Petrus Antonio Barbosa Pradella
Software Engineering Specialist & Software Architect · Java & React
Professional Summary
Computer Scientist (UNESP), Software Engineering Specialist and Software Architect with over 10 years of Java experience and strong work with React, Next.js and Spring Boot, mostly as a full-stack developer and architect.
Most recently I worked at Livelo as a developer and software architect in the financial sector, focused on technical leadership and on planning integrations with partners such as Sydle One, Serasa and SAP. I also took part in applied-AI initiatives, including integrations with tools such as Atlassian, Jira and Dynatrace, plus the definition of standards and the delivery of MCP-based solutions✦ Applied AI ✦The PagLiv MCP server opens 6 controllership services to an AI client as 180 read-only tools, under 14 independent guardrails that guarantee security and auditing..
I am deeply involved in open source, with thousands of verifiable contributions✦ Open trail ✦8,000+ public, verifiable GitHub contributions since 2015: commits, pull requests and reviews, measured on the profile itself. on GitHub and the maintenance of a framework used in production by 200+ clients✦ In production ✦EverNifeCore runs daily for 200+ clients, centralizing shared code across multiple plugins in a single solution.. As an independent developer I have also delivered dozens of complete projects, from e-commerce platforms and APIs to applications and infrastructure solutions.
Work Experience
Compass UOL (Livelo) · Software Engineering Specialist & Software Architect
Nov 2024 – Sep 2026
- Designed and shipped the PagLiv MCP server in Java 25 and Spring Boot, integrating 6 services and their databases for an AI client as 180 tools✦ Applied AI ✦Most of the tools generate themselves: a YAML catalogue describes the 88 tables across the 6 sources (Oracle and PostgreSQL) and produces the searches, doubling as the SQL allowlist and as the documentation the model reads. read-only, under 14 independent controls that keep any call from writing.
- Built LivProxy, an annotation-driven proxy across the ~6 internal BFFs that retired manual DTO handling: tasks that took ~1 week dropped to ~30 min✦ Flow gain ✦LivProxy swapped manual DTO handling across the ~6 internal BFFs for an annotation-driven proxy: tasks that took ~1 week now take ~30 min..
- Designed the Delta System: field-level form auditing (who edited, which field, when) with efficient, searchable storage.
- Architected liv-sydle-bridge in project ECOFIN, a bridge between Livelo's intranet and the Sydle One platform: bidirectional normalisation of a large message flow fed by RabbitMQ and SQS, a single egress controlled by an API Gateway and an asynchronous sending engine with virtual threads, precise locks and auditing, ordering 300K+✦ Scale ✦The engine funnels internal calls into a dedicated microservice, persists to MongoDB and emits in order; virtual threads take a per-message lock (vertical scale) and run across dynamic pods (horizontal scale) with no contention, moving 300K+ messages/day on average. messages/day: virtual threads scale it vertically, dynamic pods horizontally, with no lock contention.
- As the team’s software architect I led the team: refined and distributed the work (hundreds of items across Jira and Confluence), reviewed solution designs and code, set the technical standards and planned the partner integrations (Sydle One, Serasa, SAP) as two-to-three-month execution plans.
- Wove Amazon Q and Kiro (the latter via MCP in Jira) into daily delivery over GitLab CI, among the company’s first AI initiatives, and built ~3 Dynatrace observability dashboards.
FinalTech Software · Fullstack Developer (Freelance)
Jan 2019 – Present
- Shipped more than 30 projects✦ Freelance volume ✦more than 30 projects for small businesses: the years of freelance work that now sustain EverNifeCore’s 200+ daily clients. for small businesses: complete e-commerce platforms (front, back, DB, DNS) with PayPal and PagSeguro payments.
- Ran full-cycle infra (VPS, DNS, Docker, DokPloy, GitHub Actions, WSL) and explored LLMs hands-on, building and consuming MCP servers with Claude Code.
2iM · Fullstack Developer
Jun 2023 – Jun 2024
- Designed and built a dynamic form-creation engine with 20+ reshapeable field types, retiring hand-coded pages and raising productivity by 200%✦ Business impact ✦The idea and the structure were mine: dynamic, reshapeable fields that replaced the copy-paste of hand-coded pages, more than doubling the clinical system’s productivity..
- Integrated healthcare tools into the internal clinical flow: Google FHIR and Camunda, via Java integration.
Projects
- PagLiv MCP Server (Livelo) · Read-only MCP server in Java 25 and Spring Boot over 6 controllership services: 180 tools✦ Applied AI ✦A YAML catalogue of 88 tables generates most of the tools and doubles as the SQL allowlist; independent guardrails keep any call from writing. for an AI client, under 14 independent guardrails (SQL parser, allowlist, row cap, timeout, plan cost and a read-only transaction) that block any write.
- ECOFIN (Livelo) · Integration bridge between Livelo and Sydle One: bidirectional normalization, single egress via API Gateways and a messaging engine on MongoDB and virtual threads, 300K+ messages/day✦ Scale ✦Virtual threads scale the sending vertically and dynamic pods horizontally; each worker takes a per-message lock, with no contention. in order, across dynamic pods.
- EverNifeCore (github.com/EverNife/EverNifeCore) · Java framework (Bukkit/Spigot + Forge) centralizing shared code across plugins; used daily by 200+ clients✦ In production ✦EverNifeCore runs daily for 200+ clients, centralizing shared code across multiple plugins in a single solution..
- Full E-Commerce (tratosaudeanimal.com.br) · Two sites unified into one system (Next.js + Spring Boot), multilingual, with pricing, inventory and payments.
Education & Languages
Bachelor’s in Computer Science · Unesp, Presidente Prudente · 2021 · Sydle One: full platform course
Portuguese (Native) · English (Fluent)
Portuguese (Native) · English (Fluent)
Skills
Languages: Java | TypeScript | JavaScript (ES6+) | Python | Flutter | SQL
Frameworks: Spring Boot | React | Next.js | Node.js | Hibernate | TanStack Query
Architecture & Integration: Microservices | BFF | Virtual threads | RabbitMQ | API Gateway | Google FHIR (HL7) | Camunda | Sydle One | PayPal | PagSeguro | Mercado Pago | Stripe
Cloud/DevOps: AWS | GCP | Docker | Kubernetes (pods) | GitHub Actions | GitLab CI | DokPloy | Linux | Cloudflare (DNS) | WSL | Dynatrace
AI/LLM: Amazon Q | Kiro | Claude Code | Spring AI | MCP (production server, build & consume)
Databases: PostgreSQL | MySQL | MongoDB | OracleDB | SQLite
Tools: Git | Jira | Confluence