Senior Java Developer

ADVANCED E-SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

ADVANCED E-SOLUTIONS PTE. LTD. is seeking an experienced Senior Java Developer to design, develop and maintain scalable backend systems using Java, Spring Boot and Hibernate.

You will build RESTful services, work with microservices and databases, and implement robust CI/CD pipelines, collaborating with UI/UX, QA and DevOps to deliver reliable production applications.

Qualifications

• 8–9 years of Java development experience.
• Strong hands-on with Java 8+ and Spring ecosystem.
• Experience designing scalable backend services and microservices.
• Proficient in relational databases and SQL.
• Ability to mentor junior developers.

Responsibilities

• Design, develop, and maintain enterprise backend applications.
• Build RESTful services and microservices.
• Participate in code reviews and performance optimization.
• Collaborate with UI/UX, QA, and DevOps teams.
• Support deployment and production issue resolution.

Skills

Core Java

OOP

Multithreading

Java 8+ features

Streams & Lambdas

RESTful APIs

Microservices

SQL databases

Git

Maven/Gradle

Deployment processes

Education

Bachelor's degree in Computer Science or equivalent

Tools

Spring Boot

Spring MVC

Hibernate / JPA

Docker

Kubernetes

CI/CD (Jenkins)

Kafka / RabbitMQ

JUnit

Mockito

Job description

Job Summary

We are looking for an experienced Senior Java Developer with strong expertise in Java-based application development, enterprise software solutions, and backend engineering. The ideal candidate should have hands-on experience in designing, developing, implementing, and maintaining scalable applications.

Key Responsibilities

• Design, develop, and maintain enterprise-level applications using Java.
• Build scalable backend services and RESTful APIs.
• Work with Java 8/11/17 or later versions.
• Develop applications using Spring Boot, Spring MVC, and Hibernate.
• Work with microservices architecture and distributed systems.
• Integrate applications with databases and third-party services.
• Write clean, reusable, and maintainable code.
• Perform debugging, troubleshooting, and performance optimization.
• Participate in code reviews and technical discussions.
• Collaborate with cross-functional teams, including UI/UX, QA, and DevOps.
• Support application deployment and production issue resolution.

Required Technical Skills

• Strong proficiency in Core Java, OOP, Collections, and Multithreading.
• Java 8+ features, including Streams and Lambda Expressions.
• Spring Boot, Spring MVC, Spring Framework.
• Hibernate / JPA.
• RESTful API development and integration.
• Microservices architecture.
• SQL databases such as MySQL, PostgreSQL, or Oracle.
• Experience with Git and Maven/Gradle.
• Knowledge of application servers and deployment processes.

Good to Have

• Cloud exposure (AWS / Azure / GCP).
• Docker and Kubernetes.
• CI/CD pipelines and Jenkins.
• Kafka or RabbitMQ.
• Agile/Scrum development experience.
• Unit testing using JUnit and Mockito.

Candidate Profile

8-9 years of relevant Java development experience. Strong problem-solving and analytical skills. Ability to work independently and mentor junior developers. Excellent communication and collaboration skills.