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Software Engineer – Platform & MiddlewareJob SummaryWe are seeking a talented and motivated Software Engineer to join Qualys’ next-generation Platform & Middleware team. This role is ideal for engineers who enjoy building scalable backend systems, solving distributed systems challenges, and contributing to the development of large-scale cloud-native platforms.
You will participate in the design, development, deployment, and support of highly scalable SaaS-based cloud security platforms processing hundreds of millions of transactions and terabytes of data daily. The role provides an opportunity to work on modern microservices architectures, cloud-native platforms, and large-scale distributed systems while growing technical expertise and engineering excellence.
ResponsibilitiesDesign and develop scalable backend services, platform components, and middleware systems using Java and related technologies
Build reliable and maintainable APIs, distributed services, and cloud-native applications for large-scale SaaS environments
Write clean, efficient, and maintainable code following engineering best practices
Participate in architecture discussions, design reviews, performance optimization, scalability improvements, and reliability initiatives
Build reusable frameworks, libraries, tools, and developer utilities to improve engineering productivity
Collaborate with architects, DevOps, and engineering teams to support CI/CD, observability, and operational excellence
Troubleshoot distributed systems issues across services, databases, messaging systems, and cloud infrastructure
Participate in code reviews, debugging, root cause analysis, and production support activities
Contribute to system reliability, resiliency, monitoring, and operational visibility across platform services
Follow engineering best practices, coding standards, and continuous improvement initiatives
Explore and adopt modern engineering tools and productivity practices where applicable
1–5 years of hands-on experience in backend software development for SaaS products or distributed systems
Strong programming skills in Java with a good understanding of object-oriented design principles, data structures, concurrency, and system design fundamentals
Experience building RESTful APIs, microservices, and distributed applications
Experience with messaging technologies such as Kafka, RabbitMQ, JMS, or similar systems
Exposure to CI/CD pipelines and DevOps practices using tools such as Jenkins, GitLab, Docker, Kubernetes, or Helm
Strong understanding of databases, SQL optimization, and data modeling concepts
Exposure to NoSQL technologies such as Cassandra, MongoDB, or Redis
Familiarity with cloud platforms such as AWS, Azure, or private cloud environments
Strong debugging, troubleshooting, and analytical problem-solving skills
Understanding of scalability, resiliency, observability, and production-grade system design concepts
Experience working on cloud security, cybersecurity, or enterprise SaaS platforms
Exposure to performance engineering and observability tools
Experience contributing to large-scale distributed systems and cloud-native platforms
Interest in AI-assisted development tools such as Cursor, Windsurf, Claude Code, GitHub Copilot, or similar platforms
Basic understanding of emerging AI engineering concepts such as MCP integrations, agentic workflows, RAG pipelines, AI-powered developer tooling, or LLM-based automation
Understanding of SRE concepts and production reliability engineering
Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent practical experience
Skills Required
- 1-5 years hands-on backend software development experience for SaaS or distributed systems
- Strong programming skills in Java and object-oriented design, data structures, concurrency, system design fundamentals
- Experience building RESTful APIs, microservices, and distributed applications
- Experience with messaging technologies such as Kafka, RabbitMQ, or JMS
- Exposure to CI/CD and DevOps tools and practices (Jenkins, GitLab, Docker, Kubernetes, Helm)
- Strong understanding of databases, SQL optimization, and data modeling
- Exposure to NoSQL technologies such as Cassandra, MongoDB, or Redis
- Familiarity with cloud platforms (AWS, Azure, or private cloud environments)
- Strong debugging, troubleshooting, and analytical problem-solving skills
- Understanding of scalability, resiliency, observability, and production-grade system design
- Bachelor's or Master's degree in Computer Science, Engineering, or equivalent practical experience
- Experience working on cloud security, cybersecurity, or enterprise SaaS platforms
- Exposure to performance engineering and observability tools
- Interest in AI-assisted development tools (GitHub Copilot, Cursor, Windsurf, Claude Code, etc.)
- Basic understanding of emerging AI engineering concepts (RAG pipelines, agentic workflows, MCP integrations)
- Understanding of SRE concepts and production reliability engineering
Qualys Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Qualys and has not been reviewed or approved by Qualys.
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Affordable Benefits — Benefits costs are widely viewed as low for employees and dependents, with healthcare often described as almost fully paid for. Feedback suggests this affordability helps offset perceptions of lower base pay in some roles.
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Healthcare Strength — Healthcare offerings are broad, including multiple medical plan options, dental and vision coverage, mental health support, and disability insurance. Benefits are described as “pretty amazing” or “great,” reinforcing perceived quality and coverage depth.
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Equity Value & Accessibility — Equity participation is accessible through company stock plans and an employee stock purchase plan. Compensation packages commonly include equity alongside salary and bonus, which some consider a meaningful part of total rewards.
Qualys Insights
What We Do
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. The Qualys Cloud Platform leverages a single agent to continuously deliver critical security intelligence while enabling enterprises to automate the full spectrum of vulnerability detection, compliance, and protection for IT systems, workloads and web applications across on premises, endpoints, servers, public and private clouds, containers, and mobile devices. Founded in 1999 as one of the first SaaS security companies, Qualys has strategic partnerships and seamlessly integrates its vulnerability management capabilities into security offerings from cloud service providers, including Amazon Web Services, the Google Cloud Platform and Microsoft Azure, along with a number of leading managed service providers and global consulting organizations. For more information, please visit http://www.qualys.com
