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
About Us
ZoomInfo (NASDAQ: GTM), the all-in-one AI GTM platform, enables sales, marketing, and customer success teams to execute their go-to-market strategy with confidence. Powered by the industry's most comprehensive B2B data, including more than 100 million companies, 500 million contacts, and billions of signals, ZoomInfo delivers the intelligence, automation, and integrations that modern revenue teams need to identify, engage, and convert their best buyers.
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. ZoomInfo does not administer lie detector tests to applicants in any location.

Work arrangement
Hybrid