Software Developer I (Full Stack / Backend)

Wati; Hong Kong; On-site; HKD 400,000 - 700,000; Full time

Benefits offered by this job

Diverse global team

Collaborative culture

Flexible working arrangements

SaaS innovation impact

Job summary

Wati, the world’s leading WhatsApp-first conversational growth platform, is seeking a Software Engineer I to build and maintain backend services and APIs powering its SaaS platform. You’ll collaborate with cross-functional teams to deliver new features, ensure reliability, and continuously improve performance and deployment efficiency.

Candidates should hold a Bachelor's degree in Computer Science or related field and have 3–5 years backend or full-stack experience, with C# or Golang, RESTful

Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field.
• 3–5 years of backend or full-stack development experience.
• Experience with backend development using C# or Golang.
• Familiarity with databases (SQL or NoSQL) and RESTful APIs; MongoDB or PostgreSQL a plus.
• Basic understanding of Git and cloud deployment (AWS / GCP / Azure).
• Nice to have frontend exposure with JavaScript/TypeScript.

Responsibilities

• Develop, test, and maintain backend services and APIs powering WATI's SaaS platform and WhatsApp Business solutions.
• Collaborate with frontend, mobile, and product teams to deliver new features efficiently.
• Write clean, maintainable code and participate in design reviews and RFC discussions.
• Troubleshoot, debug, and optimize performance across components.
• Support CI/CD and deployment processes for faster iterations.
• Keep up to date with new technologies and propose enhancements for scalability.

Education

Bachelor's degree in Computer Science or related field

Tools

C#

Golang

RESTful APIs

SQL

NoSQL

MongoDB

PostgreSQL

Git

AWS/GCP/Azure

Job description

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 has established itself as the premier choice for businesses leveraging WhatsApp and other messaging channels to connect with customers on their platform of choice. In a world where real-time interactions drive growth, Wati's story is all about business growth through conversations.

At Wati, we believe that every conversation matters, whether it's engaging a first-time prospect, nurturing a qualified lead, or deepening relationships with loyal clients. We transform these conversations into opportunities for building relationships, and strong relationships lead to increased revenue.

Our Platform

The AI-native platform simplifies complex business operations by bringing all customer interactions under one intelligent roof. Designed for scalability and ease of use, our solution delivers a measurable ROI while adapting to businesses of all sizes, from emerging startups to established enterprises.

Our Backing & Partnerships

Wati is proudly backed by world-class investors including Tiger Global, Sequoia Capital, DST Global, and Shopify. As a Premier-tier Partner of Meta, Google, and WhatsApp, we maintain the highest standards of integration and platform excellence.

About The Role

We're looking for a Software Engineer I to build and maintain backend services and APIs that power WATI's SaaS platform. You'll collaborate with cross-functional teams to deliver new features, ensure system reliability, and continuously improve performance and deployment efficiency.

Key Responsibilities

• Develop, test, and maintain backend services and APIs that power WATI's SaaS platform and WhatsApp Business solutions
• Work closely with frontend, mobile, and product teams to deliver new features and improvements efficiently
• Write clean and maintainable code, and contribute to system design discussions and code reviews
• Help troubleshoot, debug, and optimize performance across different components
• Support continuous improvement in development workflow, CI/CD, and deployment processes
• Keep up to date with new technologies and suggest ideas to enhance product performance and scalability

Requirements

• Bachelor's degree or above in Computer Science, Engineering, or related field
• Around 3-5 years of experience in backend or full stack development
• Required: Experience with backend development using C# or Golang
• Familiarity with databases (SQL or NoSQL) and RESTful APIs ; experience with MongoDB or PostgreSQL is a plus
• Basic understanding of version control (Git) and cloud deployment (AWS / GCP / Azure)
• Nice to have: Exposure to frontend development using JavaScript or TypeScript is a plus
• (Optional) Familiarity with frontend frameworks like React, React Native, etc. would be an advantage
• A proactive learner who enjoys solving problems collaboratively in a fast-paced environment

Benefits

• Be part of a diverse, globally distributed team
• Enjoy a collaborative, transparent, and empowering culture
• Competitive compensation and flexible working arrangements
• Work at the forefront of SaaS innovation and make real impact