Skip to main content
Back to Jobs

🌎 Software Engineer (Open Source Contributor), Remote- Contract

  • $50–100/hr
  • Remote-friendly · fits your timezone
  • Posted today · via Himalayas

Build reproducible reinforcement learning environments for AI code testing

Create realistic coding tasks involving feature implementation and bug fixes for AI to solve. Implement deterministic verifiers that accept valid solutions and reject invalid ones. Build reproducible reinforcement learning environments that test an AI model’s ability to fix code, add features, refactor, and optimize performance, including a golden reference solution for each problem.

Why This Role?

Experts who complete the AI interview move through the process significantly faster

Key Responsibilities

  • Create realistic coding tasks for AI involving feature implementation and bug fixes
  • Implement deterministic verifiers that accept valid solutions and reject invalid ones
  • Build reproducible reinforcement learning environments testing AI model performance
  • Develop golden reference solutions for each coding problem
  • Apply expertise in backend languages like Java, Python, Rust, or Go to shape AI training

Requirements

  • Strong backend experience in Java, Node.js, Go, Rust, Typescript, Python, C++ or similar
  • Track record building scalable services and APIs
  • Comfort with debugging, performance work and automated testing
  • Solid code review instincts
  • Clear open source contributions and a GitHub profile showcasing relevant skills

Required Skills

pythonjavarustgithubcode refactoringTypescriptC++

Indonesia Context

Working Hours Overlap:
Flexible — work your own hours
See remote (USD) vs local pay →
View Original Description from HimalayasShow more

Original description from Himalayas

Role Title: Software Engineer (Open Source Contributor) Role Type: Contract Location: Anywhere in the world, remote Required Skills:• Python3 • JAVA • Rust • Algorithms • Basics C++ • Typescript • Codebase refactoring • GitHub • Bug Fixing • Feature Implementation • Performance Optimization • Logical Thinking Opportunity Snapshot:• Pay: $50–100/hour • Time per task: ~15 hours per run • Onboarding: As soon as you’re selected, Talent Ops will send you everything you need to get started • You’ll need: clear open source contributions and a profile to showcase them, such as GitHub (preferably with C++, Python, Java, Go, TypeScript, or Rust). Role Title: Software Engineer (Open Source Contributor) Role Type: Contract Location: Anywhere in the world, remote Required Skills: Python3 JAVA Rust Algorithms Basics C++ Typescript Codebase refactoring GitHub Bug Fixing Feature Implementation Performance Optimization Logical Thinking Opportunity Snapshot: Pay: $50–100/hour Time per task: ~15 hours per run Onboarding: As soon as you’re selected, Talent Ops will send you everything you need to get started You’ll need: clear open source contributions and a profile to showcase them, such as GitHub (preferably with C++, Python, Java, Go, TypeScript, or Rust). If you don’t, you’ll be assessed through a HackerRank assessment instead. Your tasks: Build reproducible Reinforcement Learning Environments that test an AI model’s ability to fix code, add features, refactor, and optimize performance - including a golden reference solution for each problem Bonus: experts who complete the AI interview for this specific role move through the process significantly faster. Job Description: 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. You'll create realistic, interesting and challenging coding tasks for AI to solve involving feature implementation and bug fixes, and implement deterministic verifiers that accept reasonable valid solutions and reject everything else. What we're looking for: Strong backend experience in Java, Node.js, Go, Rust, Typescript, Python, C++ or similar A track record building scalable services and APIs Comfort with debugging, performance work and automated testing Solid code review instincts Preferred Qualifications: Proven experience in backend development, with a track record of delivering high-quality and performant projects. Demonstrated success in identifying and resolving software bugs and system bottlenecks. Experience with codebase refactoring and implementing complex features in large-scale applications. Strong understanding of algorithms, data structures, and foundational computer science concepts. Excellent analytical, problem-solving, and technical communication skills. 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 r

Salary Context

Similar Engineering roles on LokerDollar pay around $160k/yr (range $1k–1000k/yr, n=592 active listings).

Hiring at Xperteez Technology

Xperteez Technology has 69 other active roles on LokerDollar and has been hiring here since Oct 8, 2026 — across Engineering, AI, Data & Analytics.

View all Xperteez Technology openings →

Market context

  • VERIFIEDStated pay is 2% below the role median of $160,000/year (n=592 pay-disclosing listings).
  • VERIFIEDXperteez Technology: 70 postings in the last 3 months, 70 all-time on LokerDollar.
  • VERIFIEDCompany first seen Oct 8, 2026.
  • VERIFIEDThis listing first seen Oct 18, 2026.
  • VERIFIEDLast verified live Oct 18, 2026.

Opens on Himalayas — you may need 1–2 more clicks to reach the real application.

This listing is sourced from Himalayas, with the company profile and full details on this page. The one thing we can't auto-confirm is whether this specific apply link opens cleanly — it usually does, so go ahead and try it. Check back later if it doesn't load.

Remote-friendly · fits your timezone
Source
Salary
$50–100/hr
Job Type
full time
Location
Remote · Open worldwide
Category
Seniority
mid
PostedNewNew & verified
Oct 17, 2026

Share this job

Help a friend find their next remote role.

Hiring? Find talent free

Frequently asked questions

Is 🌎 Software Engineer (Open Source Contributor), Remote- Contract at Xperteez Technology a remote job?
Yes. 🌎 Software Engineer (Open Source Contributor), Remote- Contract at Xperteez Technology is a fully remote role open to candidates worldwide.
What is the salary for 🌎 Software Engineer (Open Source Contributor), Remote- Contract at Xperteez Technology?
The listed pay range for this role is $50–100/hr.
What type of employment is 🌎 Software Engineer (Open Source Contributor), Remote- Contract at Xperteez Technology?
This is a full time position.
How do I apply?
Click the "Apply" button on this page to go to the official application at Xperteez Technology.

Explore related

Market data & reports

Salary & skill-demand research built from our own listings data.

From the blog

This apply link is not verified yet.