Senior Front End Software Engineer

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! About the Role We are looking for a passionate, highly motivated Senior Frontend Engineer to design, build, and scale high-performance web applications for enterprise customers, with strong React/JavaScript skills and curiosity about AI-assisted engineering. Key Responsibilities Design and maintain scalable, performant UIs using React and modern JavaScript. Build and maintain reusable component libraries and design systems. Contribute to frontend architecture, state management, and performance optimization. Participate in code reviews, uphold best practices, and mentor junior engineers. Own CI/CD workflows (Jenkins) and manage source control (Bitbucket/Git). Track work in Jira with clear technical scoping. Evaluate and integrate AI-assisted development tools to improve velocity and quality. Champion accessibility, cross-browser compatibility, and responsive design. Translate Figma designs into pixel-perfect, production-ready UI. Required Skills and Experience JavaScript (ES6+) — strong fundamentals and asynchronous patterns. React (5+ years hands-on) — hooks, component composition, performance optimization, state management (Redux Toolkit or equivalent). Node.js — building/maintaining backend services, REST APIs, or BFF layers. HTML5 and CSS3 — semantic markup, responsive layouts, CSS-in-JS or utility-first frameworks. Jira, Jenkins, Bitbucket/Git — sprint tracking, CI/CD, and version control. Vite and/or Webpack — bundling, build configuration, and performance tuning. Practical exposure to AI-assisted development — LLM coding assistants (e.g., Claude, Copilot, Devin), prompt engineering, agentic workflows, and MCP or similar tool-use patterns. Micro-frontend architectures and Module Federation. Writing unit test cases using Vitest, React Testing Library, Mocha, or Chai. Strong grasp of software design patterns and their application in frontend architecture. Good to Have Exposure to SSE (Server-Sent Events) or real-time streaming patterns. Prior mentoring or feature-team leadership experience. TypeScript. Docker and Kubernetes. Experience Level 5 to 9 years of professional frontend engineering experience, including at least 2-4 years on production React applications at scale. What We Offer Ownership of high-impact, customer-facing products. A collaborative culture balancing technical depth with pragmatic delivery. Opportunity to work at the forefront of AI-assisted software development. Join our talent community and receive the latest Qualys news, content, and be first in line for new job opportunities. Join our Talent Community! Qualys, Inc. (NASDAQ: QLYS) is a pioneer and leading provider of disruptive cloud-based security, compliance and IT solutions with more than 10,000 subscription customers worldwide, including a majority of the Forbes Global 100 and Fortune 100. Qualys helps organizations streamline and automate their security and compliance solutions onto a single platform for greater agility, better business outcomes, and substantial cost savings.