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Hi, I’m Weverton Castanho, a Data & AI Platform Architect with 14+ years designing enterprise-grade AI/ML platforms, data architectures, and cloud-native solutions across banking, telecoms, fintech, and technology sectors. I enjoy turning complex data into actionable insights and building scalable, governance-friendly platforms that enable autonomous agent workflows, LLM integrations, and real-time analytics. My focus spans cloud-native environments (AWS, Azure, GCP), hybrid on-prem solutions, and open-source tooling, with emphasis on secure, observable systems and RBAC/ABAC security. Currently I’m architecting an on-prem AI agent platform for General Electric, leading cross-functional teams of data engineers, ML engineers, and developers. I’m passionate about mentoring, governance, and delivering practical GenAI and agent frameworks to empower business users while maintaining compliance and resilience.…Hi, I’m Weverton Castanho, a Data & AI Platform Architect with 14+ years designing enterprise-grade AI/ML platforms, data architectures, and cloud-native solutions across banking, telecoms, fintech, and technology sectors. I enjoy turning complex data into actionable insights and building scalable, governance-friendly platforms that enable autonomous agent workflows, LLM integrations, and real-time analytics. My focus spans cloud-native environments (AWS, Azure, GCP), hybrid on-prem solutions, and open-source tooling, with emphasis on secure, observable systems and RBAC/ABAC security. Currently I’m architecting an on-prem AI agent platform for General Electric, leading cross-functional teams of data engineers, ML engineers, and developers. I’m passionate about mentoring, governance, and delivering practical GenAI and agent frameworks to empower business users while maintaining compliance and resilience.

Weverton Castanho

Full Stack Developer, Data Scientist, AI Engineer, +3

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Hi, I’m Weverton Castanho, a Data & AI Platform Architect with 14+ years designing enterprise-grade AI/ML platforms, data architectures, and cloud-native solutions across banking, telecoms, fintech, and technology sectors. I enjoy turning complex data into actionable insights and building scalable, governance-friendly platforms that enable autonomous agent workflows, LLM integrations, and real-time analytics. My focus spans cloud-native environments (AWS, Azure, GCP), hybrid on-prem solutions, and open-source tooling, with emphasis on secure, observable systems and RBAC/ABAC security. Currently I’m architecting an on-prem AI agent platform for General Electric, leading cross-functional teams of data engineers, ML engineers, and developers. I’m passionate about mentoring, governance, and delivering practical GenAI and agent frameworks to empower business users while maintaining compliance and resilience.…Hi, I’m Weverton Castanho, a Data & AI Platform Architect with 14+ years designing enterprise-grade AI/ML platforms, data architectures, and cloud-native solutions across banking, telecoms, fintech, and technology sectors. I enjoy turning complex data into actionable insights and building scalable, governance-friendly platforms that enable autonomous agent workflows, LLM integrations, and real-time analytics. My focus spans cloud-native environments (AWS, Azure, GCP), hybrid on-prem solutions, and open-source tooling, with emphasis on secure, observable systems and RBAC/ABAC security. Currently I’m architecting an on-prem AI agent platform for General Electric, leading cross-functional teams of data engineers, ML engineers, and developers. I’m passionate about mentoring, governance, and delivering practical GenAI and agent frameworks to empower business users while maintaining compliance and resilience.

Available to hire

Hi, I’m Weverton Castanho, a Data & AI Platform Architect with 14+ years designing enterprise-grade AI/ML platforms, data architectures, and cloud-native solutions across banking, telecoms, fintech, and technology sectors. I enjoy turning complex data into actionable insights and building scalable, governance-friendly platforms that enable autonomous agent workflows, LLM integrations, and real-time analytics. My focus spans cloud-native environments (AWS, Azure, GCP), hybrid on-prem solutions, and open-source tooling, with emphasis on secure, observable systems and RBAC/ABAC security.

