Java Software Engineer (Senior)

About this role

About EPOS Vietnam
Established in 2009, EPOS Vietnam serves as the technical hub of EPOS Singapore, a leading provider of cutting-edge Point-of-Sale (POS) and SaaS solutions. Backed by Ant International — a global leader in digital payments and financial technology — we play a pivotal role in developing innovative, scalable, and user-centric digital solutions that power EPOS products. Our technologies enable thousands of SMEs in Singapore, and with ongoing expansion plans across Asia, to digitize and grow their operations through cost-effective and reliable platforms.
At EPOS Vietnam, we cultivate a collaborative and dynamic culture driven by innovation and a passion for transforming businesses through technology. Join us to shape the future of digital solutions across Asia and beyond!

Key Contributions

• Develop and maintain clean, scalable, and reliable Java backend services

• Optimize system performance, reliability, and development workflows

• Identify workflow bottlenecks and leverage AI tools and automation to improve team productivity

• Define and promote AI usage standards and best practices across the engineering team

• Establish validation practices for AI-generated code to ensure quality and maintainability

• Build reusable AI playbooks, templates, and toolkits to scale effective practices across the team

• Develop and maintain unit tests and participate in code reviews to ensure code quality

• Collaborate with engineers and cross-functional teams to design and deliver new features

• Contribute to the evolution of microservices architecture, focusing on scalability, reliability, and maintainability

• Mentor and guide junior engineers, sharing technical knowledge and best practices
Requirements

• Bachelor’s degree in Computer Science / Information Technology / Software Development, or related fields

• At least 6 years of experience in Java Backend and Spring frameworks (Spring Boot, JUnit, etc)

• Solid experience with Cloud platforms (AWS, Azure, GCP) and cloud-based application development

• Experience with AI-assisted development, workflow automation, or AI tools is a must

• Good knowledge of Relational Databases, SQL, and ORM

• Strong understanding of OOP, data structures, design patterns, concurrency, and problem-solving

• Understanding of SDLC and software engineering best practices

• Good/Fluent English communication is mandatory

• Proactive, open-minded, and willing to challenge existing ways of working and drive continuous improvement
Benefits
We are a multinational, product-driven company specializing in proprietary POS solutions — developing in-house and delivering directly to our worldwide customers.
Benefits

• Recognition & Rewards:

• Performance Bonus (subject to the company’s business results and the employee’s performance evaluation)

• Biannual Performance Review and Salary Adjustment

• Comprehensive Insurance Coverage:

• Full government public insurance contributions based on gross salary

• Premium health insurance from Liberty Insurance

• Annual health check

• Clear career development and growth structure; Training sessions and Learning workshops

• 14 days of annual leave and one additional day of leave for every year of service

• Laptop/MacBook and top-notch facilities are provided based on each role

• Agile/Scrum-based internal workflows for efficient and collaborative development

• Company trips, parties and regular team-building activities; Weekly happy hour, coffee, snacks, and board games
Working Environment & Culture

• International Workplace: English-speaking environment

• Positive and Open-Minded Culture: Engineers are encouraged to propose innovative solutions that enhance productivity and code quality

• 1-on-1 Mentorship: Monthly coffee sessions with managers offer personalized feedback, goal setting, and career development opportunities

• Flexible Working Hours: Promote work-life balance and individual productivity