Java Developer

Flexi Careers India; Bengaluru; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Flexi Careers India is seeking a senior software engineer with strong Java and cloud background to join our global delivery teams. The candidate should demonstrate deep expertise in Java JDK 1.8+, Spring Core/Boot, and microservices architectures.

Exposure to JMS, AWS services (EKS, ECS, MSK, S3, IAM, RDS), containerization with Docker, and CI/CD pipelines using Maven/Gradle and Jenkins is required. Strong problem solving and collaborative skills are essential.

Qualifications

• 6+ years of software development experience.
• Strong Java 1.8+ and OOP fundamentals.
• Experience with Spring, JMS and microservices.
• Cloud AWS and containerization with Docker/Kubernetes.
• Excellent communication and cross-team collaboration.

Skills

Java 1.8+

Java fundamentals

Enums & Collections

Data Structures

Multithreading

Spring Core/Boot

JMS (ActiveMQ/RabbitMQ/Kafka)

Memory & GC tuning

CI/CD (Maven/Gradle, Jenkins)

Docker & containers

OO Design & patterns

JUnit/Mockito

Git/SVN

Microservices

Cloud AWS

EKS/ECS/MSK

AWS services (S3, IAM, RDS)

Job description

Preferred candidate profile

• 6+ years of software development experience
• Strong development skills in Java JDK 1.8 or above
• Java fundamentals like Exceptional handling, Serialization/Deserialization and Immutability concepts
• Good fundamental knowledge in Enums, Collections, Annotations, Generics, Auto boxing and Data Structure
• Database RDBMS/No SQL (SQL, Joins, Indexing)
• Multithreading (Re-entrant Lock, Fork & Join, Sync, Executor Framework)
• Spring Core & Spring Boot, security, transactions
• Hands-on experience with JMS (ActiveMQ, RabbitMQ, Kafka etc). Hands on experience entails being closely involved with developing applications using event driven design pattern. They should have exposure to producer/consumer development, partitioning , consumer group management, retry handling, and troubleshooting production issues.
• Memory Mgmt (JVM configuration, Profiling, GC), profiling, Perf tunning, Testing, Jmeter/similar tool)
• Devops (CI/CD: Maven/Gradle, Jenkins, Quality plugins, Docker and containersization)
• Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
• Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
• Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
• Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
• Depth of experience on current/recent projects should be able to clearly articulate the end-to-end architecture of at least one project they have worked on in the last 2 years, including key components, service boundaries, data flows, and the rationale behind design/technology choices, along with their individual contribution to it.
• Cloud – AWS is mandatory
• Deep working knowledge of EKS , ECS / Fargate, MSK, VPC ,IAM, RDS / Aurora, S3, Secrets Manager, Parameter Store, CloudWatch, KMS, Route 53, ALB/NLB, CloudFront, Api Gateway
• Strong Experience in Microservices. This would include familiarity with microservice design patterns, building fault tolerant and scalable applications.