Java Software Engineer (Senior)

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