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Articul8 AI

Full-time|Remote|Brazil/Remote

Company Overview: At Articul8 AI, we are committed to excellence, creating groundbreaking AI products that surpass customer expectations. Our team of passionate professionals takes pride in their work and aims for greatness in every facet of our business. We leverage our strengths to foster a positive impact on the world and inspire others to follow suit.Job…

Jan 5, 2026

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AI LoRA Character Creator

Jobgether

Full-time|On-site|Brazil

Jobgether is looking for an AI LoRA Character Creator based in Brazil. This position focuses on developing engaging characters using advanced AI tools, with an emphasis on LoRA techniques. Role overview The AI LoRA Character Creator works closely with teams across the company to design and build characters that support and enrich user experiences. The goal is to create characters that connect with our audience and add value to the platform. What you will do Design and develop characters using AI and LoRA technologies Collaborate with colleagues from different departments to ensure characters fit project needs Focus on character qualities that resonate with users Location This role is based in Brazil.

Apr 30, 2026

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AI Trainer - Coding Specialist (Fluent in Portuguese - Brazil)

Agency

Contract|$8/hr - $65/hr|Remote|Brazil

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.

Feb 12, 2026

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Principal Site Reliability Engineer

Sigma Software

Full-time|On-site|São Paulo

Define and spearhead the infrastructure and reliability strategy across our innovative platform.Collaborate with engineering teams to design scalable and resilient systems.Streamline build, testing, and deployment processes to enhance speed and stability.Establish and maintain best practices for CI/CD, monitoring, and observability.Lead incident response efforts and champion continuous improvement following incidents.Automate workflows to minimize operational toil and mitigate risks.Guide and mentor engineers, fostering a culture of operational excellence.Make strategic build-vs-buy decisions that balance speed, quality, and sustainability.

Feb 23, 2026

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Generative AI Content Marketing Strategist

TransPerfect

Full-time|On-site|Sao Paulo , São Paulo, Brazil

The Generative AI Content Marketing Strategist plays a pivotal role in embedding Generative AI throughout the organization’s digital content marketing efforts. This includes both customer-facing initiatives and internal operational processes. This position spearheads the adoption, development, and customization of AI-driven tools to elevate marketing performance. Leveraging a robust background in digital marketing and Generative AI, the strategist will implement solutions that integrate seamlessly with existing systems, enhancing efficiency across all digital platforms.Key Responsibilities:Lead the integration of Generative AI into digital marketing processes to enhance efficiency and personalization.Deliver innovative content solutions powered by both human expertise and AI, including copywriting, content planning, strategy development, and analytics.Design and implement AI-driven solutions to optimize marketing performance and automate essential operations.Collaborate proactively with cross-functional teams to ensure smooth AI technology integration into current systems.Stay informed on the evolving AI landscape and apply best practices to address marketing challenges.Provide ongoing training and support to teams on AI tools and strategies, cultivating a culture of innovation.Establish and monitor KPIs to evaluate AI's impact on marketing activities, ensuring measurable outcomes.Lead the ongoing training and mentorship of TransPerfect Digital AI champions in the region and ensure external vendor talent pools adapt to scalable solutions.

Apr 6, 2026

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AI Agent Skills Governance Specialist

bv

Full-time|On-site|São Paulo

Join bv as an AI Agent Skills Governance Specialist, where you will play a pivotal role in overseeing and optimizing the skills and performance of our AI agents. This position will require you to ensure that our AI systems are functioning effectively, providing insights for continuous improvement, and adhering to governance standards.

Apr 13, 2026

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AI Innovator - Shape the Future of Fintech with AI

CloudWalk

Full-time|On-site|São Paulo

About CloudWalk:At CloudWalk, we are more than just a fintech unicorn; we are a collective of visionaries, innovators, and technology lovers dedicated to revolutionizing the payments landscape. With millions of satisfied customers and an insatiable thirst for advancement, we're actively growing our neural network—both in capabilities and in spirit.The Opportunity: This is not your average tech role. We invite AI enthusiasts from diverse backgrounds to join us. Whether your expertise lies in People Operations, Marketing, Customer Success, Risk Analysis, Design, or any other domain where you believe AI can be transformative—this is your chance to shine.Instead of a conventional hiring process tied to a specific role, we will assess your individual AI skills and professional journey to find the ideal match within CloudWalk. This may involve joining an existing team where your AI talents can make an immediate impact, or even the creation of a new position tailored to your unique abilities and our evolving needs. Consider this your opportunity to influence how AI reshapes fintech at CloudWalk.

