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Experience Level
Senior
Qualifications
Proven experience in full-stack development with a focus on back-end technologies. Strong proficiency in Node.js and React for web application development. Experience with Docker and Kubernetes for container orchestration. Solid understanding of CI/CD practices. Familiarity with PostgreSQL for database management. Experience with observability tools, particularly Datadog. Ability to integrate messaging systems for seamless service communication. Collaborative mindset and ability to work in cross-functional teams. Experience with AI-powered development tools is a plus. Knowledge of AWS services is advantageous.
About the job
At CI&T, we specialize in technological transformation, combining human expertise with AI to develop scalable tech solutions. With over 8,000 CI&Ters worldwide, we have partnered with more than 1,000 clients throughout our 30-year history. AI is at the core of our reality.
Note: If you reside in the Metropolitan Region of Campinas, it will be mandatory to be present in our offices in the city, as per the current attendance policy.
Hi, this is Bia from CI&T!
I am a Talent Attraction Analyst looking for individuals located in Brazil to work as a Senior Fullstack Developer on one of CI&T's projects.
Responsibilities/Requirements
While our focus is primarily on back-end development, we require a full-stack developer to assist with front-end tasks as needed.
Develop and maintain web applications using Node.js and React.
Work with back-end services in Go, Kotlin, Java, or Python.
Implement and manage containers using Docker.
Orchestrate services in Kubernetes environments.
Contribute to the creation and maintenance of CI/CD pipelines.
Utilize PostgreSQL databases for data storage, manipulation, and troubleshooting.
Implement observability practices using Datadog.
Integrate messaging systems like Kafka and S3 for service communication.
Collaborate with cross-functional teams to define, design, and deliver new functionalities.
Explore and implement AI-based coding solutions to optimize processes and development, familiar with tools such as Cursor, Claude Code, Copilot, or Winsurf.
Knowledge of and experience with AWS, such as S3.
#LI-BA1
About CI&T
CI&T is a global leader in technological transformation, leveraging AI and human expertise to create innovative, scalable solutions for businesses. With a rich history of partnering with numerous clients, CI&T continues to drive digital transformation across various sectors.
About EnterOur mission is to position Brazil as a global leader in artificial intelligence.Enter combines human expertise and artificial intelligence to scale critical, high-volume tasks that still rely on manual processes. Our platform empowers large enterprises across Latin America to navigate complex workflows, starting with legal operations and extending…
Role overview ciandt is looking for a Senior Machine Learning Engineer in Brazil. This role focuses on leading AI projects that deliver measurable results. The team values hands-on experience and collaboration across machine learning initiatives. What you will do Lead the design and implementation of machine learning algorithms Develop scalable solutions to improve product features and performance Work closely with other engineers and specialists to solve complex problems What we look for Strong background in machine learning and AI Experience building and deploying algorithms in production environments Ability to collaborate with a team of professionals in the field
Brex supports businesses in over 200 markets, providing a unified platform for corporate cards, banking, spend management, bill payment, and travel software. Well-known companies such as DoorDash, Coinbase, and Zoom rely on Brex to manage expenses, automate accounting, and streamline operations. The platform uses AI-driven automation and offers dedicated support, allowing clients to focus on their main priorities. Engineering teams at Brex design scalable systems with a commitment to both quality and speed. Collaboration is central, with teams spanning Software, Data, Security, and IT. Engineers are encouraged to take ownership of their work, approach software as a craft, and pursue growth into leadership roles. Role overview The Software Engineer - Forward Deployed Agent Builder focuses on automating and enhancing Brex’s internal processes. This role involves partnering with various teams to understand their workflows, then designing, developing, and deploying AI agents that create measurable improvements. Work includes integrating existing models and frameworks, connecting tools, MCPs, and internal systems to build smooth agentic workflows. Most of the time will be spent building, iterating, and delivering solutions directly with the teams supported. Work environment This role is based in São Paulo, São Paulo, Brazil. Brex uses a hybrid work model, with at least three coordinated days in the office each week (Monday, Wednesday, and Thursday). Employees have the option to work fully remotely for up to four weeks each year.
