Senior Software Engineer

RemoteJobsOne; Hong Kong; Remote; HKD 540,000 - 1,080,000; Part time

Job summary

RemoteJobsOne is seeking expert Senior Software Engineers to support a customer’s AI training project. In this role, you’ll apply your domain knowledge to help train next-generation AI systems and influence how models learn, reason, and perform through high-quality input.

As an expert, you will create reinforcement learning environments to test software engineering problems such as fixing code, adding features, refactoring, and optimizing performance.

Qualifications

• Hands-on expertise in at least one listed language.
• Deep understanding of algorithms and data structures.
• Proven ability to debug complex systems and optimize performance.

Responsibilities

• Contribute expert-level code samples, debugging strategies, and development insights in Python3, Java, Rust, Go, C++, or TypeScript.
• Analyze, troubleshoot, and resolve complex software defects and performance bottlenecks.
• Implement robust new features with scalability and maintainability in mind.
• Refactor and optimize legacy code for clarity and longevity.
• Document technical reasoning, solution approaches, and code decisions to enhance AI training data quality.
• Review and validate peer-contributed code and submissions for accuracy.

Skills

Python3

Java

Rust

Go

C++

TypeScript

Job description

Pay: $50–$100/hr

Role Title: Senior Software Engineer

Role Type: Contractor (~15 hrs a week)

Location: Remote

the company is selecting expert Senior Software Engineers to support a customer’s innovative project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

As an expert you will be creating Reinforcement Learning Environments which test and AI model's ability to solve complex software engineering problems related to fixing code, creating features, refactoring code and optimizing performance. You will be tasked with creating a reproducible environment and golden reference solution for the problem.

Scope of Work

• Contribute expert-level code samples, debugging strategies, and development insights in Python3, Java, Rust, Go, C++, or TypeScript.
• Analyze, troubleshoot, and resolve complex software defects and performance bottlenecks in diverse codebases.
• Implement robust new features, ensuring scalability, maintainability, and adherence to software best practices.
• Refactor and optimize legacy code to improve clarity, efficiency, and long-term reliability.
• Document technical reasoning, solution approaches, and code decisions to enhance AI training data quality.
• Review and validate peer-contributed code and technical submissions for accuracy and clarity.

Preferred Qualifications

• Significant hands-on expertise in at least one of the following: Python3, Java, Rust, Go, C++, or TypeScript.
• Deep understanding of algorithms, data structures, and software engineering principles.
• Proven ability to debug complex systems, resolve bugs, and deliver effective optimizations.
• Experience with large codebase refactoring and legacy system modernization.
• Track record of delivering high-impact features from conception through delivery within cross-functional projects.
• Strong documentation and communication skills to articulate technical concepts clearly.
• Interest in or curiosity about AI and its technical challenges (previous AI experience not required).

Compensation Structure

Compensation is output-based; experts are paid per task that meets the project specifications. The time required to complete work may vary depending on the expert’s experience and workflow. Minimum submission requirements apply. Experts must submit a minimum of tasks per week.

Start Timeline & Availability

We typically fill roles within 48 hours and are looking for experts ready to jump in right away. If selected, we expect you to start your first tasks within 24–48 hours of completing onboarding.