Join Toloka AI as a Freelance Agent Evaluation Engineer and contribute to enhancing AI systems through effective evaluation methodologies. In this remote role, you will leverage your expertise to assess and improve AI models, ensuring they meet high standards of quality and performance.

gramian seeks an AI Evaluation Engineer - Mathematics & Algorithms to work remotely from Brazil. This role centers on assessing and strengthening the performance of AI systems, emphasizing mathematical precision and careful algorithmic evaluation. Key responsibilities Create and improve evaluation metrics tailored to AI models Design and implement methods for testing and measuring AI effectiveness Work closely with team members to analyze results and recommend improvements What we look for Solid background in mathematics and algorithm design Strong attention to detail and a methodical approach to problem-solving Interest in advancing artificial intelligence through careful evaluation Ability to collaborate effectively with a diverse team Location This is a remote position based in Brazil.

Join the innovative team at gramian as an AI Evaluation Engineer specializing in Knowledge & Research. In this role, you will play a crucial part in evaluating and enhancing AI systems to ensure they meet the highest standards. Your expertise will contribute to groundbreaking projects that push the boundaries of AI technology.

Are you a coding aficionado fluent in Portuguese (Brazil) with a passion for shaping the future of artificial intelligence? As large-scale language models evolve from sophisticated chatbots into powerful tools for scientific exploration, we recognize that high-quality training data is pivotal. Your expertise will play a crucial role in empowering the next generation of AI, enabling world-class education, advancing groundbreaking research, and enhancing software development processes globally. We are seeking coding specialists who are deeply knowledgeable in algorithms, data structures, software architecture, frontend and backend development, cloud infrastructure, and systems programming—all while communicating fluently in Portuguese (Brazil). In this role, you will engage with advanced language models on topics such as asynchronous programming, RESTful API integration, memory management, object-oriented design, secure coding practices, and debugging distributed systems. Your task will include meticulously documenting every failure mode to enhance model reasoning. On a typical day, you will interact with the model about software engineering tasks and technical scenarios in Portuguese (Brazil). You will verify logical accuracy and coding fluency, evaluate the naturalness and correctness of Portuguese language usage, capture reproducible error traces, and recommend improvements to our prompt engineering and evaluation metrics. A bachelor's degree, master's degree, or PhD in computer science, software engineering, or a related technical field is preferred. Real-world coding experience, technical writing in Portuguese, or contributions to open-source projects are indicators of a suitable candidate. Clear, metacognitive communication—demonstrating your thought process—is essential. Are you ready to convert your coding and Portuguese language expertise into the foundation for tomorrow's AI? Apply now and start teaching the model that will educate the world.

Toloka AI seeks a Strategy Consultant with expertise in AI training and evaluation. This is a remote role based in Belo Horizonte, State of Minas Gerais, Brazil. The focus is on advising organizations as they refine their AI strategies and enhance training programs. Key responsibilities Guide companies in shaping and improving their AI training and evaluation processes Offer insights to support informed decisions for AI-related projects Assist clients in building stronger AI capabilities and refining their methodologies Location This position is remote, with a focus on candidates in Belo Horizonte, State of Minas Gerais, Brazil.

Join our innovative team as a Fractional Senior Full Stack Engineer specializing in Stabilization and AI-Generated Code. In this role, you will be pivotal in developing cutting-edge software solutions that leverage AI technologies to enhance code efficiency and reliability. You will collaborate with a dynamic team of engineers and product managers, contributing to projects that push the boundaries of technology.

Join Our TeamOur Mission: To position Brazil as a global leader in artificial intelligence.At Enter, we merge human expertise with artificial intelligence to scale critical, high-volume tasks that still rely on manual processes. Our platform empowers large enterprises across Latin America to manage complex workflows, starting from legal operations and expanding throughout the enterprise. We leverage AI to create tailored legal defenses at scale, aiding companies in reducing costs while enhancing their success rates in litigation.Our team is comprised of the finest talents from renowned institutions across Brazil and beyond, including Harvard, UPenn, Stanford, ITA, USP, and Unicamp. We collaborate with industry giants such as Meta, Itaú, Mercado Livre, Latam, Airbnb, Santander, iFood, and Nubank to handle critical processes more efficiently. With over R$300M raised in capital and a valuation of R$2B, we are backed by esteemed investors like Sequoia and Founders Fund who share our vision for the future.Position OverviewAs a Junior Software Engineer at Enter, you will play a pivotal role in laying the groundwork for our AI agent platform. Your responsibilities will include tackling scalability challenges, processing large datasets, and building robust systems that support critical applications in production. You will work on backend systems, machine learning, and large language models (LLMs). While prior experience in all areas is not required, a strong curiosity and the ability to learn quickly are essential.Key ResponsibilitiesDesign and develop systems that support the AI agent platform, ensuring high availability and performance.Address scalability challenges, ensuring the platform evolves with increasing demand and complexity.Create solutions for efficient processing of large volumes of data while ensuring integrity, security, and accessibility.Collaborate with AI teams to integrate machine learning models and LLMs into the platform, facilitating the development and management of intelligent agents.Participate in code reviews and advocate for best development practices, continuously elevating software quality.

