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Zone & Co is an ERP-native AI platform for financial operations, purpose-built for organizations running on Oracle NetSuite. The company serves over 4,500 customers worldwide, automating financial workflows across Quote-to-Cash, Procure-to-Pay, Treasury, Payroll Management, and Record-to-Report processes.
As a Senior Software Engineer on the ZoneBilling team, you will build and enhance SuiteApps that serve thousands of businesses globally. This is a hands-on development role with significant impact on both the product and the engineering organization. You'll work in a small, focused team where your contributions directly influence company direction and customer outcomes.
Key responsibilities include:
**Software Development:** Build, enhance, and scale the ZoneBilling application using SuiteScript, SQL, and modern JavaScript. Write clean, maintainable, and well-tested code leveraging the company's proprietary SDK built on top of NetSuite with TypeScript, linting, automated testing, and documentation generation.
**Testing & Debugging:** Design and execute comprehensive test cases to ensure feature reliability and performance. Write and maintain unit tests to validate functionality and prevent regressions. Troubleshoot, debug, and resolve bugs in existing functionality.
**Team Collaboration:** Partner with the principal architect, other engineers, product managers, and QA to define and refine features. Participate in code reviews and contribute to a culture of learning and improvement. Share development best practices and tools across teams.
**Documentation & Continuous Improvement:** Document systems, architecture, and features clearly. Stay current with new tools and techniques, and suggest improvements to development processes.
The company operates as a high-velocity, fully remote, global team with a high-trust, low-micromanagement culture. You'll have autonomy to innovate and scale your professional impact.
**Requirements:**
- 5+ years of professional full-stack software development experience
- Deep business domain knowledge of billing and revenue, or strong interest in learning the domain, or fintech experience
- Strong proficiency in JavaScript and/or SuiteScript, with experience using modern frontend frameworks (React), SQL, and REST/SOAP APIs
- Comfortable working in remote, distributed teams using modern development tools (Git, automated testing, CI/CD pipelines, GenAI tooling)
- Demonstrable experience with NetSuite SuiteCloud development and related technologies
- Solid understanding of web services (REST, SOAP), data formats (JSON, XML), Object-Oriented Programming, SOLID Principles, and Design Patterns
- Familiarity with HTML/CSS and general web development fundamentals
- Entrepreneurial mindset—proactive, curious, and ready to learn
**Nice-to-haves:**
- TypeScript experience
- Node.js or Java experience
- Background working with ERP, HRIS, Payroll, Finance, or CRM systems
