Senior Software Engineer, Java Backend

About the Role

As a Senior Software Engineer, Java at NinjaOne, you'll play a key role in enhancing our IT Operations product suite by designing and implementing scalable solutions and platform improvements. You'll contribute to new features and support existing functionality, all while ensuring our software meets the high expectations of our customers.

In this role, you’ll be part of a team of engineers and technology experts, delivering mission-critical services that help our customers manage, protect, and maintain millions of endpoints and servers. You will have the opportunity to design and develop high-availability software systems that support our global 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, ME, MA, MD, 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.

We hire the best software engineers, but experience in our stack can’t hurt: NinjaOne is built on Java, Kotlin, C++, Golang 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 is crucial for this role.

Ninja Remote is NinjaOne's remote access and control product. It gives IT teams secure, low-latency connections into managed endpoints at scale, across environments. It's a core piece of NinjaOne, tightly integrated with our broader RMM platform, and relied on daily by IT professionals to troubleshoot, support, and manage fleets of devices remotely.
The team spans C++ agent engineers, UI engineers, and backend engineers, working together on everything from the low-level agent that runs on endpoint devices to the cloud services that negotiate and sustain remote sessions in real time. On the backend side, the focus is on the signaling and session infrastructure that connects technicians to remote endpoints: connection negotiation, session state, streaming data paths, and reliability of communication between the C++ agent and the cloud backend across a distributed, multi-region environment.

What You’ll Be Doing:

• Software Development: Lead the development of large-scale software applications, ensuring high quality and adherence to our quality-first standards.
• Software Architecture & Leadership: Influence critical architectural decisions, ensuring that systems are scalable, maintainable, and aligned with business objectives. Balance technical debt, performance concerns, and scalability with business needs.
• Collaboration & Mentorship: Collaborate with cross-functional teams to align on technical decisions and drive improvements. Mentor junior engineers, providing guidance on best practices and setting technical standards across projects.
• Ownership of Initiatives: Take ownership of technical initiatives, proactively address challenges, and drive improvements based on data reported by support teams.
• Focus on Quality: Advocate for and implement quality assurance practices, ensuring the delivery of robust, high-performance software.
• Other Duties: Contribute to additional responsibilities as needed to support the team’s success.

Qualifications and Requirements:

• Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or equivalent work experience.
• 10+ years of experience in Java software development, particularly for product applications.
• 5+ years of experience with highly scalable systems.
• Proven experience in scaling systems and solving complex system design challenges.
• Strong knowledge of object-oriented programming (OOP) design principles and practices.
• Expertise in API design and RESTful services, with experience using frameworks like Spring.
• Proficient in relational database design and development.
• Experience with caching systems
• Data warehouse exposure and testing/automation tooling a plus

About Us

NinjaOne automates the hardest parts of IT to deliver visibility, security, and control over all endpoints for more than 30,000 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 $160,000 to $200,000 per year.

For roles based in New York, the base salary hiring range for this position is $160,000 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.