AES - DE - FS - Java

Job Description

We are looking for a highly skilled Senior Backend Developer to design, develop, and maintain scalable, secure, and high-performance backend systems. The ideal candidate will have extensive experience in Java, Microservices Architecture, API Design & Development, AWS Cloud Services, and Kafka-based event-driven solutions.

This role requires a hands-on engineer who can drive technical design decisions, contribute to architecture discussions, mentor junior developers, and collaborate closely with product, frontend, and DevOps teams to deliver robust enterprise-grade applications.

Responsibilities

Key Responsibilities

API Design & Development

• Design and develop scalable, secure, and maintainable RESTful APIs.
• Define API standards, governance, versioning, and best practices.
• Collaborate with stakeholders to translate business requirements into technical API solutions.
• Develop API contracts using OpenAPI/Swagger specifications.
• Optimize API performance, reliability, and security.
  
  

Backend Development

• Design and implement backend services using Java and Spring Boot.
• Build and maintain microservices-based architectures.
• Develop reusable, testable, and efficient code following industry best practices.
• Perform code reviews and ensure high coding standards.
  
  

Cloud & Distributed Systems

• Design and deploy cloud-native applications on AWS.
• Work with AWS services such as ECS/EKS, Lambda, API Gateway, RDS, S3, CloudWatch, and IAM.
• Implement scalable and resilient distributed systems.
  
  

Event-Driven Architecture

• Design and develop Kafka-based integration solutions.
• Build event-driven microservices for asynchronous processing.
• Monitor and optimize Kafka producers, consumers, and topics.
  
  

Collaboration & Leadership

• Mentor junior developers and provide technical guidance.
• Participate in architecture reviews and technical decision-making.
• Work closely with Product Owners, Architects, QA, and DevOps teams.
• Drive continuous improvement initiatives and adoption of engineering best practices.
  
  

Qualifications

• 8+ years of hands-on software development experience.
• Strong expertise in Java (Java 11/17+).
• Extensive experience with Spring Boot, Spring MVC, Spring Security, and related frameworks.
• Strong understanding of Microservices Architecture and design patterns.
• Proven experience in API Design and Development.
• Hands-on experience with AWS Cloud Services.
• Strong knowledge of Apache Kafka and event-driven architectures.
• Experience with SQL and NoSQL databases.
• Experience with CI/CD pipelines and DevOps practices.
• Strong understanding of system scalability, performance tuning, and security best practices.
• Proficiency with GitHub and modern source control workflows.
  
  

About Us

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.