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 • Design, build, and deploy production-ready AI agents to solve complex business problems. • Research, experiment with, and develop AI solutions from scratch, turning ideas and prototypes into practical, production-ready applications. • Integrate AI models, agents, and AI-powered capabilities into existing systems, backend services, and business workflows. • Take ownership of the end-to-end AI development lifecycle, from research and architecture design to implementation, evaluation, deployment, and optimization. • Build scalable and reliable AI services, optimizing system performance, accuracy, latency, and cost. • Explore emerging AI technologies and frameworks to identify new opportunities and improve existing solutions. • Collaborate with cross-functional teams to translate business needs into AI solutions and provide technical guidance to other engineers. Requirements • Bachelor’s Degree in Computer Science / Information Technology / Software Development or related fields. Must have: • 6+ years of software engineering experience, with strong backend development and system design skills. • Proven experience building AI agents and developing AI solutions from scratch, with the ability to independently research, prototype, and implement solutions beyond basic LLM API integration. • Experience integrating AI models, agents, or AI services into existing applications and production systems. • Solid understanding of LLMs, AI agent architectures, and related technologies. • Working knowledge of Java and the ability to understand or contribute to Java-based codebases. • Experience building and deploying production-grade APIs, microservices, or AI applications. • Good/Fluent English communication is mandatory. • Strong problem-solving skills, technical ownership, and willingness to explore new AI technologies. Nice to have: • Experience with agent frameworks such as LangGraph, LangChain, CrewAI, or similar tools. • Practical experience with RAG, vector databases, embeddings, and retrieval optimization. • Knowledge of model training, fine-tuning, inference optimization, or open-source AI models.Experience with cloud platforms, Docker, CI/CD, and distributed systems. • Experience with other programming languages and AI coding assistants. 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