# AI Engineer (Senior)

**Company:** [EPOS](https://jobs.workable.com/companies/g4MAw388fFDSX4jw136P95.md)
**Location:** Ho Chi Minh City, Vietnam
**Workplace:** on site
**Employment type:** Full-time
**Department:** EPOS Vietnam

[Apply for this job](https://jobs.workable.com/view/770b2885-fdff-4d4e-a4c0-2ae74c561b94)

## Description

### About EPOS AI

Established in 2009, EPOS AI 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 AI, 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