Software Engineer

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, secure, and performant microservices-based web applications. The platform is powered by Java-based backend services, distributed systems, and modern frontend frameworks like React.

You will work on a cloud-native architecture leveraging technologies such as Kafka, Oracle, Elasticsearch, Redis, and container orchestration platforms. Collaborating closely with engineering teams, product managers, and UX designers, you will translate customer requirements into intuitive, high-performance user experiences.

We are looking for engineers who are passionate about building next-generation web applications, embracing modern web standards, and continuously evolving user experience paradigms. Performance, scalability, security, and reliability will be your core focus areas to deliver world-class products to our customers.

• Design, develop, and maintain scalable full-stack web applications and microservices
• Build robust backend services using Java and modern frameworks (e.g., Spring Boot)
• Develop responsive and high-performance frontend applications using ReactJS and related ecosystems
• Deliver new features, enhancements, and bug fixes in a fast-paced, agile environment
• Continuously evaluate and improve system architecture, performance, scalability, and user experience
• Apply software engineering best practices (SOLID principles, DRY, clean code, design patterns)
• Collaborate closely with product managers, UX designers, and cross-functional teams to define and deliver product requirements
• Optimize applications for maximum speed, scalability, and security
• Participate in code reviews, technical discussions, and mentoring junior engineers
• Research, evaluate, and adopt new technologies to improve product capabilities and developer productivity

• 3+ years of experience in full-stack or backend-focused development
• Strong programming skills in Java with solid understanding of object-oriented design
• Hands-on experience with RESTful APIs and microservices architecture
• Strong knowledge of data structures, algorithms, and distributed systems
• Experience with relational databases such as Oracle or similar
• Familiarity with search and analytics engines like Elasticsearch
• Experience building modern UI applications using ReactJS (or similar frameworks)
• Understanding of web technologies (HTML5, CSS3, JavaScript ES6+)
• Strong problem-solving skills and ability to work in a collaborative environment

• Experience with distributed event streaming platforms like Kafka or Flink
• Knowledge of distributed caching systems (Redis, Memcached)
• Hands-on experience with containerization and orchestration tools (Docker, Kubernetes)
• Familiarity with CI/CD pipelines and DevOps practices
• Exposure to cloud platforms (AWS, Azure, or GCP)
• Experience with state management libraries like Redux