AI Data Moderation & QA (Freelancing)
AI Data Moderation & QA (Freelancing)
Brasil, Remoto
Salário: Até $30 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Bachelor’s degree or higher in Translation, Linguistics, Localization, Communications, or a related field.
Native or near-native Portuguese proficiency and strong command of the locale conventions for Brazil.
Minimum C1 English proficiency (reading/writing) for interpreting prompts, sources, and evaluation guidelines.
5+ years of professional localization/translation experience (multilingual localization experience strongly preferred).
Demonstrated ability to apply MQM/LQA concepts (severity, category, and root-cause thinking) to produce consistent quality decisions.
Proficiency with CAT tools and QA workflows (translation memory, termbases, automated checks) and comfort working with structured guidelines.
Excellent editorial judgment (register, tone, inclusivity, and cultural nuance) with extreme attention to detail.
Ability to rigorously fact-check localized content (units, references, names, dates) using reliable sources and consistent reasoning.
Comfort working as an hourly contractor: dependable throughput, clear documentation, and responsiveness across time zones.
Previous experience with AI data training / annotation / evaluation is preferred.
Location requirement: Only candidates based in Brazil will be considered for this role
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Brasil, Remoto
Salário: Até $25 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Bachelor’s degree or higher in a relevant field (e.g., Communications, Linguistics, Psychology, Law/Policy, Security Studies) or equivalent professional experience.
Near-native or native Brazilian Portuguese proficiency (reading/writing) for high-precision safety labeling and cultural-linguistic nuance.
Minimum C1 English proficiency (reading/writing) for policy interpretation, prompt understanding, and consistent documentation.
5+ years in Trust & Safety, content moderation, policy operations, risk, compliance, investigations, or related safety functions (senior level).
LLM red-teaming / adversarial testing experience is required (documented examples of edge-case discovery and mitigation recommendations).
Localization/translation experience is highly preferred; able to preserve meaning, severity, and intent across languages.
Emotional resilience: comfortable annotating unsafe, explicit, and/or toxic content, including content of a sexual, violent, or psychologically disturbing nature.
Highly detail-oriented with strong judgment, consistency, and ability to follow evolving written guidelines.
Strong analytical writing: concise rationales, clear decision paths, and reproducible reasoning for disagreements.
Secure and confidential handling of sensitive content; reliable remote work practices and time management.
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Brasil, Remoto
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Experienced DevOps engineers with 4+ years of experience
Strong experience with Docker & Dockerfiles.
Proficiency in Python or Bash for validation scripting.
Knowledge of data formats, schemas, and validation tools.
Familiarity with CI/CD systems and container registries.
Detalhes do Contrato:
Commitments Required: At least 4 hours per day and minimum 20 hours per week with overlap of 4 hours with PST. (We have 3 options of time commitment: 20 hrs/week, 30 hrs/week or 40 hrs/week)
Employment type : Contractor assignment (no medical/paid leave)
Duration of contract : 2-4 weeks;
Processo Seletivo:
Evaluation Process (approximately 75 mins) :
Interviews (30-60 min technical discussion in QODE)
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Engenharia & Arquitetura de LLMs (Freelancing)
Salário: Até $32 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Completed a Bachelor's degree or higher in Computer Science from a selective institution.
Software engineering experience contributing to a live production codebase ideally for a technology company
Proficiency in working with one or more of the following programming languages: Python, Java, Rust, Swift, JavaScript, or C++.
Ability to articulate complex concepts fluently in written and spoken English.
Excellent attention to detail, including grammar, punctuation, and style guidelines.
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Salário: Até $35 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Expert-level proficiency in Bash and/or PowerShell scripting.
2-3+ years of hands-on experience in at least one of Bash or PowerShell.
Strong experience writing, debugging, and maintaining shell or object-based automation scripts.
Ability to evaluate scripts for correctness, readability, safety, performance, and portability across environments.
Professional experience in software engineering, DevOps, IT automation, or infrastructure-focused roles.
Minimum Bachelor’s degree in Computer Science or a closely related technical field.
