Senior Software Engineer, Full-Stack | Patching

NinjaOne provides a unified IT operations platform for endpoint management, autonomous patching, backup, and remote access. The Senior Full-Stack Software Engineer will join the Patching team to develop and maintain scalable backend Java/Kotlin services and React-based interfaces for discovering, packaging, and deploying software patches across managed endpoints.

Responsibilities:

• Extend, and maintain patch and software definitions across supported OS platforms and third-party applications
• Java and Kotlin backend development to expose patch management platform functions for extensibility
• Build and maintain React-based UI components for the patching workflows and dashboards customers rely on
• Collaborate with the AI workflow, server, and platform teams to achieve the Patching team's mission of reliable, scalable patch delivery
• Participate in architecture and design reviews to build high-quality, scalable, API-first software that can reliably patch endpoints at scale
• Troubleshoot production issues across the technical stack using logs, metrics, and traces — including patch deployment failures and edge cases across diverse endpoint environments
• Participate in code reviews, document processes thoroughly, and lead cross-team initiatives
• Other duties as needed

Requirements:

• Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or equivalent work experience
• 10+ years of experience in Java software development for product applications, or equivalent, with solid expertise in Kotlin
• 2+ years of experience with React for front-end development; comfort building UI components is expected, but this is not a design-system-owner role
• 4+ years of experience working with highly scalable software systems
• Experience leveraging AI tooling to accelerate software development
• Working knowledge of a breadth of OOP design principles; expertise in scaling data structures and object-oriented design
• Knowledge of API best practices and REST service development using frameworks like Jersey or Spring
• Relational database design and development experience
• Experience with both client- and server-side development for responsive messaging
• Caching systems expertise
• Expert knowledge of quality testing practices, including front-end testing frameworks
• Strong written and verbal communication skills
• We are flexible on remote working from home, if you are located in the USA and reside in one of the following states: CA, CO, CT, FL, GA, *IL, KS, ME, MA, NJ, NC, NY, OR, TN, TX, VA, and WA
• This position is NOT eligible for Visa sponsorship
• Due to operational policies, NinjaOne is unable to hire for this role within the city limits of Chicago. We will consider all qualified candidates who reside outside of the city proper or are willing to self-relocate
• Python experience is a plus but not required