At bv, one of the largest private banks in Brazil, we take pride in being recognized for the second consecutive year as the best financial institution to work for in Brazil, according to the GPTW 2025 ranking! We have also received a Diversity seal in the Women category, reinforcing our commitment to equity.Our culture is genuinely alive: we embrace simplicity, integrity, partnership, and courage. We value relationships, innovation, and strive to create a collaborative and intentional environment that promotes diversity and inclusion.We are in a constant state of evolution, forging successful partnerships to fulfill our purpose of making the financial lives of individuals and businesses easier.Do you identify with us? Join our team today!

About Darwin AIDarwin AI revolutionizes the way mid-market companies operate by integrating AI-driven digital workers that automate vital business processes through WhatsApp. Our intelligent AI workers adeptly manage crucial customer interactions such as qualification of inbound inquiries, reactivation of outbound communications, satisfaction surveys, appointment scheduling, payment collections, and much more. Uniquely, we offer the sole no-prompt AI solution available, allowing businesses to harness the power of AI without the need for specialized technical skills or teams, ensuring effortless integration and immediate results.Be part of a dynamic and rapidly growing team that's reshaping the perception of AI and technology in the business landscape!Internship RoleWe are seeking a motivated individual who is eager to contribute to scaling our business tenfold and has a keen interest in technology and AI. This position is perfect for a student keen on gaining insights into Software, AI, and B2B environments.We are excited to connect with ambitious and inquisitive individuals who are ready to make a meaningful impact on our Customer Support team.

Join Enter.ai!Our mission is to position Brazil as a global leader in artificial intelligence.At Enter.ai, we merge human expertise and artificial intelligence to execute critical, high-volume tasks that still rely on manual processes on a large scale. Our platform enables major companies across Latin America to navigate intricate workflows, starting with legal operations and expanding across the enterprise. We leverage AI to create tailored legal defenses at scale, assisting businesses in lowering costs and enhancing their litigation success rates.Our team consists of the finest talents from prestigious institutions in Brazil and around the globe, including Harvard, UPenn, Stanford, ITA, USP, and Unicamp. Companies like Meta, Itaú, Mercado Livre, Latam, Airbnb, Santander, iFood, and Nubank partner with Enter.ai to manage critical processes more efficiently. With over R$300M raised and a valuation of R$2B, we have the backing of major investment funds like Sequoia and Founders Fund who share our vision for the future.Position OverviewAs a Software Engineer at Enter.ai, you will play a pivotal role in constructing the foundation of our AI agent platform. This position requires making critical technical decisions, defining architecture, and tackling scalability challenges while processing large volumes of data in production systems. You will engage with problems involving Backend, Machine Learning, and LLMs, enjoying a high degree of autonomy and accountability for the quality and advancement of our systems.Key ResponsibilitiesDefine and enhance the architecture of the systems supporting the AI agent platform, ensuring high availability, performance, and reliability.Lead decisions regarding scalability, ensuring the platform evolves with increasing demand and complexity.Design and implement solutions for processing large volumes of data while ensuring integrity, security, and efficiency at scale.Collaborate with AI teams to integrate machine learning models and LLMs, ensuring their effective application in production.Raise the technical standard of the team through code reviews, establishing best practices, and mentoring fellow engineers.

Join our dynamic AI Squads at Telnyx as a Software Engineer where you'll be at the forefront of innovative technology solutions. You will collaborate with talented professionals to develop cutting-edge AI applications that enhance our services and customer experiences.

bv seeks a Senior Software Engineer in São Paulo with deep experience in Java and Artificial Intelligence. This role centers on building software that uses AI to enhance products and services. Main responsibilities Design and develop software solutions that apply AI technologies to real business challenges Collaborate with teams from different disciplines to create scalable, high-performance applications Build responsive systems that address both business requirements and user needs Teamwork and collaboration Frequent interaction with cross-functional groups is a key part of this position. The focus is on delivering solutions that help bv reach its objectives.

Join our dynamic team at Gramian as a Software Engineer specializing in AI Infrastructure, focusing on MCP and Agentic AI technologies. Take the opportunity to work remotely from Brazil and contribute to cutting-edge projects that are shaping the future of artificial intelligence.

