Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! As part of the Qualys Engineering team, you will design and build highly scalable, microservices-based web applications powered by robust Java backend services and modern frontend technologies. You’ll work across the stack—leveraging technologies such as Java, Spring Boot, Kafka, Cassandra, Oracle, Elasticsearch, Redis, and React.js—to deliver secure, performant, and user-friendly solutions at scale. You will collaborate closely with product managers and cross-functional engineering teams to translate customer needs into intuitive, cross-browser web experiences with rich user interactions. At Qualys, we strive to meet today’s web standards while anticipating the future of rich internet applications—ensuring our customers benefit from industry-leading usability, efficiency, and reliability. Performance, scalability, and security are at the core of everything you build. Responsibilities Design, develop, and deliver web-based applications and backend services Build and ship new features and enhancements in a fast-paced, agile environment Collaborate with product managers and cross-functional teams to refine and implement product requirements Mentor and guide team members on web development, backend design, and system architecture Continuously evaluate and improve architecture, performance, scalability, and user experience Apply object-oriented design principles and best practices (e.g., SOLID, DRY) Research emerging technologies and contribute to their adoption in new or existing products Qualifications 8+ years of experience in Java backend development Strong proficiency in Java (8/11/17), Spring Boot, Hibernate, and RESTful APIs Hands-on experience with distributed event streaming platforms such as Kafka Working knowledge of Elasticsearch Experience with distributed caching systems (e.g., Redis) Exposure to Oracle databases Solid understanding of data structures and distributed systems 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.

Lead Software Engineer.

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