Senior Java Microservices Developer - Alibaba Cloud

TECH AALTO PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

TECH AALTO PTE. LTD. in Singapore seeks a Senior Java Microservices Developer to design, build, and maintain scalable enterprise applications on Alibaba Cloud using Java, Spring Boot, and microservices.

The role focuses on backend development, cloud-native architectures, distributed systems, and DevOps practices, with hands-on work across databases and containerized deployments with Docker and Kubernetes. You will implement secure APIs, CI/CD pipelines, and observability, collaborating with

Qualifications

• Strong backend development experience with Java and Spring.
• Experience designing and building microservices architectures.
• Hands-on with Alibaba Cloud services and cloud-native patterns.
• Familiarity with relational and NoSQL databases.
• Proficient in DevOps practices and CI/CD pipelines.

Responsibilities

• Design, develop, test, and maintain robust Java-based applications.
• Develop scalable microservices with Java 8/11/17 and Spring ecosystem.
• Build RESTful APIs using Spring Boot and Spring MVC.
• Implement persistence with MySQL, PostgreSQL, and MongoDB.
• Apply design patterns to create maintainable code.
• Tackle JVM tuning, profiling, and performance optimization.
• Implement service discovery, API gateways, circuit breakers, and distributed transactions.
• Integrate Kafka/RabbitMQ for messaging.
• Develop secure applications with Spring Security and auth controls.
• Deploy on Alibaba Cloud (ECS/ACK/OSS/RDS/SLB/VPC).
• Containerize with Docker and orchestrate with Kubernetes.
• Configure CI/CD pipelines with Jenkins or GitLab CI.
• Manage builds with Maven/Gradle and ensure code quality with SonarQube.
• Troubleshoot production issues and collaborate across teams.

Skills

Java 8/11/17

Spring Boot

Microservices

Alibaba Cloud

Docker

Kubernetes

CI/CD (Jenkins/GitLab)

SQL/NoSQL databases

Java concurrency

REST APIs

Education

Bachelor's degree in CS/IT

Tools

Maven/Gradle

Git

SonarQube

Jenkins

GitLab CI

Job description

Senior Java Microservices Developer - Alibaba Cloud

Position Overview

We are seeking an experienced Senior Java Microservices Developer to design, develop, and maintain scalable enterprise applications using Java, Spring Boot, microservices architecture, and Alibaba Cloud services. The ideal candidate will have strong expertise in backend development, cloud-native technologies, distributed systems, DevOps practices,and relational and NoSQL databases.

Key Responsibilities

• Design, develop, test, and maintain robust Java-based applications.
• Develop scalable and secure microservices using Java 8/11/17 and the Spring ecosystem.
• Build RESTful APIs using Spring Boot and Spring MVC .
• Implement persistence layers using Spring Data JPA, Hibernate, MySQL, PostgreSQL, and MongoDB .
• Apply appropriate design patterns and best practices to create maintainable and reusable code.
• Develop multithreaded and concurrent applications with a strong understanding of Java collections and exception handling.
• Analyze and improve application performance through JVM tuning, profiling, and optimization.
• Design and implement microservices components such as:
• Service discovery
• API gateways
• Circuit breakers
• Distributed transactions
• Fault tolerance and resiliency mechanisms
• Integrate messaging systems such as Apache Kafka and RabbitMQ .
• Develop secure applications using Spring Security , authentication, authorization, and access-control mechanisms.
• Deploy and manage applications on Alibaba Cloud , including ECS, ACK, OSS, RDS, SLB, VPC, and related services.
• Build and manage containerized applications using Docker and Kubernetes .
• Configure and maintain CI/CD pipelines using Jenkins or GitLab CI .
• Use Maven or Gradle for build and dependency management.
• Perform code reviews and maintain code quality using tools such as SonarQube .
• Troubleshoot production issues, perform root-cause analysis, and implement permanent fixes.
• Collaborate with architects, DevOps engineers, QA teams, product owners, and other stakeholders.
• Contribute to technical documentation, coding standards, and continuous process improvement.

Required Technical Skills

• Core Java
  • Strong knowledge of Java 8, Java 11, or Java 17 .
  • Java Collections Framework.
  • Multithreading and concurrency.
  • Exception handling and error management.
  • JVM performance tuning and memory management.
  • Object-oriented programming and SOLID principles.
  • Common design patterns and clean-code practices.
• Spring and Backend Technologies
  • Spring Boot.
  • Spring MVC.
  • Spring Data JPA.
  • Spring Security.
  • Spring Cloud.
  • Hibernate and JPA.
  • RESTful web services and API development.
  • Microservices architecture and distributed systems.
• Microservices and Messaging
  • Service discovery and registration.
  • API Gateway implementation.
  • Circuit breaker and resilience patterns.
  • Distributed transactions and eventual consistency.
  • Kafka and/or RabbitMQ.
  • Inter-service communication and API versioning.
  • Logging, monitoring, tracing, and exception management.
• Alibaba Cloud
  • Hands-on experience with the following Alibaba Cloudservices:ElasticCompute Service (ECS)Alibaba Cloud Kubernetes Service (ACK)ObjectStorage Service (OSS)Relational Database Service (RDS)Server Load Balancer (SLB)Cloud MonitorFunction ComputeResource Access Management (RAM)Container RegistryVirtual Private Cloud (VPC) networking
• DevOps and Development Tools
  • Docker.
  • Kubernetes.
  • Jenkins and/or GitLab CI.
  • Maven and/or Gradle.
  • Git and Git-based workflows.
  • SonarQube.
  • Linux and shell scripting.
  • CI/CD pipeline implementation and deployment automation.
• Databases
  • MySQL.
  • PostgreSQL.
  • MongoDB.
  • Database design, indexing, query optimization, and transaction management.

Preferred Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field.
• Experience developing and deploying cloud-native applications.
• Experience with Agile/Scrum development methodologies.
• Knowledge of distributed tracing and observability tools.
• Familiarity with API security, OAuth2, JWT, and secure coding practices.
• Experience with system design, scalability, availability, and disaster-recovery concepts.
• Alibaba Cloud certification is an advantage.

Key Competencies

• Strong problem-solving and analytical skills.
• Good understanding of software architecture and design principles.
• Ability to work independently and within a collaborative engineering team.
• Excellent communication and stakeholder-management skills.
• Strong focus on code quality, security, performance, and reliability.
• Ability to troubleshoot complex technical issues in development and production environments.

Suggested Experience Level

• 5-8 years of professional software development experience
• At least 3 years of hands‑on experience with Java and Spring Boot
• Proven experience developing and deploying microservices on Alibaba Cloud or a comparable cloud platform .

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