Significant experience using large language models (LLMs) while coding, troubleshooting, and reviewing scripts.
Excellent English writing skills with the ability to document and explain complex automation clearly.
Highly preferred: For Bash, strong comfort with awk, sed, and grep; for PowerShell, experience with PowerShell Core, DSC, and Azure PowerShell modules.
Preferred: Merged PRs in CLI, DevOps, or infrastructure-related open-source projects; familiarity with CI pipelines, automation workflows, or cloud scripting; previous AI data training or model evaluation work strongly preferred and Minimum C1 English proficiency.
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Salário: Até $40 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
1-2+ years of professional Go programming experience, ideally focused on backend services, APIs, or systems work.
Strong understanding of Go idioms, including clear error handling, composition over inheritance, and simple, readable interfaces.
Hands-on software engineering experience building and maintaining backend-style Go applications in production environments.
Ability to evaluate correctness and readability in backend-oriented Go code, including concurrency patterns, error propagation, and API design.
Significant experience using LLMs or AI coding assistants while programming, combined with a disciplined approach to validating their output.
Excellent English writing skills, capable of producing precise, structured, and pedagogical technical explanations.
Minimum Bachelor’s degree in Computer Science or a closely related technical field.
Previous experience with AI data training, code review at scale, or evaluation of AI-generated technical content is strongly preferred; Minimum C1 English proficiency and an extremely detail-oriented working style are required.
Highly preferred: hands-on experience with Go frameworks and libraries such as Gin, gRPC, or Echo in real projects.
Preferred: merged PRs in Go open-source projects, competitive programming experience, cloud-native development exposure, and familiarity with Go performance profiling tools and techniques.
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Salário: Até $45 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
2+ years of hands-on Kotlin development experience.
Strong understanding of Kotlin null safety, coroutines, and functional idioms.
Professional software engineering experience using Kotlin for Android or backend services.
Minimum Bachelor’s degree in Computer Science or a closely related field.
Ability to critically evaluate idiomatic Kotlin style, design decisions, and architecture trade-offs.
Significant experience using large language models (LLMs) to assist with coding, debugging, and code review.
Excellent English writing skills with the ability to articulate complex technical concepts clearly.
Highly preferred: Experience with Ktor, Android Jetpack, and advanced coroutine usage in production systems.
Preferred: Merged pull requests in Kotlin open-source projects, competitive programming experience, or similar demonstration of strong problem-solving skills.
Experience reviewing app logic or mobile/backend architecture, with previous AI data training or model evaluation work strongly preferred and Minimum C1 English proficiency.
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Salário: Até $45 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
2+ years of hands-on experience using R for data analysis, statistics, or data science work.
Strong proficiency in R programming, including data wrangling, functional programming patterns, and writing reusable functions or packages.
Solid grounding in applied statistics, including regression, inference, and model validation, with practical experience implementing these methods in R.
Experience building end-to-end analyses in R that include data cleaning, exploratory analysis, modeling, and visualization.
Familiarity with common R ecosystems such as tidyverse, data.table, and ggplot2, and the ability to choose appropriate tools for a given task.
Professional experience in a data-focused role such as data scientist, statistician, quantitative analyst, or similar.
Minimum Bachelor’s degree in Statistics, Mathematics, Computer Science, or a closely related quantitative field.
Significant experience using large language models (LLMs) to assist with coding, analysis design, and code review in R.
Excellent English writing skills with the ability to document analyses and explain complex statistical ideas clearly to non-experts.
Previous experience with AI data training or model evaluation is strongly preferred, and Minimum C1 English proficiency is required.
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Salário: Até $45 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
2+ years of professional Ruby programming experience in production environments.
Strong understanding of Ruby on Rails, MVC architecture, and idiomatic Ruby patterns for structuring application code.
Hands-on software engineering experience building and maintaining Ruby or Rails applications, with exposure to real-world production constraints.
Ability to evaluate readability, maintainability, and logical correctness in Ruby and Rails code, including model, controller, and service-layer design.
Significant experience using LLMs or AI coding assistants while programming, combined with a disciplined approach to validating and reviewing their output.
