Ribamar S.
Senior Software Engineer
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Ribamar S., a Machine Learning Engineer and Full-Stack Developer, brings over eight years of experience in building scalable backend systems and integrating LLM-powered solutions into production environments. As a Senior Software Engineer, he has expertise in designing AI agents, RAG pipelines, and data-driven systems using Python, Node.js, and .NET Core. At TopFlight, Ribamar leads software engineering efforts in developing B2B SaaS applications utilizing React, TypeScript, Next.js, and Node.js. He excels in creating secure REST and GraphQL APIs while enhancing application performance. In his previous roles at ITC Management Group and Checlabs, Ribamar crafted AI agents and RAG systems through platforms like OpenAI API, LangChain, and more. His comprehensive skill set extends to AWS, GCP, and DevOps tools like Docker, Kubernetes, Jenkins, and CI/CD pipelines, all which help him in delivering secure, efficient, and high-performance solutions. Ribamar is a graduate in Computer Science from the Federal University of Rio Grande do Sul.
Experience
Lead Software Engineer
TopFlight · 2024 — PresentDeveloped and scaled B2B SaaS applications utilizing React, TypeScript, Next.js, Node.js, and PostgreSQL, catering to enterprise clients and supporting high-volume business processes. Created secure REST and GraphQL APIs while enhancing backend services for better application performance. Designed a platform for customer management, incorporating RBAC and workflow automation. Introduced Redux Toolkit for state management and crafted reusable component architectures to boost maintainability and efficiency. Developed a scoring engine to automate analyses of cost and compliance, streamlining business operations. Enhanced performance with techniques such as query optimization and frontend rendering improvements. Spearheaded code reviews and provided mentorship to engineers, collaborating with cross-functional teams for scalable solutions.Senior Software Engineer
ITC Management Group · 2023 — 2024Engineered AI agents and RAG systems using OpenAI API, LangChain, LlamaIndex, and vector databases for automating user interactions and business workflows. Drove machine learning projects with Databricks, PyTorch, TensorFlow, and Scikit-learn, yielding predictive analytics and AI-powered solutions. Developed scalable backend services using Python, Flask, Node.js, and REST APIs, facilitating high-volume workloads. Created big data pipelines utilizing PySpark, Apache Spark, and Hadoop, enhancing efficiency in data processing. Employed Docker, Kubernetes, AWS, and GCP for multi-cloud infrastructure, supporting cloud-native microservices. Achieved a reduction in deployment time through CI/CD automation and integrated security features such as OAuth 2.0 and JWT, improving system reliability.Software Engineer
Checlabs · 2019 — 2023Constructed and scaled enterprise web applications featuring React, TypeScript, Node.js, and PostgreSQL to ensure secure and high-performance user interactions. Developed customer management solutions emphasizing RBAC and workflow automation to support extensive business operations. Engineered secure REST and GraphQL APIs for smooth frontend and backend integration. Created reusable component libraries while implementing state management with Redux Toolkit for development efficiency. Built backend services using Node.js, .NET Core, and Python following a microservices architecture. Improved application performance through query optimization and various caching strategies.
Skills & Expertise
Education
- Bachelor of Computer ScienceFederal University of Rio Grande do Sul · 2017 — 2019