Vagas remotas para brasileiros nos Estados Unidos e Europa

Laravel and React Developer building applications for Bluelight consultancy

UX/UI Designer creating digital products and prototypes at Igma (Brazilian studio)

Principal CDN Support Engineer leading technical support for bunny.net's global CDN.

Who we are:CloudWalk is a fintech company reimagining the future of financial services. We are building intelligent infrastructure powered by AI, blockchain, and thoughtful design. Our products serve millions of entrepreneurs across Brazil and the US every day, helping them grow with tools that are fast, fair, and built for how business actually works. Learn more at cloudwalk.io .Who We’re Looking For:We're looking for an MLOps Engineer to help us build ML infrastructure that scales dynamically from dozens to thousands of GPUs, reliably and efficiently.You’ll be part of the AI R&D team, working closely with researchers and engineers to design systems for training, evaluating, and monitoring machine learning models at scale. This isn’t a research position, but your work will directly support researchers running large-scale experiments. You’ll help build fault-tolerant pipelines that preserve progress even when things break (like OOMs), and ensure model development flows can iterate with confidence.Our current focus is on large-scale, non-interactive workloads: batch training, dataset-wide model evaluation, and metric-driven improvement loops. That said, the infrastructure you build may later support interactive tools and APIs.You'll be contributing to system design under the guidance of senior ML researchers and infra engineers. Your role is to bring modern tooling and practical engineering to a demanding, GPU-heavy environment.Responsibilities: * Build and maintain ML pipelines for data processing, training, evaluation, and model deployment. * Orchestrate batch and training jobs in Kubernetes, handling retries, failures, and resource constraints. * Design systems that scale dynamically from small GPU jobs to thousands of GPUs on-demand. * Collaborate with researchers to productionize their experiments into reproducible, robust workflows. * Implement model serving endpoints (REST/gRPC) and integrate with internal tooling. * Set up monitoring, logging, and KPI tracking for ML pipelines and compute jobs. * Automate CI/CD and infra provisioning for ML workloads. * Manage experiment tracking, model versioning, and metadata with tools like MLflow or W&B. * Support model serving infrastructure that may be used by internal UIs or tools in the future. Required Skills: * Kubernetes: Strong experience orchestrating jobs, not just deploying services. You should be confident in managing training workloads, GPU scheduling, job retries, and Helm-based deployments. * Python: Comfortable writing scripts and services that glue systems together. You don’t need to be a full-stack dev, but notebooks won’t cut it. Automation is the word here. * ML Workflows: Familiarity with data preprocessing, training, evaluation, and deployment pipelines. * Model Serving: Ability to expose models via FastAPI, TorchServe, or equivalent serving stacks. * Linux: Strong CLI skills, you should know your way around debugging compute-heavy jobs. * Experience with ML metadata systems (MLflow, W&B, Neptune). * Know how to work side by side with AI assistants and agents. * Ability to communicate and debate in English and Portuguese. Nice-to-have skills: * Experience with orchestration tools (Airflow, Argo Workflows, Prefect). * Fluency in cloud environments (GCP, AWS, Azure). * Ability to write lean and customized Dockerfiles and Helm charts that run smoothly. * Exposure to distributed training frameworks (Ray, Horovod, Dask). * Deep understanding of GPU scheduling and tuning in Kubernetes environments. * Experience supporting LLM workloads or inference systems powering internal tools. What You’ll Need to Succeed: * Curiosity about how things fail and how to make them not. * Strong debugging chops, especially in distributed, resource-constrained environments. * A practical mindset, you know when to patch and when to fix. * Ability to collaborate across ML, research, and backend teams. * Ownership: you care about keeping systems reliable, scalable, and clean. Diversity and inclusion:We believe in social inclusion, respect, and appreciation of all people. We promote a welcoming work environment, where each CloudWalker can be authentic, regardless of gender, ethnicity, race, religion, sexuality, mobility, disability, or education.

Client Success Manager managing digital marketing for LatAm remote talent platform

Freelance Graphic Designer for natural food tech company creating D2C marketing assets

Do you have a passion for driving measurable growth, transformation, and approach your work with boundless curiosity? Join our global digital marketing team and find yourself among highly engaged, like minded professionals. Grow your skills, and your career, as you play a valuable part in rocketing WEX to new heights. As a Marketing Automation Specialist , you will work with teams across the business to design, analyze and optimize multi-channel marketing journeys in Salesforce Marketing Cloud - nurturing leads, driving cross-sell and product utilization, and delivering exceptional customer experiences.Duties And ResponsibilitiesMarketing Automation/Development and Deployment:ResponsibilitiesServe as a dedicated resource and primary point of contact for WEX Mobility campaign production/deployment with responsibilities in the following areas: * Work with Revenue Marketing leads and LOB stakeholders to design automated customer experiences and ad hoc email, SMS, and web personalization campaigns * Set-up and configure campaigns in Salesforce Marketing Cloud to support the Consumer Pathways personalization program * Leverage copy/designs created by the Content team to execute campaigns across various WEX business units * Collaborate with cross-functional teams to understand segmentation, personalization and dynamic content needs within email journeys * Maintain Salesforce Marketing Cloud campaigns to keep content up to date (i.e. urls, documents, cloud pages, etc.) while maximizing performance and efficiency * Assist with A/B testing and multivariate testing to optimize email campaigns for engagement and conversion * Monitor email deliverability and implement strategies to maintain a high sender reputation Performance AnalysisServe as a dedicated resource and primary point of contact for analyzing the performance of all Consumer Pathways campaigns with responsibilities in the following areas: * Leverage Tableau dashboard, Salesforce and other tools to analyze campaign performance * Assess campaigns in terms of overall engagement, financial results, user demographics, trends, success metrics and more * Provide insights/recommendations for campaign improvement across channels * Develop periodic reports on campaign performance, insights and recommendations for various internal and external stakeholder audiences QualificationsRequired Skills: * Salesforce Marketing Cloud expertise (i.e. Marketing Cloud - Email Studio, Journey Builder; Mobile Studio; MCP - Segments, Web Templates and Campaigns) * 5+ years experience delivering highly-effective digital/email marketing campaigns * Strong analytical skills and the ability to interpret data to make informed decisions * Solid experience with performance reporting/success measurement * HTML/CSS * AMPscript * Excellent interpersonal skills, with the ability to conceptualize and communicate highly detailed technical concepts to technical and non-technical audiences * Ability to take initiative and lead, motivate, and oversee teams to produce results * Team player attitude and ability to work in a high energy business environment Preferred (but Not Required) Skills * Salesforce Certifications * Basic Javascript * SQL * Experience with Salesforce Mobile Studio and Salesforce Personalization a plus * Familiarity with health benefits and Health Savings Accounts (HSAs) in particular * Experience in consumer healthcare lifecycle marketing a plus

PostgreSQL developer building database-side logic for CI&T's tech transformation.

Operations Clerk coordinating suppliers and shipping for e-commerce tire retailer

IT Security Engineer leading endpoint security and patching at fintech CMG