Senior Software Engineer, Java | Mainline
Confirmed on the employer's own hiring board on Oct 23, 2026. First seen by Alion on Oct 20, 2026. NinjaOne scores A on the Alion truth index.
Description
About the Role
As a Senior Software Engineer on the NinjaOne team, you will contribute to our IT Operations product suite, designing and implementing scalable new solutions and product improvements. Providing clean and optimized coding solutions, you’ll work to develop high quality software applications that exceed our customers’ expectations - seriously our customers love our products.
We are engineers, technology leaders and experts. We create and deliver mission critical services to enable NinjaOne’s customers to administer, protect and maintain millions of endpoints and servers. You will have the opportunity to design and develop high-availability mission critical software systems that support our worldwide operations.
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, MA, ME, NC, NJ, NY, OR, OH, TN, TX, VA, and WA. We have physical offices in Austin, TX and Tampa, FL, if you prefer a hybrid option.
*Onsite interviews may be required for this role.
We hire the best software engineers with experience in our stack: NinjaOne is built onJava, Kotlin, C++, and Postgres, supporting millions of user endpoints and running as a scalable cloud service in AWS. Knowing large-scale datastore bottlenecks, asynchronous application design and client-server architecture will help you standout.
What You’ll be Doing
Java and Kotlin Software Development- use your expertise to contribute to the development of large-scale software applications. Make quality an invariant part of your work and help your fellow engineers continue to meet our quality-first standards.
Committing Code and Shipping Products - you will be one of our most trusted engineers committing code. Responsible for implementing design patterns and working on enterprise level software challenges, in a startup environment. Impact product more hands on than at other companies, building software of scale that runs on millions and millions of endpoints.
Other duties as needed.
About You
Bachelor’s degree in Computer Science, Computer Engineering, Information Technology, or equivalent work experience.
10+ years experience in Java software development for product applications or equivalent. Solid expertise in Kotlin will make you a stand out candidate.
4+ years experience working with highly scalable software systems.
Experience working on systems at scale and finding solutions to scale systems.
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 creating both client and server-side development, for responsive messaging.
Caching systems expertise and experience with Redis will make you a stand-out.
Expert knowledge of quality testing practices.
About Us
NinjaOne automates the hardest parts of IT to deliver visibility, security, and control over all endpoints for more than 40,000 customers. The NinjaOne automated endpoint management platform is proven to increase productivity, reduce security risk, and lower costs for IT teams and managed service providers. NinjaOne is obsessed with customer success and provides free and unlimited onboarding, training, and support. NinjaOne is #1 on G2 in endpoint management, patch management, remote monitoring and management, and mobile device management.
What You’ll Love
We are a collaborative, kind, and curious community.
We honor your flexibility needs with full-time work that is hybrid remote.
We have you covered with our comprehensive benefits package, which includes medical, dental, and vision insurance.
We help you prepare for your financial future with our 401(k) plan.
We prioritize your work-life balance with our unlimited PTO.
We reward your work with opportunity 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 for the successful applicant depends on a variety of job-related factors, including but not limited to location, market demands, experience, job-related knowledge, and skills. The benefits available for this position include medical, dental, vision, 401(k) plan, life insurance coverage and PTO. For roles based in California, Colorado, New Jersey or Washington the base salary hiring range for this position is $140,000 to $200,000 per year.
For roles based in New York, the base salary hiring range for this position is $140,000 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.
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