About Me
Solution Architect with 20 years designing systems that solve hard operational problems — vessel scheduling, multimodal transport planning, fleet optimization, real-time IoT analytics. I build the models and I build the production systems around them. Founded HDRN to bring constraint programming and optimization to logistics, ports, and industrial operations across 25+ client engagements. Track record of turning days-long planning processes into minutes-long automated decisions.
Based in Belo Horizonte, Brazil
Experience
Founder & Solutions Architect
HDRN · Belo Horizonte, Brazil
Founded an independent consulting practice delivering architecture, optimization, and intelligent systems across 25+ engagements for clients in logistics, healthcare, government, fleet management, IoT, and GIS sectors.
- Architected port resource planning system optimizing 15-day rolling schedules across road/rail/maritime—processing 50+ vessels and 1,000+ railcars monthly, handling 2M+ tons of bulk commodities. QA-validated by operations specialists; awaiting upstream railway real-time data integration to go live
- Built ship unloading optimizer (Pyomo) balancing hull stability and dock throughput—reducing vessel turnaround by 15%
- Developed steel dispatch optimizer (Z3) for storage allocation and crane scheduling—reducing planning time from days to minutes
- Created pension litigation optimizer (JaCoP) for retirement benefit calculations with full payment history and monetary correction projections
- Designed ML-based weather prediction system (PyTorch) using private radar data, achieving 85% accuracy for 6-hour port operation forecasts vs ~50% from public weather services
- Led 5-year platform modernization for major logistics operator—migrated to Kubernetes, reduced deployment time from weeks to hours, cut infrastructure costs by 40%
- Built IoT analytics platform processing 10,000+ sensor events/second via Spark Streaming and Akka, with sub-second alerting for 500+ physical security devices
- Developed GIS/PostGIS spatial systems for water resource grants (analyzing 10,000+ km² watersheds) and rural property monitoring with AR-based inspection
Principal Architect / Architecture Manager
Algar Tech · Uberlândia, Brazil
Managed the IT architecture practice for a major IT services company. Oversaw engineering standards across multiple development teams and led the architects group. Owned pre-sales technical strategy, hiring and development of architects and senior developers, and hands-on solution design for key enterprise accounts in banking and healthcare.
- Built the architecture practice from the ground up—hiring architects and senior engineers across 4 delivery units
- Led pre-sales technical strategy as senior consultant, co-authoring proposals that secured multi-million dollar banking and healthcare contracts
- Established engineering standards adopted across all development teams, reducing production defects
- Delivered SSO integration for banking joint venture 2 weeks ahead of deadline, unifying authentication across 5 legacy systems
- Designed reference architecture for preventive health program serving 50K+ patients
Software Architect
Algar Tech · Uberlândia, Brazil
Designed and led development of enterprise systems for government and telecom clients. Led team of 5-12 developers. Technical instructor for internal and external training programs.
- Architected telecom CRM + ERP for state utility managing 50K+ circuits—end-to-end operational control from feasibility studies to circuit provisioning, physical/logical inventory, graph-based provisioning across SDH, PDH, Metro-Ethernet, GPON, IP/MPLS
- Built federated Identity Manager and BPMS Central Server reused across 6 government institution projects, reducing integration time by 60%
- Developed state debt management system with 100-decimal precision, processing R$2B+ portfolio with 40-year amortization calculations via Drools BRMS
- Designed BPM workflows managing 3,000+ state-owned properties for acquisition, sale, and adjudication
- Trained 100+ developers as technical instructor for Java, JBoss, and Hibernate—rated 4.8/5.0 satisfaction
Software Developer
Synos Technologies · Belo Horizonte, Brazil
Progressed from intern to architect-level responsibilities in 2 years, delivering government and telecom systems as a core team member.
- Built environmental process workflow systems for government clients using jBPM
- Implemented cable router lifecycle management via SNMP/TFTP for telecom network infrastructure
Skills
Core Expertise
Optimization & Constraint Programming
Core Languages
Cloud & Infrastructure
Production Experience
ML & AI
Data & Streaming
Backend Frameworks
Familiar
Frontend & Mobile
Additional Languages
Enterprise & Legacy
Projects
Flagship Projects
Port Resource Planning and Optimization
Large-scale port optimization for bulk product logistics handling 2M+ tons monthly. Plans across multimodal transport (road, railway, maritime), multiprocess operations (loaders, unloaders, silos, warehouses, belt conveyors), and equipment allocation.