Overview:We are seeking talented Senior Software Engineers from LATAM to join our dynamic engineering team at Nerdy! As we continue to expand, your expertise in building innovative products using JavaScript and TypeScript, along with a core Object-Oriented Programming language such as Java, C++, or C#, will be invaluable. Our CI/CD software lifecycle and evolving service-oriented architecture hosted in AWS requires engineers with a robust focus on AI-Native development. Mastery of various Agentic coding tools is crucial for maximizing impact and accelerating implementations.In this role, you will significantly influence how students, educators, and institutions engage with our technology. Your contributions will help streamline class discovery processes, enhance accessibility and performance, and integrate AI into real-time classroom experiences. Collaborating with Product, Design, and Engineering teams, you will create fast, elegant, and responsive interfaces that bring our innovations to life.

jobgether seeks a Senior Software Engineer specializing in AI Infrastructure to join the team in Brazil. The focus of this position is to design, build, and maintain the AI systems that drive both current projects and future company growth. Key Responsibilities Create and refine AI infrastructure to support various company initiatives Maintain and enhance existing AI systems, ensuring reliability and strong performance Collaborate with teams throughout jobgether to introduce and implement new technologies Help guide the overall direction of AI efforts within the company Location This role is based in Brazil.

jobgether is looking for a Senior Software Engineer based in Brazil to help shape AI SaaS products. This position centers on building and improving software that uses artificial intelligence to solve real business problems. Role overview This role involves working closely with a team to design, develop, and refine AI-powered SaaS applications. The Senior Software Engineer will set high standards for code quality and system performance, ensuring that each release meets reliability and efficiency goals. What you will do Lead and contribute to the development of AI-driven SaaS solutions Collaborate with other engineers to deliver features and improvements Maintain a focus on software quality and performance throughout the development cycle Requirements Extensive experience in software engineering, ideally with AI or SaaS products Strong commitment to code quality and technical excellence Based in Brazil

About Tag Software GroupAt Tag Software Group, we are an exceptional team of seasoned investors and operators committed to acquiring, enhancing, and expanding mission-critical software companies that serve small and medium-sized businesses (SMBs), large enterprises, and the public sector.As a proud division of Valsoft Corporation, Tag provides a lasting home for software companies — our acquisitions are focused on sustainable growth, not reselling. Our aim is to cultivate enduring partnerships that safeguard your legacy, your workforce, and your clients.Our dedicated in-house team guarantees a speedy, transparent, and seller-friendly process, ensuring timely closings. Once integrated into TAG, your business will thrive with established best practices, specialized value-creation resources, and access to our extensive ecosystem of sister companies, including proprietary innovations like ValPay and Sadie AI to propel your business forward.CultureTag Software Group is more than just a workplace — we are a cohesive team that values our people as our greatest asset. Investing in our staff is our foremost priority.We strive to create an atmosphere where employees feel the thrill of their first day on the job, every single day, fostering a culture of high performance and collaboration. We celebrate our successes and take pride in our achievements. We Dream Big, Stay Humble, and Stay Hungry.The OpportunityThe AI Product Engineer is pivotal in developing innovative AI-driven products, significantly contributing to our technological advancement.With an entrepreneurial mindset, this role emphasizes rapid development, iterative experimentation, and delivering solutions that have a clear and measurable impact on the business. You will oversee the entire product lifecycle — from initial ideation and prototyping to deployment, scaling, and optimization.This hands-on position is perfect for someone who thrives in ambiguous situations and enjoys transforming concepts into market-ready tools.If you are passionate about building AI systems, delivering features, experimenting, and converting vague ideas into tangible products, we want to hear from you.

About the RoleJoin us at Hopper, where our cutting-edge technology powers some of the world's most significant travel portals. Our Hopper Technology Solutions (HTS) platform facilitates travel purchases for esteemed global brands — from banks to airlines and fintech innovators. This platform serves as a configurable, multi-tenant travel commerce engine, allowing partners to swiftly launch exceptional hotel and travel booking experiences with minimal custom engineering.We are in search of a seasoned software engineer who has embraced best practices in AI-assisted coding. Instead of merely auto-completing your code, you skillfully employ multiple agents to autonomously deliver features at unprecedented speeds. You possess a nuanced understanding of the strengths and limitations of LLMs and know how to establish effective feedback loops and guardrails to maximize their potential.Technology StackOur backend is built using Scala, complemented by a range of Google Cloud Platform (GCP) services.The frontend consists of web applications utilizing React and TypeScript.Your Daily ResponsibilitiesIdentify and implement enhancements to the codebase, enabling agents to operate faster and more securely.Collaborate with a team of elite engineers in a low-process environment that promotes trust and autonomy.Utilize AI to create comprehensive documentation and specifications that assist in driving decisions and building consensus asynchronously.Rapidly develop and learn. Orchestrate AI agents to create new features from user experience through to database management with minimal supervision.Design scalable solutions and foundational patterns that facilitate the efficient launch of new portals.Engage directly with Product Managers and business partners to shape and refine our roadmap; your insights and technical vision are invaluable.Work alongside a diverse team, providing and receiving constructive feedback essential for professional growth.

Join Telnyx as a Software Engineer within our innovative AI squads, where you will be at the forefront of developing cutting-edge artificial intelligence solutions. In this role, you will collaborate with cross-functional teams, designing and implementing software that enhances our AI capabilities and drives business growth. Your contributions will directly impact our product offerings and customer satisfaction.