Senior Software Engineer, Full-Stack | Patching

About the role We are looking for a Senior Full Stack Software Engineer to join our Patching team, the team responsible for how NinjaOne discovers, packages, and deploys OS and third-party software patches across every endpoint we manage. This role is primarily backend-focused Java/Kotlin, with working proficiency in React for the front-end pieces of the patching experience. You'll work closely with the AI workflow, server, and platform teams, as well as product designers and product owners, to extend NinjaOne's patch management capabilities at scale. Location — 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. We have physical offices in Austin, TX and Tampa, FL, if you prefer a hybrid option. What You'll Be Doing 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. About You 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. Python experience is a plus but not required. 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. About Us NinjaOne unifies IT to simplify work for nearly 40,000 customers in 140+ countries. ​ The NinjaOne Unified IT Operations Platform delivers endpoint management, autonomous patching, backup, and remote access in a single console to improve efficiency, increase resilience, and reduce spend. By automating IT and managing all endpoints, organizations give employees a great technology experience at work. NinjaOne is obsessed with customer success and has retained a 98% customer satisfaction score for more than 5 years. What You'll Love A collaborative, kind, and curious community. Flexibility with full-time hybrid remote work. Comprehensive benefits package: medical, dental, and vision insurance. 401(k) plan to help you prepare for your financial future. Unlimited PTO to support your work-life balance. Opportunities for growth and advancement. Additional Information 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. Starting pay depends on a variety of job-related factors, including but not limited to location, market demands, experience, job-related knowledge, and skills. For roles based in California, Colorado, New Jersey, New York, or Washington, the base salary hiring range for this position is $150,000 to $200,000 per year. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, veteran status, or any other status protected by applicable law. We are committed to providing an inclusive and diverse work environment.