Challenge: Manual planning took 2 days and achieved 60% equipment utilization
Solution: Built OR-Tools-based optimizer with 15-day rolling horizon, weather/tide integration
Result: Plans generated in 15 minutes, 85% projected utilization. QA-validated by operations; awaiting upstream railway real-time data feed to go live
Logistics Platform Modernization
5-year modernization of production logistics platform serving Brazil's largest port operator. Migrated from legacy Azure App Service to Kubernetes, rebuilt observability stack, optimized database performance.
Challenge: 30-minute deployments, frequent outages, no observability
Solution: Kubernetes migration, Elastic APM, query optimization, CI/CD pipelines
Result: 40% cost reduction, 99.9% uptime, deployments in minutes
IoT Physical Security Analytics Platform
Real-time event stream analytics for IoT-connected physical security devices. Complex event processing with stateful sliding windows for intelligent alerting.
Challenge: 500+ devices generating 10K+ events/second with no analytics
Solution: Spark Streaming + Akka CEP with Cassandra time-series storage
Result: Sub-second alerting, 99.99% event processing, pattern detection for intrusions
Telecom CRM + ERP System
Full telecom operational control system for state utility managing 50K+ circuits across SDH, PDH, Metro-Ethernet, GPON, and IP/MPLS technologies. Weighted Dijkstra for traffic analysis, optimal route calculation, and automatic route suggestions during circuit provisioning.
Challenge: Spreadsheet-based circuit management, manual provisioning taking weeks, no visibility into network capacity
Solution: Graph-modeled network topology with weighted Dijkstra for optimal route suggestions, capacity analysis, and automated provisioning workflows
Result: Provisioning time reduced from weeks to days, optimal route suggestions, full network traffic visibility
Notable Projects
Ship Unloading Optimization
Constraint-based optimization for ship unloading sequences balancing hull stability and dock throughput. Reduced vessel turnaround by 15%.
Steel Products Dispatch Optimization
Storage allocation and crane scheduling optimization for road transport, reducing dispatch planning from days to minutes.
Pension Litigation Optimization
SAT-based optimization for retirement benefit calculations with full payment history computation and monetary correction projections.
Port Weather Prediction System
ML-based weather prediction using private radar data, achieving 85% accuracy for 6-hour port operation forecasts.
GIS Land-Use Classification API
ML-based GIS API that identifies and vectorizes land-use topology classes for spatial analytics applications.
Water Resource Grant Analysis
GIS system analyzing 10,000+ km² watersheds for water usage grants, from artesian wells to hydroelectric pre-projects.
Rural Property AR Monitoring
Augmented Reality mobile app for rural property self-inspection, matching camera angles to analyze degraded area recovery.
State Debt Management System
High-precision financial system processing R$2B+ portfolio with 100-decimal calculations and Drools-based dynamic financial rules.
Road Load/Unload OT System
Modernized operational technology system for vehicle lifecycle control with PLC/OPC-UA integration for scale gates and dock assignment.
Recipe Optimization Engine
Z3-based recipe optimization engine with 50+ nutritional constraints for personalized meal planning.
Public Healthcare ETL
Multi-source batch ETL integrating 12+ national health system feeds (SUS, SINAN, SIM, SINASC) for municipal healthcare budget management. Handled inconsistent schemas, partial records, and retroactive corrections across millions of monthly events. Built reconciliation logic to match federal disbursements with local service delivery records.
Additional Projects
Banking SSO Integration
SSO integration for banking joint venture unifying 5 legacy systems, delivered 2 weeks early.
Government BPMS Platform
Federated Identity Manager and BPMS Central Server reused across 6 government projects.
Fleet Management Portals
SAP-integrated portals for purchase orders (R$50M+ annually) and debt negotiation.
State Property Management
BPM workflows managing 3,000+ state-owned properties for acquisition and sale.
Education
Bachelor of Science in Computer Science
Pontifícia Universidade Católica - PUC/MG
2007
Certifications
Sun Certified Java Programmer
Sun Microsystems
February 2009
Sun Certified Business Component Developer
Sun Microsystems
April 2009