Senior Software Engineer, Mobile Tech Lead

ZoomInfo Technologies LLC; Bethesda, Waltham (MD, MA); Hybrid; USD 140,000 - 220,000; Full time

Job summary

ZoomInfo, a leading AI-powered GTM platform, is seeking an experienced Mobile Engineer to design, build, and maintain high-quality React Native features across our iOS and Android apps. You will collaborate with product managers, designers, and backend engineers to deliver scalable, reliable experiences.

You will mentor teammates, participate in code reviews, and stay ahead of mobile trends to continuously improve performance and reliability.

Qualifications

• 6+ years in mobile app development focusing on React Native.
• Proficient in JavaScript and TypeScript; Redux or MobX experience.
• Experience building production-grade React Native apps for iOS and Android.
• Hands-on testing with Jest and React Native Testing Library; test-driven development.
• Strong cross-functional collaboration and problem-solving skills.

Responsibilities

• Design, develop, and maintain React Native features across mobile apps.
• Collaborate with product, UI/UX, and backend teams to translate requirements into features.
• Lead code reviews and maintain high technical standards across projects.
• Diagnose and resolve performance issues and memory bottlenecks.
• Mentor junior engineers and contribute to a strong engineering culture.
• Evaluate new React Native advancements and apply improvements to the platform.

Skills

React Native

JavaScript/TypeScript

Jest testing

Code reviews

Collaboration

Tools

Redux

MobX

Node.js

GraphQL

REST APIs

CI/CD

Job description

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.

Our dynamic mobile team is at the forefront of developing and maintaining our suite of cutting‑edge mobile applications. We are dedicated to delivering exceptional user experiences and expanding the capabilities of our mobile platform to include innovative features like agentic chat and advanced workflows. We are a fast‑paced, collaborative, and innovative team that values clean code, continuous learning, and pushing the boundaries of mobile technology.

What You’ll Do

• Design, develop, and maintain high-quality features across multiple production mobile applications using React Native, with a focus on performance, responsiveness, and reliability
• Partner closely with product managers, UI/UX designers, and backend engineers to translate requirements into well‑architected, shippable features
• Write clean, maintainable, and testable code using JavaScript and TypeScript, applying architectural patterns that support scale across iOS and Android
• Lead and actively participate in code reviews, setting a high technical bar and sharing knowledge to elevate the broader engineering team
• Diagnose and resolve complex bugs and performance issues — identifying root causes and implementing durable solutions
• Mentor junior engineers, invest in their growth, and contribute to a strong, inclusive engineering culture
• Evaluate emerging React Native advancements and mobile development trends, and apply relevant innovations to continuously improve our platform

What You Bring

Must Have

• 6+ years of experience in mobile application development, with a strong focus on React Native, or an equivalent combination of education and hands‑on experience
• Strong proficiency in JavaScript and TypeScript, including experience with state management libraries such as Redux or MobX
• Demonstrated experience building and maintaining complex, production‑grade React Native applications across iOS and Android
• Hands‑on experience with testing frameworks (e.g., Jest, React Native Testing Library) and a commitment to test‑driven development practices
• Strong cross‑functional collaboration, communication, and analytical problem‑solving skills

Preferred

• Familiarity with RESTful APIs, GraphQL, and asynchronous programming patterns
• Working knowledge of Node.js for build tooling, scripting, or backend‑for‑frontend (BFF) integrations
• Experience with CI/CD pipelines for mobile applications and automated deployment processes
• Experience with mobile performance optimization, including memory management and battery efficiency

Bonus Points:

• Familiarity with CI/CD pipelines for mobile applications and automated deployment processes.
• Experience with performance optimization, memory management, and battery usage for mobile apps.

#LI-SK

#LI-Hybrid

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.

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), the all‑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.