Mar 25, 2026

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Senior Backend Engineer - Java (Remote)

Oscilar

Full-time|Remote|Brazil - Remote

Join Us in Shaping the Future of Trust in the Age of AIAt Oscilar, we are at the forefront of developing the most sophisticated AI Risk Decisioning™ Platform. Financial institutions, fintechs, and other digital enterprises count on us to effectively manage their fraud, credit, and compliance risks utilizing AI technology. If you are driven by the challenge of tackling intricate problems and enhancing internet safety for all, we welcome you to apply.Why Choose Oscilar?Mission-Driven Teams: Collaborate with seasoned experts from notable firms such as Meta, Uber, Citi, and Confluent, all committed to the mission of enhancing digital safety.Empowerment and Impact: At Oscilar, we embrace a culture of extreme ownership. You will have the autonomy to take charge, act swiftly, and make impactful decisions that propel our mission forward.Innovate at the Cutting Edge: Your contributions will influence how contemporary finance identifies fraud and manages risk.Position OverviewAs a Senior Backend Engineer at Oscilar, you will be instrumental in designing, constructing, and maintaining the foundational infrastructure of our SaaS platform. You will work closely with cross-functional teams to deliver scalable, low-latency, and highly reliable services that cater to our global enterprise clientele.Key ResponsibilitiesDevelop and design scalable, high-performance, and low-latency backend services utilizing Java and AWS technologies.Work collaboratively with product management, frontend, and QA teams to outline technical requirements and ensure seamless integration with other platform components.Enhance and optimize existing services for maximum performance, reliability, and maintainability.Identify and remedy system bottlenecks to ensure optimal resource usage and system stability.Implement industry best practices for code quality, testing, and deployment, including CI/CD pipelines.Monitor backend services' health and performance proactively, taking necessary measures to address potential issues.Provide mentorship and technical guidance to junior engineers.QualificationsMinimum of 5 years of experience in backend development, preferably with Java and AWS.Strong understanding of microservices architecture and RESTful API design.Experience with database technologies such as SQL and NoSQL.Excellent problem-solving skills and a proactive attitude towards challenges.Ability to work effectively in a collaborative environment.Strong communication skills, both written and verbal.

Dec 18, 2025

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Lead Solutions Engineer

Taktile

Full-time|On-site|São Paulo

At Taktile, we are revolutionizing the way financial institutions utilize artificial intelligence for pivotal decision-making. As we expand rapidly with a diverse portfolio of enterprise clients in financial services, we are seeking a Lead Solutions Engineer to join our pre-sales team. In this role, you will showcase the transformative capabilities of AI-driven decision-making to top-tier financial institutions globally.As a Lead Solutions Engineer specializing in enterprise pre-sales, you will act as the technical liaison between prospective enterprise clients and our cutting-edge AI decisioning platform. Collaborating closely with the Sales Team, you will design AI-driven solutions tailored for the most forward-thinking financial organizations. Your goal is to secure technical success by demonstrating how Taktile harnesses Generative AI and advanced machine learning to address intricate challenges related to credit, risk, and fraud. You will become a trusted advisor to our clients, assisting them in achieving their strategic objectives and realizing value through the integration of Taktile into their decision-making technology stack.If you are enthusiastic about pioneering technology, keep abreast of the latest advancements in AI, and possess several years of practical experience with Python, APIs, and contemporary AI models in customer-facing roles—while thriving in a supportive team that encourages your growth—you will find this opportunity incredibly rewarding!

Oct 16, 2025

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Senior Sales Engineer

Harness, Inc.

