Senior Full-Stack Engineer (Java/Kotlin, React) — Remote

NinjaOne; Georgia; Hybrid; USD 150,000 - 200,000; Full time

Benefits offered by this job

Hybrid remote work

Medical, dental, and vision insurance

401(k) plan

Unlimited PTO

Opportunities for growth and expansion

Job summary

NinjaOne seeks a Senior Full Stack Software Engineer for its Emerging Products team. The role focuses on backend Java/Kotlin with working proficiency in React/TypeScript, building data-driven products from the ground up.

You will design and implement scalable APIs, optimize data access, and contribute to frontend components and observability, collaborating with data, product, and design teams to deliver enterprise-grade solutions.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Information Technology, or equivalent work experience.
• 10+ years of software development experience building production applications, with strong experience in Java.
• 4+ years of experience working with highly scalable software systems.
• Strong understanding of OOP design principles, data structures, and object-oriented design.
• Knowledge of API best practices and experience developing REST / GraphQL services. gRPC experience is a plus.
• Comfortable writing, analyzing, and troubleshooting SQL with experience in relational database design and development.
• Expert knowledge of software quality and testing practices, including unit, integration, API, and front-end testing.
• 2+ years of experience with React and modern front-end application development.
• Strong TypeScript/JavaScript fundamentals, including using TypeScript to establish maintainable, reusable contracts and clear boundaries across components, APIs, and application layers.
• Strong understanding of HTML, CSS, browser fundamentals, and accessibility, beyond simply working within a React framework.
• Experience building reusable React components and working within established front-end architectures and data-flow patterns.
• Ability to debug and troubleshoot front-end issues, including rendering, network, state-management, and browser-related problems.
• Strong written and verbal communication skills.
• Experience leveraging AI tooling to accelerate software development.

Responsibilities

• Design and build the API and serving layer that powers data-intensive product experiences using REST and/or GraphQL APIs.
• Develop highly scalable backend services using Java and Kotlin with an API-first focus.
• Build data-driven product experiences that transform operational and analytical data into insights, dashboards, and workflows.
• Design and optimize data access patterns across APIs, databases, caching layers, and analytical sources.
• Build and maintain React/TypeScript user experiences including dashboards and forms.
• Establish clear contracts between frontend apps, APIs, and backend services.
• Participate in architecture and design reviews for new products.
• Identify and solve performance and scalability bottlenecks across stack.
• Troubleshoot production issues using logs, metrics, traces, and browser debugging.
• Instrument front-end apps with observability and telemetry.
• Leverage AI-assisted development tools to improve productivity.
• Participate in code reviews and document technical decisions.
• Take ownership of features end-to-end from architecture to deployment and monitoring.

Skills

Java

Kotlin

React

TypeScript

API design

REST/GraphQL

SQL

OOP design

AI tooling

Frontend debugging

Education

Bachelor's degree in Computer Science/Engineering or equivalent

Tools

REST

GraphQL

SQL databases

Job description

NinjaOne seeks a Senior Full Stack Software Engineer for its Emerging Products team. The role focuses on backend Java/Kotlin with working proficiency in React/TypeScript, building data-driven products from the ground up.

You will design and implement scalable APIs, optimize data access, and contribute to frontend components and observability, collaborating with data, product, and design teams to deliver enterprise-grade solutions.