Senior Java Developer – AWS Cloud & L3 Support

United States Digital Space LLC; Singapore; On-site; SGD 133,920 - 200,880; Full time

Job summary

United States Digital Space LLC is seeking a Senior Java Developer to modernize legacy applications and build cloud-native solutions.

You will develop RESTful services, migrate monoliths to microservices, and support production systems in an AWS environment. Expertise in Java 8/11/17+, Spring, Docker, Kubernetes, and CI/CD is required for this on-site role.

Qualifications

• 6+ years of Java development experience.
• Experience in cloud migration, application modernization, and L3 support.
• Experience working in Agile and DevOps environments.

Responsibilities

• Develop and maintain applications using Java 8/11/17+, Spring Boot, Spring Framework, Spring Cloud, and Microservices.
• Modernize legacy monolithic applications into cloud-native and microservices-based solutions.
• Design and develop RESTful APIs using Hibernate/JPA and enterprise integration patterns.
• Support AWS cloud migration and application modernization initiatives.
• Build and deploy containerized applications using Docker and Kubernetes (EKS/ECS).
• Implement and support CI/CD pipelines and DevOps practices.
• Provide L3 production support, troubleshoot complex issues, perform root cause analysis (RCA), and deliver permanent fixes.
• Monitor application performance using AWS CloudWatch, Prometheus, Grafana, and ELK Stack.
• Ensure application security through AWS IAM, encryption, and secrets management best practices.

Skills

Java

Spring Boot

Microservices

AWS Cloud

L3 Production Support

Tools

Docker

Kubernetes (EKS/ECS)

Hibernate/JPA

Maven/Gradle

AWS CloudWatch

CI/CD

Job description

We are seeking a Senior Java Developer with strong experience in Java, Spring Boot, Microservices, AWS Cloud, and L3 Production Support. The ideal candidate will be responsible for modernizing legacy applications, developing cloud‑native solutions, supporting enterprise applications, and ensuring system stability in production environments.

Key Responsibilities

• Develop and maintain applications using Java 8/11/17+, Spring Boot, Spring Framework, Spring Cloud, and Microservices.
• Modernize legacy monolithic applications into cloud‑native and microservices‑based solutions.
• Design and develop RESTful APIs using Hibernate/JPA and enterprise integration patterns.
• Support AWS cloud migration and application modernization initiatives.
• Build and deploy containerized applications using Docker and Kubernetes (EKS/ECS).
• Implement and support CI/CD pipelines and DevOps practices.
• Provide L3 production support, troubleshoot complex issues, perform root cause analysis (RCA), and deliver permanent fixes.
• Monitor application performance using AWS CloudWatch, Prometheus, Grafana, and ELK Stack.
• Ensure application security through AWS IAM, encryption, and secrets management best practices.

Required Skills

• Strong hands‑on experience in Java 8/11/17+, Spring Boot, Spring Cloud, Microservices.
• Experience with REST APIs, Hibernate/JPA, Maven/Gradle.
• Strong understanding of AWS architecture and migration services.
• Hands‑on experience with Docker, Kubernetes, Amazon EKS/ECS.
• Experience with DevOps, CI/CD, monitoring, and production support.
• Strong troubleshooting and problem‑solving skills.

Qualifications

• 6+ years of Java development experience.
• Experience in cloud migration, application modernization, and L3 support.
• Experience working in Agile and DevOps environments.

Pay: Up to $1.00 per month

Work Location: In person