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Open to what's nextLagos, Nigeria
Kingsley Nweke, wearing glasses and a black shirt, photographed against a warm brown backdrop.

Software engineer. I buildbackends that stay up, or payment rails that balance, or AI that isn't a demo, or whatever I haven't tried yet

Four years in, and the part I still like best is the bit I haven't figured out yet.

See what I’ve builtTake my résumé

About

Still mostly curious

I got into this the way a lot of people do — by breaking something and needing to know why. That is still, more or less, the job.

Since then: backends for a healthcare platform, smart contracts that move real money, and lately a lot of time inside AI infrastructure. Different worlds, same pull. I want to know how the thing actually works underneath, not just how to call it.

What I'm after next is less about a particular stack and more about a problem I haven't met before. Most of what I'm good at now, I was useless at eighteen months ago — and I'd like to keep that streak going.

  • Curious by default.
  • Quick on unfamiliar ground.
  • Allergic to hand-waving.

The road so far

Not a straight line

Client work, then smart contracts, then healthcare, then realtime, then AI infrastructure. Nobody would plan it in that order. I wouldn’t swap it either.

  1. 04/2026 — Present

    Current

    Backend Developer

    TekAIDA Consulting · Remote — Bedford, England, UK

    • Software
    • AI/ML
    • Sole backend engineer on VibeCraft, an AI creative suite. I own it end to end — first architecture sketch through to the box it runs on.
    • Node, Express and TypeScript over PostgreSQL, containerised with Docker Compose and shipped to a VPS.
    • Wrote the API reference the frontend team builds against: auth, projects, conversations, SSE streaming, pagination. If it's ambiguous, it's my fault.
    • Worked out whether self-hosting open models on our own GPUs beats paying per token. Sometimes it does — which was the interesting part.

  2. 06/2025 — Present

    Current

    Backend Developer

    HarmonyKloud · Remote — Texas, United States

    • Software
    • Backend work on a US healthcare platform used by 500+ people.
    • APIs for the parts that have to be right, and integrations with Waystar and Office Ally to keep them in sync.
    • A fair amount of unglamorous reliability work: deployment flow, error handling, the things that stop a bad night happening.

  3. 12/2024 — 12/2025

    Web3 Developer

    Genesys Tech Hub · Hybrid — Enugu, Nigeria

    • Software
    • AI/ML
    • Shipped smart contracts across three-plus projects in Solidity and Hardhat.
    • Built gNGN, a tokenised naira modelled on central-bank rules — mint, burn, pause and multi-signature approvals, all tested against the rules rather than my assumptions.
    • Helped wire contracts into a civic ID system and an AI Telegram bot during Learnable collaborations.
    • Backend team on Tutera, a multi-tenant LMS for institutions and creators.

    Nikolai Tesla Award — Web3 Student of the Year, Genesys Tech Hub (12/2025)

  4. 03/2022 — 07/2023

    Backend Engineer

    Genesys Tech Hub · Enugu, Nigeria

    • Software
    • My first real engineering job. Led the backend on client web apps and found out what shipping to a deadline actually costs.
    • Agile and Scrum, proper code review, and the habit of checking something works before calling it done.

Selected work

Five I’d happily be quizzed on

Five things, each with the part that was actually hard and an honest word on where it stands. Not a link dump.

01 / 05

  • 02/2026 — Present

    • Software
    • AI/ML

    Built with

    • TypeScript
    • Node.js 22
    • Fastify 5
    • Socket.IO
    • PostgreSQL
    • Redis
    • React 19
    • Vite
    • Tailwind v4
    • Docker
    • Fly.io
    • Groq

    WhisperBoard

    Five hundred phones, one room, no login

    Live Q&A for events. You scan a code on the screen, ask a question, and vote on other people's. The ones the room wants most go up on the projector behind the speaker. Ask anonymously and it really is anonymous — your name is never stored at all, so there is nothing to leak.

    StatusDeployed on Fly, with 202 tests behind it. The 500-socket load run that would prove it at full size hasn't happened yet.

