Backend Developer (Java)

Ascendion; Metro Manila; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

Ascendion is seeking a Backend Developer to design, develop, and deploy scalable Java-based applications using Spring Boot and microservices. You will build REST APIs, work with AWS, and containerize with Docker and Kubernetes, while collaborating with cross-functional teams to deliver robust solutions.

The role emphasizes solution design, automated testing, and production deployments with a focus on security, scalability, and performance. Mentoring junior developers is welcomed.

Qualifications

• 5 years of hands-on Java development with Spring Boot and backend apps.
• Strong Microservices architecture knowledge and event-driven design.
• Experience designing RESTful APIs, AWS cloud, Docker, and Kubernetes.
• Experience deploying and managing apps using Kubernetes.
• Knowledge of CI/CD pipelines and automated deployment processes.
• Experience with JUnit and Mockito for testing.
• Strong focus on clean code, security, scalability, and performance.
• Code reviews experience and mentoring junior developers preferred.

Responsibilities

• Design, develop, and deploy scalable Java-based applications.
• Build and maintain REST APIs and microservices with Spring Boot.
• Design solutions using microservices and event-driven architecture.
• Contribute to technical solution design based on requirements.
• Develop secure, scalable backend services deployed in AWS.
• Containerize and deploy with Docker and Kubernetes.
• Collaborate with SRE/DevOps for CI/CD and production deployments.
• Write and maintain unit/integration tests (JUnit, Mockito, Gauge).
• Participate in code reviews and enforce coding standards.
• Provide guidance and mentoring to junior developers.
• Ensure reliability, security, scalability, and performance.

Skills

Java

Spring Boot

Microservices

Event-Driven Architecture

RESTful APIs

CI/CD

JUnit

Mockito

Security

Performance optimization

Code reviews

Tools

AWS Cloud services

Docker

Kubernetes

Job description

Ascendion is looking for a talented Backend Developer with strong experience in Java, Spring Boot, Microservices, and AWS to join our growing technology team.

In this role, you will design, develop, and deploy scalable backend applications while working closely with cross-functional teams to deliver high-quality solutions. You will be involved in solution design, API and microservices development, event-driven architecture, automated testing, and production deployments.

Qualifications:

• With 5 years of strong hands-on experience in Java development and solid experience with Spring Boot and building backend applications.
• Strong understanding of Microservices Architecture and experience with Event-Driven Architecture and asynchronous messaging.
• Experience designing and developing RESTful APIs, AWS Cloud services, Docker.
• Experience deploying and managing applications using Kubernetes.
• Knowledge of CI/CD pipelines and automated deployment processes.
• Experience with unit testing frameworks such as JUnit and Mockito.
• Strong understanding of software engineering best practices, clean code, security, scalability, and performance optimization.
• Experience participating in code reviews and mentoring junior developers is highly preferred.

Job Description:

• Design, develop, and deploy scalable and high-performing Java-based applications.
• Build and maintain REST APIs and microservices using Java and Spring Boot.
• Design and implement solutions using Microservices and Event-Driven Architecture.
• Actively participate in technical solution design based on product and business requirements.
• Develop secure, scalable, and high-performance backend services deployed in AWS.
• Containerize and deploy applications using Docker and Kubernetes.
• Collaborate with SRE and DevOps teams to support CI/CD integration and production deployments.
• Write and maintain unit and integration tests using JUnit, Mockito, Gauge, or equivalent testing frameworks.
• Participate in code reviews and ensure adherence to coding standards and best practices.
• Provide technical guidance and mentoring to junior developers.
• Ensure application reliability, security, scalability, and performance.