abuja, ng · utc+1 · 7+ yrs in production · remote-first

Senior Backend & Product EngineerFounder, Sether

TypeScript · NestJS · Next.js · AI security · Flutter · Rust

sether · streaming redactionlive

$ 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 build the backend, connect the product, and stay responsible for what happens after launch. Seven years of hands-on engineering, commercial product ownership, and open-source work across fintech, AI security, and mobile. An MBA helps me connect technical decisions to the business problem they need to solve.

Product Owner, MPC blockchain product line — technical delivery across a self-custody wallet and blockchain onboarding. The waitlist dApp shipped to BNB Smart Chain mainnet in August 2026. Separately, my backend work at Must Company / MSQUARE Global supports a fintech platform serving 90,000 daily active users.
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.
Six products shipped 0→1 — Fameely (family digital-safety platform, live), StreetAI (community-safety intelligence), MyLekki (client delivery), Sether, Raeven Reader and Raeven Marketplace. Concept notes, data models, pricing and launch surfaces included, not just the code.
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.

Remote · open to Germany relocationllm & ai securitysecure rag · mcptypescript · rust · flutter

Engineering work you can explore

Commercial product delivery, independent products, and published packages. For the decisions behind the work, start with the selected case studies.

MPC (globalmpc.tech)
Technical Product Owner for a self-custody Web3 wallet and blockchain onboarding. Shipped the waitlist product with sponsored on-chain check-in to BNB Smart Chain mainnet in August 2026, after multi-round smart-contract security reviews and a zero-trust release checklist. Own roadmap, OKRs and release decisions.
globalmpc.tech
Fameely
Family digital-safety and device-governance platform, founded and shipped from concept note to live product. Next.js parent dashboard and admin console plus a dual-role Flutter app: a child-device agent that pairs with a one-time code and enforces policy offline, and a parent monitor for screen time, rules and requests. Ships with a full demo mode on seeded data, built deliberately as the sales surface.
fameely.vercel.app
Trackshon
Independent product for understanding a product URL, prioritizing improvements, and finding relevant public conversations. Provides response guidance while leaving publishing decisions to the user. Source coverage and matches vary.
Try the preview
Sether
Streaming-native PII redaction for AI applications. Tokenizes sensitive data before it reaches OpenAI/Anthropic, or swaps it for realistic, reversible decoys (alias engine, new in 0.7.0), and restores it transparently in the response. Includes controls and evidence to support privacy reviews; using a library alone does not establish regulatory compliance. Published on npm (@raeven-co/sether) and PyPI (sether), MIT.
Live sandbox
92/30d
Sether Shield
Chrome extension that catches personal data in your prompt before it reaches ChatGPT, Claude, or Gemini, and can swap it for realistic, reversible decoys instead of masking it. Right-click redact/mask/decoy on any selection, watchlist file import with per-term handling, and restore that survives page reloads. 100% local, zero network calls; built on the open-source @raeven-co/sether engine.
Chrome Web Store
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.
GitHub
npm_sentinel
Professional-grade security tool protecting development environments from supply chain attacks. Analyzes lifecycle scripts and cross-references npm registry metadata.
crates.io
rust_secure_dependency_audit
Comprehensive auditing tool for Rust dependencies. Provides health scoring, license analysis, and footprint estimation for secure software supply chains.
crates.io
9/30d
rag-poison-guard
Sanitizes external content to prevent Indirect Prompt Injection in RAG systems.
npmjs.com
33/30d
hallucination-validator
Validates AI outputs for linkrot, dangerous code, and hallucinations.
npmjs.com
9/30d
advanced-env-manager
Secure environment variable management for Node.js. Features AES-256 encryption, AWS Secrets Manager integration, and strict schema validation.
npmjs.com
27/30d
sether (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
28/30d
mobile_secrets_vault
Robust Python package for managing secrets in mobile backends. Diverse encryption, versioning, and audit logging for FastAPI and Django applications.
pypi.org
39/30d
advanced_image_processing_toolkit
Flutter package for AI-powered image processing. Features real-time filters, object recognition (ML Kit), and augmented reality capabilities.
pub.dev
151/30d
skeletonizer_plus
Production-quality Flutter package for automatic skeleton loading states with shimmer animations.
pub.dev
242/30d
flutter_biometric_crypto
Enterprise-grade biometric encryption for Flutter. Secures small secrets using hardware-backed key storage (Android Keystore / iOS Secure Enclave).
pub.dev
46/30d
Raeven Marketplace
AI-powered multi-vendor marketplace platform connecting buyers, sellers, and delivery drivers. Built with Flutter, Node.js, and AI analytics.
raevenmarket.com.ng
Shelta Panacea
Lead mobile, AI and full-stack engineering across Shelta: Flutter financial and property workflows, backend API integration, and a Next.js/TypeScript AI platform with streaming chat, PostgreSQL/pgvector retrieval, voice transcription and CRM tooling.
myshelta.com