Senior C Engineer

As a Senior C Engineer, you will work remotely on an hourly paid basis to review AI\-generated C code, low\-level systems designs, and technical explanations, as well as generate high\-quality reference implementations and step\-by\-step reasoning for complex engineering problems. You will assess solutions for accuracy, clarity, safety, and adherence to the prompt; identify errors in logic, memory handling, concurrency, or performance; fact\-check technical information; write high\-quality explanations and model solutions that demonstrate correct methods; and rate and compare multiple AI responses based on correctness and reasoning quality. This fully remote, hourly paid contractor role is with SME Careers, a fast\-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs. Your systems\-level C expertise will directly help improve the world’s premier AI models used by millions of developers worldwide. **Key Responsibilities** * Develop AI Training Content: Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects. * Optimize AI Performance: Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance. * Ensure Model Integrity: Test AI models for potential inaccuracies or biases, validating their reliability across use cases. **Your Profile** * Bachelor’s degree or higher in Computer Science, Electrical/Computer Engineering, or a closely related technical field. * 4\+ years of professional experience developing production software in C for systems, embedded, or performance\-critical applications. * Expert\-level proficiency in C, including deep understanding of pointers, memory management, undefined behavior, and low\-level debugging. * Strong background in systems programming concepts such as concurrency, operating systems, hardware interaction, and performance optimization. * Hands\-on experience with build systems, compilers, linkers, and debugging tools commonly used in C development. * Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English\-language guidelines. * Proven experience conducting detailed code reviews and enforcing coding standards for safety and maintainability in C codebases. * Comfort working with version control, CI/CD workflows, and automated testing for C projects. * Previous experience with AI data training, annotation, or evaluating AI\-generated technical content is a strong plus. * Highly detail\-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in low\-level code.