Role Overview bv is looking for a Senior AI Engineer in São Paulo. This position focuses on designing and building advanced artificial intelligence solutions. The work aims to create real impact across industries. What You Will Do Develop AI-driven systems and models for practical applications Work closely with a skilled team to solve complex technical challenges Contribute expertise to projects that aim to advance technology Team and Culture Join a group of professionals who value collaboration and technical excellence. The team is committed to exploring new possibilities in AI and delivering results that matter.

Join ciandt, a leader in technology transformation, where we blend human ingenuity with advanced AI to develop scalable tech solutions.With a global team of over 8,000 professionals, we've partnered with more than 1,000 clients over our 30-year journey. Artificial Intelligence is not just a concept for us; it's our reality.We are on the lookout for a talented Senior AI Engineer to become part of our international team. In this pivotal role, you will be instrumental in designing, building, and deploying cutting-edge intelligent solutions leveraging Machine Learning and Generative AI technologies. Collaborating with diverse teams across product, data, and engineering, you will turn business challenges into impactful AI-driven solutions.Key Responsibilities• Architect, develop, and launch AI-powered applications and services, focusing heavily on Machine Learning and Generative AI applications.• Construct and integrate LLM-based solutions utilizing frameworks such as LangChain, ensuring they are robust, scalable, and high-performing.• Work closely with product managers, designers, and data scientists to translate complex business requirements into technical AI solutions.• Develop data pipelines, model training workflows, and inference services across various environments.• Optimize models and systems for performance, cost-efficiency, and scalability in production environments.• Adhere to best practices in model evaluation, monitoring, versioning, and responsible AI usage.• Participate in technical discussions, architectural planning, and proof-of-concept projects for AI initiatives.• Keep abreast of emerging AI technologies, tools, and industry developments.Qualifications• Proven experience as an AI Engineer, Machine Learning Engineer, or in a comparable role.• Deep understanding of Machine Learning concepts, algorithms, and the model lifecycle.• Practical experience with Generative AI (GenAI), including working with LLMs and prompt engineering.• Familiarity with LangChain for creating and managing LLM-based applications.

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.

Role overview Jobgether seeks a Senior AI Systems Engineer specializing in edge computing and inference. This role is based in Brazil and centers on designing, building, and deploying AI systems that operate directly on edge devices. The focus is on enabling real-time data processing and intelligent inference outside of traditional cloud environments. What you will do Develop AI solutions tailored for edge environments, ensuring efficient performance and reliability on-device. Implement systems that support real-time data analysis and inference, allowing immediate insights and actions at the source. Collaborate with cross-functional teams to deliver AI features that enhance Jobgether's product suite.

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.

Salary: $50,000 - $120,000 per year (Gross in USD)About Sezzle:Sezzle is on a mission to empower the next generation financially by transforming the shopping experience beyond traditional payments. We combine innovative technology with seamless, interest-free installment plans to make shopping smarter and more accessible. Our goal is to redefine how consumers discover, interact with, and purchase the products they love, driving significant impact on merchant sales through enhanced conversions and increased order values. As we continue to innovate in the fintech and retail space, we are building a passionate, dynamic team focused on creating a unique shopping journey that goes beyond mere transactions. If you are excited about pushing technological boundaries and delivering transformative experiences for both consumers and merchants, we invite you to join us at Sezzle and help shape the future of shopping!About the Role:We are in search of a highly skilled and motivated Senior AI Engineer with exceptional intelligence and emotional acumen. This role offers an exciting opportunity to thrive in a fast-paced environment within a rapidly growing team, providing ample opportunities for career advancement.Your primary responsibilities will include designing, developing, and deploying machine learning models that enhance our financial platform. You will spearhead the creation of scalable machine learning solutions for personalized recommendations in the Sezzle marketplace, fraud detection, and credit risk assessment, leveraging a mix of cloud services, open-source tools, and proprietary algorithms.As a leader, you will play a crucial role in integrating machine learning development and operations (MLOps) to automate and optimize the lifecycle of our ML models. Collaborating with engineers and data scientists, you will develop large-scale, high-quality solutions that address various challenges in the shopping and fintech sectors. Your efforts will ensure that our AI-driven features are robust, efficient, and scalable as we continue to expand.

