Senior Java Developer

AagatiServe Pvt Ltd; Delhi; On-site; INR 1,500,000 - 2,100,000; Full time

Job summary

AagatiServe Pvt Ltd in Delhi is seeking a Senior Java Developer to build scalable, cloud‑native enterprise apps. You will design and implement modern Java solutions using Spring Boot 3.x, Docker, Kubernetes, and CI/CD, with strong emphasis on security and performance.

The role requires 5+ years in Java development and hands‑on experience with both SQL/NoSQL databases, messaging systems, and event‑driven architectures.

Qualifications

• 5+ years of professional Java development experience, including 4+ years with Java 17+.
• Strong knowledge of Spring Boot 3.x, Spring Security, Spring Data JPA, Spring Cloud.
• Proficiency in multithreading, concurrency, and JVM performance tuning.
• Hands‑on with Docker, Kubernetes, and CI/CD pipelines.
• Experience with relational and NoSQL databases.
• Familiarity with testing frameworks (JUnit 5, Mockito) and agile practices.
• Exposure to Kafka, RabbitMQ, and event‑driven architectures.
• Strong understanding of security protocols and best practices.

Responsibilities

• Design, develop, and maintain enterprise‑grade applications using Java 17+ and Spring Boot 3.x.
• Implement secure and scalable APIs (RESTful, GraphQL) following best practices.
• Work with Spring Security, Spring Data JPA, Spring Cloud, and Reactive Programming frameworks.
• Apply object‑oriented design, functional programming, and design patterns in solutions.
• Optimize applications for performance and scalability, leveraging multithreading, concurrency utilities, and JVM tuning.
• Deploy, monitor, and manage applications using Docker, Kubernetes, Prometheus, and Grafana.
• Work with both SQL and NoSQL databases (Oracle, PostgreSQL, MySQL, MongoDB, Redis).
• Implement CI/CD pipelines and ensure DevOps best practices.
• Write clean, testable code with JUnit 5, Mockito, and follow TDD/BDD methodologies.
• Collaborate with cross‑functional teams in designing event‑driven solutions using Kafka/RabbitMQ.
• Ensure applications adhere to security best practices (OAuth2, JWT, OWASP).

Skills

Java programming

Multithreading

Security best practices

Education

Bachelor's degree in CS or related field

Tools

Java 17+

Spring Boot 3.x

Spring Security

Spring Data JPA

Spring Cloud

Docker

Kubernetes

CI/CD

Kafka

RabbitMQ

JUnit 5

Mockito

OAuth2

JWT

OWASP

Job description

Experience Required: 5+ years (4+ years on Java 17 or later)

Employment Type: Full-time

Role Overview

We are seeking an experienced Senior Java Developer with expertise in modern Java, Spring Boot, and cloud-native application development. The ideal candidate will have strong skills in building scalable, secure, and high-performance applications, with hands‑on experience in microservices, DevOps practices, and distributed systems.

Key Responsibilities

• Design, develop, and maintain enterprise‑grade applications using Java 17+ and Spring Boot 3.x.
• Implement secure and scalable APIs (RESTful, GraphQL) following best practices.
• Work with Spring Security, Spring Data JPA, Spring Cloud, and Reactive Programming frameworks.
• Apply object‑oriented design, functional programming, and design patterns in solutions.
• Optimize applications for performance and scalability, leveraging multithreading, concurrency utilities, and JVM tuning.
• Deploy, monitor, and manage applications using Docker, Kubernetes, Prometheus, and Grafana.
• Work with both SQL and NoSQL databases (Oracle, PostgreSQL, MySQL, MongoDB, Redis).
• Implement CI/CD pipelines and ensure DevOps best practices.
• Write clean, testable code with JUnit 5, Mockito, and follow TDD/BDD methodologies.
• Collaborate with cross‑functional teams in designing event‑driven solutions using Kafka/RabbitMQ.
• Ensure applications adhere to security best practices (OAuth2, JWT, OWASP).

Required Skills & Experience

• 5+ years of professional Java development experience, including 4+ years with Java 17 or later.
• Strong knowledge of Spring Boot 3.x, Spring Security, Spring Data JPA, Spring Cloud.
• Proficiency in multithreading, concurrency, and JVM performance tuning.
• Hands‑on with Docker, Kubernetes, and CI/CD pipelines.
• Experience in working with relational and NoSQL databases.
• Familiarity with testing frameworks (JUnit 5, Mockito) and agile development practices.
• Exposure to Kafka, RabbitMQ, and event‑driven architectures.
• Strong understanding of security protocols and best practices.

Preferred / Nice‑to‑Have

• Experience with microservices orchestration, service mesh, API gateways.
• Knowledge of cloud‑native development and 12‑factor app principles.
• Familiarity with Gradle/Maven optimization, GitLab CI, DevSecOps.
• Contributions to open‑source projects or technical publications.