Senior Software Engineer - Platform Integrations

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.

At ZoomInfo, we encourage creativity, value innovation, demand teamwork, expect accountability and cherish results. We value your take charge, take initiative, get stuff done attitude and will help you unlock your growth potential. One great choice can change everything. Thrive with us at ZoomInfo.

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 Will Do:

• Design, build, and maintain scalable backend services using Node.js (NestJS). Java (Spring Boot) is a plus

• Develop and manage our platform integrations layer, handling connectivity, data ingestion, and exports between ZoomInfo's data layer and third-party integrations

• Design systems for reliable job execution, retries, state management, and long-running processes

• Implement orchestration patterns for complex, multi-step business processes

• Design and maintain APIs and internal services that integrate with external systems

• Build observability into systems (logging, tracing, metrics) to monitor integration health and performance

• Ensure high availability, fault tolerance, and scalability of backend systems handling large volumes of events

• Optimize system performance, throughput, and latency across distributed systems

• Troubleshoot and resolve production issues in complex, asynchronous systems

• Lead medium to large-scale feature development, working independently while coordinating with cross-functional teams

• Collaborate with product and platform teams to define integration requirements and execution guarantees (SLAs/SLOs)

• Participate in agile development processes, sprint planning, and technical discussions

• Provide technical mentorship and conduct thorough code reviews to elevate team capabilities

• Stay current with emerging technologies and evaluate new tools for potential adoption

• Support production systems through monitoring, troubleshooting, and reliability improvements

What You Bring:

• Bachelor's degree in Computer Science, related field, or equivalent experience

• 5+ years of software engineering experience with a focus on backend systems

• Strong experience with Java (Spring Boot) and/or Node.js (NestJS)

• Experience building integrations with CRM or MAP platforms such as Salesforce, HubSpot, or Microsoft Dynamics 365

• Familiarity with no-code/low-code integration platforms (e.g., Fivetran, Zapier, or similar)

• Solid understanding of authentication and authorization protocols including OAuth 2.0, OIDC, SAML, and JWT

• Experience with third-party API patterns — rate limiting, pagination, error handling, and data transformation pipelines

• Proficiency with MongoDB and comfort working across relational and NoSQL data stores

• Experience designing and implementing RESTful and webhook-based APIs with strong grasp of versioning, reliability, and backward compatibility

• Solid understanding of software architecture patterns, cloud platforms, databases, and distributed systems concepts

• Proven experience with performance optimization, security best practices, and scalable system design

• Demonstrated ability to write clean, maintainable, production-quality code and conduct effective code reviews

• Strong problem-solving skills with the ability to debug complex technical issues and implement robust solutions

• Excellent communication skills for collaborating with technical and non-technical stakeholders

• Experience with agile development methodologies, version control systems, and CI/CD practices

This role is a hybrid position, with the option to work from home on Mondays & Fridays.

The US base salary range for this position is $140,000.00 - $200,000.00 + variable compensation + benefits.

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.

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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.