Competitive Coder

Remotejobsone; Johannesburg; On-site; ZAR 1,033,000 - 1,492,000; Full time

Benefits offered by this job

Remote work

Job summary

RemoteJobsOne in South Africa seeks an expert to train next‑gen AI systems by creating Reinforcement Learning Environments for competitive programming. You will design checkers, build reference solutions, and craft robust test suites to assess model performance on real‑world problems.

This fully remote contractor role (15+ hours/week) is open to candidates based in South Africa and pays $45–$65 per hour. Start as soon as onboarding is complete.

Qualifications

• Expertise in competitive programming and coding problem analysis.
• Strong C++ skills for implementing robust checker solutions.
• Ability to interpret complex constraints and multiple solution paths.

Responsibilities

• Design and implement checkers for problems with multiple valid outputs.
• Evaluate and validate submissions against complex problem statements.
• Collaborate with customer team to refine requirements and edge cases.
• Develop clear, maintainable C++ code to assess outputs and edge cases.
• Document checker logic and communicate intricacies clearly.
• Provide feedback to problem setters and reviewers on test cases.
• Stay updated with competitive programming standards and best practices.

Skills

Competitive programming

C++ proficiency

Problem analysis

Tools

C++

Job description

IMPORTANT: after you apply, please check your email. We send you a link to complete your application — it is not considered until that last step is done. If you do not see it, check your spam folder.

This is a fully remote position, open to candidates based in South Africa.

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.
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.