Competitive Coder

RemoteJobsOne; Hong Kong; Remote; HKD 487,000 - 703,000; Part time

Job summary

RemoteJobsOne is seeking a Competitive Coder for a fully remote contractor role based in Hong Kong. You will design and implement reinforcement learning environments to train AI systems, focusing on robust checkers and test suites for competitive programming problems.

In this role you will create unique problems, write a reference solution in C++, and ensure the checker handles edge cases. This position offers hourly pay and flexible hours for candidates ready to start quickly.

Qualifications

• Expertise in competitive programming and coding problem analysis.
• Advanced proficiency in C++ for implementing robust checkers.
• Strong analytical abilities to interpret complex constraints and paths.
• Excellent written and verbal communication skills; articulate details clearly.
• Experience working independently in a remote, collaborative environment.

Responsibilities

• Design and implement checkers for problems with multiple valid outputs.
• Evaluate participant submissions against complex statements from platforms like Codeforces.
• Collaborate with the customer's team to refine requirements and resolve ambiguities.
• Develop clear, maintainable C++ code to assess outputs and edge cases.
• Document checker logic and communicate intricacies clearly.
• Provide feedback to problem setters on test case improvements.
• Stay updated with competitive programming standards and best practices.

Skills

Competitive programming

C++

Problem analysis

Analytical thinking

Written communication

Verbal communication

Independent work

Remote collaboration

Job description

This is a fully remote position, open to candidates based in Hong Kong.

Pay: $45–$65/hr

Job Title: Competitive Coder

Job Type: Contractor (15hrs+ a week)

Location: Remote

Job Summary: 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 an AI model’s ability to solve complex competitive programming problems. You will be tasked with creating a unique custom problem absent from all existing online judges, creating a reference solution and creating a robust test suite.

Key Responsibilities:

1. Design and implement checkers for competitive programming problems with multiple valid outputs, ensuring accuracy and robustness.
2. Evaluate and validate participant submissions against complex problem statements sourced from platforms like Codeforces.
3. Collaborate with the customer's team to fine-tune problem requirements and clarify ambiguous scenarios.
4. Develop clear, maintainable code in C++ to assess diverse outputs and edge cases efficiently.
5. Document checker logic and communicate intricacies or edge cases in both written and verbal form.
6. Provide feedback to problem setters and reviewers on potential improvements to test cases and checkers.
7. Stay updated with evolving competitive programming standards and incorporate best practices into checker development.

Required Skills and Qualifications:

1. Expertise in competitive programming and coding problem analysis.
2. Advanced proficiency in C++ for implementing robust checker solutions.
3. Strong analytical abilities to interpret complex problem constraints and multiple solution paths.
4. Exceptional written and verbal communication skills; ability to articulate technical details clearly.
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5. Meticulous attention to detail in code validation and output consistency.
6. Experience working independently in a remote, collaborative environment.
7. Commitment to producing high-quality, well-documented code under tight deadlines.

Preferred Qualifications:

1. Prior experience as a problem setter, tester, or checker on major competitive programming platforms.

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.