Sr. Java Developer

Zensar Technologies; Maharashtra; On-site; INR 2,800,000 - 4,600,000; Full time

Job summary

Zensar Technologies is seeking an experienced Java Spring Microservices Engineer to build high‑performance backend services in an Agile environment. You will design and implement microservices using Core Java, Spring Boot, Spring Cloud, and AWS, focusing on secure, scalable, and resilient architectures.

Responsibilities include developing Java microservices, implementing security with OAuth2/JWT, deploying on AWS and Kubernetes, containerizing with Docker, building CI/CD pipelines, and ensuring

Qualifications

• 10+ years of professional Java development experience.
• Strong knowledge of Core Java, multithreading, and OOP principles.
• Hands-on experience with Spring Boot, Spring Security (OAuth2, JWT), and Spring Cloud.
• Proficiency in building and deploying microservices on AWS and Kubernetes (EKS).
• Experience with Docker and CI/CD tooling (Jenkins, Spinnaker, JFrog).
• Solid testing skills using JUnit and Mockito.
• Familiarity with Redis, Apache Iceberg, DuckDB, and data ingestion patterns.
• Understanding of observability tools such as OpenTelemetry and Coralogix.
• Agile mindset with strong collaboration and communication abilities.
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).

Responsibilities

• Design, develop, and maintain Java microservices using Spring Boot and Spring Cloud.
• Implement security mechanisms with Spring Security, OAuth2, and JWT.
• Deploy and manage services on AWS (EC2, S3, ECR, Glue, Athena) and Kubernetes (EKS).
• Containerize applications with Docker and orchestrate them using Kubernetes.
• Create CI/CD pipelines using Jenkins, Spinnaker, and JFrog Artifactory.
• Write unit and integration tests with JUnit and Mockito.
• Optimize performance and scalability, including multithreading and caching with Redis.
• Develop batch and data ingestion workflows leveraging Apache Iceberg and DuckDB.
• Instrument services with OpenTelemetry and monitor logs via Coralogix.
• Collaborate with cross‑functional Agile teams and participate in sprint planning and retrospectives.

Skills

Core Java

Multithreading

OOP Principles

Agile mindset

Cloud native design

High performance

Education

Bachelor's degree in Computer Science/Engineering or related field

Tools

Spring Boot

Spring Cloud

AWS

Docker

Kubernetes

Jenkins

Spinnaker

JFrog Artifactory

JUnit

Mockito

OpenTelemetry

Coralogix

Job description

Job Description

Zensar Technologies Limited is seeking an experienced Java Spring Microservices Engineer (AES‑DE‑FS) to build high‑performance backend services. You will leverage Core Java, Spring Boot, Spring Cloud, and AWS to create resilient, secure micro‑architectures, integrate data pipelines, and support continuous delivery in an Agile environment.

Responsibilities

• Design, develop, and maintain Java microservices using Spring Boot and Spring Cloud.
• Implement security mechanisms with Spring Security, OAuth2, and JWT.
• Deploy and manage services on AWS (EC2, S3, ECR, Glue, Athena) and Kubernetes (EKS).
• Containerize applications with Docker and orchestrate them using Kubernetes.
• Create CI/CD pipelines using Jenkins, Spinnaker, and JFrog Artifactory.
• Write unit and integration tests with JUnit and Mockito.
• Optimize performance and scalability, including multithreading and caching with Redis.
• Develop batch and data ingestion workflows leveraging Apache Iceberg and DuckDB.
• Instrument services with OpenTelemetry and monitor logs via Coralogix.
• Collaborate with cross‑functional Agile teams and participate in sprint planning and retrospectives.

Qualifications

• 10+ years of professional Java development experience.
• Strong knowledge of Core Java, multithreading, and OOP principles.
• Hands‑on experience with Spring Boot, Spring Security (OAuth2, JWT), and Spring Cloud.
• Proficiency in building and deploying microservices on AWS and Kubernetes (EKS).
• Experience with Docker, CI/CD tools (Jenkins, Spinnaker, JFrog).
• Solid testing skills using JUnit and Mockito.
• Familiarity with Redis, Apache Iceberg, DuckDB, and data ingestion patterns.
• Understanding of observability tools such as OpenTelemetry and Coralogix.
• Agile mindset with strong collaboration and communication abilities.
• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).

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.