Mercafacil

• You will bring statistical rigor to business decisions. • Within the BI team, your mission is to go beyond descriptive analysis by applying statistical and machine learning models to find patterns, validate hypotheses, and generate forecasts that guide real strategies. • Day-to-day, you will model complex problems with Python, work with large volumes of data in ClickHouse and BigQuery, and collaborate with product and operations teams to ensure the models deliver real value. • Conduct statistical analyses to answer business questions: hypothesis testing, correlation analysis, segmentation, and predictive modeling; • Perform exploratory data analysis (EDA) to understand the data before modeling, identifying patterns and inconsistencies; • Write complex SQL queries in ClickHouse and BigQuery to extract and prepare data for analysis and modeling; • Use Python for data manipulation, exploratory analyses, and model prototyping; • Communicate results and insights clearly to business teams—translating statistics into decisions; • Collaborate with the BI team to define metrics, data quality standards, and analytical best practices; • Monitor models in production, tracking performance and proposing continuous improvements;

• Your mission will be to ensure the quality of deliverables for a high-performance agile team, working across the entire cycle, from requirements refinement to regression. • You will plan, execute, and automate web and mobile tests, preventing defects and ensuring consistent deliveries. • You are expected to work autonomously in defining and executing tests for your tasks, with occasional supervision from leadership. • The challenge: anticipate and prevent defects in a continuously evolving product with a large user base, where each failure has a real impact on the customer's daily life. • Analyze requirements, stories, and layouts during refinement, identifying ambiguities, inconsistencies, and gaps before development (defect prevention); • Plan detailed, clear, and well-structured test scenarios; • Prepare and execute functional, exploratory, regression, and usability tests; • Log, provide evidence for, and track bug fixes with the development team; • Incorporate AI tools into the QA daily workflow to enhance delivery, while maintaining critical judgment over the results generated; • Evolve and maintain the web and mobile automated test suite (Cypress and Maestro); • Use and analyze SQL and NoSQL databases (e.g., ClickHouse and MongoDB) to validate tests; • Estimate, prioritize, and plan your activities in an agile environment; • Support the creation and updating of internal documentation; • Collaborate and maintain clear, constant communication with the team.

• As a mid-level backend developer, you will be responsible for developing new features and evolving the current product in projects related to our e-commerce. • Your role includes working with the team and the Tech Lead to design robust architectures and implement development best practices. • You will also participate in defining technical standards, supporting less experienced developers and ensuring the quality of code in production. • You may contribute to our open-source repositories, attend technology events and write technical articles about your challenges. • Work on the development and maintenance of backend systems (e.g., Python with Django, Node.js with NestJS, and Golang). • Collaborate with the team to define and implement scalable, secure software architectures. • Participate in strategic decisions for evolving systems toward microservices. • Review code and support other developers. • Automate and optimize CI/CD processes and deployments in cloud environments. • Implement automated tests and monitoring processes. • Collaborate with other teams (frontend, DevOps, QA) to ensure system integration and quality.

• Estruturar a função de Product Marketing onde ainda não há processo consolidado, definindo metodologia, rituais e métricas. • Traduzir o comportamento de compra do varejo alimentar e dos consumidores em posicionamento e narrativa competitiva. • Liderar lançamentos e réguas de adoção que aumentem o uso real das soluções em clientes SMB. • Liderar revisões de pricing e empacotamento de planos por porte de supermercado, com impacto mensurável em receita. • Criar alinhamento entre POs, Comercial e CS sobre ICP, mensagens e diferenciais, levantando os argumentos para aceitarmos ou não clientes fora do ICP. • Instrumentar e reportar o impacto das iniciativas de Product Marketing em adoção, ativação, receita e retenção.

• You will bring statistical rigor to business decisions. • As part of the BI team, your mission is to go beyond descriptive analysis by applying statistical and machine learning models to find patterns, validate hypotheses, and generate forecasts that guide real strategies. • Model complex problems using Python. • Work with large volumes of data in ClickHouse and BigQuery. • Collaborate with product and operations teams to ensure models deliver real value. • Conduct statistical analyses to answer business questions: hypothesis testing, correlation analysis, segmentation, and predictive modeling. • Perform exploratory data analysis (EDA) to understand the data before modeling, identifying patterns and inconsistencies. • Write complex SQL queries in ClickHouse and BigQuery to extract and prepare data for analysis and modeling. • Use Python for data manipulation, exploratory analysis, and model prototyping. • Communicate results and insights clearly to business teams — translating statistics into decisions. • Collaborate with the BI team to define metrics, ensure data quality, and establish analytical best practices. • Monitor models in production, tracking performance and proposing continuous improvements.

