Remote | Senior Software Engineer — $50–$100/hour

Job Description

**We are sharing a specialised consulting opportunity for experienced Senior Software Engineers with strong expertise in Python3, Java, Rust, Go, C , TypeScript, algorithms, debugging, feature development, codebase refactoring, and performance optimisation to contribute to an advanced AI training and software-engineering evaluation project.**

Selected professionals will create reinforcement-learning environments that test advanced AI systems on realistic software-engineering problems involving bug fixing, feature implementation, refactoring, and performance optimisation. Each environment will require a reproducible technical setup together with a high-quality golden reference solution demonstrating the expected engineering approach. No prior experience in AI is required.

**Key Responsibilities**

**Reinforcement Learning Environment Development**

* Create realistic software-engineering environments for AI evaluation
* Design tasks involving debugging, feature development, refactoring, and optimisation
* Build reproducible environments that allow technical solutions to be evaluated consistently
* Define clear problem statements, constraints, and expected outcomes
* Develop golden reference solutions demonstrating correct engineering approaches

**Software Development \& Feature Implementation**

* Contribute expert-level code across Python3, Java, Rust, Go, C , or TypeScript
* Implement robust new functionality within existing codebases
* Apply sound software-engineering principles to real-world development scenarios
* Ensure new features are maintainable, scalable, and appropriately tested
* Evaluate trade-offs across different implementation approaches

**Debugging \& Defect Resolution**

* Analyse complex software defects across varied codebases
* Identify root causes rather than applying superficial fixes
* Develop effective debugging strategies for difficult technical problems
* Resolve correctness, reliability, and integration issues
* Document reasoning behind technical diagnoses and fixes

**Codebase Refactoring \& Modernisation**

* Refactor legacy or difficult-to-maintain code
* Improve structure, readability, modularity, and long-term maintainability
* Preserve required behaviour while improving implementation quality
* Identify unnecessary complexity and architectural weaknesses
* Apply modern software-engineering practices to existing systems

**Performance Optimisation**

* Identify performance bottlenecks across software systems
* Analyse algorithmic and implementation-level inefficiencies
* Improve runtime performance and resource usage where appropriate
* Validate that optimisations preserve correctness
* Explain technical trade-offs and performance impact clearly

**Code Review \& Technical Validation**

* Review peer-contributed code and technical submissions
* Evaluate solutions for correctness, clarity, efficiency, and maintainability
* Identify hidden defects, unsupported assumptions, or incomplete reasoning
* Provide constructive technical feedback
* Validate that submissions satisfy task and environment requirements

**Technical Documentation \& Reasoning**

* Document implementation decisions and solution approaches clearly
* Explain debugging, refactoring, and optimisation strategies
* Record technical assumptions and relevant trade-offs
* Produce documentation that supports reproducibility and evaluation
* Translate complex engineering reasoning into precise written explanations

**Ideal Profile**

* Significant professional software-engineering experience
* Strong hands-on expertise in at least one of Python3, Java, Rust, Go, C , or TypeScript
* Deep understanding of algorithms and data structures
* Strong command of software-engineering fundamentals
* Proven ability to debug complex systems and resolve difficult defects
* Experience implementing substantial product or platform features
* Strong background in codebase refactoring and legacy-system modernisation
* Experience identifying and resolving performance bottlenecks
* Ability to reason across large and unfamiliar codebases
* Strong technical documentation and communication skills
* Experience taking high-impact features from concept through delivery is highly valuable
* Comfortable reviewing and validating other engineers' work
* Interest in AI and advanced technical evaluation is beneficial
* No prior AI-training experience is required

**Engagement Details**

* Independent contractor engagement
* Fully remote
* **Expected commitment: approximately 15 hours per week**
* **Displayed compensation range: $50--$100/hour**
* **Actual compensation structure is output-based, with payment made per task that meets project specifications**
* Task completion time may vary depending on individual experience and workflow
* Minimum weekly submission requirements apply; the source does not specify the exact number of required tasks
* Work will involve reinforcement-learning environment creation, software development, debugging, feature implementation, refactoring, performance optimisation, and technical validation
* Each task may require a reproducible environment and golden reference solution
* Roles are typically filled within approximately 48 hours
* Selected experts are expected to begin initial tasks within approximately 24--48 hours after onboarding
* Project scope, workload, technical domains, and evaluation standards may evolve depending on project requirements
* Work must be completed without using confidential or proprietary information belonging to any employer, client, institution, or other third party

**About the Platform**

This opportunity is available through 24-MAG LLC. We connect experienced professionals with remote consulting opportunities across technical, evaluation, and project-based workstreams.

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