Senior Software Engineer

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.

• Build, enhance, and optimize high-throughput backend services and data-processing systems using Java.
• Process and transform large volumes of fragmented, lossy data into accurate contact entities.
• Design and implement scalable solutions for entity resolution, attribute selection, and contact publication.
• Improve employment accuracy by helping identify stale jobs and determine when contacts are no longer associated with a company.
• Help address over-combination issues by improving how data fragments are correctly grouped into individual contact profiles.
• Develop rules, testing frameworks, and scalable approaches to infer data quality without relying on exhaustive manual review.
• Work with systems and services that support approximately 400 million contact profiles.
• Collaborate with data scientists on longer-term initiatives involving data quality, profiling, and entity resolution.
• Partner with Data Tools, Match, Company, and other data engineering teams to deliver cross-functional solutions.
• Contribute to technical strategy, architecture, code quality, performance, and scalability across the Person Data platform.
• Participate in sprint planning and independently select work based on your expertise and areas you want to develop.

What We’re Looking For

• Significant professional experience in software engineering, with strong experience building backend systems.
• Deep expertise in Java and strong software engineering fundamentals.
• Experience designing, building, and scaling high-throughput or distributed systems.
• Experience working with large-scale data-processing pipelines and big data systems.
• Experience with Kafka or similar event-streaming technologies.
• Ability to write efficient, reliable, maintainable, and well-tested code.
• Experience modifying and improving existing production systems, including complex or legacy codebases.
• Strong problem-solving skills and an ability to develop scalable rules, testing frameworks, and data-quality solutions.
• Excellent collaboration and communication skills.
• Bachelor’s degree in Computer Science, Engineering, or a related technical field, or equivalent practical experience.

Nice to Have

• Experience with GCP or GCS.
• Experience with BigQuery.
• Experience with Solr or Elasticsearch.
• Familiarity with entity resolution, match-merge systems, record linkage, or data deduplication.
• Experience working with employment, professional, CRM, or other contact-related data.
• Experience with lossy, incomplete, or fragmented datasets.
• Experience partnering with data science teams to integrate analytical or machine learning initiatives into production workflows.
• Experience in ad tech, CRM, marketing technology, or another high-volume, data-driven environment.

Actual compensation offered will be based on factors such as the candidate’s work location, qualifications, skills, experience and/or training. Your recruiter can share more information about the specific salary range for your desired work location during the hiring process. We want our employees and their families to thrive.

In addition to comprehensive benefits we offer holistic mind, body and lifestyle programs designed for overall well-being. Learn more about ZoomInfo benefits here.

About us:

ZoomInfo (NASDAQ: GTM) is the Go-To-Market Intelligence Platform that empowers businesses to grow faster with AI-ready insights, trusted data, and advanced automation. Its solutions provide more than 35,000 companies worldwide with a complete view of their customers, making every seller their best seller.

ZoomInfo is committed to protecting your privacy when you apply for jobs with us. Please review our Job Applicant Privacy Notice for more details on how we handle your personal information.

ZoomInfo may use a software-based assessment as part of the recruitment process. More information about this tool, including the results of the most recent bias audit, is available here.

ZoomInfo is proud to be an equal opportunity employer, hiring based on qualifications, merit, and business needs, and does not discriminate based on protected status. We welcome all applicants and are committed to providing equal employment opportunities regardless of sex, race, age, color, national origin, sexual orientation, gender identity, marital status, disability status, religion, protected military or veteran status, medical condition, or any other characteristic protected by applicable law. We also consider qualified candidates with criminal histories in accordance with legal requirements.

For Massachusetts Applicants: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability. does not administer lie detector tests to applicants in any location.

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