Coding Specialist – Freelance AI Trainer

Invisible Technologies

. Challenge advanced language models on asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems .

Posted 11/1/2026contractRemote • SpainMid-LevelSenior💰 $8 - $65 per hourWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in algorithms, data structures, and software architecture while effectively communicating in Spanish. Proficient in asynchronous programming, RESTful API integration, and debugging distributed systems to enhance AI model training.

Highest-signal resume keywords

Fluent In Spanish (Spain)Expertise In AlgorithmsAsynchronous ProgrammingRESTful API IntegrationSecure Coding Practices

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

AlgorithmsData StructuresSoftware ArchitectureFrontend DevelopmentBackend DevelopmentCloud InfrastructureSystems ProgrammingAsynchronous ProgrammingMemory ManagementObject-Oriented Design

Soft Skills

Clear CommunicationMetacognitive Communication

Tools & Technologies

Distributed SystemsDebugging Tools

Certifications & Qualifications

Bachelor’s Degree In Computer ScienceMaster’s Degree In Software EngineeringPhD In Related Technical Field

Industry Keywords

Secure Coding PracticesTechnical Writing In SpanishOpen-Source ContributionsPrompt EngineeringEvaluation Metrics

Tech Stack

Tools & technologies

CloudDistributed Systems

About the role

Key responsibilities & impact

Challenge advanced language models on asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems
Converse with models on software engineering tasks and technical scenarios in Spanish (Spain)
Verify logical accuracy and coding fluency
Assess naturalness and correctness of Spanish language usage
Capture reproducible error traces and document failure modes
Suggest improvements to prompt engineering and evaluation metrics
Help produce high-quality training data for AI models

Requirements

What you’ll need

Fluent in Spanish (Spain)
Expertise in algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming
Knowledge of asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems
Bachelor’s, master’s, or PhD in computer science, software engineering, or a closely related technical field is described as ideal
Real-world coding experience, technical writing in Spanish, or open-source contributions signal fit
Clear, metacognitive communication and ability to “show your work”
Contractor must supply a secure computer and high-speed internet

Benefits

Comp & perks

No company-sponsored benefits such as health insurance and PTO apply
Contractor supplies a secure computer and high-speed internet