⚡
Backend Engineering & API Development
The most recurring thread across 20+ years — building the services that power products.
- High-performance RESTful API design, development, and versioning (Java, Spring Boot, Kotlin)
- Microservices architecture design and decomposition for scale
- Event-driven architectures with Apache Kafka
- Reactive and functional programming (Spring Reactive / WebFlux)
- Process orchestration and workflow automation (Camunda BPM, BPMN)
- Resilience patterns: circuit breakers, retry mechanisms, fallback pipelines
- Python backend services (Flask) for rule engines and pricing APIs
- Node.js services for compliance and integration layers
🏦
Financial & Banking Solutions
Deep domain expertise across 5 major financial institutions.
- Foreign exchange (FX) APIs — real-time currency pricing, automated buying/selling
- PIX payment system APIs — channel and partner integration
- Credit decision engines — complex rule orchestration, loan approval scoring
- Investment account APIs and wholesale credit pipelines
- Payment gateway integration (Pagar.me and others)
- Automated market making for foreign exchange
- Forecasting for trading strategy algos
- Core banking and mainframe integration (COBOL)
☁️
Cloud Infrastructure & DevOps
Production-grade cloud architecture on AWS and Azure.
- AWS architecture: CloudFront CDN, Lambda@Edge, SageMaker
- Azure cloud migration: Spring, MongoDB, Kafka on Azure PaaS
- Autoscaling, hardware provisioning, and cost optimization
- CI/CD pipeline design and deployment automation
- Cluster dimensioning and performance optimization
🔄
System Modernization & Migration
Migrating mission-critical systems to modern stacks without downtime.
- Legacy-to-cloud migration (on-premise to AWS/Azure)
- Platform migration (Websphere → Spring, monolith → microservices)
- Mainframe integration bridges (COBOL ↔ modern APIs)
- Database migration strategies (SQL Server → MongoDB)
🌐
Web Application Development
Full-stack web delivery from front-end rebuilds to CDN-optimized platforms.
- Scalable web applications (Java, Kotlin, Node.js, Python)
- E-commerce platform development and front-end rebuilds
- Server-side rendering, SSG, and CDN optimization
- A/B testing infrastructure, feature toggles, and progressive rollouts
- Paywall and user acquisition funnel engineering
- Vendor and third-party integration (Firebase, payment processors)
📱
Mobile App Development
- Native Android Development (Java/Kotlin)
- Cross-platform Development (Flutter, React Native)
- Mobile API Integration and Performance Optimization
- App Store Submission and Lifecycle Management
🔗
System Integration & Third-Party APIs
Connecting internal platforms with external services, bureaus, and government systems.
- Multi-vendor integration architectures with configurable fallback pipelines
- Financial bureau integration (Accuity, Neoway, BigBoost)
- Government and regulatory API integration
- Advertising and campaign management integration (DoubleClick)
- Banking network and information APIs (Bankers Almanac)
📊
Data Engineering & Analytics
From raw data pipelines to executive dashboards.
- Data pipelines and ETL/ELT workflows
- Data warehousing and large-scale data processing
- Data analysis, visualization, and custom dashboards
- Big Data cluster infrastructure planning and deployment
- Dataset preparation for enterprise clients
- LGPD compliance audit
- Data privacy engineering
🛡️
Compliance & Regulatory Engineering
Purpose-built compliance systems with multi-bureau resilience.
- KYC/AML compliance APIs with multi-bureau fallback pipelines
- Government and regulatory API integrations
- Banking information and network data integration
- LGPD / data privacy compliance engineering
🤖
AI Integration & Intelligent Automation
Practical AI that drives business outcomes.
- AI agents and intelligent automation workflows
- Machine learning model integration (AWS SageMaker)
- Data-driven recommendation engines
- Fine-tuning LLMs for domain-specific tasks
- Harnessing LLMs and Agents for content generation
- Process automation and optimization with AI
🔧
Performance & Reliability Engineering
Building systems that stay up and stay fast under pressure.
- Performance testing and Chaos Testing (JMeter)
- Monitoring system development and observability
- SRE practices and production support
- High-availability architecture (sub-100ms at scale)
- Security patching and infrastructure right-sizing
📚
Digital Publishing & Content Generation
- Digital publishing of books
- Mass multimedia content generation at scale
- Vector graphics generation for print (SVG, QR codes)
- Custom branding and marketing material automation
🎯
Technical Leadership & Consulting
Hands-on technical leadership, not just strategy decks.
- Solutions architecture and technical strategy
- Software governance and cross-team engineering excellence
- Team mentoring, code reviews, and internal tech talks
- Requirements analysis, estimation, and full lifecycle delivery
- Technology research, ecosystem evaluation, and tool selection
- Cross-functional team leadership for rapid feature delivery