• The Implementation Project Analyst must have comprehensive knowledge of Mercafacil’s products, processes, and implementation phases, and possess strong client relationship skills to act as the focal point for the implementation projects under their responsibility. They will lead the entire process and monitor all stages with clients, partners, and other stakeholders using formal techniques and project management practices, detailing and documenting the entire process and guiding the client toward post-implementation success, based on the client’s needs, product capabilities, and the contract between Mercafacil and the client. • It is essential to recognize that this role will be the client’s primary point of contact and main reference after commercial closing; ensuring that the client’s first experience is welcoming, educational, objective, clear, and human is fundamental to efficiently completing this phase within agreed timelines and expectations. • Act as the focal point for the entire implementation process by managing stages and deadlines, coordinating and connecting all parties involved, including the client, partners, and Mercafacil’s internal teams. Responsibilities include: • Preparing detailed project schedules, allocating resources according to availability; • Conducting alignment meetings with the client to understand their needs, expectations, and particularities; • Ensuring all internal and external stakeholders have clarity on project scope, timelines, and responsibilities; • Performing regular checkpoints with clients and internal teams to align status, clarify doubts, and adjust actions when necessary. • Continuously update and monitor all internal project management tools and disseminate relevant information clearly and objectively, keeping all stakeholders informed about project progress and potential blockers, and acting proactively to resolve them if needed; • Actively participate in the entire process, starting from validating project feasibility with the sales team, mapping the operation and how Mercafacil’s solutions will add value to the client’s daily operations, supporting technical configuration steps, overseeing testing and validation, and handing the client over to the CS and Support teams; • Document and share important information such as operational maps, customization details, strategic client contacts, and other relevant data with other areas of Mercafacil, including CS and Support; • Assist the client during the process by answering questions and advising on solution usability and requirements for correct operation, such as the need for populated data in the platform, types of integrations and their limitations, communication types (visual via assets, through campaigns), business rules, etc.; • Mediate situations involving misunderstandings, conflicts, or unforeseen events, steering the project strategically toward the solution that best meets the client’s needs, ensuring project success and client satisfaction; • Share reports and perform regular follow-ups with the client and internal teams, ensuring transparency and accessibility of project status.

• Lead the development and maintenance of backend systems (e.g., Python with Django, Node.js with NestJS, and Golang). • Define and implement scalable, secure software architectures. • Participate in strategic decisions for migrating and evolving systems to microservices. • Review code, provide technical guidance, and mentor other developers. • Automate and optimize CI/CD processes and deployments in cloud environments. • Implement automated testing and monitoring processes. • Collaborate with other teams (frontend, DevOps, QA) to ensure system integration and quality.

• Manage infrastructure on Google Cloud Platform (GCP) • Evolve infrastructure using Terraform • Develop and improve pipelines using Jenkins, Cloud Build and GitHub Actions • Maintain the monitoring stack (Grafana) • Maintain Kubernetes clusters (GKE) • Manage Cloudflare services - ZTNA, DNS, Workers and Pages • Administer clustered SQL and NoSQL database servers and services

• Prestar suporte eficiente aos usuários, atendendo chamados e solicitações relacionados a falhas em sistemas. • Resolver problemas simples de hardware e software, como instalação de programas, configuração de dispositivos e diagnóstico de erros comuns. • Identificar quando um problema requer intervenção de um nível superior e seguir os procedimentos e protocolos estabelecidos para escalonamento e resolução, garantindo a continuidade dos serviços e o bom funcionamento dos sistemas. • Atendimento de chamados de Help desk de primeiro nível via Chat, WhatsApp e e-mail; • Realizar acesso remoto em momentos de necessidade com o cliente; • Realizar análises de tickets e dar a tratativa necessária até que o mesmo seja concluído; • Acompanhamento do cumprimento de SLA; • Instalação e configuração de softwares (Ex: VPN, Friday); • Ler documentação e saber procurar nas bases de conhecimento; • Atender no modelo de plantão;

• Develop microservices in Node.js using GraphQL and TypeScript • Build highly optimized SQL and NoSQL queries • Actively contribute to backend architecture design • Work directly with cloud systems and CI/CD practices • Implement software tests, including unit and integration tests • Research, evaluate, and implement new backend technologies and tools, staying up to date with industry trends and innovations.