Solutions Architect

Generative AI · Agentic Systems · Distributed Architecture

I architect and design scalable, secure, production-ready systems combining Generative AI, RAG, microservices, and distributed architectures. 10+ years building high-impact solutions for fintech, startups, and enterprises worldwide.

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Featured work

Expertise

Generative AI & Agentic Systems

Multi-provider LLM orchestration (Claude, OpenAI, Gemini, Mistral, Llama). RAG pipelines, embeddings, vector search, prompt engineering. Building AI-driven incident resolution, code analysis, and automation platforms with production-grade safeguards.

Architectural Strategy

Technical roadmapping for fintech and complex platforms. Align business goals with scalable system design. Trade-off analysis for performance, security, and operational costs.

Distributed Systems

Design high-availability, resilient architectures. Microservices, event-driven, CQRS patterns. System scalability and performance optimization at scale.

Platform Modernization

Legacy system migrations, zero-downtime deployments, DevOps practices, and cloud infrastructure optimization. Sustainable technical evolution.

Engineering Leadership

Team mentoring, cross-functional collaboration, architectural governance, and building high-performance technical cultures. Design thinking and innovation.

Fintech & Payment Systems

Credit decisioning systems, issuer flows, payment infrastructure, and compliance frameworks. Security, compliance, and operational efficiency at scale.

LLM Infrastructure & Multi-Provider Routing

Multi-provider LLM orchestration with automatic failover. Token counting, credit-based billing, rate limiting. Stripe integration, usage analytics, cost optimization.

Spec-Driven Development

Architecture Decision Records (ADRs), OpenSpec-based feature specifications, proposal-driven development. AI-assisted documentation and design-first approach to software delivery.

About

I'm a Solutions Architect with 10+ years of experience designing production-grade systems at scale. I specialize in Generative AI, distributed architecture, and fintech platforms, with hands-on expertise building SaaS products and AI-driven infrastructure. Former Tech Lead with strong soft skills in team building, mentorship, and cross-functional collaboration.

My recent work focuses on advanced AI applications: multi-provider LLM orchestration (Claude, OpenAI, Gemini), code-aware RAG systems, incident resolution automation, and production AI infrastructure. I've architected systems handling high-scale microservices, vector search, and complex billing/credit systems—all with enterprise-grade safety and compliance.

I thrive in multicultural environments, fluent in English, Portuguese, and German. My approach combines deep technical execution, strategic thinking, leadership skills, and focus on measurable business impact.

10+
Years
50+
Projects
3
Continents

Education

Master of Business Administration (MBA) in Software Engineering with Artificial Intelligence (In Progress)

Bachelor's Degree in Computer Science — Federal University of Campina Grande (UFCG) · Software Engineering Focus

Languages

English
Fluent
Portuguese
Native
German
Professional
Spanish
Intermediary
French
Intermediary

Technical Articles

Deep-dive guides on system architecture, distributed systems, Generative AI, and production engineering. Explore real-world patterns and best practices.

Building Production-Grade Agentic Systems

Learn patterns for production-ready AI agents with Claude. Tool use, reasoning loops, cost control, and observability.

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Distributed Systems Design

Practical guide from theory to production. Consistency models, failure patterns, and real-world trade-offs.

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Multi-Provider LLM Orchestration

Build production LLM routing with automatic failover, cost optimization, and rate limiting across providers.

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Technologies & frameworks

Generative AI & LLMs

Claude OpenAI Gemini Mistral Llama Multi-LLM Routing LLM Orchestration Provider Fallback Agentic Systems RAG Embeddings Vector Search Prompt Engineering Token Counting & Billing Moderation & Safety Streaming Responses

Backend & Infrastructure

Java Quarkus Spring Boot Python TypeScript AWS GCP Kubernetes PostgreSQL MongoDB Kafka Qdrant Docker Terraform

Patterns & Architecture

Microservices Event-driven CQRS DDD Hybrid Search Distributed Systems Zero-downtime Migration High-availability

Let's talk

Projects, partnerships, or new challenges

contato@lucassenna.com.br