Currently I’m architecting an on-prem AI agent platform for General Electric, leading cross-functional teams of data engineers, ML engineers, and developers. I’m passionate about mentoring, governance, and delivering practical GenAI and agent frameworks to empower business users while maintaining compliance and resilience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Portuguese

Fluent

English

Fluent

Spanish; Castilian

Fluent

Work Experience

Data & AI Platform Architect at Holisticon Insight – General Electric, USA

August 1, 2025 - Present

Led the design and implementation of a secure on-premises data platform with native AI agent capabilities for an integrated ecosystem. Architected scalable, hybrid deployment supporting structured/unstructured data (vectors, time-series, data lakes) and defined an AI agent framework for autonomous data retrieval, transformation, and analytics. Built modular interfaces for pluggable AI models (cloud-based LLMs: OpenAI, Anthropic; open-source: LLaMA, Mistral). Developed REST APIs with a microservices backbone and established enterprise-grade governance, lineage, observability, RBAC/ABAC security. Mentored cross-functional teams and drove technical direction to enable innovation across the organization.

Senior Software Engineer – LLM/NLP Project at Dorak Services (Contract for Microsoft), Dublin

February 1, 2024 - January 1, 2025

Delivered scalable LLM/NLP solutions and led GenAI/ML technologies from PoCs to production. Managed the full lifecycle of GenAI-powered services, including development, testing, quality assurance, and deployment. Enforced modern engineering practices, collaborated across engineering and data science teams, and deployed GenAI/LLM solutions across Azure, AWS, and Google Cloud with a focus on governance and reliability.

Software Engineer Consultant at Avaya – Galway

November 1, 2022 - August 1, 2023

Solution Architect and Software Engineer focusing on enterprise data models, hybrid cloud architectures, and scalable infrastructure. Led microservices design and deployment, optimized Elasticsearch clusters, integrated Kafka-based data services, and implemented service mesh for observability and security. Drove CI/CD pipelines and cross-team collaboration to deliver secure, scalable components.

Staff Software Engineer at Genesys - Galway

May 1, 2020 - March 1, 2021

Led architecture and development of big data, ML, and microservices solutions. Delivered end-to-end features with secure, scalable components, optimized databases (PostgreSQL, Oracle DB), and implemented service mesh. Built CI/CD pipelines and emphasized performance optimization, monitoring, and observability.

Big Data Architect at Storm Technology, Dublin

January 1, 2019 - May 1, 2020

Designed and deployed big data and hybrid cloud solutions, orchestrating Spark/Hadoop clusters, data ingestion pipelines, and virtualization. Implemented monitoring and observability with Datadog, Grafana, and Prometheus; ensured scalable, high-availability architectures across cloud environments.

Data Architect at FISERV - Nenagh

August 1, 2021 - November 1, 2022

Architected enterprise data integration with data vault approaches, implemented ETL/ELT using ODI and PySpark, and integrated REST APIs for cross-platform data movement. Led hybrid cloud deployments (OCI, AWS) and implemented Oracle Fusion ERP/HCM integrations, BPEL orchestration, and RPA workflows for governance and analytics.

Big Data & Solutions Architect (ETL/ELT) at Web2Doctors, São Paulo, Brazil

January 1, 2015 - December 31, 2017

Delivered marketing applications in rapid sprints; migrated Oracle Exadata BI to AWS Big Data stacks; modeled data with R, Neo4J, and Markov Chains for analytics; led cloud integration and enterprise data workflows.

Solution & Data Architect at Oracle Corporation, São Paulo, Brazil

January 1, 2010 - December 31, 2015

Integrated enterprise systems (IBM z/OS, Maximo, Siebel, SAP) using Oracle BPEL, ESB, and SOA; migrated legacy JBoss/MySQL to Oracle WebLogic and Oracle DB RAC; led PoCs and blueprints for Oracle BAM, WebCenter, and BI tooling.

Software Architect at Hewlett-Packard, São Paulo, Brazil

January 1, 2009 - December 31, 2010

Led integration projects for BAT using Oracle Aqualogic and SOA tools; delivered a global virtualization framework; mentored teams on SAP/Siebel integration, cloud automation, and Oracle middleware.

