Felipe Fernandes — Systems & AI Engineer felipeofdev-ai

Felipe Oliveira Fernandes · Backend / Agent Systems Engineer
São José dos Campos, SP · Brasil · Remote · felipe.of.dev@gmail.com

About · Mission · Stack · Projects · Stats · Raid · Hire

Backend engineer building production APIs, data systems, and agent pipelines — 4+ years shipping since Sep 2022. I design systems that hold up under real traffic, real data, and real review.

About

╔══════════════════════════════════════════════════════════════╗
║  FELIPE OLIVEIRA FERNANDES                                   ║
║  Role .......... Backend / Agent Systems Engineer            ║
║  Tenure ........ Independent Backend · Sep 2022 → 4+ years   ║
║  Location ...... São José dos Campos, SP · Brasil · Remote   ║
║  Languages ..... PT native · EN professional working level   ║
╚══════════════════════════════════════════════════════════════╝

Skill	Level	Focus
Backend	████████████████████░	TypeScript/Node · Python · FastAPI
System Design	██████████████████░░	Multi-tenant SaaS · agent orchestration
API Design	███████████████████░░	REST · tRPC · Zod validation
Databases	██████████████████░░	PostgreSQL · Neo4j · Redis
Problem Solving	████████████████████░	Graph queries · CI · incident patterns
Collaboration	█████████████████░░░	Code review · docs · async remote teams

Career path: WR IT / Vox2You · Arsenal Elevadores · Independent Backend since Sep 2022.

Mission Briefing

What I do — design and ship backend systems end to end.

Domain	Deliverables
Backend Systems	REST services, async workers, multi-agent pipelines
API Design	Typed contracts, validation, versioning, error models
Database Architecture	PostgreSQL schemas, graph modeling, migration discipline
Performance	Query tuning, caching, reproducible Docker environments
Security	RBAC, LGPD-aware design, audit trails, signed events

Currently: production SaaS (multi-tenant), CRM platforms, fraud-detection APIs, and OSS contributions across Clojure, Python, and home automation.

Inventory

Languages

Data & Infra

Agents & QA

Frontend touch

Cloud & Ops

Featured Projects

Selected projects — real repos, honest scope.

TrustHire · Job-posting fraud detection


Problem	Scam job listings waste candidate time and erode trust in hiring platforms.
Solution	AI pipeline with structured output, multilingual signals, and Stripe-backed SaaS flow.
Impact	End-to-end fraud scoring API ready for production integration.
Stack	Python · FastAPI · PostgreSQL · Stripe
Link	github.com/felipeofdev-ai/trusthire

Meridian · Immutable audit trail


Problem	Regulated workflows need tamper-evident event history.
Solution	Append-only event chain with Ed25519 signing and governance hooks.
Impact	Audit integrity engine suitable for compliance-sensitive backends.
Stack	TypeScript · Fastify · PostgreSQL
Link	github.com/felipeofdev-ai/Meridian

BridgeTrace-AI · Financial graph intelligence


Problem	PIX and blockchain flows need traceability for suspicious patterns.
Solution	Graph-based transaction analysis with generative-AI-assisted reasoning.
Impact	Trace engine for financial risk and pattern detection.
Stack	Python · FastAPI · PostgreSQL
Link	github.com/felipeofdev-ai/BridgeTrace-AI

PHILO AI OS · Multi-agent platform


Problem	Single LLM calls don't scale to complex autonomous workflows.
Solution	2,000+ agent orchestration with multi-LLM routing and failure recovery.
Impact	Production-grade agent OS with modular financial and cognitive layers.
Stack	Node.js · Python · TypeScript · Redis
Link	github.com/felipeofdev-ai/philo-ai-os

Agent kits · 2026

Project	Focus	Link
forge-mcp-server	MCP tooling	repo
agentic-rag-cite	Evidence-based RAG	repo
hitl-langgraph-kit	Human-in-the-loop graphs	repo
secure-ship-kit	Secure shipping patterns	repo
SNES Quest	Interactive career portfolio	play

Battle Results

GitHub contribution streak for felipeofdev-ai

_{Stats refresh on demand · snake updates daily at 03:00 UTC}

Boss Raid

Turn-based battle in this README — comment commands on a Boss Battle issue; Actions update the arena below.

