Principal Software Engineer, ZoomInfo
$163.8-257.4k
More information about location
Market intelligence and contact details database
Open for applications
Market intelligence and contact details database
1001+ employees
Open for applications
$163.8-257.4k
More information about location
1001+ employees
Company mission
To unlock the growth potential of professionals and businesses with a modern end-to-end revenue operating system.
Role
Who you are
- Deep GraphQL expertise: schema design, resolvers, federation, subscriptions, and performance optimization. Experience with GraphQL Yoga or Apollo Server (transferable skills)
- Strong Node.js and TypeScript skills for API services and developer tooling; Go experience for backend and infrastructure work
- Experience securing customer-facing APIs, OAuth 2.0, JWT, fine-grained authorization, rate limiting
- Familiarity with large-scale data systems; exposure to BigTable, BigQuery, or Solr is a plus
- Experience building developer-facing SDKs or API tooling. You think about the API consumer, not just the implementation
- Familiarity with AI coding tools (Claude, GitHub Copilot); experience with AI Agents or MCP tooling is a bonus
- Clear communicator who can drive technical decisions and bring along both engineering and non-engineering stakeholders
Desirable
- 8+ years of software engineering experience, with a focus on production-grade, customer-facing APIs at scale
- Prior experience owning a developer-facing API platform at a SaaS or data company
- Bachelor's or advanced degree in Computer Science, Engineering, or a related field
What the job involves
- We are seeking an experienced Principal Software Engineer to lead the design and development of ZoomInfo's customer-facing GraphQL API platform, built on top of our industry-leading Go-to-Market (GTM) data assets
- You will be a technical anchor for a collaborative engineering team, setting architectural direction for how enterprise customers and partners programmatically access the world's most comprehensive B2B intelligence
- This is a high-impact individual contributor leadership role where your decisions directly shape platform quality, scalability, and customer success
- Architect, design, and own the end-to-end development of ZoomInfo's customer-facing GraphQL APIs, ensuring high availability, low latency, and developer-friendly experiences
- Define schema design standards, versioning, deprecation, and backward-compatible evolution across product surfaces
- Work with product managers and data engineers to expose ZoomInfo's GTM data assets (BigTable, BigQuery, Solr) through well-structured, queryable API surfaces
- Implement and enforce API security, OAuth 2.0, JWT, RBAC, rate limiting, and query complexity controls
- Maintain production reliability through CI/CD pipelines (Jenkins, ArgoCD) and observability practices using Datadog
- Use AI tooling (Claude, GitHub Copilot) as part of your daily workflow and help the team do the same responsibly
- Lead code and design reviews, mentor senior engineers, and contribute to the engineering roadmap
Our take
It was only a few years ago when B2B sales teams relied on warm introductions and contact books. Now, cloud-based CRM, automation and Big Data are critical tools for any selling process. ZoomInfo’s B2B contact base has played a massive part in that journey.
The company primarily helps salespeople find potential customers. Crucially, ZoomInfo then leverages technology to help make that approach as successful as possible. Think contact details of the most likely budget holder at that company, signal for when and how to approach and crucial updates on the company’s fortunes.
ZoomInfo has grown significantly over the previous few years and is now shifting its approach to pursue more inorganic growth through mergers and acquisitions, acquiring several companies in 2022, including the job recruitment website Comparably.
The risk for ZoomInfo is that these moves represent expansion beyond its traditional strengths in top-of-funnel customer acquisition. The company will need to ensure that it maximises synergies in order to win in these markets. The company has expanded operations in India and is set to see further expansion, as indicated by its appearance on the Fortune Future 50 list of robust and growing companies in 2023.
Freddie
Company Specialist at Welcome to the Jungle
Insights
7% employee growth in 12 months
Company
Funding (1 round)
Jul 2004
$7m
SERIES A
Total funding: $7m
Company benefits
- Benefits for the Best You - 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
- Base Pay - We attract and retain the best talent with competitive compensation that aligns with industry benchmarks and merit programs yearly for promotions and salary increases based on performance, time in role, and position to market
- Bonus - When you crush it, we like to celebrate! Bonuses are awarded annually in connection with company and individual performance
- Equity - We offer each employee a generous equity award in the form of RSUs, so they can directly feel the results and success of their hard work
- Vacation & Time Off - We know everyone's needs are different so we offer flexible paid time off plans including an unlimited vacation option for many employees
- Hybrid Working Model - We offer flexible hybrid remote working models to promote equity, employee wellness, and work life balance
Company HQ
Vancouver
Leadership
Henry Schuck
(Founder & CEO)Originally founded DiscoverOrg which went on to become ZoomInfo through an acquisition in 2019.
Salary benchmarks
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