Join Our Dynamic Agent Operations TeamAt Tako, our Agent Operations team is vital in managing our agents and serves as the primary contact point for our clients. We ensure that critical payroll processes and legal obligations are executed in an automated, precise, compliant, and reliable manner, even in the most challenging scenarios.We work collaboratively, directly, and with minimal internal bureaucracy, empowering our team with a high level of responsibility. Close collaboration with clients, as well as constant partnership with Product, Engineering, and Customer Success, is crucial as we validate complex scenarios, monitor exceptions, ensure the reliability of automated workflows, and actively contribute to product evolution and the establishment of a new standard for AI-powered payroll in Brazil.We value curious individuals who challenge the status quo, learn quickly, and take ownership of problems, not just execution.About the PositionWe are looking for an AI Customer Experience Analyst to act as the human touchpoint between our clients and internal Operations and Engineering teams.The N2 is responsible for ensuring no client is left unanswered. This role focuses on addressing inquiries that AI cannot resolve, such as flow questions, platform issues, and most importantly, managing the customer experience. This position filters inquiries to determine whether they go to Payroll Agents or Engineering.This role offers a high level of autonomy, organization, and responsibility, suitable for professionals eager to engage with customer service and platform support, able to work efficiently, empathetically, and with a business-minded approach—even without being technical payroll specialists.The analyst will manage the entire inquiry process from triage to confirmation with the client that the issue has been resolved, playing a central role in enhancing the customer experience with Tako through active communication, consistent follow-up, and agile resolution.
Senior AI Engineer About Sierra StudioSierra Studio is an innovative AI engineering firm and startup incubator dedicated to transforming visionary ideas into tangible products. With our headquarters in Los Angeles and a diverse team spread across the globe, we specialize in developing software solutions ranging from dynamic web and mobile applications to pioneering advancements in artificial intelligence and large language models. About The RoleAs a Senior AI Engineer at Sierra, you will spearhead engineering efforts for various AI projects. Your responsibilities will include designing the technical architecture, leveraging LLMs to address real-world challenges, and collaborating with cross-functional teams to deliver exceptional products. Joining our startup at this stage means you will also contribute to shaping our company culture!Here’s a glimpse into your potential contributions at Sierra:Client Projects: Collaborate with startup founders to create MVPs for their innovative ideas.Internal Projects: Develop AI tools to enhance our internal workflows.Hiring: Assist in expanding our engineering team by evaluating potential candidates.Leadership: Guide and mentor fellow engineers to elevate the team's capabilities. Who We’re SeekingWe are searching for a lead engineer with a proven track record of crafting outstanding products utilizing large language models, whether through professional or personal projects. LLMs & AIDemonstrated experience in building innovative applications with LLMs, in professional or personal settings.Proficient in prompt engineering, retrieval-augmented generation (RAG), and agentic patterns.Experience in creating evaluations for LLM-powered solutions.A growth mindset with the ability to swiftly adapt to new skills in the AI landscape.A strong curiosity regarding AI and the implications of large language models. LeadershipProven ability to steer the technical direction of products from conception to deployment.Strong collaborative skills to work effectively with product managers, designers, and other stakeholders.Capacity to manage multiple projects concurrently.
Job OverviewJoin tempo as a Full-Stack Engineer and become an integral part of our innovative team. You will be tasked with crafting high-performance, user-friendly web applications within our AI-driven visual Integrated Development Environment (IDE). Your collaboration with a diverse team will enable you to leverage your technical skills to enhance the user experience for both designers and developers.Key ResponsibilitiesDesign and build efficient front-end solutions for our visual IDE, focusing on performance and scalability.Collaborate closely with UX/UI designers to convert design ideas into functional, high-quality code.Contribute throughout the development lifecycle, including coding, testing, debugging, and deployment.Develop and maintain backend systems using TypeScript, integrating Supabase functionalities for database, authentication, and storage needs.Create, version, and document APIs (REST and/or RPC) with comprehensive specifications using OpenAPI/Swagger for enhanced developer experience.Ensure adherence to high graphic standards and maintain brand consistency.Stay abreast of new front-end technologies and methodologies, implementing them to enhance our platform.Maintain an online presence during the hours of 9 AM - 4 PM EST.QualificationsBachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.A minimum of 2 years of experience as a full-stack developer, preferably in a startup or product environment.Proficient in TypeScript and modern React development, including HTML, CSS, and JavaScript fundamentals.Experience with Tailwind CSS and the ability to create responsive, adaptive interfaces.Familiarity with Supabase (Postgres, Auth, Storage) and Supabase Edge Functions.Experience in building and documenting APIs, particularly with OpenAPI/Swagger or similar tools.Strong problem-solving skills, keen attention to detail, and comfort in shipping production code.Excellent communication skills and a collaborative mindset, thriving in teamwork with designers, PMs, and engineers.
