Software Engineer - Backend

Responsibilities

Design realistic software engineering tasks and reproducible testing environments to challenge advanced AI models. Develop deterministic verifiers and reference solutions to ensure high-quality technical evaluation of AI performance.

Requirements

Requires significant hands-on backend software engineering experience in Python, Java, Rust, Go, C++, or TypeScript. Candidates must possess strong analytical skills and the ability to work independently in a remote, asynchronous environment.

Skills

• Python
• Java
• Rust
• Go
• C++
• TypeScript
• Backend Development
• Algorithms
• Data Structures
• Debugging
• Code Refactoring
• Performance Optimization
• Software Testing
• Technical Documentation
• Problem Solving
• Reinforcement Learning

About this role

Company Description
Our client is an innovative technology organization developing advanced artificial intelligence systems through real-world software engineering challenges.
The organization works with experienced software engineers to improve the coding, reasoning, debugging, and problem-solving capabilities of next-generation AI models.
For this project, our client is seeking skilled Backend Software Engineers with expertise in Python, Java, Rust, Go, C++, or TypeScript to develop realistic coding challenges, reproducible testing environments, and reliable evaluation frameworks.
CONFISA Group is supporting the recruitment of qualified professionals for this fully remote, project-based opportunity.
Job Description
Our client is seeking experienced Backend Software Engineers to contribute to an innovative artificial intelligence project focused on improving the coding, reasoning, debugging, and problem-solving capabilities of next-generation AI models.
In this fully remote, project-based contractor role, you will develop Reinforcement Learning Environments that challenge advanced AI systems to solve realistic software engineering problems.
You will design complex coding tasks based on real-world repositories, create reproducible development environments, implement reliable verification mechanisms, and provide reference solutions.
Previous experience in artificial intelligence is not required. Strong practical software engineering expertise is the primary qualification.
Key Responsibilities
Design realistic and technically challenging software engineering tasks based on existing code repositories.
Develop complex programming challenges involving subtle bugs, non-trivial feature implementations, codebase refactoring, and performance optimization.
Create reproducible development and testing environments for each assigned task.
Design and implement deterministic verifiers that recognize valid solutions while rejecting incorrect, incomplete, or hard-coded implementations.
Develop reference solutions demonstrating how each engineering challenge can be successfully resolved.
Apply advanced knowledge of algorithms, data structures, and software engineering principles.
Ensure coding challenges require genuine engineering problem-solving rather than simple lookups or boilerplate implementations.
Identify and report ambiguous, incomplete, or unverifiable tasks.
Produce clear technical documentation describing task requirements, expected outcomes, and verification criteria.
Work independently and asynchronously while maintaining high standards of technical quality.
Position Details
Job Title: Software Engineer – Backend
Work Arrangement: Fully Remote
Contract Type: Independent Contractor
Time Commitment: Approximately 15 hours per week
Compensation: Advertised range of USD $50–$100; payment is based on approved tasks rather than guaranteed hourly billing.
Engagement: Project-based, with compensation tied to successfully completed and approved assignments.
Estimated Task Duration: Approximately 5 hours for task creation and 1.5 hours for task review. Actual time may vary.
Qualifications
Required Skills and Technical Expertise
Significant hands-on software engineering experience in at least one of the following programming languages:
Python 3
Java
Rust
Go
C++
TypeScript
Strong understanding of algorithms, data structures, and fundamental software engineering principles.
Proven ability to debug complex software systems, identify root causes, and resolve challenging technical issues.
Experience implementing non-trivial software features and improving existing applications.
Strong knowledge of codebase refactoring, software maintenance, and performance optimization.
Ability to work with existing code repositories and understand complex codebases.
Experience developing reproducible development and testing environments.
Ability to design reliable, deterministic tests that validate correct implementations and identify incorrect or incomplete solutions.
Strong analytical and problem-solving skills.
Excellent technical documentation and written communication abilities.
Ability to work independently in a remote, asynchronous, project-based environment.
Preferred Qualifications
Experience working with large-scale software systems or complex backend architectures.
Demonstrated success modernizing legacy applications and refactoring large codebases.
Track record of delivering high-impact software features from initial design through implementation.
Experience designing complex coding challenges, test cases, or automated verification frameworks.
Familiarity with software performance profiling, debugging tools, and optimization techniques.
Interest in artificial intelligence, reinforcement learning, and advanced AI coding systems.
Ability to explain technical decisions, document solutions, and communicate complex engineering concepts clearly.
Additional Requirements
Availability to dedicate approximately 15 hours per week to project assignments.
Ability to produce high-quality technical deliverables that meet defined project specifications.
Willingness to complete technical screening and an AI-based interview as part of the selection process.
Availability to begin assignments promptly following successful onboarding.
Important: Previous professional experience in artificial intelligence or machine learning is not required. Candidates will be evaluated primarily on their practical software engineering expertise and problem-solving capabilities.
Additional Information
Work Arrangement: 100% Remote
Contract Type: Independent Contractor
Weekly Commitment: Approximately 15 hours
Compensation: USD $50–$100 advertised range, with payment based on approved tasks
Engagement: Project-based, flexible and asynchronous
Compensation Structure
This opportunity follows an output-based compensation model. Professionals are compensated for successfully completed tasks that meet the project's quality standards and specifications.
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About ELITEBRAIN

Technology, Information and Internet · 2-10 employees · headquartered in Prilly, Vaud · founded 2024