Full-time|On-site|São Paulo, São Paulo, Brazil

Harness, Inc. develops an AI-driven Software Delivery Platform that helps teams deliver software quickly and securely. The company was founded by Jyoti Bansal, who previously started AppDynamics. Harness has raised approximately $570 million and is valued at $5.5 billion, with backing from investors such as Goldman Sachs, Menlo Ventures, IVP, Unusual Ventures, and Citi Ventures. As artificial intelligence changes how code is generated, Harness focuses on the challenges that come after code is written: testing, deployment, application security, reliability, compliance, and cost management. The platform uses AI and a Software Delivery Knowledge Graph to automate these processes and provide deep insights, ensuring governance and policy controls are integrated from the beginning. Platform Impact Handled 185 million deployments and 82 million builds in the past year Evaluated 18 trillion feature flags Completed 8 million security scans Optimized 9.1 billion tests Protected 3 trillion API calls Managed $2.8 billion in cloud spend Major clients, including United Airlines, Morningstar, and Choice Hotels, have used Harness to accelerate release cycles by up to 75%, reduce cloud costs by as much as 60%, and increase DevOps efficiency tenfold. Team and Culture Harness has a global presence, with team members in 26 offices across 25 countries. The company continues to advance AI-powered software delivery and seeks talented individuals to join its mission.

Apr 22, 2026

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Lead IT Engineer - Productivity Systems

NuBank

Full-time|On-site|Brazil, Belo Horizonte; Brazil, Campinas; Brazil, Rio de Janeiro; Brazil, Sao Paulo

About UsNu is a leading digital financial platform, proudly serving over 122 million customers across Brazil, Mexico, and Colombia. Our mission is to simplify financial services and empower individuals, marking the beginning of a transformative journey in Latin America.Listed on the New York Stock Exchange (NYSE: NU), we leverage proprietary technology and data intelligence to deliver accessible and human-centric financial products.Our achievements have earned us recognition in esteemed global rankings, including Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Explore more about us on our official page here.About the RoleWe are seeking a skilled engineer who excels in resolving "meta-problems"—optimizing the tools and processes that underpin our teams' operations. In this role, you will design and implement high-impact automation solutions, oversee enterprise tool implementations (e.g., Postman, n8n), and establish technical governance for advanced AI workflows.Key ResponsibilitiesEnterprise Automation & Platform Engineering:Lead the design, implementation, and maintenance of automation platforms (e.g., n8n) that streamline workflows across various business units.Enhance critical communication infrastructure (e.g., AWS SES) to guarantee high availability for internal and transactional messaging.AI &

May 4, 2026

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Generative AI Content Marketing Strategist

tgs

Full-time|On-site|Sao Paulo , São Paulo, Brazil

As a Generative AI Content Marketing Strategist at tgs, you will play a pivotal role in harnessing the power of Generative AI to revolutionize our digital content marketing strategies. This position encompasses both external customer-facing initiatives and internal operational processes, ensuring that AI solutions enhance our marketing performance across all digital platforms. You will lead the development and customization of AI-powered tools, driving efficiency and personalization in our marketing efforts.In this dynamic role, you will:Spearhead the integration of Generative AI into our digital marketing processes, fostering innovation and enhancing customer engagement.Oversee the delivery of diverse content solutions, including copywriting, content strategy, planning, and analytics.Design and deploy AI-driven solutions that optimize marketing performance and automate key operations.Collaborate closely with cross-functional teams to ensure a seamless integration of AI technologies within existing systems.Stay abreast of the latest developments in the AI landscape, implementing cutting-edge strategies to address marketing challenges.Provide comprehensive training and support on AI tools and strategies, fostering an innovative culture within the organization.Establish and monitor KPIs to evaluate the impact of AI on our marketing initiatives, ensuring the delivery of measurable value.Lead ongoing training and mentoring initiatives for regional TransPerfect Digital AI champions and support the scalability of external vendor talent pools to align with technological advancements.

