abuja, ng · utc+1 · 7+ yrs in production · remote-first
Senior AI Security & LLM EngineerFounder, Sether
Streaming PII redaction for production LLM APIs
$ openai.chat.completions.create(stream=true)
"Hi, I'm Adaeze Okafor — card 4242 4242 4242 4242 was charged twice. Reach me at adaeze.o@gmail.com."
✓ 3 entities tokenised before the model boundary · GDPR Art. 28 · SOC 2 CC6.7
I help teams ship production LLMs and copilots without turning customer data into a compliance incident: boundary controls, evidence for auditors, and safer retrieval and agents.
- Production LLM & AI application security — PII redaction, logging, and boundary controls that satisfy LLM security, AI governance, and GDPR / SOC 2 / HIPAA / EU AI Act expectations.
- Founder of Sether — open-source, streaming-native redaction for AI apps (@raeven-co/sether on npm, MIT). Sensitive fields are tokenised before they cross your trust boundary to model providers.
- Senior Engineer, Must Company — high-traffic crypto / fintech product (70K+ DAU), NestJS, AWS, and production AI features for a Seoul-headquartered team; secure RAG, agents, and Model Context Protocol (MCP) with LangChain and LangGraph.
- Rust plus full-stack delivery — supply-chain and infra security tools on crates.io and npm, alongside TypeScript, Node.js, React, Next.js, and Flutter, so I can own APIs, dashboards, and mobile surfaces end to end.
Featured Projects & Open Source
Explore my portfolio of production applications, AI-powered tools, and open-source security packages. From marketplaces serving thousands of users to developer tools protecting software supply chains.
Sether
Streaming-native PII redaction for AI applications. Tokenizes sensitive data before it reaches OpenAI/Anthropic, restores it transparently in the response. GDPR Art. 28, SOC2 CC6.7, HIPAA, and EU AI Act compliance evidence built-in. Published on npm (@raeven-co/sether) and PyPI (sether), MIT.
Live sandbox1.6k/30d
Raeven Reader
Cross-platform intelligence suite: universal reader, web extractor, and meeting notes — Flutter UI, Rust core (PDF/DOCX/MD + prompt-injection sanitizer), Next.js admin, Supabase backend. Built for performance and privacy at the edge.
GitHubnpm_sentinel
Professional-grade security tool protecting development environments from supply chain attacks. Analyzes lifecycle scripts and cross-references npm registry metadata.
crates.io7/30d
rust_secure_dependency_audit
Comprehensive auditing tool for Rust dependencies. Provides health scoring, license analysis, and footprint estimation for secure software supply chains.
crates.io8/30drag-poison-guard
Sanitizes external content to prevent Indirect Prompt Injection in RAG systems.
npmjs.com138/30dhallucination-validator
Validates AI outputs for linkrot, dangerous code, and hallucinations.
npmjs.com68/30d
advanced-env-manager
Secure environment variable management for Node.js. Features AES-256 encryption, AWS Secrets Manager integration, and strict schema validation.
npmjs.com49/30dsether (Python)
The Python port of Sether — streaming PII redaction for AI apps. Sync and async streaming, with httpx / ASGI / WSGI / OpenAI / Anthropic integrations. Faithful 1:1 port of the TypeScript engine. Published as sether (MIT).
pypi.org
mobile_secrets_vault
Robust Python package for managing secrets in mobile backends. Diverse encryption, versioning, and audit logging for FastAPI and Django applications.
pypi.org98/30d
advanced_image_processing_toolkit
Flutter package for AI-powered image processing. Features real-time filters, object recognition (ML Kit), and augmented reality capabilities.
pub.dev363/30dskeletonizer_plus
Production-quality Flutter package for automatic skeleton loading states with shimmer animations.
pub.dev237/30d
flutter_biometric_crypto
Enterprise-grade biometric encryption for Flutter. Secures small secrets using hardware-backed key storage (Android Keystore / iOS Secure Enclave).
pub.dev58/30dRaeven Marketplace
AI-powered multi-vendor marketplace platform connecting buyers, sellers, and delivery drivers. Built with Flutter, Node.js, and AI analytics.
raevenmarket.com.ng
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