ZoomInfo

Principal Software Engineer - PA172

ZoomInfo
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3 hours ago
Waltham, MA, USA +2 moreStaff+
H1B Sponsor

Base Salary

$164k - $257k/yr

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 supporting advertising, identity, and intent features.
  • Use machine learning and LLMs to analyze behavioral data, classify content, extract signals, and support intelligent decisions.
  • Build intelligent agents and LLM-powered workflows using frameworks such as LangGraph and MCP.
  • Design and operate streaming and batch data pipelines with Kafka, Kinesis, and ClickHouse.
  • Drive quality, performance, scalability, and observability for owned systems.
  • Collaborate with product managers, data scientists, and engineers on customer-facing features and internal tooling.
  • Provide technical leadership and mentorship to teammates.

Requirements

  • At least 8 years of backend, data, or infrastructure engineering experience, or equivalent impact and leadership.
  • Strong experience in distributed systems engineering, big data infrastructure, or applied AI/ML involving LLMs.
  • Proficiency in one or more of Java, Go, and Python.
  • Strong SQL and large-scale data-modeling skills.
  • Familiarity with ClickHouse, DynamoDB, Bigtable, Memcached, Kafka, Kinesis, Firehose, Airflow, and Snowflake.
  • Experience designing LLM-powered systems such as RAG pipelines, agent frameworks, or intelligent workflows.
  • Comfort using LLM tools such as Copilot, Cursor, ChatGPT, or Claude in the development workflow.
  • Experience in ad tech, real-time bidding, programmatic systems, identity resolution, attribution, or behavioral analytics is a bonus.
  • Open-source contributions in ML, infrastructure, or data tooling are a bonus.

Benefits

  • Comprehensive benefits and holistic mind, body, and lifestyle programs are offered.
  • The position is listed as remote.
  • Additional bonus, commission, equity, and other benefits may apply.

Tech Stack

Amazon DynamoDBApache AirflowApache KafkaClickHouseGoJavaPythonSnowflakeSQL

Categories

AI ApplicationsBackendData Engineering
ZoomInfo

About ZoomInfo

1,001-5,000 employees

ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers. ZoomInfo delivers accurate, real-time data, insights, and technology to more than 35,000 companies worldwide. Businesses use our data and platform to increase efficiency, align sales and marketing teams, and consolidate technology stacks. We are a recognized leader in data privacy, with industry-leading GDPR and CCPA compliance and numerous data security and privacy certifications. For more information about how ZoomInfo helps customers unlock insights, engage customers, and win faster visit: www.zoominfo.com Specialties: GTM platform, GTM strategy, sales intelligence, conversation intelligence, marketing intelligence, sales engagement, contact data, intent data, lead generation, improved prospecting, business information, business contacts, account-based marketing (ABM), data accuracy, database hygiene, and data orchestration.