AI integrated into legacy systems
Bringing prompt engineering and LLM workflows into established Java/Oracle platforms — not proofs of concept from scratch, but practical AI in the systems where the business already runs.
Full-Stack Software Engineer · AI Integrator for Legacy Systems
Cícero Silva
I tell computers how they should behave.
Trajectory
Trajectory
More than 20 years in technology — from mobile to a solid core in Java and Oracle, through to full-stack delivery that brings AI into legacy systems and speeds real outcomes.
- 01
Foundations
Mobile applications
Early career building mobile software under real device constraints — the discipline that still guides how I deliver systems.
- 02
The core years
Java & Oracle
Years of experience in the Java ecosystem and with Oracle databases — SQL, durable backends, and legacy platforms organizations still run every day.
- 03
Today
Full-stack with AI on legacy
Spring Boot and React on the surface; AI behind the scenes — integrating LLMs into Java/Oracle environments to accelerate refactoring, validate business rules, and optimize delivery.
Highlights
Where I focus
AI in legacy systems, full-stack delivery with AI support, and project-management solutions — traditional and agile.
Full-stack with AI support
Building with Spring Boot and React while using AI to optimize results: faster refactoring, more precise reviews, and a faster delivery pace without sacrificing rigor.
Project management solutions
Experience building solutions for traditional and agile project management — supporting planning, execution, and delivery across both classic and iterative approaches.
Skills
How I work
Legacy depth, full-stack reach, AI as a lever for better outcomes — oriented to international markets and project-management platforms.
Full-stack software engineer with more than 20 years in technology. Years of experience with Java and Oracle SQL, earlier mobile development, and a current focus on integrating AI into legacy systems and optimizing full-stack delivery with Spring Boot, React, PostgreSQL/pgvector, and S3-compatible storage.
AI integration & delivery
- AI integration into legacy Java/Oracle systems
- Prompt engineering & LLM workflows for optimized results
- Technical mentoring of multidisciplinary teams
Backend & frontend
- Java
- Spring Boot
- TypeScript
- React
Testing
- JUnit
- Mockito
- Cucumber
- JaCoCo
- Vitest
Data & storage
- Years of experience with Oracle (SQL)
- PostgreSQL & pgvector
- S3-compatible object storage
Artificial intelligence
- Prompt engineering
- LLM workflows for development optimization
- Anthropic, OpenAI, Gemini
Languages
- English — advanced reading & writing, daily active conversation
Education
Education
Formal foundations for a long career in systems.
Bachelor of Computer Science
Universidade Federal do Rio Grande do Sul (UFRGS)
Further study
Prompt engineering — applied to software engineering practice
Contact
Get in touch
Open to conversations about AI in legacy systems, full-stack delivery, and project-management solutions.
Resources
Selected resources
References I check often.