Coding Specialist – Freelance AI Trainer

Invisible Technologies

. Converse with language models on software engineering tasks and technical scenarios in Portuguese (Brazil) .

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

Core Competencies

Role fit

Core Competencies

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

Demonstrates fluency in Portuguese (Brazil) while engaging with language models on software engineering tasks. Possesses expertise in algorithms, data structures, and software architecture, along with experience in both frontend and backend development.

Highest-signal resume keywords

Fluent In Portuguese (Brazil)Expertise In Algorithms And Data StructuresExperience With Frontend And Backend DevelopmentKnowledge Of Cloud InfrastructureSecure Coding Practices

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

AlgorithmsData StructuresSoftware ArchitectureFrontend DevelopmentBackend DevelopmentCloud InfrastructureAsynchronous ProgrammingRESTful API IntegrationMemory ManagementObject-Oriented Design

Soft Skills

Clear CommunicationMetacognitive Communication

Tools & Technologies

Distributed SystemsTechnical Writing

Certifications & Qualifications

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

Industry Keywords

Secure Coding PracticesDebuggingPrompt EngineeringEvaluation MetricsModel Reasoning

Tech Stack

Tools & technologies

CloudDistributed Systems

About the role

Key responsibilities & impact

Converse with language models on software engineering tasks and technical scenarios in Portuguese (Brazil)
Verify logical accuracy and coding fluency
Assess naturalness and correctness of Portuguese language usage
Capture reproducible error traces
Suggest improvements to prompt engineering and evaluation metrics
Challenge advanced language models on software engineering topics and document failure modes to improve model reasoning

Requirements

What you’ll need

Fluent in Portuguese (Brazil)
Expertise in algorithms and data structures
Expertise in software architecture
Experience with frontend and backend development
Knowledge of cloud infrastructure and systems programming
Knowledge of asynchronous programming
RESTful API integration experience
Knowledge of memory management
Object-oriented design knowledge
Secure coding practices
Experience debugging distributed systems
Ability to verify logical accuracy and coding fluency
Technical writing in Portuguese or open-source contributions signal fit
Clear, metacognitive communication 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

No company-sponsored health insurance or PTO; these benefits do not apply to contractors
Contractor supplies a secure computer
Contractor supplies high-speed internet