Luca Destefano Boer
Senior Software Engineer
Backend · Applied AI · Cloud

Profile / 2026

Luca Destefano Boer

Luca Destefano Boer is a Senior Software Engineer based in São Paulo, Brazil. He builds backend systems and applied AI products, including LLM agents, RAG pipelines and real-time voice agents, in Python, Go and TypeScript, running on AWS and Kubernetes.

São Paulo, Brazil · UTC−3Engineering since 2023Open to remote roles

01 / About

Backend engineering
for AI products.

Luca started as a mobile developer in 2023, building React Native apps that supported social aid initiatives, such as food basket distribution for families in need. He then moved to full-stack work on an AI assistants platform, shipping Node.js and TypeScript APIs, streaming chat interfaces and document RAG pipelines, with performance-critical parts in Go and Rust.

Today he is a Senior Software Engineer and Tech Lead of an AI agents platform at a US company that builds AI agents and automation workflows for clients across industries, from healthcare and education to high-volume invoicing. He owns systems end to end, from architecture and code reviews to evaluations, guardrails and observability, and works daily with AI-assisted development tools such as Claude Code and Codex.

02 / Expertise

Areas of
expertise.

Backend engineering

APIs and services built for reliability and clear contracts.

  • Python, Go, TypeScript
  • Node.js and NestJS
  • REST, gRPC and OpenAPI
  • PostgreSQL, MongoDB, Redis
  • Temporal workflows
  • Distributed systems
  • Clean Architecture and DDD
  • Unit, integration and E2E tests

Applied AI

LLM features that are evaluated, observable and safe.

  • AI agents and LLM orchestration
  • Tool and function calling
  • RAG, embeddings, vector search
  • MCP servers
  • Real-time voice agents (LiveKit, Twilio SIP)
  • Golden-dataset evaluations
  • Prompt-injection guardrails
  • Langfuse, Portkey, LiteLLM, OpenRouter
  • OpenAI and Anthropic APIs, LangChain, LlamaIndex

Cloud & infrastructure

Production infrastructure on AWS and Kubernetes.

  • AWS Lambda, EC2, EKS
  • SQS and S3
  • Cognito, KMS, IAM
  • Kubernetes and Docker
  • Terraform
  • CI/CD with GitHub Actions
  • OpenTelemetry
  • Grafana, Prometheus, Datadog

03 / Experience

Experience.

  1. – Present

    Future Secure AI

    Senior Software Engineer, Tech Lead

    US AI company building AI agents and automation workflows for clients across industries, including healthcare, education and high-volume invoicing. Leads the internal AI agents platform since April 2026. Remote from Brazil.

    Python · Go · TypeScript · AWS · Kubernetes · LiveKit · Temporal · MCP

  2. –

    AIZZY

    Fullstack Developer

    AI assistants platform. Node.js and TypeScript APIs, React streaming chat, document RAG pipelines, Go and Rust components and AWS Lambda workers. Remote from Brazil.

    TypeScript · Node.js · React · Next.js · Go · Rust · Python · AWS Lambda

  3. –

    Maker Experts

    Mobile Developer

    React Native and TypeScript apps that supported social aid initiatives, such as food basket distribution, with offline-first storage, REST integrations and App Store and Play Store releases. São Paulo, Brazil.

    React Native · TypeScript · REST

04 / Projects

Side project.

  1. 2026 – Present

    recepia

    WhatsApp booking assistant

    An assistant that books routine dental appointments over WhatsApp and hands anything unusual to reception. It is not live with a clinic yet, but it is built like a production service: a deterministic engine owns every write, a Claude agent only proposes actions through gated tools, and an eval suite with prompt-injection attacks gates every push.

    TypeScript · PostgreSQL · Claude API · OpenTelemetry

    Source github.com/lucadboer/recepia

    →

05 / Education

Education &
languages.

  • MBA, Software Architecture · Full Cycle · in progress
    2026 – 2027
  • Postgraduate Specialization, Advanced Software Development with Golang · Full Cycle
    2023 – 2024
  • Technology Degree (Tecnólogo), Systems Analysis and Development · Universidade Paulista (UNIP)
    2021 – 2023
  • Fullstack Development, intensive course · Rocketseat
    2023

Portuguese — nativeEnglish — advanced (B2/C1)

06 / Contact

Let's talk.

Open to remote Senior Backend and AI Engineer roles, full-time or contract, with availability for US business hours.

Building backend or AI systems?