╔══════════════════════════════════════════════════════════════╗
║           ⚔  README BOSS RAID — TURN-BASED RPG  ⚔           ║
╠══════════════════════════════════════════════════════════════╣
║  World Boss: 🏰 Legacy Monolith                            ║
║  "Every merged PR weakens the monolith. Your move, knight."   ║
╚══════════════════════════════════════════════════════════════╝

Command	Action
`/attack`	Strike — 12–28 dmg
`/defend`	Guard — −50% incoming dmg
`/special`	Code Review — heavy hit, higher risk
`/heal`	Coffee Break — +18 HP

▶ Start Boss Battle — comment your move on the issue.

Full adventure → SNES Quest

Leaderboard

Rank	Knight	Boss	Turns	Score
—	Be the first victor	—	—	—

Defeat a boss in a Boss Battle issue to claim the arcade.

Training Ground

Currently learning & sharpening:

LangGraph checkpointing and human-in-the-loop agent flows
Stagehand browser automation patterns for resilient ATS agents
Nubank Clojure ecosystem (clojuredocs, matcher-combinators)
OpenTelemetry for agent observability

Player Style

How I work

Practice	Approach
Agile	Scrum/Jira · one commit per ticket · iterative delivery
Reviews	Documented PRs · Loom walkthroughs when helpful
Docs	README-first · API contracts · runbooks for ops
Testing	Unit tests on algorithms/OSS · Zod at boundaries
Deploy	Docker reproducibility · CI/CD · Vercel/AWS hands-on

World Map

Honest career phases — no inflated timelines.

PHASE 1 · FOUNDATIONS          PHASE 2 · TEAMS                 PHASE 3 · OSS & AGENTS
─────────────────────          ───────────────────             ─────────────────────
Backend craft · APIs           WR IT / Vox2You SaaS            Nubank Clojure campaign
Independent · Sep 2022         Arsenal Elevadores CRM          AutoVaga · agent kits
└─ 4+ years remote             └─ multi-tenant · RBAC          └─ evidence pipelines

Stage	Period	Focus	Outcome
Foundations	Sep 2022 →	Python/FastAPI · Docker · PostgreSQL	Independent Backend 4+ yrs
WR IT / Vox2You	2026	Multi-tenant SaaS · Neo4j · tRPC	Full-stack delivery at scale
Arsenal Elevadores	2026	CRM · RBAC · internal ops	Business-critical platforms
OSS campaign	2026	HA · Algorithms · Nu · Stagehand	Maintainer-reviewed contributions

High Scores

Real OSS contributions — merged and open, labeled honestly.

Home Assistant
#178110 MERGED
_{PARALLEL_UPDATES · quality-scale}

TheAlgorithms/Python
17 merged
_{Algorithms · unit tests · CI}

Nubank clojuredocs
#88 open
_{Re-review ready}

matcher-combinators
#244 open
_{entry-embeds opt-in}

More open contributions

Org	PR	Status
Stagehand	#2561	Open
NVIDIA Model-Optimizer	#2058	Open
GitHub CLI	#14057	Open
Nubank ecosystem	mockfn#15 · nodely#60	Open

Co-op

Available for hire Backend Developer · Senior–Mid · Remote & Hybrid · Brasil (UTC−3)

╔══════════════════════════════════════════════════════════════╗
║  READY TO JOIN YOUR TEAM?                                    ║
║  → Email · LinkedIn · Portfolio above                        ║
║  Backend · APIs · PostgreSQL · Agent systems · OSS mindset   ║
╚══════════════════════════════════════════════════════════════╝

Game Over

╔══════════════════════════════════════════════════════════════╗
║                      S T A F F   R O L L                     ║
╠══════════════════════════════════════════════════════════════╣
║  Backend Developer ........... Felipe Oliveira Fernandes     ║
║  Stack ...................... TypeScript · Python · Postgres ║
║  Agent Systems .............. LangGraph · Stagehand · Zod    ║
║  Portfolio .................. felipeofdev-ai.github.io       ║
║  Special Thanks .............. OSS maintainers · reviewers   ║
╚══════════════════════════════════════════════════════════════╝

— felipeofdev-ai · Portfolio · SNES Quest · Labs —

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