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Senior Software Engineer, Remote - Contract

Design reproducible reinforcement learning environments for AI model evaluation

You will design reproducible environments, deterministic verification, and golden reference solutions that accurately measure both MCP tool use and software engineering ability. Tasks may involve fixing bugs, implementing features, refactoring code, or optimizing performance while requiring agents to discover and reason over information from real MCP servers. Your work will shape how models learn, reason, and perform through high-quality, real...

Why This Role?

Direct impact on training next-generation AI systems through environment design

Key Responsibilities

  • Design reproducible reinforcement learning environments for AI model evaluation
  • Fix bugs and implement features in codebases using Python, Java, Rust, or TypeScript
  • Refactor code and optimize performance for scalability and maintainability
  • Create deterministic verification and golden reference solutions for MCP tool use
  • Enable agents to discover and reason over information from real MCP servers

Requirements

  • Proficiency in Python, Java, Rust, C++, or TypeScript
  • Deep understanding of algorithms, data structures, and performance tuning
  • Demonstrated experience in debugging complex software issues
  • Proven ability to optimize software for performance and scalability
  • Strong background in feature development and codebase refactoring

Required Skills

pythonjavarusttypescriptalgorithmsperformance optimizationC++

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

Job Title: Senior Software Engineer Job Type: Contract (~15 hrs a week) Location: Remote Required Skills• Python3 • JAVA • Rust • Algorithms • Basics C++ • Typescript • Bug fixing • Feature implementation • Codebase refactoring • Performance optimization In this role, you'll apply your expertise to help train next-generation AI systems. Job Title: Senior Software Engineer Job Type: Contract (~15 hrs a week) Location: Remote Required Skills Python3 JAVA Rust Algorithms Basics C++ Typescript Bug fixing Feature implementation Codebase refactoring Performance optimization 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 software engineering problems using Model Context Protocol (MCP) tools. Tasks may involve fixing bugs, implementing features, refactoring code, or optimizing performance while requiring agents to discover and reason over information from real MCP servers. You will design reproducible environments, deterministic verification, and golden reference solutions that accurately measure both MCP tool use and software engineering ability. Required Skills and Qualifications: Proficiency inC++, Python, JAVA, GoLang, Typescript, or Rust. Deep understanding of algorithms, data structures, and performance tuning. Demonstrated experience in debugging complex software issues and delivering maintainable solutions. Strong background in feature development and codebase refactoring. Proven ability to optimize software for performance and scalability. Exceptional written and verbal communication skills, with a keen attention to detail. Track record of success in collaborative, cross-functional teams, ideally in remote settings. Preferred Qualifications: Previous experience working on large-scale, distributed codebases. Familiarity with modern AI or machine learning systems is a plus, though not required. Background in participating in rigorous code reviews and contributing to the development of software best practices. Process: Apply to the role, filling out the screening questions Complete AI Interview (approx. 30 minutes) Technical Assessment (Tentative) Hiring Manager review 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. Originally posted on Himalayas

Salary Context

Similar Data & Analytics roles on LokerDollar pay around $153.9k/yr (range $32k–272.2k/yr, n=56 active listings).

Hiring at Xperteez Technology

Xperteez Technology has 30 other active roles on LokerDollar and has been hiring here since Oct 8, 2026 — across Data & Analytics, Legal & Compliance, Design, Engineering, Product.

View all Xperteez Technology openings →

Market context

  • VERIFIEDStated pay is 35% above the role median of $153,875/year (n=56 pay-disclosing listings).
  • VERIFIEDXperteez Technology: 31 postings in the last 3 months, 31 all-time on LokerDollar.
  • VERIFIEDCompany first seen Oct 8, 2026.
  • VERIFIEDThis listing first seen Oct 8, 2026.
  • VERIFIEDLast verified live Oct 8, 2026.

Not an application form — This link goes to a listing page, not the employer's application form.

Remote-friendly · fits your timezone
Source
Salary
$80–120/hr
Job Type
full time
Location
Remote · Open worldwide
Seniority
senior
PostedNewNew & verified
Oct 7, 2026

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Frequently asked questions

Is Senior Software Engineer, Remote - Contract at Xperteez Technology a remote job?
Yes. Senior Software Engineer, Remote - Contract at Xperteez Technology is a fully remote role open to candidates worldwide.
What is the salary for Senior Software Engineer, Remote - Contract at Xperteez Technology?
The listed pay range for this role is $80–120/hr.
What type of employment is Senior Software Engineer, 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.

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