Freelance AI Data Annotator
OUTLIER AI · HANDSHAKE AITraining and evaluating AI systems against strict rubrics annotation, model output evaluation, and rubric-driven quality work across multiple platforms.
Lagos, Nigeriaavailable for work
Nero — Freelance Builder and Product Designer in Lagos. I build the thing,
then I ship it.
freelance builder and product designer working across Web3 development, AI data annotation, and product design.
fig. 1 — the deskhover or tab a thing
01
About
who's holding the penI work across three things that turn out to overlap more than they should: training and evaluating AI systems for a living, building freelance web and Web3 products for clients, and product design; user research, wireframes, high-fidelity interfaces, and product strategy. Most days that means judging model output against a rubric in the morning, designing a user flow in Figma at lunch, and writing a Solidity contract or a Lovable build prompt by evening.
I am based in Lagos, and a lot of what I build starts as a hackathon submission before it becomes something someone actually pays for.
I did not come up through a single track. Data annotation and evaluation work taught me how strict a rubric can be. A product design internship at Vephla University taught me to frame a problem before touching pixels: user research, competitor analysis, wireframes, and high-fidelity interfaces, all backed by documentation. Roles at Pira-Tech & Leadway Health taught me the other end: shipping something a business actually depends on. The freelance, Web3, and design work is where those habits meet.
- Pira-Tech
- Leadway Health
02
Experience
where I've workedongoing
Product Design Intern
Vephla UniversityWorked across user research, competitor analysis, wireframing, high-fidelity interface design, collaboration, and product documentation.
03
Build log
what I shippedRedline
LIVEA contract risk analyzer for freelancers, built for the Rampamble Hackathon. Runs a dual-LLM backend, Claude and Gemini cross-checking each other, to flag risky clauses before a freelancer signs. Deployed to Vercel with a public repo.
https://github.com/Memphiz33/Redline- Next.js
- Claude + Gemini
Independent security audit
AUDITEDAudited Lorenzo Protocol's TGE and vesting contracts on BNB Smart Chain without being asked to. Found eight issues, two of them high severity, and disclosed all of them responsibly by email and a GitHub issue before writing this up anywhere.
- Solidity
- Lorenzo Protocol
Launchpad prototype on Arc
DRAFTA crypto launchpad built as a learning exercise on Arc, Circle's EVM-compatible L1. Solidity contracts, a Hardhat test suite, and a self-contained frontend styled like an actual ledger book rather than a typical dashboard.
- Solidity
- Hardhat
Wayne Catering
LIVEA lead-generation site for my aunt's catering business. WhatsApp booking built in, SEO cleanup, a logo, and a Behance and X presence to back it up. The kind of project where the client is also family, so the pricing conversation matters as much as the build.
- Lovable
Inference Angels puzzle hunt
IN PROGRESSAn NFT puzzle hunt (#7021) that comes down to finding a three-word phrase matching a target hash prefix. Writing a vectorized SHA-256 brute-forcer in C using AVX-512 to search fast enough for it to be worth trying.
- C
- AVX-512
- SHA-256
Voiyage
LIVEBoutique travel agency site built around a boarding-pass motif, ticket-stub cards, real destination photography, and full working newsletter/enquiry backends on Supabase.
https://voiyage.lovable.app- Lovable + Supabase (TanStack Start)
04
The ledger
web3 workVeriPact
LIVE — TESTNETAn AI-powered escrow platform for freelancers and clients. Smart contracts hold funds until milestone conditions are verified, an AI checks the work against the agreement, and a 'Trust Passport' carries a freelancer's on-chain reputation from one job to the next.
The VeriPactEscrow contract is live on Base Sepolia. Wallet connect, agreement creation, and USDC milestone funding are wired up and working end to end. Dispute resolution and timeout handling are what is left.
0xD8bb8E069831aFDf69DaC8195540A10aDAF48299VeriLeaf
HACKATHON BUILDAn environmental impact platform built to feel like a premium SaaS product rather than a crypto app: the blockchain stays invisible, the interface does not. Pitched as Duolingo, Strava, and GitHub for environmental impact, with tier names drawn from nature (Seed through Earth Steward) instead of gamified badges.
Built for the Brainwave 2026 Hackathon on Lovable, with thirteen page-by-page build prompts, a full WCAG AA color system, a pitch deck, and a demo script written alongside the product itself.
05
Pages
the novellanovella
Meridian
self-published — kdp
MERIDIAN is a techno-thriller novella, about twenty thousand words, that starts with private aviation repossession work and escalates into international espionage, set in Nairobi. Full manuscript: characters, an eleven-chapter outline, a continuity pass, and a KDP listing with an original cover, all built out and self-published on Amazon.
06
Services
Web3 / smart contracts
Solidity development and contract review across Sui, Base, BNB, Solana, and Arc. Escrow logic, token launches, and independent audits.
Product builds on Lovable
Concept to working prototype: design tokens, page-by-page build prompts, and a deployable product, usually inside a hackathon timeline.
Product design & UX strategy
User research, competitor analysis, and problem framing, taken through user flows, wireframes, and high-fidelity interfaces to clickable prototypes. Landing pages, design systems, and brand identity work for small businesses and early-stage products, in Figma and in code.
AI data and evaluation
Annotation, model output evaluation, and rubric-driven quality work, drawing on experience across Outlier AI, and Handshake AI.
Get in touch with what you are building and I will send a scope and a price.
07
Off the clock
gaming contentBuilding a following across TikTok, YouTube, Twitch, Instagram, and X, funneling short-form clips toward the longer streams. Still early, still growing.
Same toolbox as above: Windows and Git Bash, Lovable, Figma, n8n, MetaMask.
- TikTok
- YouTube
- Twitch
- X
08
Ask the file
questions about my workopening the file…
09
Contact
say helloTell me what you're building, when you need it, and what budget you're working with. I answer within a day, usually less.
memphiznero@gmail.com