Backend API Engineer - Java, Spring Boot & Microservices

United States Digital Space LLC; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

United States Digital Space LLC in Singapore seeks a Backend API Developer to design, implement, and support backend applications, APIs, and integrations. Collaborate across product, frontend, DevOps, QA, and other teams to deliver scalable, secure solutions with maintainable code.

The role emphasizes Java/Spring Boot, Apache Camel integrations, RESTful API development, microservices, and cloud/containerized deployments. Strong problem-solving, collaboration, and testing are expected.

Qualifications

• Degree in Computer Science, Information Technology, Engineering, or related discipline, or equivalent practical experience.
• Hands-on experience with Java and Spring Boot development.
• RESTful API development, DI, and security concepts.
• Experience using Apache Camel and EIP for integration.
• Knowledge of microservices and distributed systems.
• SQL and/or NoSQL databases exposure.
• Familiarity with Kafka, ActiveMQ, RabbitMQ.
• Docker and Kubernetes experience for deployment and scalability.
• Version control with Git; CI/CD concepts and pipelines.
• Cloud platform exposure (AWS/Azure/GCP) and Spring Cloud basics.
• Observability with Prometheus, Grafana, ELK stack.

Responsibilities

• Design, develop, and maintain backend services using Java and Spring Boot.
• Build, configure, and support system integrations and messaging workflows using Apache Camel.
• Develop and maintain RESTful APIs with a focus on scalability, performance, security, and maintainability.
• Collaborate with product, frontend, DevOps, QA, and other teams to deliver end-to-end solutions.
• Write clean, well-documented code following coding standards and best practices.
• Develop and execute unit tests, integration tests, and support automated testing.
• Troubleshoot production issues and implement timely resolutions.
• Participate in code reviews and drive continuous improvement initiatives.
• Support deployment, monitoring, and operational activities in cloud and containerized environments.
• Assist in maintaining application reliability, availability, and performance.

Skills

Java

Spring Boot

REST APIs

Apache Camel

Microservices

SQL/NoSQL

Kafka/Messaging

Docker

Kubernetes

Cloud basics

Git

CI/CD

Agile/Scrum

Security concepts

Spring Cloud

Observability

Education

Degree in Computer Science / IT / Engineering, or equivalent

Tools

Docker

Kubernetes

Git

Prometheus

Grafana

ELK Stack

Kafka

ActiveMQ/RabbitMQ

Job description

United States Digital Space LLC in Singapore seeks a Backend API Developer to design, implement, and support backend applications, APIs, and integrations. Collaborate across product, frontend, DevOps, QA, and other teams to deliver scalable, secure solutions with maintainable code.

The role emphasizes Java/Spring Boot, Apache Camel integrations, RESTful API development, microservices, and cloud/containerized deployments. Strong problem-solving, collaboration, and testing are expected.