Senior Software Engineer

QLYS_IN Qualys Security TechServices Private Ltd.; Pune District; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Qualys seeks an experienced backend software engineer to design and build scalable Java-based services for a cloud-native SaaS security platform. You will develop microservices, APIs, and middleware, while contributing to architecture discussions and reliability initiatives.

The role emphasizes distributed systems, data modeling, and observability, with collaboration across architects, DevOps, and engineering teams to support CI/CD and production excellence.

Qualifications

• Bachelor's or Master’s degree in Computer Science, Engineering, or equivalent practical experience.
• 5–8 years of backend software development experience for SaaS or distributed systems.
• Strong Java programming with OO design, data structures, concurrency and system design concepts.
• Experience building RESTful APIs and microservices for large-scale SaaS apps.
• Exposure to CI/CD pipelines and DevOps with Jenkins, GitLab, Docker, Kubernetes, or Helm.

Responsibilities

• Design and develop scalable backend services, platform components, and middleware using Java.
• Build reliable APIs, distributed services, and cloud-native apps for large-scale SaaS environments.
• Write clean, efficient, and maintainable code following best practices.
• Participate in architecture discussions, performance optimization, scalability improvements, and reliability initiatives.
• Collaborate with architects, DevOps, and engineering to support CI/CD, observability, and operational excellence.
• Troubleshoot distributed systems across services, databases, messaging systems, and cloud infrastructure.
• Participate in code reviews, debugging, root cause analysis, and production support.

Skills

Java

REST APIs

Microservices

Distributed systems

Kafka/RabbitMQ

CI/CD

DevOps practices

Docker

Kubernetes

Helm

SQL optimization

NoSQL databases

Cloud platforms

Observability

Debugging

Education

CS/Engineering degree

Tools

Jenkins

GitLab

Docker

Kubernetes

Helm

Job description

Come work at a place where innovation and teamwork come together to support the most exciting missions in the world! Job Summary Interested in delivering large scale distributed software systems using cutting edge technologies in a culture that encourages autonomous productive teams? We are seeking talented and motivated software engineer who enjoys 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. This 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.

Responsibilities

• Design 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

Required Skills & Experience

• 5–8 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

Preferred Qualifications

• Experience of 5+ years, 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

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent practical experience

About Qualys

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.