Software Engineer II - Backend
WATI.ioHong Kong, China
Posted September 9, 2025
Full Time
About the Company
Reimagining customer engagement, Wati is the leading conversational platform built on WhatsApp's Business API. Our easy-to-use software empowers 10,000+ businesses across 160+ countries to deliver personalised, real-time conversations at scale. With innovative AI solutions, we're transforming how companies communicate: Shared inboxes allow seamless collaboration Powerful automation boosts efficiency Broadcast messaging engages customers Intelligent chatbots provide instant support As a fast-growing global SaaS startup, we're passionate about using technology to build meaningful relationships between businesses and customers. Our talented, driven team is united by a vision to empower organizations and redefine connections through meaningful conversations.
Job Description
Wati is seeking a Software Engineer II - Backend to join their team. The role focuses on migrating critical services from a monolithic C# application to Golang microservices, improving performance, and ensuring a scalable, reliable platform. The position involves collaboration with development, QA, DevOps, and product teams to deliver a seamless user experience.
Requirements
- Bachelor’s degree in Computer Science, Engineering, or related field, or equivalent practical experience.
- 5+ years of backend development experience, including 2+ years with C# (.NET Core, ASP.NET, Entity Framework) OR 1+ years with Golang.
- Expertise in distributed systems: REST/gRPC APIs, microservices, message brokers (Kafka/RabbitMQ), and caching (Redis).
- Proficiency in database design and optimization (SQL: PostgreSQL/MySQL; NoSQL: MongoDB).
- Hands-on experience with cloud platforms (AWS/Azure/GCP), containerization (Docker/Kubernetes), and CI/CD pipelines (GitHub Actions/Jenkins).
- Strong understanding of security practices: authentication/authorization (JWT, OAuth), RBAC, and data encryption.
- Fluency in English with excellent communication skills.
