Thallis Andre Faria Moreira

Senior Software Engineer, promoted to Tech Lead

Remote, Brazil · Brazilian B2B software company (~60 employees) building legal tech, edtech, and Business Intelligence products.

• Promoted to Tech Lead within ~12 months; lead 8+ engineers across 5+ products by standardizing architectural patterns, translating ambiguous business requirements into actionable technical roadmaps, and unblocking delivery through solution reviews and technical prioritization.
• Architected and led a Generative AI/RAG platform for the legal sector, enabling natural-language search and answers over thousands of complex documents using LLMs, embeddings, vector search, and retrieval pipelines, cutting document research time from hours to minutes.
• Architected a multi-tenant identity microservice (auth/SSO) serving 10K+ users across 5+ applications, establishing the company's centralized authentication standard and eliminating fragmented auth implementations.
• Leading the evolution of a file management and processing microservice that performs large-scale extraction, OCR, indexing, vectorization, and semantic search over 100K+ files (PDFs, scanned documents, images, spreadsheets), the data foundation powering the company's RAG and semantic-search products.
• Designed the ms-dashboards microservice from scratch using Node.js, clean architecture, and modular REST APIs, targeting scalability for 10,000+ concurrent users.
• Reduced monthly AWS cloud spend by ~25% by right-sizing ECS/Fargate services, adopting Fargate Spot for asynchronous document processing, tuning Lambda memory allocation, and automating S3 lifecycle policies, while preserving high availability.

Senior Software Engineer

Remote, Brazil · Global IT consultancy; client engagement at Itaú Unibanco, the largest bank in Latin America.

• Migrated critical capabilities of strategic corporate credit products (Conta Garantida and Giro) from legacy monoliths to microservices using Java, Spring Boot, Angular, and AWS, supporting a multi-billion-real credit portfolio and tens of thousands of corporate clients.
• Reduced deployment lead time from hours to minutes by implementing CI/CD pipelines with GitHub Actions, automating build, test, and deploy of containerized applications on AWS, improving delivery predictability for the squad.
• Raised the team's technical quality bar through API contract definition, code reviews, architecture discussions, automated testing, SOLID principles, and integration standardization.

Junior Software Developer

Goiânia, Brazil · Financial management software for Brazilian micro-credit institutions (Empresas Simples de Crédito).

• Engineered payment modules, external API integrations, and Angular/Node.js web interfaces for a micro-credit lending platform, streamlining the end-to-end transaction lifecycle for lending operations while hardening critical components with TDD.

Software Developer Trainee

Goiânia, Brazil · Student-run software consultancy at the Federal University of Goiás.

• Delivered client-facing web and e-commerce applications using React.js, React Native, and REST APIs, while leading internal Docker and React training for 10+ members, standardizing engineering practices across the team.