Data Engineer / SOA Consultant (ETL/ELT) at Oracle Corporation, São Paulo, Brazil

January 1, 2003 - December 31, 2009

Delivered telecom integration projects (TIM, Telefonica, Claro) using Tuxedo, J2EE, WebLogic, SOAP; migrated financial systems (Visa, Mitsubishi Bank) with Oracle middleware; integrated 16 legacy platforms across z/OS, AIX, and Windows.

Software Engineer (ETL/ELT) at Accenture, São Paulo, Brazil

January 1, 2003 - December 31, 2003

Led architecture and pre-sales for Big Data and AI solutions; delivered ERP/BI-focused projects; created technical documentation and RFP responses; aligned solutions with business KPIs.

Data & AI Platform Architect at Holisticon Insight – General Electric (USA)

August 1, 2025 - Present

Led architecture and delivery of an on-premises AI-native data platform supporting autonomous agent workflows, LLM integrations, and enterprise data governance for GE. Architected a secure, scalable hybrid data platform with structured, unstructured, vector, and time-series storage. Built an AI Agentic Framework enabling internal users to build autonomous agents for data retrieval, transformation, and analytics using LangGraph, CrewAI, and AutoGPT. Implemented pluggable AI model interfaces across cloud LLMs and open-source options; developed REST APIs and microservices; established governance, lineage, observability, and security (RBAC/ABAC).

Senior Software Engineer – LLM/NLP at Dorak Services @ Microsoft

February 1, 2024 - January 1, 2025

Designed and integrated scalable GenAI/NLP solutions; led PoCs and evaluated feasibility for real-world customer challenges. Managed full lifecycle of GenAI/LLM-powered services; deployed across Azure, AWS, and GCP with scalable governance; aligned cloud consumption with MACC spend; enforced engineering best practices.

Big Data Architect – Digital Transformation at Bank of Ireland

August 1, 2023 - February 1, 2024

Implemented Cloudera Data Platform to support ODS, Data Lake, and real-time streaming. Automated infrastructure provisioning with Terraform across hybrid clouds (AWS + Azure). Designed data models for financial services compliance; optimized Elasticsearch clusters and configured RBAC for Kibana/Elasticsearch.

Software Engineer Consultant – Solution Architect at Avaya

November 1, 2022 - August 1, 2023

Designed scalable enterprise data models and hybrid cloud architectures across AWS, Azure, and GCP. Configured Istio service mesh for observability, security, and traffic management in microservices. Built and optimized CI/CD pipelines; managed Kubernetes and Docker deployments; tuned PostgreSQL and OracleDB.

Data Architect at Fiserv

August 1, 2021 - November 1, 2022

Designed and delivered a dedicated EDW consolidating payment transactions from multiple banks using Data Vault 2.0. Developed ETL workflows with ODI, PySpark, and REST APIs for multi-platform data integration. Designed hybrid cloud architectures on AWS and OCI; automated ERP/HCM modules; delivered BI analytics with Snowflake and Oracle BI.

Staff Software Engineer – Big Data & ML at Genesys

May 1, 2020 - March 1, 2021

Designed and deployed microservices; integrated Elasticsearch and Kafka for high-availability data services; owned features end-to-end from architecture to production deployment. Built CI/CD pipelines and managed Kubernetes and Docker.

Big Data Architect at Storm Technology / Cruise Autonomous Vehicles / Possible Architect

January 1, 2017 - May 1, 2020

Led PoCs for AI-driven autonomous vehicle technologies; migrated traditional DW to Big Data for Nextel/Santander; integrated legacy systems using Kafka, Hive, and hybrid cloud. Designed Spark cluster configurations and Java libraries for batch and online integrations; managed AWS EMR.

Solution & Data Architect / Data Engineer at Oracle Corporation | HP | Accenture

January 1, 2003 - January 1, 2017

Integrated enterprise systems across telecoms and financial institutions using Oracle SOA Suite, BPEL, and ESB; supported national telecom integration projects; utilized Tuxedo, J2EE, and WebLogic to deliver critical integration solutions.