SQL Coding Specialist – Freelance AI Trainer

Invisible Technologies

. Challenge advanced language models on software engineering topics and technical scenarios using SQL .

Posted 11/6/2026contractRemote • United StatesMid-LevelSenior💰 $8 - $65 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in SQL coding, algorithms, data structures, and software architecture, with a strong focus on technical writing and clear communication. Capable of assessing code quality, debugging distributed systems, and contributing to high-quality AI training data.

Highest-signal resume keywords

SQL Coding ExpertiseAlgorithms and Data StructuresSoftware ArchitectureTechnical WritingAsynchronous Programming

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SQLAlgorithmsData StructuresSoftware ArchitectureFrontend DevelopmentBackend DevelopmentCloud InfrastructureSystems ProgrammingRESTful API IntegrationDebugging

Soft Skills

Clear CommunicationMetacognitive Communication

Certifications & Qualifications

Bachelor's DegreeMaster's DegreePhD in Computer Science

Industry Keywords

Software EngineeringTechnical ScenariosCode QualityPrompt EngineeringModel Reasoning

Tech Stack

Tools & technologies

CloudDistributed SystemsSQL

About the role

Key responsibilities & impact

Challenge advanced language models on software engineering topics and technical scenarios using SQL
Converse with the model on software engineering tasks
Verify logical accuracy and coding fluency
Assess code quality and clarity
Capture reproducible error traces
Suggest improvements to prompt engineering and evaluation metrics
Document model failure modes to harden model reasoning
Help create high-quality training data for next-generation AI

Requirements

What you’ll need

Coding expertise fluent in SQL
Expertise in algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming using SQL
Ability to work on asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems
Real-world SQL experience, technical writing, or open-source contributions signal fit
Clear, metacognitive communication—“showing your work”—is essential
A bachelor’s, master’s, or PhD in computer science, software engineering, or a closely related technical field is ideal

Benefits

Comp & perks

Pay range of $8–$65 per hour
As a contractor you’ll supply a secure computer and high-speed internet
Company-sponsored benefits such as health insurance and PTO do not apply