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.

As a Senior Software Engineer on the Integrations team, you'll design and build the systems that connect ZoomInfo's platform to the ecosystem of CRM, MAP, and external eco-systems that our customers depend on. You'll work on highly scalable backend services that power reliable, real-time data sync and API integrations across millions of records — enabling seamless connectivity between ZoomInfo and platforms like Salesforce, HubSpot, and Microsoft Dynamics 365.

You'll leverage technologies like Kafka, Confluent Cloud, Node.js/NestJS, and modern API and authentication standards to build resilient, observable, and fault-tolerant integration services. Your work will be foundational to how ZoomInfo's data reaches customers and connects with the tools at the center of their go-to-market stack.

Our engineering culture values diversity, intellectual curiosity, problem-solving, and openness. We encourage collaboration, big thinking, and calculated risk-taking in a blame-free environment. You'll have the autonomy to work on meaningful projects while receiving the support and mentorship needed to grow your career.

What You'll Do

• Own the platform integrations layer end-to-end — building reliable connectivity, data ingestion/exports, and orchestration for complex, multi-step, long-running processes (including retries and state management)
• Build and maintain both inbound and outbound integrations with third-party platforms (e.g., Salesforce and other external/open APIs)
• Design and implement in-house services capable of processing large volumes of data under tight time constraints, optimizing for throughput and latency
• Design and maintain RESTful and webhook-based APIs, applying strong patterns for rate limiting, pagination, error handling, versioning, and backward compatibility
• Collaborate with product and platform teams to define integration requirements and execution guarantees (SLAs/SLOs)
• Build observability (logging, tracing, metrics) into integration systems, and use it to monitor, troubleshoot, and continuously improve production reliability
• Lead medium/large feature development independently within agile processes, mentoring engineers and conducting code reviews along the way
• Stay current with emerging technologies and evaluate new tools for potential adoption

What You Bring

• 5+ years of software engineering experience with a focus on backend systems
• Strong experience with Node.js (NestJS), JavaScript, and TypeScript; Java (Spring Boot) is a plus
• Proven experience integrating with external/third-party APIs, building both inbound and outbound integrations (any platform — pattern/concept experience is transferable)
• Demonstrated experience building high-volume data services — e.g., optimizing data processing/ingestion time under real-world constraints
• Strong problem-solving and analytical skills, with the ability to debug complex technical issues and implement robust solutions
• Solid understanding of authentication and authorization protocols, including OAuth 2.0, OIDC, SAML, and JWT
• Proficiency with MongoDB and comfort working across relational and NoSQL data stores; familiarity with React a plus
• Strong communicator, comfortable leading cross-functional collaboration with both technical and non-technical stakeholders

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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.

Below is the US base salary for this position. Additional compensation such as Bonus, Commission, Equity and other benefits may also apply.

$140,000—$220,000 USD

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.

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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. ZoomInfo does not administer lie detector tests to applicants in any location.