Senior UI Engineer - Remote (Bulgaria)

Mondoo is creating a new way that helps companies keep their users and data safe from hackers around the world. We believe that core engineers who have both technical excellence and empathy to the developer experience will help our customers take action against attackers.

Your impact

You will have a direct impact on the Mondoo Platform including our policy engine, resources, scale, and multi-region functionality. You will be helping teams to assess, scope, prioritize, triage and remediate security findings.

Key responsibilities

We're seeking a skilled UI Engineer to join our dynamic team. In this role, you'll be responsible for designing, developing, and maintaining high-performance, scalable, and user-friendly web applications using React, TypeScript, and GraphQL. You'll work closely with our backend team to create seamless, efficient, and responsive user interfaces.

• Design and implement efficient, scalable, and reusable UI components using React and TypeScript

• Develop and maintain modern, responsive web applications

• Integrate GraphQL APIs with the frontend, optimizing data fetching and state management

• Participate actively in our RFC (Request for Comments) process for UI/UX design and architecture decisions

• Implement and maintain design systems and component libraries

• Optimize frontend performance and ensure cross-browser compatibility

• Collaborate with UX designers to translate wireframes and mockups into high-quality code

• Work closely with backend engineers to define and consume GraphQL APIs

• Implement robust error handling and loading states in the UI

• Ensure accessibility standards are met across all user interfaces

• Participate in code reviews and contribute to best practices and coding standards

• Troubleshoot and resolve complex UI issues in production environments

• Stay up-to-date with emerging trends and technologies in frontend development

Required qualifications

• Bachelor's degree in Computer Science, Software Engineering, or related field

• 5+ years of professional experience in frontend development with React

• Strong proficiency in TypeScript and modern JavaScript (ES6+)

• Experience with GraphQL, including querying, mutations, and state management with Apollo Client or similar libraries

• Solid understanding of responsive web design and cross-browser compatibility issues

• Proficiency in HTML5, CSS3, D3.js and CSS-in-JS solutions (e.g., styled-components, Emotion)

• Experience with state management solutions (e.g., Redux, MobX, or React Context API)

• Familiarity with modern frontend build tools (e.g., Vite, Turbo, Webpack)

• Strong understanding of web performance optimization techniques

• Solid understanding of version control systems (preferably Git)

• Strong written and communication skills with proven fluency in English

• Excellent ability to articulate design decisions and participate effectively in the RFC process

Preferred qualifications

• Experience with server-side rendering (e.g., Next.js)

• Knowledge of frontend testing frameworks (e.g., Jest, React Testing Library, Vitest)

• Familiarity with CI/CD pipelines and DevOps practices

• Experience with data visualization libraries (e.g., D3.js, recharts)

• Contributions to open-source React or TypeScript projects

• Experience with progressive web applications (PWAs)

• Previous experience participating in or leading RFC processes for frontend architectures

• Proficiency in optimizing build processes and leveraging modern tools like Vite and Turbo for improved developer experience and application performance

Application Process

As part of your application, please share links to your GitHub/GitLab repositories or a portfolio of projects that demonstrate your experience with React, TypeScript, GraphQL, and relevant frontend technologies. We're particularly interested in seeing examples that showcase your proficiency with modern build tools and performance optimization techniques.

If you're passionate about creating exceptional user interfaces, building scalable and performant web applications, leveraging cutting-edge build tools, participating in collaborative design processes, and pushing the boundaries of modern frontend development, we'd love to hear from you!