Get your free practice interview for this role
micro1 screens applicants online, often with an AI interview. micro1 offers a free, 18-minute AI practice interview with feedback, and we picked the one closest to this role: Back-End Developer. It covers:
Here’s your practice interview
Allow your microphone when it asks, find a quiet spot, and give yourself about 20 minutes. We’ve also emailed you the link and the free ebook.
Step 2: when you feel ready, apply.
The practice interview is free and run by micro1. Land Remote Jobs is an independent job board, not part of micro1, Mercor or Turing. Practising helps you prepare; it can’t guarantee the result of your real interview. Want more tips? Read our free micro1 interview guide.
Apply for this role
You apply on micro1's own site. It’s free, and you can apply even if you skip the practice.
Who this role suits
Working engineers who want flexible, project-based remote work that uses their coding and review skills. A strong portfolio or GitHub helps.
Full job description
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:
- Design and implement checkers for competitive programming problems with multiple valid outputs, ensuring accuracy and robustness.
- Evaluate and validate participant submissions against complex problem statements sourced from platforms like Codeforces.
- Collaborate with the customer's team to fine-tune problem requirements and clarify ambiguous scenarios.
- Develop clear, maintainable code in C++ to assess diverse outputs and edge cases efficiently.
- Document checker logic and communicate intricacies or edge cases in both written and verbal form.
- Provide feedback to problem setters and reviewers on potential improvements to test cases and checkers.
- Stay updated with evolving competitive programming standards and incorporate best practices into checker development.
Required Skills and Qualifications:
- Expertise in competitive programming and coding problem analysis.
- Advanced proficiency in C++ for implementing robust checker solutions.
- Strong analytical abilities to interpret complex problem constraints and multiple solution paths.
- Exceptional written and verbal communication skills; ability to articulate technical details clearly.
- Meticulous attention to detail in code validation and output consistency.
- Experience working independently in a remote, collaborative environment.
- Commitment to producing high-quality, well-documented code under tight deadlines.
Preferred Qualifications:
- 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.
Last checked open on Oct 28, 2026. Job description provided by micro1.
Something not working? Tell us
If the practice interview or the apply link doesn’t open, or the job looks closed, let us know and we’ll fix it.
Thanks, we got it. We’ll check this job’s links and reply by email if you left one.