Join Scrunch as a Product EngineerScrunch is a pioneering startup committed to leading brands into an AI-driven future where consumers use advanced language models (LLMs) to find, comprehend, and act on relevant information.In an era where AI search and conversational agents are transforming traditional web search, Scrunch empowers marketing teams to rethink how their offerings are discovered on platforms like ChatGPT, Claude, and Gemini—aligning with AI technologies rather than competing against them. This evolution marks one of the most significant shifts in marketing since the internet's inception.Backed by $26 million from prominent investors including Mayfield Fund, Decibel, Homebrew, and GTM Capital, Scrunch has experienced rapid growth since its commercial launch. Today, over 500 brands, including Fortune 500 giants like Lenovo and leading innovators like Skims, leverage our platform.About the RoleWe are seeking a proactive Product Engineer to take ownership of product development from concept to launch.This position is ideal for a candidate who not only codes but also contributes to defining the product's development strategy and its significance in the market.You will engage with both frontend and backend systems to rapidly convert ideas into functional features, all while creating scalable systems. Comfort with ambiguity, making product decisions, and utilizing cutting-edge AI tools to enhance efficiency is essential.Your primary objective will be to deliver high-quality products that enhance clarity, user adoption, and deliver real value to users.We welcome applications from engineers, product managers, or designers with strong technical backgrounds who are eager to take a hands-on approach to product development.Key ResponsibilitiesDevelop & Deliver ProductsTake full ownership of product features from conception to production across both frontend and backend domains.Deliver high-quality features rapidly without compromising on quality.Influence Product DirectionTransform product concepts into tangible user experiences, embracing new technologies or tools as necessary.Enhance Efficiency Through SystemsCreate reusable components and workflows that improve team productivity over time rather than offering one-off solutions.Accelerate with AIUtilize AI tools to streamline processes and increase productivity.
Join our dynamic team at Docplanner as a B2C Commercial Supervisor focused on Upsell strategies within the AI sector. In this role, you will oversee a talented team, driving commercial success through innovative upselling techniques tailored for our B2C clients. Your insights will help shape our approach to customer engagement and revenue generation.
Shift Technology stands at the forefront of innovation in the insurance sector, offering a leading AI platform that transforms underwriting, claims handling, and risk management. Our solutions harness generative, agentic, and predictive AI to enhance operational efficiency and deliver exceptional customer experiences, driving measurable business impact for the world’s top insurers.Our diverse team, united by a shared commitment to revolutionizing the insurance industry through our SaaS platform, embodies a culture of innovation and trust. Together, we are shaping the future of how insurance operates, drawing on insights from over 50 countries.As a Project Manager within our Delivery Team in Sao Paulo, you will lead the deployment of Shift’s AI solutions for our global insurance clients. You will be the critical link between our technical teams and client stakeholders, ensuring that projects progress from initial planning to successful, scalable implementations. Your role is to proactively identify risks and cultivate strong relationships built on trust, ensuring our products provide tangible value across various markets. This hybrid role requires you to be in the office two days a week and is vital for fostering the collaborative spirit that drives our success at Shift.What Your Impact Looks Like:Jump In & Get Things Done: Proactively manage project milestones and swiftly resolve blockers to maintain delivery timelines. Collaborate with our technical program management team to align product roadmaps with project plans and oversee the release process.Simplify the Complex: Effectively translate technical requirements and project plans into clear, accessible language for internal teams, customers, and C-level stakeholders.Decide with Data & EQ: Navigate complex client relationships by balancing hard project data with emotional intelligence, especially in high-pressure situations.Test, Learn, Scale: Innovate with new project management methodologies and share insights to enhance the delivery organization’s speed and quality.Fix Issues Without Drama: Tackle delivery challenges directly and constructively, focusing on collaborative problem-solving rather than placing blame.Communicate with Impact: Tailor your communication style to align various stakeholders, from operational teams to senior management, around shared objectives.
