Diego Moraes

Software engineering consultancy focused on AI, data platforms, analytics, and modern digital products. Helps companies design, build, and scale reliable systems that turn data into better decisions, stronger customer experiences, and measurable business outcomes, across RAG systems, LLM assistants, OpenAI, LlamaIndex, data engineering, ETL/ELT pipelines, BigQuery, Snowflake, Redshift, BI, e-commerce analytics, Node.js, TypeScript, Python, Java, cloud-native architectures, APIs, integrations, GCP, AWS, Docker, CI/CD, observability, performance, and scalability. Recent work includes RAG-based Slack knowledge assistants, e-commerce analytics and attribution platforms, data warehouse modernization, enterprise integrations, automation, tracking diagnostics, and customer reporting platforms.

Engaged via OnTimeStack (B2B consulting).

• AI Knowledge Platform: Designed and delivered a production-ready RAG-based Slack assistant in under one month using LlamaIndex, OpenAI, Vertex AI vector search, semantic retrieval, source ingestion, query rewriting, reranking, citations, and confidence scoring to help teams retrieve trusted product and support knowledge faster.
• Data Platform Modernization: Led migration of Terpli analytics pipelines from Amazon Redshift to Google BigQuery, preserving legacy business logic while improving maintainability, observability, warehouse reliability, and readiness for downstream analytics and reporting.
• Post-M&A Revenue Continuity: Ensuring stability of the Terpli plugin throughout post-acquisition technology integration, mitigating operational risks and maintaining user base retention.

Engaged via OnTimeStack (B2B consulting).

• Strategic Leadership and Ownership: Defined the technical vision for Frontend and Analytics, balancing rapid feature delivery with long-term architectural sustainability.
• Executive Analytics & ROI Infrastructure: Designed SQL/BI/Node.js ETL pipelines and analytics models that powered executive dashboards, conversion reporting, retention analysis, and B2B ROI proof for e-commerce clients.
• B2B Retention Metrics Protection: Ensured integrity of e-commerce event tracking — a vital metric for conversion calculations that underpins the value proposition for B2B clients.

Engaged via OnTimeStack (B2B consulting).

• Platform Scalability and Migration: Architected the transition to a unified Flutter-based web platform, significantly reducing maintenance overhead and accelerating feature parity.
• Non-Intrusive Tracking Engineering: Developed cross-platform tracking solution via monkey patching, enabling seamless integration with diverse e-commerce architectures without requiring client-side development effort.
• Experimentation Culture: Implemented the platform's A/B testing framework, institutionalizing a metrics-driven product evolution approach through controlled experimentation.

• Mission-Critical Financial Architecture: Contributed to Magnum Bank and Genial Investimentos development.
• Ensured high-quality code delivery in a regulated, high-complexity environment.

• Strategic Project Recovery: Identified missing backend as the primary blocker in CVC's Check-in project and proactively assumed solution design to prevent launch delays.
• Delivery Acceleration via Architecture: Designed and developed a Node.js/NestJS backend using Clean Architecture, resulting in immediate velocity gains and improved maintainability for the team.

• High-Impact Operational Efficiency (95%): Executed critical refactoring of the web chat (Vue.js/Firestore) that dramatically reduced I/O operations, generating 95% savings in direct operational costs.
• Time-to-Value in New Products: Led MVP development of a corporate social network launched in one month, plus delivered the mobile chat version within six months.
• Purpose-Driven Innovation: Implemented accessibility features for visually impaired users on own initiative, expanding digital inclusion during a critical period of social isolation.

• Technology Portfolio Optimization: Led refactoring of web scraping bot architecture, implementing a parameterized system that reduced the application portfolio by 75% and dramatically simplified maintenance.
• Data Intelligence Automation: Developed a document pattern recognition solution via OpenCV, increasing accuracy and speed in automated data processing.

• Legacy Systems Stabilization: Assumed ownership of a critical ecosystem of 30 undocumented microservices, using reverse engineering and observability to stabilize operations.
• Global Compliance and Governance: Led product compliance with LGPD/GDPR standards and managed technical approvals with Meta (Facebook) under strict deadlines, ensuring continuity of mission-critical data integrations.

• Government Systems Modernization: Contributed to building the first PJe-integrated system in Pará, using Java and Angular to digitize complex legal processes.
• Business Intelligence Foundation: Implemented ETL workflows and analytics dashboards (Oracle/Qlik), developing the ability to translate technical data into actionable business insights.

• Integration Efficiency (92%): Developed a generic REST converter that reduced SOAP integration costs by 92%, modernizing communication between legacy systems.
• Engineering Leadership and Governance: As Development Manager, led 20+ developers and implemented the institution's first staging environment, elevating deployment maturity and reliability.
• Legacy Systems and Data Performance: Maintained critical ecosystems (VB6), deepening Oracle Database expertise through direct collaboration with senior DBAs to ensure stability and data integrity at scale.

• Mission-Critical Crisis Management: Ensured operational continuity in high-criticality areas (ICU/Operating Room) during ERP Tasy go-live.
• Migration Cost Reduction: Developed C# scripts for medical record migration, eliminating external consulting dependency and mitigating sensitive data loss risks.

• Service Integration Architecture: Implemented REST APIs using ASP.NET MVC, establishing service-oriented architecture (SOA) patterns that enabled interoperability across distinct platforms and product scalability.

• Mission-Critical Systems Ownership: Assumed full responsibility for SCAP, a vital system for port operations, guaranteeing 100% operational availability under high-pressure and high-traffic scenarios.
• Resilience and Business Continuity: Performed real-time production diagnostics and fixes, mitigating logistical disruption risks and stabilizing integration between the central database and field mobile devices.