Senior Software Engineer

ZoomInfo Technologies LLC; Bethesda (MD); On-site; USD 140,000 - 220,000; Full time

Job summary

ZoomInfo Technologies LLC is seeking a senior backend engineer to own the platform integrations layer end‑to‑end, building reliable connections, data ingestion/exports, and complex orchestration for long‑running processes.

You will design and maintain inbound/outbound integrations with Salesforce and other APIs, and build high‑volume data services, RESTful and webhook APIs with robust patterns for rate limiting, errors, and versioning.

Qualifications

• 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
• Experience integrating with external/third‑party APIs and building inbound/outbound integrations
• Experience building high‑volume data services with optimized processing time
• Strong problem‑solving and analytical skills; debugging complex issues
• Understanding of OAuth 2.0, OIDC, SAML, and JWT authentication/authorization
• Proficiency with MongoDB; comfort with relational/NoSQL; React is a plus
• Strong communicator and cross‑functional collaborator

Responsibilities

• Own the platform integrations layer end‑to‑end including connectivity, data ingestion/exports, and orchestration for long‑running processes
• Build and maintain inbound and outbound integrations with third‑party platforms (e.g., Salesforce)
• Design and implement in‑house services for high‑volume data processing under tight time constraints
• Design and maintain RESTful and webhook‑based APIs with pagination, error handling, versioning, and backward compatibility
• Collaborate with product and platform teams to define integration requirements and SLAs/SLOs
• Build observability (logging, tracing, metrics) into integration systems and monitor production reliability
• Lead medium/large feature development within agile processes and conduct code reviews
• Stay current with emerging technologies and evaluate new tools for potential adoption

Skills

Backend systems

Node.js

NestJS

JavaScript

TypeScript

Java

Spring Boot

APIs

Data processing

OAuth 2.0

OIDC

SAML

JWT

MongoDB

React

Communication

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 will make things happen–fast.

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 is a plus
• Strong communicator, comfortable leading cross‑functional collaboration with both technical and non‑technical stakeholders

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.

$140,000 – $220,000 USD

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.

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.