Join Entain as a Senior Associate in AI Strategy & Operations, where you will play a pivotal role in shaping our AI initiatives to enhance operational efficiency and strategy implementation. This position offers you the opportunity to collaborate with cross-functional teams and leverage your expertise in artificial intelligence to drive impactful results.
Full-time|Hybrid|São Paulo, State of São Paulo, Brazil
Join our dynamic team at darwin-ai, where we’re on the lookout for a talented Creative Scriptwriter who excels in storytelling, pop culture, and crafting compelling narratives from complex technical concepts for social media platforms. If you possess a natural writing style that flows effortlessly, know how to captivate an audience, and are eager to create engaging stories about artificial intelligence in a fun and contemporary manner, we want you on board!Your Responsibilities: Develop original and creative scripts for short videos on Instagram, TikTok, and YouTube. Translate AI concepts into clear, entertaining, and relevant narratives for our B2B audience. Collaborate with creative and technical teams to ensure content resonates well with our viewers. Stay updated on trends, memes, viral languages, and digital culture.What We Expect from You: Proven experience in scriptwriting for audiovisual content on digital platforms. Ability to craft engaging stories that resonate with audiences. Genuine interest (or at least curiosity) in technology and artificial intelligence. A creative, proactive profile brimming with fresh ideas to contribute.Content Inspirations We Love: Example 1 Example 2 Example 3 If you write as you speak, have a creative flair, and are passionate about crafting purposeful scripts, send us your portfolio! Let’s work together to transform AI into content that truly connects.
Full-time|Remote|Remote — São Paulo, State of São Paulo, Brazil
At Intuition Machines, we harness the power of AI and machine learning to develop cutting-edge enterprise security solutions. Our innovative approach is evident in our flagship product, the hCaptcha security suite, which serves hundreds of millions of users globally. With a talented, geographically diverse team, we prioritize low overhead, small teams, and rapid iteration to deliver impactful results.As a Senior Site Reliability Engineer, you will be instrumental in engineering robust solutions that enhance system performance, availability, security, and cost-effectiveness. These non-functional attributes are not just goals; they are essential to our mission and our customers' satisfaction. You will engage with various layers of our extensive internet-scale architecture, including infrastructure, data, and application logic, and lead the development of effective solutions.Your Responsibilities:Engage with large-scale systems that handle millions of requests per second, providing seamless service to millions of users across diverse cloud platforms.Innovate solutions aimed at optimizing performance, availability, security, and cost-efficiency.Ensure high uptime and speed, while enhancing the productivity of our development teams through continuous improvement of system performance, quality, security, and customer engagement metrics.Rapidly source and assess improvement opportunities based on customer feedback, internal insights, and system metrics.Foster a creative environment where your contributions directly enhance customer value and experience.Qualifications:Proficiency in Kubernetes, with a strong focus on managing and optimizing containerized applications.Extensive experience in monitoring applications, infrastructure, and network environments.Solid background in software engineering with a focus on backend development in Kubernetes-based systems.Strong programming skills in languages such as Python, JavaScript, Go, C++, or Rust.Comprehensive understanding of networking concepts, proxies, and content delivery networks (e.g., Cloudflare).Experience with multi-cloud environments, including virtual networking, load balancing, and web application firewalls.Strong familiarity with CI/CD methodologies.Hands-on experience in developing and orchestrating high-scale, high-availability systems.A minimum of six years of practical experience in engineering, DevOps, or Site Reliability Engineering roles.Knowledge of distributed systems, including queue-first architectures and sharding principles.Demonstrated engineering acumen, encompassing requirement gathering, problem-solving, and effective decision-making.Preferred: Knowledge of security frameworks, attack vectors, botnets, and impact analysis. What We Offer:A fully remote position with flexible working hours.Collaboration with an inspiring, global team.Modern development workflows that promote frequent shipping of code.High impact: engage in significant projects that shape our products and services.
