Unity SDK Developer

United States Digital Space LLC; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

United States Digital Space LLC is seeking a skilled Unity SDK Developer to join their team in Singapore. This on-site position involves building and maintaining internal Unity SDKs, focusing on third-party services integration like authentication and monetization.

The ideal candidate will possess strong Unity and C# proficiency, extensive experience with SDKs, and a degree in Computer Science or a related field. Responsibilities include designing SDK components and collaborating with various teams throughout the development lifecycle.

Qualifications

• 3+ years of professional experience in Unity development.
• Hands-on experience integrating third-party SDKs or services.
• Experience with Android and/or iOS native integrations.
• Good communication skills.

Responsibilities

• Design, develop, and maintain internal Unity SDKs and tools.
• Integrate and manage third-party services (e.g., authentication, analytics, ads, payments).
• Collaborate with cross-functional teams to ensure smooth SDK integration and adoption.
• Optimize performance across SDK components and related features.

Skills

C# and Unity engine

UI design within SDKs

Networking protocols (HTTP, WebSocket)

Debugging and problem-solving

Education

Bachelor’s degree in Computer Science, Software Engineering, or related field

Tools

CI/CD pipelines and version control tools (e.g., Git)

Job description

About the role

We’re looking for a skilled Unity SDK Developer to join our team in Singapore. In this role, you will focus on building and maintaining internal Unity SDKs, with a strong emphasis on integrating third‑party services such as authentication, analytics, monetization, and payments.

You will also contribute to game feature development, ensuring solutions are scalable, reliable, and easy to integrate across multiple projects.

This is an on-site position based in Singapore.

Responsibilities

1. Design, develop, and maintain internal Unity SDKs and tools.
2. Integrate and manage third‑party services (e.g., authentication, analytics, ads, payments).
3. Design and implement SDK‑level UI components and flows (e.g., login screens, consent dialogs, payment interfaces).
4. Ensure SDK usability, consistency, and ease of integration for other development teams.
5. Collaborate with cross‑functional teams to ensure smooth SDK integration and adoption.
6. Develop and maintain game features and systems using Unity and C# when required.
7. Ensure compatibility with platform requirements for Android and iOS.
8. Optimize performance across SDK components and related features.
9. Troubleshoot and resolve integration issues and platform‑specific bugs.
10. Participate in the full development lifecycle: planning, implementation, testing, and deployment.
11. Build tools and utilities to improve development workflows and efficiency.
12. Stay up to date with Unity updates, platform changes, and industry best practices.

Qualifications

1. Bachelor’s degree in Computer Science, Software Engineering, or a related field.
2. 3+ years of professional experience in Unity development.
3. Strong proficiency in C# and Unity engine.
4. Hands‑on experience integrating third‑party SDKs or services.
5. Experience designing and implementing UI within SDKs or reusable modules.
6. Experience with Android and/or iOS native integrations.
7. Solid understanding of mobile application architecture and lifecycle.
8. Experience with networking protocols (HTTP, WebSocket).
9. Familiarity with CI/CD pipelines and version control tools (e.g., Git).
10. Strong debugging and problem‑solving skills, especially for cross‑platform issues.
11. Good communication skills.
12. Willingness to work on‑site in Singapore.

Preferred

• Experience building or maintaining a shared SDK, framework, or plugin used across multiple projects.
• Experience implementing user‑facing flows within SDKs (e.g., onboarding, authentication, payments).
• Experience publishing apps on mobile platforms.
• Familiarity with modular architecture and SDK design principles.
• Experience building custom Unity editor tools.
• Understanding of platform compliance and privacy requirements.
• Exposure to serialization tools such as protobuf.