka, Kinesis, and ClickHouse to support both streaming and batch workloads * Drive quality, performance, scalability, and observability across all systems you own * Collaborate cross-functionally with product managers, data scientists, and engineers to deliver customer-facing features and internal tooling * Contribute to technical leadership and mentorship of teammates ## Related Videos - [ Evaluating AI models for code comprehension](https://www.wearedevelopers.com/videos/1462-evaluating-ai-models-for-code-comprehension) - [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) - [Coffee with Developers - Maria Apazoglou](https://www.wearedevelopers.com/videos/1209-coffee-with-developers-maria-apazoglou) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)