Join Enter AI as a Marketing Operations Specialist!At Enter, we are on a mission to position Brazil as a global leader in artificial intelligence.We combine human expertise and artificial intelligence to efficiently handle high-volume, critical tasks that still rely on manual processes. Our platform empowers major companies across Latin America to navigate complex workflows, starting from legal operations and extending throughout the enterprise. By leveraging AI, we create customized legal defenses at scale, enabling businesses to reduce costs and enhance their litigation success rates.Our team is comprised of top talents from prestigious institutions worldwide, including Harvard, UPenn, Stanford, ITA, USP, and Unicamp. Notable partners such as Meta, Itaú, Mercado Livre, Latam, Airbnb, Santander, iFood, and Nubank collaborate with us to efficiently manage critical processes. With over R$300M in capital raised and a valuation of R$2B, we are backed by leading investors like Sequoia and Founders Fund, who share our vision for the future.About the RoleAs the Marketing Operations Specialist, you will ensure the seamless operation of Enter's marketing initiatives. Your responsibilities will include overseeing logistics and execution for Enter’s events, from internal functions to large-scale gatherings, while supporting day-to-day marketing operations from start to finish.Key ResponsibilitiesSupport the event strategy for Enter, both internal and externalManage vendors (builders, agencies, venues) from briefing through deliveryCoordinate guest lists, communications, and event logisticsAssist with ad-hoc marketing operations requirements — material production, content organization, and other necessary tasksWhat We ValueOrganization: Ability to structure thoughts and projects with meticulous attention to detailAutonomy: Capable of driving projects independently from initiation to completion, setting priorities without constant oversightSense of Urgency: Operate at a high execution speed while maintaining quality and scalability
Jobgether is hiring an AI Technical Project Manager based in Brazil. This position centers on guiding AI-driven projects from the initial idea through to delivery. The role involves working closely with both technical and non-technical colleagues to keep projects on track and aligned with client needs. Role overview The AI Technical Project Manager oversees project timelines, coordinates tasks, and ensures clear communication across teams. The work includes managing priorities, resolving obstacles, and translating technical requirements for broader audiences. Key responsibilities Lead AI-focused projects from start to finish Collaborate with cross-functional teams Drive strategic initiatives for client solutions Facilitate communication between technical and non-technical stakeholders Requirements Experience in project management and AI technologies Strong organizational and communication skills Ability to manage multiple priorities and teams
About the Department: We are looking for a talented individual to lead the advancement of our voice URAs using Artificial Intelligence. This role will focus on optimizing customer service journeys, integrating systems, and continuously curating contact intents to enhance efficiency, quality, and customer experience. You will work closely with customer service operations, technology teams, telecom, and AI partners to ensure our voice solutions evolve strategically and yield optimal results. Your Daily Responsibilities: Identify and monitor opportunities for improvement in voice URA service flows. Design and implement AI solutions for contact automation and triage. Curate and calibrate contact intents for the URA. Optimize automated journeys and intelligent routing for queues and skills. Collaborate with technology, telecom teams, and AI vendors. Contribute to the development and enhancement of intelligent integrations with internal systems. Track URA performance metrics and propose continuous improvements. Test and validate new features and enhancements of implemented solutions. Assess impacts on operational efficiency and customer experience. Generate analyses and executive reports on results and growth opportunities. What We Expect from You: Experience in customer service operations and voice URA flows. Background in conversational AI or Voice Bots. Proven experience in optimizing service volume and customer journey. Knowledge of queue structures, skills, and call routing. Experience analyzing operational reports from contact centers.
Join Connectly as we revolutionize the future of conversational commerce in Latin America, focusing on WhatsApp. Our innovative approach eliminates the need for shoppers to download additional apps by providing a comprehensive engagement platform for retailers directly within WhatsApp, an app already familiar to everyone.As a VC-backed Series B startup, we boast a world-class team with experience from renowned companies like Facebook, Google, and Uber. Our remote-first culture fosters collaboration across borders, with offices located in San Francisco and Bogotá.
