Job Title: Senior Java Developer
Location: District 1, HCM city
About Us:
At CJ OliveNetworks Vina, we drive digital transformation and innovation of space and daily life with our experience and know-how in successfully providing end-to-end IT service based on life and culture. Our mission is contributing to the growth and happiness of our employees and global community by creating customer values through ONLYONE digital experience.
Job Description
We are seeking an experienced Senior Java Backend Developer to join our engineeringt eam. You will build scalable, high-performance backend services that power trading, payment, and financial platforms. This role requires deep expertise in modern Java, microservice architecture, and cloud-native environments.
Responsibilities
- Design, build, and maintain scalable backend systems using Java 21+ / Spring Boot 3+.
- Implement microservices and APIs with a focus on performance, security, and resilience.
- Optimize queries and data pipelines (MySQL/MongoDB).
- Integrate with messaging systems (Kafka, Redis Pub/Sub) and API gateways (Kong/Traefik).
- Lead code reviews, refactoring, and architecture discussions.
- Collaborate with DevOps to deliver production-grade services on Docker/Docker Swarm/Kubernetes.
- Mentor junior engineers and contribute to best practices.
Requirements
Technical Skills
- Bachelor's degree in Information Technology, Management Information Systems, Computer
- Science, or a related field.
- 5+ years of experience with Java backend development.
- Strong knowledge of Spring Boot, RESTful APIs, asynchronous processing, and security standards (JWT/OAuth2).
- Experience with RDBMS, query tuning, and caching strategies.
- Hands-on with CI/CD (Jenkins, Git), containerization, and monitoring stacks (Prometheus,
- Grafana, Loki).
- Familiar with cloud or hybrid deployments.
- Excellent problem-solving and system design skills
Soft Skills
- Strong willingness to learn and adapt to new technologies.
- Good teamwork and collaboration skills.
- Good communication skills to work effectively with internal and external stakeholders.
- Basic English communication skills, including reading, writing, and speaking.
Preferred Qualifications
- Knowledge of financial/trading systems or fintech platforms.
- Familiarity with event-driven architecture and reactive programming.
- Experience with high availability & zero downtime deployments.
Why you'll love working here
1. Salary and Benefit
- Attractive salary and benefits. Competitive Basic Salary; 13th Salary; Lunch, Gasoline and Telephone allowance; Incentive Bonus and annual salary review.
- Premium Healthcare for you, 100% covered by the company. Annual medical checking up to USD 5,000 per year.
- Full package: Full government social, health and unemployment insurance.
- Extra bonus per personal event such as wedding, family's funeral, birthday, newborn baby, etc.
- Paid leave. 12 days per year and 01 day for Company Foundation Day, long service leave.
- Discount 40% for CJ's brands: CGV Cinema, Tous Les Jours, CJ Food, Meet Master, CJ Market, etc.
2. Working Environment
- Working time: Monday – Friday. We work 40 hours per week.
- English working environment: Chance to work onsite abroad and work on challenging GDC projects. Work closely with both Vietnamese and Korean experts.
- Internal English/ Korean Class: Fully sponsored by the Company after working time.
- Company trip and team building, football club, dinner party every month. We love playing teamwork games.
- Free snacks, drinks (tea, coffee, etc.).