Role overview Toloka AI is hiring a Senior Consultant to work on freelance AI projects. This position is designed for someone with experience at MBB or other top-tier consulting firms. The focus is on developing strategies and solutions to enhance Toloka AI's services. The role operates fully remotely, with a base in Belo Horizonte, State of Minas Gerais, Brazil. Key responsibilities Use consulting expertise to guide the direction and execution of AI projects Work closely with an international group of specialists Support the growth and improvement of Toloka AI's service offerings Location This is a remote role based in Belo Horizonte, State of Minas Gerais, Brazil.

We invite you to submit your CV in English, detailing your proficiency in the language.Mindrift serves as a vital link between specialists and project-oriented AI opportunities with top-tier technology firms, concentrating on the evaluation, testing, and enhancement of AI systems. Note: Participation is project-based and does not lead to permanent employment.Opportunity Overview:Each project presents distinct challenges, and contributors may be tasked with:Crafting original computational physics problems that authentically replicate real-world physics research workflows;Developing problems that necessitate Python programming for resolution (utilizing libraries such as Numpy, SciPy, and Sympy);Ensuring that the problems are computationally demanding, making manual solutions impractical within reasonable timeframes (days or weeks);Creating problems that require complex reasoning chains across mechanics, electromagnetism, thermodynamics, and quantum mechanics;Formulating problems based on actual research challenges or applicable scenarios in physics;Validating solutions using Python and standard physics simulation libraries;Clearly documenting problem statements and providing verified correct answers.Desired Qualifications:This role is an excellent match for optical engineers proficient in Python who are open to part-time, non-permanent engagements. Ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or related disciplines;Proficiency in Python for numerical validation; familiarity with MATLAB, R, C, SQL, Numpy, Pandas, SciPy, or any equivalent programming language is acceptable;A minimum of 2 years of professional experience, whether in applied, research, or teaching capacities;Experience with numerical simulation methodologies;Capability to design problems reflective of genuine physics research workflows;Inventive problem-solving skills across various physics domains;Familiarity with physics modeling and approximation techniques;Strong written English skills (C1 level or higher).Application Process:Apply → Pass qualifications → Join a project → Complete assigned tasks → Receive compensation.Project Commitment:During active phases, tasks are anticipated to require approximately 10–20 hours weekly, depending on project specifications. This is an estimate and not a guaranteed workload.Compensation:Contributors may earn up to $14 per hour based on their expertise and contribution level. Compensation varies by project according to scope, complexity, and required expertise. Other projects may offer different earning potential based on their demands.

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.

We invite you to submit your CV in English, along with details of your English proficiency level.At Mindrift, we specialize in connecting top-tier professionals with project-based AI opportunities for leading technology firms. Our focus is on the assessment, evaluation, and enhancement of AI systems through innovative contributions from specialists. This role is project-based and does not offer permanent employment.Key Responsibilities:As a contributor, you will engage in various project-specific tasks, which may include:Creating original optical problems that accurately simulate real-world physics research workflows;Designing computationally demanding challenges that require extensive timeframes to solve;Formulating complex problems that necessitate advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics;Base your problems on actual research challenges or relevant practical applications in optics and physics;Clearly document problem statements and provide verified correct solutions.Ideal Candidate Profile:This opportunity is well-suited for optical engineers looking for flexible, part-time non-permanent projects. The ideal candidates will possess:A degree in Physics (Theoretical, Experimental, or Computational) or a related discipline;At least 2 years of relevant professional experience, including applied, research, or teaching roles;Proficiency in numerical simulation methodologies;Capability to design problems that reflect authentic physics research processes;Innovative thinking in problem creation across various physics domains;Familiarity with physics modeling and approximation methods;Strong command of written English (C1+ level).Application Process:Interested candidates should apply, pass the necessary qualifications, join a project, complete assigned tasks, and receive compensation for their contributions.Workload Expectations:During active phases of projects, contributors should anticipate committing approximately 10–20 hours per week. Please note that this is an estimate and the actual workload may vary based on project needs.Compensation:Contributors can earn up to $14 per hour, depending on their experience level and contribution pace. Compensation may differ across projects based on their complexity, scope, and expertise required.

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

Join RD Station as a Senior Data Engineer specializing in Platform & AI. In this role, you will leverage your expertise in data engineering to design and implement robust data solutions that drive insights and enhance our AI capabilities. You will work in a dynamic, remote environment with a talented team committed to innovation and excellence.

