full stack developer

Serva Nanotechnology Limited; Hong Kong Island; On-site; HKD 420,000 - 660,000; Full time

Job summary

Serva Nanotechnology Limited is seeking an adaptable Software Engineer to build, scale, and refine our online platform ecosystem. You will work across the stack to design, deploy, and optimize web applications and data systems.

You will own end-to-end delivery from concept to execution, applying rigorous testing and thoughtful architecture to meet evolving business needs in a fast-paced environment. This role requires hands-on experience with cloud deployments (AWS/GCP/Azure), SQL optimization,

Qualifications

• Experience deploying web applications on major cloud providers.
• Strong SQL schema design and query optimization skills.
• Familiarity with relational databases and data modeling.
• Experience with RESTful API integrations and backend services.
• Comfortable working across the stack and learning new tech quickly.

Responsibilities

• Architect and implement scalable online platforms and web applications.
• Design, query, and optimize relational SQL databases for performance.
• Deploy, maintain, and monitor cloud-based environments and serverless/hosted services.
• Integrate third-party APIs and webhooks into the platform workflow.
• Conduct continuous testing and debugging across the application lifecycle.

Skills

Cloud platforms

SQL design

REST APIs

Web development

Data systems

Tools

AWS

GCP

Azure

Job description

We are seeking an adaptable, intellectually curious Software Engineer to help build, scale, and refine our online platform ecosystem. In this role, you will work across the stack to design, deploy, and optimize web applications and data systems. If you thrive on solving unstructured problems, questioning assumptions, and taking ownership of technical deliverables from concept to execution, we would love to connect.

Key responsibilities

Architect, develop, and implement scalable online platforms and web applications.

Design, query, and optimize relational SQL databases to ensure data integrity and performance.

Deploy, maintain, and monitor cloud-based environments and serverless/hosted services.

Identify operational bottlenecks, refactor legacy logic, and integrate third-party APIs/webhooks into the platform workflow.

Conduct continuous testing, validation, and debugging across the application lifecycle to maintain high technical standards.

About you

Hands-on experience deploying and managing web applications on major cloud infrastructure (e.g., AWS, GCP, or Azure).

Solid proficiency in SQL schema design, query optimization, and database administration.

Working knowledge of modern web technologies, backend frameworks, and RESTful API integrations.

Critical thinking and analytical rigor to evaluate why a solution is optimal and anticipate edge cases before they arise.

Experimental and scientific mindset to approach development as an iterative process—hypothesis, build, test, measure, and refine.

Strong self-direction and ownership to take vague business objectives and translate them into concrete technical solutions without needing micro-management.