[Job-00024] Senior Fullstack Engineer, Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

• →Rebuild and enhance the web application based on the Design team's mockups, using Next.js, React, and TypeScript.
• →Develop user-facing features, including PDF grounding views that help users review and validate information extracted from documents.
• →Design, develop, and maintain versioned APIs using Python and Django REST Framework.
• →Build and maintain integrations between Pegasus, SAP S/4HANA, and Ivalua, ensuring reliable data exchange across systems.
• →Scale asynchronous batch processing with Celery to support workloads involving up to 10,000 PDF documents.
• →Work with PostgreSQL to support application data management and persistence.
• →Implement user metrics to provide insights into application usage and support data-driven improvements.
• →Ensure application quality through automated testing, code reviews, documentation, and engineering best practices.
• →Identify and resolve performance bottlenecks across the application, APIs, integrations, and background processing workflows.
• →Collaborate with design, product, and engineering teams to deliver scalable solutions aligned with business needs.

• Strong professional experience in full-stack software development.
• Hands-on experience with Next.js, React, and TypeScript.
• Strong proficiency in Python and experience developing APIs with Django REST Framework.
• Solid knowledge of PostgreSQL, including data modeling and database interactions.
• Experience building and maintaining RESTful APIs and integrating external enterprise systems.
• Experience with asynchronous task processing and background jobs, particularly Celery.
• Understanding of scalable application architecture, performance optimization, and reliable data processing.
• Experience translating design mockups into responsive, user-friendly interfaces.
• Knowledge of software testing, version control, code reviews, and maintainable coding practices.
• Strong analytical and problem-solving skills.
• Ability to collaborate effectively with cross-functional teams and take ownership of technical solutions.

• Experience integrating with SAP S/4HANA and procurement or enterprise platforms such as Ivalua.
• Experience processing large volumes of documents, particularly PDFs.
• Familiarity with document preview, annotation, grounding, or validation interfaces.
• Experience implementing product analytics, user metrics, and usage tracking.
• Knowledge of cloud-based deployments, CI/CD pipelines, and application observability.
• Experience improving the performance and reliability of distributed processing workflows.