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Hi, I'm Rafael Fachinelli.
A Tech Lead who writes code: React, Java, and distributed systems at scale.
Hands-on work in large retail and commerce operations, including the technical leadership of an ecosystem with more than 40 microservices.
Stack: React, Next.js, TypeScript, Java, Spring Boot, Kafka, GCP, Datadog, and GitHub Actions. Decisions documented with ADRs and C4 diagrams.
Resume
Resume and career summary
Download my resume as a PDF or see my full background on the resume page.
Rafael Fachinelli is a Brazilian Tech Lead and software engineer from Ferraz de Vasconcelos (SP). He has more than five years of experience with React, Next.js, Java, and Spring Boot in retail and commerce operations, and has technically led an ecosystem of more than 40 microservices.
- Years of experience
- 5+
- In software development, from junior developer to tech lead.
- Years as tech lead
- 2+
- Technical leadership, architecture decisions, and direct support to the team.
- Microservices under technical leadership
- 40+
- The distributed Instalações e Reformas ecosystem at Leroy Merlin.
- Innovation event awards
- 2
- 1st place at Ideathon and 2nd place at Inovathon São Paulo, both in 2020.
Experience
Where I built my career
Retail, digital services, and industrial automation: different contexts, the same care for reliable delivery.
Leroy Merlin
From junior developer to tech lead: React, Java/Spring Boot, and the Instalações e Reformas ecosystem.
Markit3D
A business website for a 3D printing company, focused on presenting the service and driving contact.
Flex
Systems, embedded C/C++ software, and MVP development in an industrial context.
Selected work
Projects that show range and business context
One in-depth case on technical leadership and two projects that show my web and systems foundation.
Instalações e Reformas
Case study about technical leadership in a service ecosystem involving partner onboarding, orchestration, observability, and delivery quality.
Markit3D
A business-oriented website experience for a 3D printing service, focused on presentation and conversion.
Flex Sewing Machine
A project that reflects my earlier systems and automation background, including product and MVP thinking.
Articles
What I learned in practice, no fluff
Short pieces on testing, architecture, and technical leadership, written from what I have lived day to day.
How much architecture does your application need? From monolith to two regions in 11 questions
One application and a database with backups go further than it seems. I built a tool that shows, answer by answer, when each extra piece starts to pay for itself.
The test pyramid in practice: how two ADRs standardized quality
Unit tests at the base, e2e at the tip. What I learned turning the test pyramid into a standard for backend and frontend.
Profile
A hands-on Tech Lead, from code to architecture decisions
I combine close-to-the-code work with technical leadership, decision records, observability, and delivery quality.
Read more about meLet's talk
Have a role or project in mind?
If you are looking for a tech lead or full-stack engineer with experience in distributed systems and retail delivery, send me a message.
Contact me