Sr Java Developer - Remote - Remote

Senior Software Engineer Job Type: Contractor (~15 hrs/week) Location: Remote Schedule: Flexible Required Skills Python 3, Java, Rust, TypeScript, C++ Algorithms & Data Structures Bug Fixing & Feature Implementation Codebase Refactoring Performance Optimization Automated Testing Backend Development Job Summary Work on challenging coding tasks designed to improve next-generation AI systems. You'll create realistic coding problems, implement features and bug fixes, and build deterministic verifiers to evaluate solutions. What We're Looking For Strong backend development experience Experience building scalable services and APIs Strong debugging and performance optimization skills Excellent code review and problem-solving abilities Cybersecurity/SecOps experience is a plus Responsibilities Develop and debug complex software Implement new features and improvements Refactor and optimize existing codebases Design coding tasks and reliable verification systems Apply strong software engineering and algorithmic principles