# Java Software Engineer (Senior) - Strong AI Integration

> EPOS · Ho Chi Minh City, Vietnam · Full-time · Posted 2026-10-21

**Workplace:** on_site

**Department:** EPOS Vietnam

## Description

### 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, develop, and maintain **scalable Java backend services** using **Spring Boot** and **microservices architecture**.
-   Collaborate with AI Engineers to **integrate LLM-powered solutions and AI agents** into EPOS’s existing systems and business workflows.
-   Develop **APIs, backend components, and integration logic** to connect AI services with internal systems, databases, and business applications.
-   Build and enhance **AI agent workflows**, including tool calling and multi-step execution, where required.
-   Ensure the performance, reliability, security, and scalability of AI-integrated backend services in production.
-   Troubleshoot integration issues, and maintain high standards of code quality and system maintainability.
-   Contribute to **system architecture**, code reviews, and technical improvements while mentoring junior engineers.

## Requirements

-   Bachelor’s degree in Computer Science / Information Technology / Software Engineering, or a related field.
-   **At least 6 years of experience** in Java backend development, with strong proficiency in **Java, Spring frameworks** (Spring Boot, JUnit, etc)**, RESTful APIs, and microservices architecture**.
-   Solid experience with **Cloud platforms (AWS, Azure, GCP)** and cloud-based application development.
-   Solid understanding of **system design, API integration, distributed systems, and production-grade software development.**
-   Hands-on experience **integrating LLMs, AI services, or AI agents** into applications or backend systems.
-   Familiarity with **AI agent workflows**, tool/function calling, and LLM orchestration frameworks is a plus.
-   Experience with cloud platforms, Docker, Kubernetes, and CI/CD is an advantage.
-   Strong problem-solving, communication, and cross-functional collaboration skills.
-   **Good English communication is mandatory.**

## 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

## Apply

[Apply at EPOS](https://apply.workable.com/epos/j/B12B1DAD6B/apply)

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