Senior Software Engineer (Platform Services)

TL;DR

Senior Software Engineer (Platform Services): Building scalable backend systems to power a global platform with an accent on e-commerce, user accounts, subscriptions, content delivery, and analytics. Focus on implementing authentication workflows, architecting distributed systems, and optimizing performance for millions of connected devices.

Location: Onsite in Hong Kong

Company

Our client is a fast-growing technology company creating innovative interactive entertainment experiences that combine motion, play, and technology.

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.

Requirements

• 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.
• Proven ability to work with distributed teams across time zones.

Nice to have

• 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.

Culture & Benefits

• Opportunity to join a fast-growing technology company.
• Work on innovative interactive entertainment experiences.
• Collaborate with internal stakeholders and an external development team.