Freelance Software Developer

1 dia atrás


Rio de Janeiro, Brasil Mindrift Tempo inteiro

Freelance Software Developer (Ruby) - Quality Assurance (AI Trainer) 2 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please provide your resume in English and specify your proficiency level. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About The Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: Code generation and code review Prompt evaluation and complex data annotation Training and evaluation of large language models Benchmarking and agent-based code execution in sandboxed environments Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.) Adapting guidelines for new domains and use cases Following project-specific rubrics and requirements Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects Note: Flexibility and quick adaptation to new requirements are essential. How To Get Started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you'll help shape the future of AI while ensuring technology benefits everyone. Requirements You hold a Bachelor's or Master's Degree in Software Development, Computer Science, or other related fields. You have at least 3 years of professional experience, including hands‑on experience with Ruby testing frameworks (RSpec, Minitest, Capybara) and automation tools Your level of English is advanced (C1) or above Proficient with code review, quality analysis, and identifying/fixing code smells, anti‑patterns, and test gaps in Ruby codebases Experience with test integration in CI/CD environments (GitHub Actions, GitLab CI, Jenkins, or CircleCI) Experience using, integrating, or tutoring others with AI/ML or LLM‑powered testing/coding solutions in Ruby projects Familiarity with containerization technologies (Docker), automated deployment, and scripting within Ruby environments Strong skills in defect documentation, profiling, and debugging Ruby applications Experience generating and maintaining high-quality documentation for tests, bugs, and technical debt Hackathon or competitive coding experience is a plus You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge Benefits Get paid for your expertise, with rates that can go up to $17/hour depending on your skills, experience, and project needs Take part in a part‑time, remote, freelance project that fits around your primary professional or academic commitments Work on advanced AI projects and gain valuable experience that enhances your portfolio Influence how future AI models understand and communicate in your field of expertise Seniority level Mid‑Senior level Employment type Part‑time Job function Other #J-18808-Ljbffr



  • Rio de Janeiro, Brasil Mindrift Tempo inteiro

    Freelance Software Developer (Rust) - Quality Assurance (AI Trainer) 4 days ago – Be among the first 25 applicants. This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English. At Mindrift, innovation meets...

  • Freelance GenAI Developer

    2 semanas atrás


    Rio de Janeiro, Rio de Janeiro, Brasil Mindrift Tempo inteiro R$30.000 - R$60.000 por ano

    This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates.Mindrift is looking for passionate freelance contributors to join the Tendem project ) and help shape the future of hybrid agents — where human expertise and Vibe Coding work together seamlessly. As a Vibe Coding Expert,...

  • Freelance GenAI Developer

    1 semana atrás


    Rio de Janeiro, Rio de Janeiro, Brasil Mindrift Tempo inteiro US$30.000 - US$60.000 por ano

    This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English.Mindrift is looking for passionate freelance contributors to join the Tendem project ) and help shape the future of hybrid agents — where human expertise...

  • Software Developer

    Há 21 horas


    Rio de Janeiro, Brasil Aspen Technology Tempo inteiro

    The driving force behind our success has always been the people of AspenTech. What drives us, is our aspiration, our desire and ambition to keep pushing the envelope, overcoming any hurdle, challenging the status quo to continually find a better way. You will experience these qualities of passion, pride and aspiration in many ways — from a rich set of...

  • Software Developer

    2 semanas atrás


    Rio de Janeiro, Brasil Empregos RJ Tempo inteiro

    Você sabia que agora estamos também no youtube? Conheça o nosso canal "Empregos e Conhecimento", aonde compartilhamos toda semana diversas notícias sobre oportunidades de empregos em todo o estado.  Também compartilhamos conhecimentos relacionados à currículos, ferramentas de trabalho, comportamentos, entre diversas outras coisas, para ampliar a...


  • Rio de Janeiro, Brasil Rina Tempo inteiro

    RINA is currently recruiting for a Junior Backend Software Developer to join its office in Rio de Janeiro within the Digital Technology and Cybersecurity Division.Mission: We are looking for a Junior Software Developer with strong foundations in Python programming and a passion for learning cloud technologies.You will support the team in developing and...

  • Software Developer

    Há 6 dias


    Rio de Janeiro, Rio de Janeiro, Brasil TechnipFMC Tempo inteiro R$80.000 - R$120.000 por ano

    Job Purpose The Software Developer (Web) calls for a talented individual to design and develop software for the User Configurable Open System (UCOS) product.You will have an opportunity to apply your versatile web, cloud, systems,and application software development skills to UCOS's expanding use in myriad industrial controls and automation systems and...

  • Software Developer

    4 semanas atrás


    Rio de Janeiro, Brasil TechnipFMC Tempo inteiro

    Job Purpose The Senior Software Developer calls for an experienced, knowledgeable, and talented individual to design and develop software for the User Configurable Open System (UCOS) product. As a senior software engineer, you will have an opportunity to apply your versatile embedded, systems, and application software development skills to UCOS’s expanding...


  • Rio de Janeiro, Brasil Mindrift Tempo inteiro

    This opportunity is only for candidates currently residing in the specified country.Your location may affect eligibility and rates.Please submit your resume in English and indicate your level of English.At Mindrift , innovation meets opportunity.We believe in using the power of collective intelligence to ethically shape the future of AI.What we do The...

  • Software Developer

    1 semana atrás


    Rio de Janeiro, Rio de Janeiro, Brasil TechnipFMC Tempo inteiro R$60.000 - R$120.000 por ano

    Job Purpose The Software Developer position calls for a talented individual to design and develop software for the User Configurable Open System (UCOS) product.You will have an opportunity to apply your versatile embedded, systems, and application software development skills to UCOS's expanding use in myriad industrial controls and automation systems and...