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AES - Application Modernization - Core Skills - AS400 @ Zensar

IndiaOnsiteFull-timeJob reference 151937
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About this role

At Zensar, we’re “experience-led everything”. We are committed to conceptualizing, designing, engineering, marketing, and managing digital solutions and experiences for over 130 leading enterprises. We are a company driven by a bold purpose: Together, we shape experiences for better futures. Whether for our clients, our people, or the world around us, this belief powers everything we do. At the heart of our culture is ONE with Client - a set of four core values that reflect who we are and how we work: One Zensar, Nurturing, Empowering, and Client Focus.

Part of the $4.8 billion RPG Group, we’re a community of 10,000+ innovators across 30+ global locations, including Milpitas, Seattle, Princeton, Cape Town, London, Zurich, Singapore, and Mexico City. Explore Life at Zensar and join us to Grow. Own. Achieve. Learn. to be the best version of yourself.

We believe the best work happens when individuality is celebrated, growth is encouraged, and well-being is prioritized. We are an equal employment opportunity (EEO) and affirmative action employer, committed to creating an inclusive workplace. All qualified applicants will be considered without regard to race, creed, color, ancestry, religion, sex, national origin, citizenship, age, sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status. Zensar Technologies Limited is seeking a Sr. Developer to lead the modernization of legacy AS400 applications within a fast‑paced casino gaming environment. The role involves redesigning, refactoring, and integrating core gaming systems with modern technologies while ensuring high performance, security, and regulatory compliance.

• Analyze existing applications and define modernization roadmaps. • Migrate legacy code to service‑oriented architectures and cloud platforms. • Integrate gaming APIs, and third‑party services. • Perform code reviews, unit testing, and performance tuning. • Collaborate with product owners, QA, and operations in Agile ceremonies. • Implement CI/CD pipelines and automated deployment processes. • Troubleshoot production issues and provide rapid root‑cause analysis. • Document technical designs, standards, and best practices. • Mentor junior developers and foster knowledge sharing within the team.

• 5+ years of professional experience with development. • Strong proficiency in Javascript. • Hands‑on experience modernizing legacy systems to microservices or cloud architectures. • Familiarity with casino gaming domain concepts and regulatory requirements. • Experience with RESTful APIs, JSON, and integration patterns. • Knowledge of Agile/Scrum methodologies and DevOps practices. • Proficiency in CI/CD tools such as Jenkins, GitLab, or Azure DevOps. • Excellent problem‑solving and analytical skills. • Effective communication and teamwork abilities. • Bachelor’s degree in Computer Science, Engineering, or related field.

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