Oowlish seeks a Senior Full Stack Engineer in Brasília, Federal District, Brazil. This position focuses on developing advanced applications using Next.js, AI technologies, and TypeScript. Role overview As a Senior Full Stack Engineer, collaboration with a talented team is central to the work. The role involves designing, building, and maintaining solutions that enhance user experiences and contribute to business growth. Key technologies Next.js AI technologies TypeScript Location This position is based in Brasília, Federal District, Brazil.

Encora is seeking a Lead Senior Software Engineer (AI) with strong experience in Go or Python to join its team in Brazil. This role centers on designing and building advanced AI-driven systems that strengthen cybersecurity solutions. Role overview The Lead Senior Software Engineer (AI) will take a key role in product innovation for offensive security. Responsibilities include guiding the technical direction of projects, developing AI-powered features, and ensuring high standards in software delivery. Leadership and mentorship This position involves mentoring junior engineers, sharing technical knowledge, and encouraging a culture of ownership and continuous learning. The engineer will help set best practices and foster technical excellence within the team. Requirements Strong background in Go or Python Experience designing and developing AI systems Ability to lead projects and mentor other engineers Interest in offensive security and cybersecurity solutions

Role overview Toloka AI seeks a freelance AI Trainer who combines civil engineering experience with strong Python programming skills. This contract position is fully remote, with work based in Belo Horizonte, State of Minas Gerais, Brazil. What you will do Guide and support others in civil engineering topics and Python programming as part of AI-focused projects. Help develop and refine methods for AI training. Apply your expertise to influence how new AI tools are built for the civil engineering field. Location This is a remote role tied to Belo Horizonte, State of Minas Gerais, Brazil.

Please submit your CV in English and indicate your English proficiency level. toloka-ai, through the Mindrift platform, offers project-based freelance work focused on evaluating, testing, and improving AI systems for leading technology companies. This is not a permanent position; assignments are tied to specific projects. Key responsibilities Create original optics challenges that reflect real research processes in physics. Design computationally intensive problems that require computer-based solutions. Develop tasks involving advanced reasoning in mechanics, electromagnetism, thermodynamics, and quantum mechanics. Base problem sets on real-world research questions or practical scenarios in optics and physics. Document problem statements clearly and provide accurate, verified solutions. Requirements Degree in Physics (theoretical, experimental, or computational) or a closely related field. Minimum of 2 years in applied, research, or teaching roles. Experience with numerical simulation methods. Ability to construct problems that mirror authentic research approaches in physics. Creative mindset for developing problems across various physics domains. Knowledge of physics modeling and approximation techniques. Strong written English skills at C1 level or higher. Project workflow Apply Pass qualification steps Join a project Complete assigned tasks Receive compensation Time commitment During active projects, expect to dedicate approximately 10 to 20 hours per week. Actual hours may vary and are only required while a project is in progress. Compensation Rates are up to $14 per hour, depending on experience and the complexity of the tasks. Compensation may differ between projects based on their requirements. Location This freelance remote position is based in Belo Horizonte, State of Minas Gerais, Brazil.

Join RD Station as a Senior Data Engineer, specializing in Platform & AI, where you will play a pivotal role in leveraging data to drive our innovative solutions. In this remote position, you will be responsible for designing, constructing, and maintaining robust data pipelines that ensure the accuracy and effectiveness of our data systems.

Encora is hiring a Senior AI Specialist based in Brazil. This is a full-time, work-from-home position. Role overview This role focuses on advanced artificial intelligence projects. The Senior AI Specialist will apply AI expertise to support Encora's initiatives and drive results in a remote setting. Location and schedule Location: Brazil Schedule: Full-time Work mode: Remote (work from home) What to expect As a Senior AI Specialist, expect to contribute to AI-driven solutions while collaborating remotely with colleagues. The position offers the flexibility of working from home and requires a strong background in artificial intelligence.

Sezzle is looking for a Senior AI Engineer to join the Marketing team. This is a remote position available to candidates located in Brazil. The role centers on using advanced artificial intelligence to improve marketing efforts and enhance customer interactions. What you will do Apply AI technologies to refine marketing strategies Work on projects aimed at strengthening customer experiences Collaboration Collaboration is a key part of this role. Expect to share ideas and solve problems alongside both marketing and technical teammates. The team values creativity and welcomes new approaches to drive results.