Software Developer (Mid-Level) – Full Stack (.NET, React & AI)
OKAY.com is a leading tech-driven real estate agency in Hong Kong, specialising in luxury property. We build and run our own systems in-house - a proprietary ERP, our public website, and a growing set of data and automation tools.
We are hiring an experienced full stack developer to build modern web products and AI-enabled features. You will own features end to end, across frontend, backend, and cloud, and see what you build used by the business within weeks rather than quarters.
AI is a core part of this role, not a side project. We are actively putting AI into our products and internal workflows, and we expect you to have already done this yourself - not just read about it.
What you'll doDesign, build, test, and maintain scalable web applications across frontend and backend
Build new functions into our proprietary ERP, and analytics and automation tools on top of our data
Develop features using React.js, C#/.NET 8, and RESTful APIs
Ship AI-enabled features - integrating AI APIs into existing products, and building internal tools for content generation, summarisation, search, and workflow automation
Improve prompt quality, output reliability, and safety controls on what we ship
Work with product, design, marketing, and business teams to turn business problems into working software
Take part in code reviews, CI/CD pipelines, and engineering best practices
Troubleshoot and resolve production issues to keep performance and user experience strong
What we're looking for4+ years of professional software development experience, able to take a feature from requirement to production with limited supervision
Strong React.js - comfortable building and maintaining real applications, with sound judgement on component design and state management
Solid modern frontend practices: responsive UI, reusable components, clean architecture
Backend experience with C#, ASP.NET Core / .NET 8, and REST API design
Working knowledge of SQL Server, T-SQL, LINQ, and Entity Framework
Comfortable with JSON, Git, and CI/CD pipelines (Azure DevOps preferred)
Hands-on experience with Azure - App Service, Container Apps, Functions, or Azure SQL. AWS experience considered.
Good problem-solving ability and clear communication in English
AI experience - requiredYou have shipped something real using AI services (Azure OpenAI, OpenAI, Anthropic, or similar) - a product feature, an internal tool, or an automation that people actually use
Practical prompt design and iteration, and a sense of when AI is the wrong tool for the job
Awareness of output reliability, hallucination handling, and data privacy when building AI features
You use AI coding tools in your day-to-day work and can tell us how
Competitive salary with comprehensive benefits
Flexible working arrangements that support work-life balance
Hands-on exposure to AI projects and emerging technologies
Clear opportunities for professional development and career progression
Office in Central, Hong Kong - a short walk from the MTR
OKAY.com is a disruptive real estate agency using technology to change the Hong Kong Real Estate market. With an award-winning technology
platform and business model, we are a growing company offering attractive benefits and growth possibilities. Having been featured on CNBC, Bloomberg, TechInAsia, and various other media, please visit our website or media links to learn more about us.
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