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.

Role summary:
Build, evolve, and operate scalable web applications for ZoomInfo. You’ll work primarily with React, TypeScript, JavaScript, HTML, and CSS to deliver high-quality user experiences, while also collaborating with backend services and contributing to Node.js-based integrations where needed. The role requires a strong focus on performance, reliability, maintainability, and clean engineering practices.

What you’ll do:

• Design, build, and maintain scalable, high-quality web applications using React, TypeScript, JavaScript, HTML, and CSS
• Translate product and UX requirements into clean, reusable, and maintainable frontend architecture and components
• Build reusable UI components and shared libraries with a focus on consistency, accessibility, and performance
• Integrate frontend applications with REST/GraphQL APIs and work with backend engineers to ensure robustness, security, and data consistency
• Contribute to Node.js-based backend integrations and APIs where needed, especially for frontend-facing use cases
• Optimize application performance through lazy loading, code splitting, caching, rendering improvements, and debugging production issues
• Write production-ready code with unit/integration tests; participate in code reviews and maintain strong engineering standards
• Investigate and resolve issues reported in production, ensuring high availability and a smooth user experience
• Work with CI/CD pipelines, containerized environments, and cloud-based deployments in collaboration with platform/backend teams
• Mentor junior engineers and contribute to shared frontend standards, best practices, and technical design discussions

What you bring:

• 7+ years of software engineering experience, including strong hands-on experience building frontend applications with React and TypeScript
• Strong proficiency in JavaScript, TypeScript, HTML, CSS, and modern frontend development practices
• Solid understanding of frontend architecture, state management, component design, performance optimization, and responsive UI development
• Experience integrating with RESTful APIs and/or GraphQL APIs in production systems
• Working knowledge of Node.js and ability to contribute to lightweight backend/API development when needed
• Strong understanding of frontend testing practices, including unit and integration testing
• Experience debugging production issues and improving application performance, reliability, and maintainability
• Familiarity with containerization and cloud environments such as Docker, Kubernetes, AWS, or GCP
• Good understanding of secure coding practices, authentication/authorization flows, and general web security principles
• Strong collaboration and communication skills; ability to work independently and deliver high-quality results in a fast-paced environment
• Experience mentoring junior engineers and contributing to planning, design, and execution of work

Nice to have:

• Experience with Next.js or other modern React frameworks
• Familiarity with Node.js/TypeScript backend frameworks such as NestJS or Express
• Experience with design systems, shared component libraries, and accessibility standards
• Exposure to observability tools such as Datadog, OpenTelemetry, Grafana, or similar
• Experience with CI/CD tools such as GitHub Actions, Jenkins, or GitLab
• Familiarity with feature flags, API gateways, rate limiting, and frontend performance monitoring
• Experience working on large-scale SaaS products or data-heavy applications

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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.