ChatGPT Jobs · 10 hours ago
Principal Software Engineer
Boston, MA
Full-time
Hybrid
Senior Level, Lead/Staff
$146K/yr - $195K/yr
5+ years expZoomInfo Technologies LLC is building the next generation of B2B marketing intelligence and is looking for engineers to help shape that future. As a Principal Engineer on the Advertising, Company Intelligence, and Intent team, you will design and implement core systems for their real-time marketing platform.
Computer Software
Responsibilities
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
Qualification
Required
5+ 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, Snowflake
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
Preferred
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
Company
ChatGPT Jobs
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2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase