Job Description

Our client is a fast-growing technology company creating innovative interactive entertainment experiences that combine motion, play, and technology.
They are now looking for a Senior Software Engineer (Platform Services) to join their growing team in Hong Kong.
This is a key technical role responsible for building the scalable backend systems that power the company’s global platform, working closely with internal stakeholders and an external development team to design and implement backend infrastructure that is robust, observable, and scalable to support millions of connected devices worldwide.

What you will do:

• Design, build, and maintain backend services for e-commerce, user accounts, subscriptions, content delivery, and analytics.
• Develop APIs and backend logic primarily using .NET (C#) and Node.js, with occasional Python integration.
• Build fault-tolerant and observable systems deployed through Docker and Kubernetes.
• Implement and optimize authentication workflows, including OAuth and device-based flows.
• Architect distributed systems with message queues and event-driven patterns.

What you will need:

• Minimum 5 years of experience developing backend systems for high-traffic or consumer-facing products.
• Proficiency in .NET (C#), Node.js, and Python.
• Hands-on experience with Docker, Kubernetes, and modern cloud deployment practices.
• Solid understanding of distributed architectures, databases (PostgreSQL, NoSQL), and scalable infrastructure.
• Strong grasp of ACID, idempotency, and message delivery guarantees.
• Excellent analytical, problem-solving, and communication skills.
• Proven ability to work with distributed teams across time zones.

Nice-to-haves:

• Experience implementing authentication patterns (OAuth, device pairing).
• Familiarity with real-time messaging tools such as Kafka, SQS, or Pub/Sub.
• Exposure to Firebase, Supabase, or similar backend-as-a-service platforms.
• Understanding of security, privacy, and compliance frameworks.