Software Engineer II

4 weeks ago Be among the first 25 applicants About Us Wati is the world's leading WhatsApp-first conversational growth platform, empowering businesses to build deeper customer relationships and accelerate revenue growth. Trusted and loved by over 14,000 customers across 100+ countries, Wati connects with customers on their platform of choice through WhatsApp and other messaging channels. We believe every conversation matters and can turn interactions into opportunities for growth. Our Platform The AI-native platform simplifies complex business operations by bringing all customer interactions under one intelligent roof. It scales to fit startups to enterprises and delivers measurable ROI. Our Backing & Partnerships Wati is backed by Tiger Global, Sequoia Capital, DST Global, and Shopify. As a Premium-tier Partner of Meta, Google, and WhatsApp, we uphold high standards of integration and platform excellence. As Wati scales, we’re looking for a Software Engineer II - Backend to work with Development, QA, DevOps, Support and Product. You will participate in senior technology strategy discussions, drive ideation across a distributed software team, develop implementation roadmaps, and transform ideas into software products and solutions. What you’ll do Refactor, test, and maintain components of our monolithic C# application, gradually migrating critical services to Golang microservices with clean, reusable, and efficient code Design, develop, and deploy high-traffic distributed systems (REST/gRPC APIs, event-driven workflows, data pipelines) using Go and C#, ensuring fault tolerance and resilience Improve latency, throughput, and resource efficiency in both legacy C# and modern Go services, leveraging caching (Redis), message brokers (Kafka/RabbitMQ), and database optimization Collaborate with cross-functional teams to deliver a seamless and engaging user experience Partner with DevOps to streamline CI/CD pipelines, with QA to automate testing, and with Product to align technical solutions with business requirements Participate in system design reviews, advocate for scalable patterns (e.g., circuit breakers, load balancing), and ensure security best practices (auth, RBAC, encryption) Troubleshoot and resolve backend performance, scalability, and reliability challenges in production environments Lead code reviews, mentor junior engineers, and champion maintainable code across C# and Go codebases 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) in monolithic architectures, OR 1+ years with Golang (Gin, Echo, Goroutines, Go modules) or strong willingness to learn 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 to collaborate across global teams What will make you stand out Hands-on experience coding with tools like GitHub Copilot, Cursor, or other AI-assisted development environments Proven track record of building and launching products from 0 to 1 Prior experience developing overseas or export-focused applications Experience with serverless architectures (e.g., AWS Lambda) or microservices architectures Knowledge of event-driven systems (e.g., Kafka, RabbitMQ) Prior work on scalable, high-traffic applications Job details Seniority level: Mid-Senior level Employment type: Full-time Industries: IT Services and IT Consulting Get notified about new Software Engineer jobs in Hong Kong, Hong Kong SAR. #J-18808-Ljbffr