The FullStack Developer III is responsible for leading the technical team, defining standards and system architectures that support the company's long-term strategy. This professional plays a crucial role in strategic technology decisions, ensuring solutions are robust, scalable, and secure by using industry best practices. The Dev III leads modernization initiatives, guides the team in adopting new technologies, and drives digital transformation through innovative DevOps and DevSecOps practices. This professional must be able to make critical decisions in high-pressure environments and inspire their team to achieve technical excellence and innovation. **Responsibilities:** * Provide technical guidance to the entire team, establishing quality, security, and efficiency standards, as well as leading complex development initiatives. * Design and lead the implementation of robust and scalable architectures aligned with business objectives, and define system architectures based on microservices and cloud computing. * Evaluate, propose, and implement cutting-edge technologies such as AI, infrastructure automation, RPA, among others, to improve operational efficiency and the development lifecycle. * Lead legacy system modernization projects, applying technologies such as containers (Docker, Kubernetes) and microservices architectures, and coordinate migrations to cloud environments. * Ensure software is optimized for high performance and scalability, promoting periodic reviews and continuous optimizations in the architecture. * Conduct code reviews and define continuous improvement processes, establishing coding standards and promoting excellence in code quality. * Implement security practices throughout the development lifecycle, introducing DevSecOps concepts and ensuring solutions are protected against threats. * Act as a mentor for junior and mid-level developers, promoting the team's technical and behavioral growth. * Collaborate with product managers and stakeholders to define priorities and align the technical roadmap with the organization’s long-term strategic goals. * Coordinate the implementation of CI/CD pipelines and infrastructure automation using tools such as Terraform, Ansible, and Jenkins. * Implement and configure monitoring and logging tools (Prometheus, Grafana, ELK Stack), ensuring observability of all services and systems. * Work with cross-functional teams (data, product, infrastructure, and engineering, among others) to ensure solutions are integrated and optimized across all business aspects. **Requirements:** * Solid experience in software development and strong knowledge of system design and microservices architecture. * Proficiency in programming languages such as JavaScript, TypeScript, Node.js, Java, .Net, and front\-end frameworks like React or Angular or others. * Experience with AWS, Azure, or Google Cloud, Oracle OCI, and DevOps practices including CI/CD pipelines and container management. * Experience with DevSecOps and software security practices, integrating security into all stages of development. * Experience with automation tools such as Terraform and/or Ansible (desirable). * Knowledge of monitoring and logging tools such as Prometheus, Grafana, DataDog, and ELK Stack to ensure real-time system observability and monitoring. * Familiarity with project management tools such as Jira or Azure DevOps, and agile methodologies (Scrum, Kanban). * Knowledge of programming languages such as JavaScript, TypeScript, Node.js, .NET Framework/Core, Asp Core/Classic, and frameworks NextJS, NestJS, front\-end such as React, Angular, and similar. **Benefits:** Meal allowance (Caju Card) Health insurance with co-payment Gympass SESC partnership Day Off \+ company gift OnHappy