Lead Java Senior Backend Engineer

Cognizant is seeking a Lead Java Senior Backend Engineer to design and deliver scalable, high-performance backend systems for real-time data-driven applications. The role involves collaborating with cross-functional teams and providing technical leadership while developing backend applications using Java and microservices architectures.

Responsibilities:

• Design, develop, and maintain backend applications using Java, Spring Boot, and microservices architectures
• Build and operate event‑driven systems using Apache Kafka for real‑time data streaming
• Develop and integrate Kafka producers, consumers, and stream‑processing applications
• Translate business requirements into technical designs and deliver high‑quality, production‑ready solutions
• Provide technical leadership through code reviews, design guidance, and best practices
• Troubleshoot and resolve production issues through root‑cause analysis and long‑term fixes
• Collaborate with cross‑functional teams to support business objectives and architectural decisions

Requirements:

• 8+ years of IT
• Strong proficiency in Core Java, J2EE, Spring, and Spring Boot
• Proven experience building large-scale, high-performance microservices
• Hands-on experience with Apache Kafka and distributed messaging systems
• Experience with NoSQL databases such as Cosmos DB or MongoDB
• Cloud experience with Microsoft Azure and/or Google Cloud Platform (GCP)
• Solid understanding of CI/CD pipelines and production support practices
• Experience designing resilient, scalable backend systems
• Experience with analytics platforms such as Adobe Analytics
• Prior experience leading or mentoring engineers in distributed teams
• Strong communication skills and the ability to influence technical decisions