Backend Developer - Alibaba Cloud with Core Java, Spring

ITConnectUS; Singapore; On-site; SGD 100,000 - 134,000; Full time

Job summary

ITConnectUS is seeking a seasoned Java developer in Singapore to design and implement scalable microservices using Core Java, Spring, and Hibernate. You will build secure RESTful APIs, leverage Spring Cloud and API gateways, and work with messaging systems like Kafka/RabbitMQ.

Proficiency in Alibaba Cloud services (ECS, ACK, OSS, RDS) and strong DevOps experience with Docker, Kubernetes, CI/CD is required. You will optimize JVM performance and contribute to data layer choices (MySQL, PostgreSQL,

Qualifications

• Strong knowledge of Java 8/11/17
• Experience with the Java Collections Framework and multithreading
• Proficient in JVM tuning and performance optimization
• Solid understanding of design patterns and best practices in Java
• Hands-on with Spring ecosystem: Boot, MVC, Data JPA, Security, Cloud
• Experience with Hibernate/JPA and microservices architecture
• Knowledge of API gateways and circuit breaker patterns
• Experience with messaging systems (Kafka/RabbitMQ)
• Hands-on Alibaba Cloud services: ECS, ACK, OSS, RDS, RAM, VPC, SLB
• DevOps experience with Docker, Kubernetes, CI/CD pipelines
• Proficient in relational and NoSQL databases (MySQL, PostgreSQL, MongoDB)

Responsibilities

• Design and implement Java-based microservices with Spring and Hibernate
• Build robust RESTful APIs and secure services with Spring Security
• Deploy and operate apps on Alibaba Cloud and Kubernetes clusters
• Collaborate with teams to implement CI/CD pipelines and code quality tooling
• Tune JVM performance and optimize system reliability
• Write clean, maintainable code and comprehensive tests

Skills

Core Java

Collections Framework

Multithreading

Exception Handling

JVM Tuning

Design Patterns

Spring Boot

Spring MVC

Spring Data JPA

Spring Security

Spring Cloud

Hibernate/JPA

Microservices

Service Discovery

API Gateway

Circuit Breaker

Kafka

RabbitMQ

Alibaba Cloud

Docker

Kubernetes

Jenkins

Git

CI/CD

Maven

Gradle

MySQL

PostgreSQL

MongoDB

Tools

Docker

Kubernetes

Jenkins

GitLab CI

Maven

Gradle

Git

SonarQube

Job description

Core Java

• Strong knowledge of Java 8/11/17
• Collections Framework
• Multithreading & Concurrency
• Exception Handling
• JVM Performance Tuning
• Design Patterns

Spring Ecosystem

• Sring Boot
• Spring MVC
• Spring Data JPA
• Spring Security
• Spring Cloud

Hibernate/JPA

Microservices

• Service Discovery

API Gateway

• Circuit Breaker Patterns
• Distributed Transactions

Messaging Systems (Kafka/RabbitMQ)

Alibaba Cloud (Ali Cloud)

• Hands-on experience with:
• Alibaba Cloud ECS
• ACK (Alibaba Kubernetes Service)
• OSS (Object Storage Service)
• RDS
• SLB (Server Load Balancer)
• Cloud Monitor
• Function Compute
• RAM (Resource Access Management)
• Container Registry
• VPC Networking

DevOps & Tools

• Docker
• Kubernetes
• Jenkins/GitLab CI
• Maven/Gradle
• Git
• SonarQube

Databases

• MySQL
• PostgreSQL
• MongoDB