Job Description

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.

Roles & Responsibilities

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

Qualifications

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

Good to Have

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