Software Engineer (Front-end, React)

As a Software Engineer (Front-end, React) at NFQ, you'll focus on building and maintaining scalable frontend solutions using React.js. Your responsibilities will also include creating user-friendly interfaces to simplify logistics data, collaborating with the AI team for feature integration, and working with UX designers to enhance overall user experiences.

To apply for the Software Engineer (Front-end, React) role at NFQ, you should have professional experience with JavaScript, TypeScript, HTML, and CSS. Proficiency in React.js is critical, alongside familiarity with state management libraries, RESTful APIs, and GraphQL. Strong problem-solving skills and excellent English communication are also essential.

Yes! At NFQ, we offer unlimited work-from-home options, and you can also choose to work from anywhere within Lithuania. Our flexible working policy is designed to accommodate your lifestyle and productivity preferences.

In the role of Software Engineer (Front-end, React) at NFQ, you'll work with modern technologies such as React.js, TypeScript, HTML, and CSS. Familiarity with NextJS and state management libraries, like Redux, can be beneficial. You'll also get the opportunity to collaborate with machine learning technologies, enhancing your skill set in AI integration.

NFQ promotes a high-performing, ambitious, and collaborative culture free from office politics. We celebrate curiosity and experimentation. Our environment encourages cross-team collaboration and personal growth, allowing you to advance your skills and contribute effectively to impactful projects.

When asked about state management in a React application, discuss various methods such as using React’s built-in state with hooks like useState and useReducer, as well as third-party solutions like Redux or Context API. Explain your reasoning for choosing one approach over another based on the application's complexity.

When explaining the lifecycle of a React component, break it down into three phases: Mounting, Updating, and Unmounting. Describe key lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount, highlighting how each method influences performance and user experience.

In your answer, emphasize that keys help React identify which items have changed, are added, or are removed. This enhances performance in rendering lists and ensures components maintain their identities across changes, leading to a smoother user experience.

When discussing a challenging project, detail the project's objectives, hurdles faced, and your problem-solving approach. Highlight specific React features you utilized, like hooks or context, and elaborate on the benefits these features provided in overcoming the challenges.

Outline strategies for optimizing performance, such as code splitting, lazy loading components, using memoization techniques with React.memo and useMemo, and proper state management. Discuss how monitoring tools have helped identify performance bottlenecks.

Detail common accessibility issues such as missing alt text for images, improper use of aria attributes, and keyboard navigation issues. Share methods you use to improve accessibility, such as utilizing semantic HTML and tools like aXe.

Discuss using controlled components versus uncontrolled components, mentioning the advantages of controlled components for handling form data. Explain how you manage form state and validation to ensure user inputs are accurate while maintaining component reactivity.

Explain that higher-order components (HOCs) are functions that take a component and return a new component. Discuss their purpose in reusing component logic, and give examples of scenarios where you might use HOCs in your projects.

Speak about your strategies for consuming RESTful APIs in React applications, such as using fetch or axios. Give a specific example where you integrated an API, elaborating on how you managed data fetching, error handling, and state updates.

Describe your debugging process, which could include using browser developer tools, React DevTools Extension, or console logging. Share a particular obstacle you encountered, the tools you employed, and how you efficiently resolved the issue.