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🌍 Senior Software Engineer RL, Remote- Contract

Xperteez Technology

Fully Remote
Remote - Worldwide
Worldwide
US hours

Hirezar Summary for South African Applicants

This fully remote contract position at Xperteez Technology is open worldwide, so South Africans can apply. The estimated monthly salary is R296,000 – R444,000 ZAR. This role is suited for senior-level professionals. As a remote position, you can work from anywhere in South Africa — whether you're based in Johannesburg, Cape Town, Durban, or a smaller town.

Job Description

Role Title: Senior Software Engineer

Role Type: Contract

Location: Remote

Required Skills:
* Python3

Python3
* JAVA

JAVA
* Rust

Rust
* Algorithms

Algorithms
* Basics C++

Basics C++
* Typescript

Typescript
* Bug fixing

Bug fixing
* Feature implementation

Feature implementation
* Codebase refactoring

Codebase refactoring
* Performance optimization

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 and AI model's ability to solve complex software engineering problems related to fixing code, creating features, refactoring code and optimizing performance. You will be tasked with creating a reproducible environment and golden reference solution for the problem.

Scope of Work:
* Contribute expert-level code samples, debugging strategies, and development insights in Python3, Java, Rust, Go, C++, or TypeScript.
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.
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.
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.
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.
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.
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.
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.
Deep understanding of algorithms, data structures, and software engineering principles.
* Proven ability to debug complex systems, resolve bugs, and deliver effective optimizations.
Proven ability to debug complex systems, resolve bugs, and deliver effective optimizations.
* Experience with large codebase refactoring and legacy system modernization.
Experience with large codebase refactoring and legacy system modernization.
* Track record of delivering high-impact features from conception through delivery within cross-functional projects.
Track record of delivering high-impact features from conception through delivery within cross-functional projects.
* Strong documentation and communication skills to articulate technical concepts clearly.
Strong documentation and communication skills to articulate technical concepts clearly.
* Interest in or curiosity about AI and its technical challenges (previous AI experience not required).
Interest in or curiosity about AI and its technical challenges (previous AI experience not required).

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 onHimalayas

Tips for South African Applicants

Timezone Advantage

South Africa (SAST, UTC+2) overlaps well with European business hours and has a few hours of overlap with US East Coast. Mention your timezone flexibility in your application.

Salary in Context

At R296,000/month, this role pays well above the average South African remote salary. The USD equivalent ($100/mo) benefits from the favourable exchange rate.

Application Tips

Tailor your CV to international standards — use a clean format, highlight remote work experience, and include your English proficiency. Many SA applicants succeed by emphasising their strong work ethic and cultural adaptability.

Load Shedding Preparedness

If you're applying for a remote role, having a backup power solution (UPS, inverter, or generator) and mobile data as a backup internet connection shows employers you're prepared for South Africa's infrastructure challenges.

About Xperteez Technology

Xperteez Technology is a company in the Operations industry that hires remote workers from South Africa. They currently have 23 open positions on Hirezar. View all Xperteez Technology jobs →