CV
Marcus Filipe Quirino · Porto Alegre, Brazil
Full-stack software engineer specialized in mission-critical payment and billing systems. I build AI systems that help me ship better and faster.
Download CV as PDFExperience
Founder · Southlike Software
2023 – PresentBoutique AI automation agency for businesses. Agents, workflow automation and systems that connect AI to the real world. Not chatbots answering questions: systems that do the work on their own.
Developer · ADP
2026 – PresentPromoted to own more of the billing platform. Same mission-critical systems, wider scope: I drive improvements across the pipelines and services I built, and carry more of the architecture and reliability decisions for the team.
- Keep raising invoice-data accuracy and closing the remaining revenue-leakage gaps.
- Build AI tooling and workflows that help the team ship better and faster.
Associate Developer · ADP
May 2024 – 2026Mission-critical payment and billing systems for a global marketplace. Event-driven architectures built to scale.
- Led a billing data-refinement pipeline end to end over two quarters: requirements, data modeling, architecture and implementation. It fixed a revenue-leakage problem caused by unknown customer status across multiple sources of truth.
- Result: 60% better invoice-data accuracy and over $1M in annual revenue recovered.
- Built big-data export pipelines with Databricks feeding the transactional database, cutting query time from 11 s to 100 ms.
- Refactored the backend with retry and failover, and monitored production through Splunk.
Developer, internship · ADP
Aug 2022 – May 2024Worked with a global team maintaining and modernizing a microservices ecosystem in Node.js.
- Upgraded dependencies and refactored codebases to current standards.
- Helped move infrastructure from VMs to Kubernetes, containerizing and testing the components of an entire business domain.
Education
Software Engineering, PUCRS. Studied software engineering in Porto Alegre.
Skills
- TypeScript
- Node.js
- Next.js / React
- Tailwind
- AI SDK & agent workflows
- Docker
- AWS
- Databricks
- Event-driven architecture
Full history on LinkedIn.
