~/douglas-montanus

Hi, I'm

Douglas Montanus

Senior Software Engineer leading the design, architecture, and development of enterprise-scale software solutions across government, logistics, retail, and SaaS industries. Strong background in software architecture, system design, full-stack engineering, API development, distributed systems, and cloud-native applications. Experienced in making technical decisions, solving complex engineering challenges, and delivering scalable, maintainable solutions using React, Node.js, Python, Java/Spring Boot, and .NET across AWS, and Azure. Combines hands-on engineering expertise with technical leadership, guiding solutions from architecture and design through implementation, integration, and production deployment.

Experienced in designing and building AI-powered software development harnesses and multi-agent workflows that integrate AI coding assistants with Git/GitHub, Jira, code reviews, and development pipelines. Automates development activities across planning, implementation, testing, code review, and deployment, using agent orchestration and tools to improve engineering productivity and software delivery.

Professional portrait of Douglas Montanus

Focus areas

Full-Stack & Cloud Systems Architecture

Designing and deploying microservices, serverless workloads, REST/gRPC APIs, and responsive frontends using modern cloud infrastructure (AWS/GCP, Docker, Kubernetes, IaC).

Intelligent AI Assistants & Solution Platforms

Architecting low-latency, real-time conversational AI solutions integrated into web applications and communication stacks with multimodal APIs, handling dynamic routing, state persistence, and backend service integration.

Custom AI Dev Harnesses & Developer Tooling

Engineering local developer harnesses and autonomous execution environments that pair open-source models and Claude with codebases for automated refactoring, code generation, and complex workflow orchestration.

What I work with

AI Models

Claude (Anthropic), Gemini, Gemini Live, Gemma, Azure OpenAI

Agentic AI

MCP, Tool Calling & Structured Output, Multi-Agent Loops, Claude Code, Voice Agents (LiveKit)

AI Platforms & MLOps

Anthropic Claude API, Vertex AI, Ollama, vLLM, RAG, Vector Databases, Performance & Cost Optimization

AI Video & Media

ComfyUI, Wan 2.2 (Image-to-Video), Flux, AnimateDiff, Kokoro / Piper TTS, Kdenlive

Languages

Python, JavaScript (ES6+), TypeScript, Java, Spring Boot

Frontend

React, Next.js, Vite, Tailwind CSS, MUI, HTML5, CSS3

Backend

Java / Spring Boot, Node.js, Express, FastAPI, REST / gRPC APIs

GCP

Cloud Run, Cloud Build, Compute Engine, Vertex AI, Firestore

AWS

Lambda, ECS, CDK, CloudFormation, API Gateway, EventBridge, EKS, RDS

Azure

AKS, App Service, Functions, Event Grid, API Management, DevOps, GPT-4

Databases

PostgreSQL, MySQL, MS SQL, MongoDB, RDS

ML & Optimization

OpenCV, Google OR-Tools

CI/CD & Tools

Azure DevOps, GitLab, Docker, Kubernetes, Infrastructure as Code

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