Sr. Software Development Engineer I

Kaseya Careers; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Kaseya is seeking a senior UI Engineer to build scalable, high‑performance web applications for our SaaS products. You will collaborate with Product, Design, and Backend teams to deliver intuitive experiences and reusable UI components.

The role emphasizes frontend architecture, performance optimization, and mentoring other engineers, with opportunities to contribute to design systems and frontend standards across the platform.

Qualifications

• 6–8+ years of frontend/UI development experience.
• Strong proficiency in JavaScript and TypeScript.
• Hands-on React experience; Vue or Angular is a plus.
• HTML5, CSS3, responsive design, and modern web standards.
• Experience with state management libraries (Redux/Redux Toolkit, Zustand, Recoil).
• Experience integrating RESTful APIs and GraphQL.
• Experience building reusable components and design systems.
• Knowledge of frontend performance optimization and debugging.
• Experience with testing frameworks (Jest, RTL, Cypress/Playwright).
• Proficient with Git, CI/CD, and modern frontend tooling.

Responsibilities

• Build modern, scalable, high‑performance web applications for SaaS products.
• Collaborate with Product, Design, and Backend teams to deliver UI features end‑to‑end.
• Design reusable UI components and contribute to frontend architecture and systems.
• Optimize performance, rendering, bundle size, and user experience.
• Integrate frontends with REST/GraphQL APIs and complex data workflows.
• Write clean, maintainable, well‑tested code and participate in code reviews.
• Mentor engineers and help establish frontend standards and best practices.

Skills

JavaScript

TypeScript

React

Vue

Angular

HTML5/CSS3

Redux Toolkit

Zustand

Recoil

REST/GraphQL

Design systems

Frontend performance

Testing (Jest/RTL)

Git/CI/CD

Tools

Next.js

Tailwind CSS

Figma

Docker

Kubernetes

Job description

About Kaseya

Kaseya is the leading provider of AI-powered IT management and cybersecurity software, serving Managed Service Providers (MSPs) and internal IT organizations worldwide. Our comprehensive platform helps organizations efficiently manage, secure, and automate their IT environments, driving operational efficiency and long-term business success.

Backed by Insight Partners, a leading global software investor, Kaseya has experienced sustained double-digit growth and continues to expand its global footprint. Today, Kaseya supports customers in more than 20 countries and manages over 15 million endpoints worldwide.

Founded in 2000, Kaseya has built a culture centered around innovation, accountability, and results. We are a high-growth, high-performance organization that values individuals who are driven, adaptable, and committed to delivering exceptional outcomes for our customers and teammates alike.

At Kaseya, success comes from embracing challenges, moving with urgency, and continuously raising the bar.

Position Summary

• Kaseya is looking for a UI Engineer to build modern, scalable, and high-performance web applications for our SaaS products. You will work closely with Product, Design, and Backend teams to deliver intuitive user experiences and reusable UI components.
• This is a hands‑on engineering role focused on frontend architecture, performance, scalability, and quality, with opportunities to contribute to technical design and mentor other engineers.
• Build and maintain scalable, responsive web applications using modern frontend technologies.
• Design reusable UI components and contribute to frontend architecture and design systems.
• Integrate frontend applications with REST/GraphQL APIs and handle complex data‑driven workflows.
• Optimize application performance, rendering, bundle size, and overall user experience.
• Write clean, maintainable, reusable, and well‑tested code.
• Participate in code reviews, technical design discussions, and frontend architecture decisions.
• Work closely with Product, UX/Design, and Backend teams to deliver features end‑to‑end.
• Troubleshoot production issues and continuously improve application reliability and performance.
• Mentor engineers and contribute to frontend engineering standards and best practices.

Required Qualification

• 6–8+ years of professional experience in frontend/UI development.
• Strong proficiency in JavaScript and TypeScript.
• Strong hands‑on experience with React; experience with Vue or Angular is a plus.
• Strong knowledge of HTML5, CSS3, responsive design, and modern web standards.
• Experience with state management libraries such as Redux/Redux Toolkit, Zustand, or Recoil.
• Strong experience integrating RESTful APIs and/or GraphQL.
• Experience building reusable component libraries and design systems.
• Strong understanding of frontend performance optimization and debugging.
• Experience with Jest, React Testing Library, Cypress, Playwright, or similar testing frameworks.
• Good understanding of Git, CI/CD, build tools, and modern frontend development practices.

Preferred Qualification

• Experience with Next.js or other modern React frameworks.
• Experience with Tailwind CSS and modern UI component libraries.
• Knowledge of Web Accessibility (WCAG), semantic HTML, and responsive design.
• Experience with micro‑frontends or large‑scale frontend architecture.
• Experience with frontend observability and performance tools.
• Familiarity with Docker, Kubernetes, and cloud‑based SaaS applications.
• Experience working with Figma or similar design/prototyping tools.
• Strong understanding of UI/UX principles and product‑focused engineering.
• Experience mentoring engineers and driving frontend technical standards.

Additional Information

Kaseya provides equal employment opportunity to all employees and applicants without regard to race, religion, age, ancestry, gender, sex, sexual orientation, national origin, citizenship status, physical or mental disability, veteran status, marital status, or any other characteristic protected by applicable law.