Excellent English writing skills, capable of producing clear, structured, and pedagogical technical explanations and code reviews.
Minimum Bachelor’s degree in Computer Science or a closely related technical field.
Previous experience with AI data training, large-scale code review, or evaluation of AI-generated technical content is strongly preferred; Minimum C1 English proficiency and an extremely detail-oriented working style are required.
Highly preferred: experience with frameworks and tools such as Ruby on Rails, Sinatra, and RSpec in real projects.
Preferred: merged PRs in Ruby open-source projects, experience with metaprogramming or test-heavy systems, and competitive programming exposure.
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Salário: Até $50 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
2+ years of professional Rust development experience in backend, CLI, or systems-focused projects.
Strong understanding of Rust’s ownership, borrowing, and lifetime model, with the ability to reason clearly about aliasing and data races.
Solid software engineering experience in at least one of backend services, command-line tools, or systems programming using Rust.
Ability to evaluate safe, idiomatic Rust code, including appropriate use of traits, generics, pattern matching, and error handling.
Significant experience using LLMs or AI coding assistants while programming, combined with a disciplined approach to validating their output.
Excellent English writing skills, capable of producing precise, structured, and pedagogical technical explanations.
Minimum Bachelor’s degree in Computer Science or a closely related technical field.
Previous experience with AI data training, code review at scale, or evaluation of AI-generated technical content is strongly preferred; Minimum C1 English proficiency and an extremely detail-oriented working style are required.
Highly preferred: experience with Tokio, Actix, Serde, and async Rust patterns in production or advanced side projects.
Preferred: competitive programming experience, contributions to Rust open-source ecosystems, and demonstrated ability to reason about performance, concurrency, and correctness in Rust code.
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Salário: Até $50 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
2+ years of hands-on Swift/iOS development experience.
Strong understanding of core Swift fundamentals, memory management, and ARC.
Professional iOS engineering experience shipping or maintaining production mobile applications.
Minimum Bachelor’s degree in Computer Science or a closely related field.
Ability to evaluate code for correctness, maintainability, performance, and UI logic quality.
Significant experience using large language models (LLMs) to assist with coding, debugging, and code review.
Excellent English writing skills with the ability to articulate complex technical concepts clearly.
Highly preferred: Experience with SwiftUI, UIKit, and Combine in modern iOS architectures such as MVVM.
Preferred: Merged pull requests in Swift/iOS open-source projects, competitive programming exposure, or similar evidence of strong algorithmic problem-solving skills.
Experience reviewing app logic or mobile architecture, with previous AI data training or model evaluation work strongly preferred, and Minimum C1 English proficiency.
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Salário: Até $45 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Bachelor’s degree or higher in Computer Science, Electrical/Computer Engineering, or a closely related technical field.
7+ 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.
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Salário: Até $45 USD por hora
Localização: Brasil, Remoto & Assíncrono. (Requer inglês fluente)
Bachelor’s degree or higher in Computer Science, Electrical/Computer Engineering, or a closely related technical field.
7+ years of professional experience developing production software in C++ for systems, performance-critical, or large-scale applications.
Expert-level proficiency in modern C++ (C++11 and later), including templates, move semantics, smart pointers, and the STL.
Strong background in systems programming concepts such as concurrency, operating systems, low-level performance optimization, and memory management.
Hands-on experience with C++ build systems, compilers, linkers, debuggers, and profiling or analysis tools.
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 C++ code reviews and enforcing coding standards for safety, performance, and maintainability.
Comfort working with version control, CI/CD workflows, and automated testing frameworks in modern 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 complex C++ code.
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Portais de Vagas (Freelancing)
Local: Remoto
Cliente: Micro1
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Local: Remoto
Cliente: Mercor
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Portais de Vagas (Full Time)
Local: Remoto
Cliente: Baires Dev
No link você encontrará o painel de vagas completo do cliente.
O painel de oportunidades abrange diversos campos profissionais, senioridades e stacks de ferramentas.
P.S.: Se você participou de um processo seletivo com eles recentemente, nossa indicação não será válida.
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