Handoff develops AI-powered tools tailored for the construction industry. The platform supports remodelers by automating estimates, streamlining daily operations, and delivering real-time cost analysis. Each month, over 10,000 users manage $6 billion in annual project volume through Handoff. The company has secured more than $25 million in funding from investors such as Y Combinator, Initialized, and Greycroft. The team operates remotely, with hubs in Austin, São Paulo, and Buenos Aires. Role overview The Construction Project Manager (AI) will lead quality assurance for automated construction drawing takeoffs, estimates, and material lists. This position ensures that takeoffs, scopes, and material or SKU selections align with each client’s standards, supporting accurate and timely work in the field. The client base includes large construction material suppliers and general contractors, mainly in residential construction, with plans to expand into commercial projects. This role also involves managing a team of estimators responsible for quality control of estimates. The position is ideal for someone with a strong background in residential construction and estimating, ready to transition from fieldwork to a product-focused environment where construction expertise informs the way AI interprets materials and workflows. Location São Paulo
Role overview Jobgether seeks an On-Call AI Video Editor based in Brazil. This position centers on producing short-form video ads for social media, using AI-powered editing tools to help drive growth and audience engagement. What you will do Edit and produce short-form video advertisements for platforms such as Meta, TikTok, and YouTube. Turn creative concepts into compelling ad content that captures attention and encourages viewers to take action. Work with AI-driven production tools to streamline editing and improve the final product. Collaborate closely with marketing and growth teams to quickly iterate and refine ad creatives. Use data and performance metrics to guide creative choices and optimize content for conversions. Handle a high volume of projects, adjusting quickly to shifting priorities and feedback. Who thrives in this role Editors with a background in social media ad production and a strong creative approach. People who are comfortable working on-call and can respond to urgent project needs. Professionals who enjoy combining creative video work with marketing objectives. Those who adapt easily to changing requirements and can produce high-quality output at a steady pace.
Full-time|Remote|Remote — São Paulo, State of São Paulo, Brazil
Intuition Machines leverages cutting-edge AI and machine learning technologies to develop innovative enterprise security products that safeguard millions of users globally. Our flagship product, the hCaptcha security suite, is a testament to our commitment to creating effective security solutions with minimal overhead, a lean team structure, and rapid iteration cycles.As a Senior Technical Support Engineer, you will engage closely with clients and our engineering teams to address intricate technical issues, enhance product reliability, and ensure an exceptional customer experience. Your background in software development will empower you to investigate issues deeply and contribute directly to the enhancement of our products.Key Responsibilities:Troubleshoot complex backend and frontend challenges for enterprise clients.Collaborate with Engineering, Product, and Security teams to identify root causes and implement effective solutions.Enhance product quality by debugging, prototyping, or developing small automation tools.Utilize knowledge in web security, bot mitigation, and fraud prevention to assist customers effectively.Provide mentorship to fellow support engineers and refine team processes and documentation.Establish strong customer relationships through clear and proactive communication.Qualifications:5+ years of experience in software engineering or technical support with robust coding skills.Proficiency in Python, JavaScript, HTML, and CSS.Experience with distributed systems, web security, and large-scale applications.Strong analytical and problem-solving abilities with meticulous attention to detail.Excellent communication and collaboration skills.Familiarity with support systems, ticketing tools, or automation/scripting is a plus.Desirable Skills:Experience working with Grafana, SQL, ClickHouse, Redash, or supporting enterprise clients.What We Offer:Fully remote role with flexible working hours.An inspiring team of professionals located worldwide.Modern development and deployment workflows: ship early, ship often.High impact work with a large user base, satisfied customers, and significant growth opportunities in cutting-edge R&D.A flat organizational structure allowing direct interaction with customer teams.We are dedicated to fostering an inclusive environment and celebrating equal opportunities for all team members.Join us in revolutionizing cybersecurity, user privacy, and machine learning!Please note that all roles require pre-employment screening, including third-party verification of work history, education, and identity, along with a final in-person interview and identity verification step conducted in your country of residence.
Join the Innovative Data Science Team at TRACTIAN At TRACTIAN, our Data Science team is dedicated to harnessing the power of extensive industrial data to uncover meaningful insights. We employ state-of-the-art statistical techniques, algorithms, and advanced data visualization methods to convert raw data into strategic intelligence that informs engineering decisions, product innovation, and operational strategies. Our team continuously refines predictive models, uncovers emerging trends, and delivers data-driven solutions that significantly improve operational efficiency and product quality. Your Role We are seeking a skilled Data Engineer with a solid engineering background and proficiency in AI workflows to join our Data Foundry team. In this pivotal position, you will serve as the key connector between our model training and data annotation teams. Your primary responsibility will be to develop the pipelines and infrastructure that transform unstructured, complex data into high-quality datasets optimized for AI applications.