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Qualys - Lead Frontend Software Engineer - React.js/TypeScript

Posted on: 16/08/2025

Job Description

About the job :

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world!

Job Description :

Qualys is seeking a Lead Front-end Engineer to join our team.

As a Lead Front-end Engineer, you'll be tasked with creating modern, intuitive, data-driven, progressive webapps and mobile apps for our multiple SaaS products.

Were looking for someone who is passionate about front-end technologies and who enjoys the unique responsibility of helping to define the customer experience.

Responsibilities :

- You will collaborate with a UX/UI designer and other front-end and middle-tier engineers to Lead, Design, Prototype, and Build technical projects and initiatives across organization.

- You will mentor/coach other frontend engineers

- Hands-on development of proof of concepts and evaluation of new technologies

- Stay on the leading edge of technologies, industry trends and drive technical innovations

- Provide technical direction within and across groups by leading projects and building systems with company-wide impact

- Champion best practices and innovative techniques for scalability, reliability, and performance optimizations.

- Customer delight! Yes, you will be in charge of ensuring that the customer's experience is seamless.

- To understand the product, new requirements, and workflows, you must collaborate closely with our Product Managers and Engineering team.

Qualifications

- 7+ years front-end development experience.

- The fundamentals: HTML, CSS, and JavaScript.

- Must have an excellent understanding of the browser DOM.

- Youre a JavaScript expert! Firm grasp of lexical scoping, closures, and OO JavaScript.

- Proficient in native JavaScript as well as one or more frameworks such as ReactJS, etc.

- Proven experience designing, building, improving, and operating high-performance, scalable front-end systems

- Extensive experience with client-side technologies & modern frameworks (e.g., Javascript, Typescript, React)

- Experienced in developing mobile APP using react native

- Experienced in building Responsive UI

- Proficient with debugging and testing tools to troubleshoot and optimize the UI.

- Understanding of accessibility, 508 compliance.

- Understanding of front-end security best practices and XSS, CSRF, etc.

- Experienced in building Progressive Web Apps

- Proficiency in modern coding and design practices. For example, Clean Code, SOLID principals, and TDD

- Knowledge of back-end technologies and how they integrate with front-end systems


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