SUN GROUP ★ 2.7

Working Location: Sun Ancora Tower, 03 Luong Yen, Hanoi (onsite)

As a Backend Engineer within the Platform teams, you will design, build, and operate highly scalable, highly available, and fault-tolerant AI-first E-Commerce and Digital Experience solutions that power Sun Group’s diverse ecosystem.

You will work on distributed systems serving millions of users and millions of transactions per month, addressing complex real-world scenarios across travel, hospitality, real estate, aviation, and entertainment. Our platforms integrate with world-class core systems and are natively enhanced by state-of-the-art AI technologies.

Responsibilities

• Design and operate microservices and event-driven components (Kafka/RabbitMQ) with strong observability (metrics, logs, traces), SLOs, and graceful degradation.
• Build idempotent, secure REST/gRPC APIs for platform services; handle retries, backoff, saga/outbox patterns, and data consistency.
• Integrate with payment gateways, third-party partners and Sun Group’s internal platforms securely via OAuth2/OIDC/JWT, API Gateway, and proper rate-limiting.
• Apply Agile and DevOps practices; CI/CD, automated testing, monitoring; to deliver high-quality code at speed.
• Contribute to technical design discussions, architecture improvements, and engineering best practices.

Qualifications

• Bachelor’s degree in Computer Science, IT, Electronics/Telecom, or related fields.
• 4+ years backend development on Linux; solid in at least one of .NET/Go (or Java/Python).
• Proven experience designing high-volume transactional services (throughput, latency, scalability, caching with Redis).
• Hands-on with RDBMS (SQL Server, PostgreSQL, MySQL) and NoSQL (MongoDB/Redis); schema design, indexing, and performance tuning.
• Experience with Docker, Kubernetes, CI/CD; automated testing and observability.
• Strong understanding of data structures, algorithms, object-oriented design, and familiarity with WebSocket or gRPC is a strong plus.
• Exposure to cloud platforms such as Azure, AWS, or GCP is an advantage. Experience with Kafka, API Gateway, service mesh is a plus.

Soft Skills

• Strong problem-solving and system thinking for complex, real-world transactional flows.
• Clear communicator, collaborative with cross-functional teams.
• Growth mindset, fast learner, comfortable with ambiguity; proactive in raising quality bars.

WHY YOU‘LL LOVE WORKING HERE

• “An cư lạc nghiệp” policy: eligible employees receive full-value commercial apartments for long-term tenure.
• Premium SunCare Insurance for employees and their families (fully covered for employees).
• Annual comprehensive health check-up at Sun Group International Hospital.
• Complimentary access to theme parks, cable cars, cultural/symphonic events, plus exclusive discounts at Hotels & Resorts.
• Special offers across aviation, NCB banking services, and real estate products.
• A dynamic, innovation-driven working environment where talent and contributions are recognized and rewarded.