Looking for a job

Diego Marcelo

@diegomarcelo

Senior Software Engineer at AFTER.COM who built autonomous AI coding agents that implement changes, run tests, and monitor CI/CD.

Brazil

Message

At AFTER.COM, I built autonomous AI coding agents for the software development lifecycle. They took Linear issues through code changes, tests, pull requests, and CI/CD monitoring, with human review workflows.

At AGILEENGINE, I worked with a healthcare client on a dental practice management platform and built a real-time AI voice agent for calls from leads and patients. I also developed agent workflows, MCP servers, and RAG pipelines.

At DBSERVER, I worked on critical systems as a Software Architect / Senior Full Stack Developer, defining application and service architecture with product and engineering teams. Across my work, I’ve built full-stack applications and distributed systems, and more recently worked on customer and internal AI agents, RAG systems, and autonomous coding agents.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

After.com

Nov 2025 - Aug 2026 (9 months)

Owned features end to end across After's B2C product, working closely with the product team from discovery and architecture through implementation, deployment, monitoring, and production support. Built autonomous AI coding agents integrated into the software development lifecycle and human review workflows.

TypeScript React NodeJS NestJS GCP Cloud Run Workflow Management Pub Sub PostgreSQL Firestore BigQuery GitHub Actions Grafana Alloy Loki Grafana AI Agents CI CD

Senior Full Stack Developer

AgileEngine

Nov 2024 - Nov 2025 (1 year)

Worked with a healthcare client on a complete dental practice management platform covering clinical, administrative, scheduling, billing, and financial workflows. Built a real time AI voice agent that handled calls from leads and patients, using LiveKit, Deepgram, ElevenLabs, Telnyx, and Twilio.

Software Architect / Senior Full Stack Developer

DBServer

Jan 2021 - Nov 2024 (3 years 10 months)

Worked as a Software Architect and Senior Full Stack Developer on critical systems, defining application and service architecture with product and engineering teams. Built modular frontends, backend APIs, and distributed services with TypeScript, JavaScript, React, Next.js, Node.js, and NestJS.

TypeScript JavaScript React Next.js NodeJS NestJS AWS Azure Microservices Event Driven Architecture AI Chatbots RAG OCR Pgvector Azure AI Search Vertex AI Pinecone OpenAI Gemini Claude Ragas CI CD

Senior Full Stack Developer

Unicesumar

Jun 2018 - Jan 2021 (2 years 7 months)

Built and maintained full-stack applications supporting university operations, working across frontend, backend, integrations, and relational data. Contributed to technical design, feature delivery, deployment, monitoring, and the ongoing modernization of production systems.

Fullstack Development Frontend Backend Integration Relational Databases Technical Design Deployment Monitoring

Junior Full Stack Developer

OH Solutions

Jan 2016 - May 2018 (2 years 4 months)

Built and maintained business web applications across frontend, backend, APIs, and relational databases, establishing a foundation in end-to-end software delivery.

Fullstack Development Frontend Backend APIs Relational Databases