Back-end Developer
About this role
1. Have experience in Java, and must be able to use Framework Quarkus
2. Familiar and have hands on experience with Kafka
3. Have solid understanding in building BPMN
4. Willing to work WFO
Role Overview
We are seeking a skilled Senior Java Developer to design, build, and maintain high-performance microservices. You will leverage the Quarkus framework to deliver cloud-native applications, integrate real-time event streaming via Apache Kafka, and orchestrate complex business workflows using BPMN platforms. This role requires full-time, on-site collaboration at our office.
Key Responsibilities
- Backend Development: Design and develop scalable, low-latency microservices using Java and the Quarkus framework. [1, 2, 3]
- Event-Driven Architecture: Implement, optimize, and maintain real-time data pipelines and message streaming using Apache Kafka. [1, 2, 3]
- Workflow Automation: Model, execute, and monitor complex business processes by building and integrating BPMN engines (e.g., Camunda, jBPM). [1, 2]
- Performance Optimization: Utilize Quarkus features for fast startup times and low memory footprints in containerised environments (Docker/Kubernetes). [1, 2]
- On-Site Collaboration: Work daily from the office to participate in agile ceremonies, code reviews, and cross-functional brainstorming sessions.
Technical Requirements
- Core Expertise: Strong proficiency in Java (version 11 or higher preferred) and object-oriented design principles.
- Frameworks: Hands-on experience building production-grade microservices with Quarkus.
- Messaging & Streaming: Solid understanding of Apache Kafka, including topics, partitions, producers, consumers, and ecosystem tools.
- Process Modeling: Deep conceptual and practical understanding of BPMN 2.0 standards and workflow automation tools.
- Databases: Experience with SQL (PostgreSQL, MySQL) and NoSQL databases. [1, 2, 3, 4, 5]
Soft Skills & Work Environment
- Work Mode: 100% Work From Office (WFO).
- Problem Solving: Strong analytical skills to debug complex, distributed asynchronous systems.
- Communication: Ability to clearly explain technical designs and workflow models to both technical and non-technical peers.
Salary: Max early mid 9 Gross PKWT & Max early Senior 16 PKWT
Company at a glance
At Asian Technology Solutions (ATS), we empower businesses to thrive in a digitally complex world through innovation, integrity, and service excellence. As a strategic partner to enterprises across Asia, the Middle East, and Australia, ATS delivers transformative solutions in Talent Acquisition, Consulting, IT Services, Cyber Security, and Fraud Prevention.
From building high-performing teams to implementing intelligent security systems and driving digital transformation, we help organizations unlock agility, resilience, and long-term growth. Our regional expertise, combined with global best practices, allows us to deliver tailored strategies that meet the evolving needs of our clients.
We don’t just offer solutions—we co-create success stories. Let’s shape the future together.
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