Apr 6, 2026

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Freelance AI Trainer and Annotator (English)

Toloka

Part-time|$9/hr - $9/hr|Remote|Remote — Belo Horizonte, State of Minas Gerais, Brazil

Please submit your resume in English and include your English proficiency level. Toloka offers freelance projects that support artificial intelligence development. The company connects people worldwide to tasks that improve AI systems. More information is available at toloka.ai. Toloka Annotators works with leading technology companies on Generative AI projects. The team brings together individuals from many countries to provide real human input, helping AI systems become more accurate and reliable. Role overview Freelance AI Trainers and Annotators help AI systems better understand language and information. When projects are active, tasks may include evaluating AI-generated content, fact-checking, or comparing different online responses. Main responsibilities Review data such as text, images, or videos for each project Tag or categorize content according to project guidelines Identify and report content that is factually incorrect, sensitive, inappropriate, or unclear Project details This is a project-based freelance role. Tasks are available only when projects are active. Invitations to participate depend on your profile and current needs. Work is remote from Belo Horizonte, State of Minas Gerais, Brazil. Compensation Pay depends on the project scope and required skills. AI trainers and annotators can earn up to $9 per hour for certain projects.

Apr 28, 2026

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Senior Full Stack Developer with AI Expertise

AE Studio

Full-time|Remote|Florianopolis office/ Brazil remote

Join AE Studio, a premier development, data science, and design studio dedicated to partnering with founders and executives to craft bespoke software solutions and advanced machine learning applications. We create innovative products, platforms, and internal initiatives that enhance the agency of all conscious beings. Our team merges exceptional software engineering, AI proficiency, and intuitive product design to deliver impactful projects that truly matter. We are seeking a Senior Full-Stack Developer who excels at integrating modern web engineering with practical AI applications. This role entails designing, developing, and deploying production-ready AI-driven applications while upholding the standards expected of a leading software developer.

Feb 11, 2026

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AI Marketing Manager - 100% Remote

Wishpond Technologies

Contractor|Remote|Brazil

Join Wishpond Technologies as an AI Marketing Manager and be at the forefront of innovative marketing strategies! POSITION SUMMARYWe are on the lookout for a dynamic AI Marketing Manager to enhance our global marketing initiatives. This role is fully remote, allowing the right candidate to work from anywhere in the world. You will play a pivotal role in the Marketing Team, responsible for designing, executing, and optimizing cutting-edge marketing programs that utilize AI, automation, and insightful data analysis to drive growth for all Wishpond Technologies brands, including Wishpond, PersistIQ, Brax, and Essential Studio Manager.In this role, you will closely collaborate with diverse teams to create scalable go-to-market strategies, manage product launches, and enhance customer engagement through AI-driven personalization. Your contributions will significantly impact brand visibility, product adoption, and overall revenue performance, making you integral to the success of Wishpond Technologies.KEY RESPONSIBILITIES• Develop and implement AI-enhanced marketing initiatives across performance marketing, lifecycle marketing, social media, and product marketing.• Leverage AI tools, predictive analytics, and automation to enhance campaigns, uncover growth opportunities, and achieve revenue targets.• Maintain high-quality brand messaging across various platforms, utilizing AI for content generation, testing, and personalization.• Foster positive relationships with customers, partners, and internal teams.• Assist in managing marketing budgets, ensuring efficient allocation through automated forecasting and performance modeling.• Collaborate with team members to contribute to a positive, values-driven culture.• Implement a culture of experimentation through A/B testing, machine-learning insights, and performance dashboards.• Support the creation of AI-powered go-to-market strategies to drive product adoption and business growth.• Contribute to overall marketing strategies that support business growth and product adoption.• Optimize existing channels (email, social media, website, paid media) through automation, segmentation, and real-time performance insights.

Mar 9, 2026

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Senior/Principal Data Engineer

Sigma Software Group

Full-time|On-site|Brasília

Join our innovative team as a Senior/Principal Data Engineer and play a crucial role in designing a scalable, future-proof data infrastructure. You will be responsible for establishing a robust data platform that facilitates analytics and reporting, ultimately supporting business KPIs.Design and implement a scalable data warehouse or data lakehouse to enhance analytics and reporting capabilities.Develop and maintain dependable batch and streaming data pipelines sourced from internal databases and external systems.Collaborate closely with stakeholders to convert business requirements into efficient data models and schemas.Establish and uphold data modeling standards and best practices throughout the organization.Implement monitoring, data quality controls, and observability measures for all data workflows.Deliver well-structured datasets that empower self-service analytics for BI and data teams.Document the data platform comprehensively, including data lineage, definitions, and contracts to create a shared source of truth for metrics.

