Lead Backend Engineer Java, Python, GenAI

Founded in 2016, Katalon is the category leader in AI-augmented software testing, empowering hybrid testers-those blending manual, automation, and AI skills-to deliver exceptional digital experiences. Katalon enables software teams of any size to deliver world-class customer experiences faster, easier, and more efficiently.

Since its first launch, Katalon has experienced tremendous growth, serving more than 30,000 teams across 80+ countries, many of which are in the Fortune Global 500. Katalon has been named a G2 Leader in software testing for 11 consecutive quarters and a Great Place to Work for three consecutive years.

About the role:

Katalon is an AI-augmented test automation solution that automatically discovers, models, generates, and maintains user-journey test cases. TrueTest provides a streamlined test generation process, saving time and improving testing efficiency. As a Lead Software Engineer, you will play a critical role in developing and enhancing our flagship test automation tool, following the responsibilities of:

• Collaborate closely with the product manager and team to develop and enhance the product's new features in addition to utilizing Generative AI technology.
• Perform detailed technical analysis and design to break down the feature based on the high-level design and business requirements.
• Develop and review code that meets the development standards for code style, design patterns, readability, and maintainability and integrates best practices for scaling.
• Ensure product quality, security, and performance through technical accountability and peer collaboration.
• Leverage AI Coding Assistants to boost development efficiency, automate repetitive tasks, and identify issues early.
• Identify and implement improvements to the existing codebase.
• Contribute to internal engineering groups to build reusable libraries, tools, and frameworks.
• Diagnose and troubleshoot issues for customer support.
• Support automation QAs and product specialists to maintain the demo system and write scripts using new Katalon features, to test applications.

• Deep expertise in Java for building scalable backend systems and APIs using frameworks like Quarkus, Spring Boot.
• Proven ability to architect highly available, distributed systems with focus on performance, reliability, and observability.
• Strong command of Python, including core concepts, data structures, and algorithms.
• Experience deploying, operating, and scaling services in cloud environments using Docker and Kubernetes.
• Strong understanding of CI/CD workflows, automated testing, code reviews, version control, and tools like GitHub Actions.
• Excellent problem-solving skills with a strong understanding of software engineering principles (e.g., SOLID, DRY, modular design) and a focus on writing maintainable, high-quality code.
• Effective communication and leadership experience, including mentoring and cross-team collaboration.
• Ability to work cross-functionally with product, infrastructure, and data teams in a fast-paced environment.
• AI-Native Mindset: Strong curiosity and proactive approach to applying AI in engineering. Engage with emerging skills like prompt engineering, LLM integration, agent-based design patterns, and automation frameworks. We're building a culture where engineers actively contribute to how AI shapes our products, workflows, and platform.
• Conversational English skills.

At Katalon, we bring together self-starting, open-minded, and talented people while actively promoting a transparent and growth-enabling working environment. But don't just take our word for it. Take a better look below!

• Total Remuneration: Satisfying your financial goals through competitive compensation and periodic performance bonuses.
• Well-being & Work-life Balance: Staying healthy through comprehensive health plans and generous paid leaves.
• Statutory Compliance: Labor compliance with local regulations that ensure employee security.
• Work Facilities & Accommodation: Top-notch equipment, supportive allowances, and A-class facilities.
• Diversity, Equity, Engagement, & Inclusion: Becoming part of a global team that celebrates differences, equal opportunity, and meaningful employee recognition.
• Growth & Rewards: Thriving professionally through employee enablement, a culture of trust, and rewarding performance.

Katalon is proud to be an equal-opportunity employer. We care about our people and celebrate our differences. We want to work with talented, collaborative, and innovative people. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other characteristics protected by law.