Senior C Engineer

Senior C Engineer at SME Careers

As a Senior C Engineer, you will work remotely on an hourly paid basis, focusing on reviewing AI-generated C code, low-level systems designs, and technical explanations. Your role involves generating high-quality reference implementations and step-by-step reasoning for complex engineering problems. You will be responsible for assessing solutions for accuracy, clarity, safety, and adherence to prompts, identifying errors in logic, memory handling, concurrency, or performance, and fact-checking technical information. Additionally, you will 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. SME Careers provides AI training data to many of the world’s largest AI companies and foundation model labs. Your systems-level C expertise will directly contribute to improving 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 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 various 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.

Key skills/competency

• C Programming Language
• Low-level Systems Design
• Memory Management
• Concurrency
• Performance Optimization
• Debugging
• AI Training Data
• Code Review
• Version Control
• Technical Explanations