Mar 3, 2026

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AI Deployment Lead

avra

Full-time|On-site|São Paulo

We are seeking an innovative and driven AI Deployment Lead to join our dynamic team at avra. In this pivotal role, you will spearhead the deployment of cutting-edge AI solutions, ensuring seamless integration and optimal performance. Your expertise will guide our projects from conception to execution, making a significant impact on our operational efficiency and service delivery.

Mar 12, 2026

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Forward Deployed Engineer

HappyRobot.ai

Full-time|On-site|Brazil

About HappyRobotHappyRobot is the cutting-edge infrastructure that empowers enterprises to construct and manage AI workforces. Our AI agents not only communicate—they autonomously make decisions, take actions, and oversee operations spanning voice, email, and enterprise systems. Originating from Y Combinator (S23) and supported by a16z and Base10 with over $60M in funding, we facilitate essential operations for global businesses.Our platform has proven its strength in the most challenging environments, where the implications of AI are significant. Initially focused on logistics, we have developed our own voice stack, models, and orchestration layer from the ground up, and now we are extending this robust infrastructure to every enterprise that drives the real economy. Discover more about our vision in our manifesto.Role OverviewWe are on the lookout for a dynamic and highly proficient Forward Deployed Engineer based in Brazil to join our innovative team. In this role, you will leverage your strong technical expertise coupled with exceptional communication skills to work directly with our clients, ensuring they derive maximum value from HappyRobot’s AI platform. Your responsibilities will include onboarding, implementation, and ongoing support, as well as contributing to product development and innovation.At HappyRobot, we believe in a flat structure with no seniority—our team operates as a collective of builders. We execute, we innovate, we take ownership, and we genuinely care about our clients and their success.

Mar 24, 2026

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Senior Infrastructure Engineer

Scrunch

Full-time|On-site|Brazil

About ScrunchScrunch is an innovative startup empowered by venture capital, dedicated to ushering brands into an AI-driven future. As reliance on large language models (LLMs) grows, Scrunch enables marketing teams to adapt their strategies for AI platforms like ChatGPT, Claude, and Gemini, fundamentally transforming how products and services are discovered.With an impressive $26 million investment from notable funds such as Mayfield, Decibel, Homebrew, and GTM Capital, Scrunch has rapidly expanded since its commercial launch. Currently, over 500 brands, including Fortune 500 companies like Lenovo and industry leaders like Skims, leverage our platform.About the RoleWe are seeking a Senior Infrastructure Engineer to join our dynamic team. This pivotal role involves designing, building, and maintaining the core systems that support Scrunch's platform. From cloud infrastructure and developer tools to observability and reliability, your work will be essential to our operations and growth.What We're Looking For:Ideal candidates will possess:Experience in a fast-paced software development environment.Proven expertise in designing and managing scalable cloud services, preferably on GCP.Hands-on experience with edge computing functions and the ability to determine the appropriate deployment strategy.A software mindset towards infrastructure, utilizing version control and automation (knowledge of Terraform or similar IaC tools is advantageous).A robust understanding of database performance and scaling, with experience in diagnosing and resolving potential bottlenecks.Familiarity with workflow orchestration or job queue systems like Prefect, Airflow, and Temporal, and the capability to design reliable asynchronous pipelines.

Mar 27, 2026

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Freelance AI Trainer - Language Alignment & Resource Partner (Portuguese)

Agency

Contract|Remote|Brazil

Join our innovative team as a Freelance AI Trainer, specializing in Language Alignment and Resource Partnership for the Portuguese language. In this role, you will collaborate with our experts to enhance AI language models, ensuring optimal performance and accuracy.Your contributions will play a crucial role in the development and refinement of AI applications, catering to the unique linguistic features of Portuguese. We are looking for individuals who are passionate about language technology and are eager to make a difference in the AI landscape.

Apr 5, 2026

Senior Fullstack Java/Node and React Developer

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