Grupo Marista

Financial Planning and Analysis

• Project Management: Lead and support end-to-end projects to implement and integrate new payment methods (Pix, digital wallets, new acquirers) into e-commerce, systems and digital platforms.
• Fraud Prevention: Monitor daily transactions, perform tuning and configuration of fraud rule engines, and analyze suspicious behavior patterns across digital channels.
• KPI Management: Develop and track critical performance indicators such as approval and decline rates and chargeback rates (fraud and commercial dispute).
• Partner Relationship: Act as the technical and business interface with payment gateways, acquirers, sub-acquirers and fraud prevention vendors.
• Chargeback Handling: Manage dispute and chargeback recovery processes, identifying opportunities to improve the dispute flow.
• Support for Reconciliation (B2C): Work with Accounts Receivable to ensure refunds/returns generated by chargebacks are complete and compliant with company policies.
• Audit and Accounting Support: Directly support accounting and external/internal audits, and perform calculations for loss provisions and realized losses.
• Monthly Close and Executive Reporting: Prepare detailed reports and controls for the monthly financial close, consolidate data and structure results for presentation to coordination and executive leadership.
• Customer Support Escalation: Serve as the escalation point for customer service teams, providing prompt support and resolving consumer questions related to declines, refunds and payment processes.

Senior Financial Analyst – Fraud Prevention, Payment Methods

IT Support

• Act as a strategic link between business areas, IT and leadership, influencing decisions and ensuring alignment between organizational objectives and technological capabilities;
• Lead the definition and evolution of strategic technical requirements, ensuring non-functional decisions support scalability, security and alignment with corporate direction;
• Orchestrate the prioritization and governance of the backlog and technology roadmap, guiding architecture initiatives that increase capacity, maturity and innovation;
• Assess structural risks across the application ecosystem and promote strategic mitigation actions that strengthen resilience, compliance and adherence to the reference architecture;
• Architecture governance: manage and govern the application portfolio in LeanIX, maintaining and evolving documentation of integrations and system specifics;
• Establish best practices and architecture standards to drive consistency and efficiency in technology solutions;
• Lead the vision and adoption of enterprise AI agents, integrating artificial intelligence as a strategic component of the digital ecosystem;
• Propose future technological architectures based on multi-cloud and hybrid environments, advising on platform choices and modernization decisions.

IT Architecture Specialist – Enterprise Architecture Focus

Security Engineer

• Lead and manage the information security team, including setting goals, evaluating performance, and supporting professional development of team members.
• Lead the Data Privacy agenda.
• Develop and implement the company's information security strategy, aligned with business objectives and industry best practices.
• Manage information security across all business segments of Grupo Marista.
• Create and maintain security policies, procedures, and controls to protect the company's information assets, including data, systems, networks, and infrastructure.
• Manage information security risks by identifying, assessing, and mitigating threats and vulnerabilities.
• Ensure rapid detection and response to security incidents, minimizing impact and ensuring business continuity.
• Conduct post-incident analysis to identify improvements and prevent recurrence.
• Ensure compliance with applicable regulations and legislation, such as the Brazilian General Data Protection Law (LGPD).
• Develop and implement employee awareness and training programs on information security.
• Manage the information security budget, ensuring efficient use of resources.
• Conduct security audits and penetration tests to identify and remediate vulnerabilities.
• Stay up to date with emerging trends and threats in information security.
• Promote the continuous development of the team through training and professional certifications.

Information Security Manager

• Garantir a priorização das atividades de segurança com base em risco
• Atuar na identificação, avaliação e acompanhamento de riscos de segurança
• Assegurar a aplicação prática de políticas, normas e controles de segurança
• Acompanhar indicadores (KPIs/KRIs), riscos e não conformidades
• Apoiar auditorias, avaliações de conformidade e requisitos regulatórios (LGPD, NIST CSF, etc.)
• Direcionar a operação de segurança, garantindo organização e priorização das atividades
• Atuar na gestão do serviço do SOC, acompanhando a qualidade das entregas e direcionando ajustes quando necessário
• Garantir o tratamento adequado de incidentes críticos e situações de crise
• Acompanhar a tratativa de vulnerabilidades com base em risco
• Direcionar a equipe de SecOps com base nas prioridades definidas, removendo impedimentos para execução
• Atuar como ponto focal na comunicação de incidentes relevantes para gestão e áreas de negócio
• Definir e organizar backlog de segurança com base em risco
• Garantir execução das iniciativas prioritárias
• Atuar como ponto focal para entrada de novas demandas e gestão de projetos de segurança
• Acompanhar evolução das entregas e resultados
• Atuar em conjunto com áreas de TI e negócio para viabilizar iniciativas de segurança
• Garantir que a segurança esteja alinhada às necessidades operacionais (educação, saúde e corporativo)
• Apoiar decisões que envolvam risco, impacto operacional e continuidade

Coordenador de Segurança da Informação

Architect

• Experience in Solution Architecture, system development and integration (microservices)
• Strong communication and presentation skills to serve our internal customers
• Experience in systems development projects, interacting with multiple teams and vendors
• Experience designing solution architectures and implementing integration layers oriented to microservices and data
• Experience evaluating vendors and effort vs. cost scenarios
• Experience with architectural patterns (microservices, strangler, hexagonal)
• Familiarity with programming best practices (SOLID, TDD, DDD, Clean Code)
• Experience with package/build managers (Maven, npm, Gradle)
• Technical knowledge of microservices-based architecture, Kubernetes, Java, Spring Boot, API Gateway
• Back-end development experience implementing solutions in Python, Java, and JavaScript
• Knowledge of cloud computing (AWS, Azure, GCP)
• Experience with SQL, NoSQL, and vector databases
• Knowledge of: Azure APIM, Azure AD B2C, Azure Service Bus, Azure Event Hub, Azure AKS, Azure DevOps Pipelines, Microsoft Power Platform and RPA solutions