  • 12/2025 — Present

    • Software
    • Blockchain

    Built with

    • Node.js 22
    • Express 5
    • Prisma
    • PostgreSQL
    • Next.js 14
    • Tailwind
    • shadcn/ui
    • Recharts
    • Solana
    • Anchor (Rust)
    • Cloudflare R2

    DojoPay

    Strangers, real money, and no reason to trust each other

    A marketplace on Solana where people get paid in SOL for small pieces of human judgement. Today that means picking the best image out of a set.

    All the difficulty is money that cannot drift. A task's budget is set aside the moment the task is created, every change to a balance is written down and never edited afterwards, and two people going for the last slot can't both get it.

    StatusDevnet, pre-production. Payouts are still custodial — the Anchor escrow program that fixes that is written and building, but not yet deployed or audited.

  • 04/2026 — Present

    • AI/ML
    • Software

    Built with

    • TypeScript
    • Node.js
    • Express
    • PostgreSQL
    • Python
    • FastAPI
    • Docker Compose
    • SSE
    • Groq
    • Anthropic
    • Whisper

    VibeCraft

    Four AI providers, one interface, zero refactors

    An AI creative suite. I own the whole backend. The interesting problem was never getting a model to answer — it was making it stop mattering which model answered.

    Groq, Anthropic and a self-hosted option all sit behind the same interface, and so do speech and images. Swapping one for another is a settings change, not a rewrite. That is how transcription moved to a cheaper host in an afternoon without anything else noticing.

  • 04/2025 — Present

    • AI/ML

    Built with

    • Telegram Bot API
    • Solidity
    • Smart contracts
    • NFTs

    SIMBI-AI Bot

    A study buddy that lives in Telegram and remembers you

    A Telegram bot that answers students' study questions. Underneath, who you are and what you have earned live on a smart contract, so it recognises you without keeping an account for you.

    It answered over 300 questions during its demo run at Learnable — the first time I watched strangers use something I had built.

  • 05/2025 — 06/2025

    • Software
    • Blockchain

    Built with

    • Solidity
    • Hardhat
    • ERC-20
    • Multi-signature

    gNGN Token

    A central bank's rulebook, expressed in Solidity

    A digital naira, built to follow Central Bank of Nigeria–style rules rather than whatever was easiest to code.

    Creating, freezing and destroying tokens, all of it tested, then run against approval rules that need more than one person to sign off. It mostly held up. The places it didn't were the useful part.

    StatusDeployed to Base Sepolia, which is a testnet — nothing here has ever moved real money, and it was never meant to.

And a few more

  • CivicLink(opens in a new tab)

    Decentralised civic identity. I built the contract functions behind identity creation and secure access; the prototype survived a full demo-week run.

  • Tutera

    A multi-tenant LMS for institutions and creators. I was on the backend team at Genesys Tech Hub.

  • eBuzz(opens in a new tab)

    A campus media app. I wrote the backend for registration, login and posting, then watched 50+ students use it in launch week.

  • Medbloc(opens in a new tab)

    Digital health records. API endpoints for patient data, hospital registration and scheduling, with validation and role-based access throughout.

Toolkit

What I reach for

Grouped by the problem it solves, not tipped into one pile. The AI column is the newest here, and the one growing fastest.

  • Backend & Platform

    Where most of my hours go — and where I'm hardest to surprise.

    • Node.js
    • TypeScript
    • JavaScript
    • Express
    • PostgreSQL
    • Prisma
    • MongoDB
    • Redis
    • REST APIs
    • JWT
    • Docker
    • CI/CD
    • AWS
    • Swagger
    • Postman

  • AI Systems

    The layer under the model. Newest to me, and the one I'm pushing hardest on.

    • Python
    • FastAPI
    • LLM provider routing
    • Groq
    • Anthropic
    • OpenAI
    • SSE streaming
    • Whisper speech-to-text
    • Image generation pipelines
    • Self-hosted model evaluation
    • GPU inference infrastructure
    • Inference cost engineering

  • Frontend

    Enough to ship the whole thing myself when a project needs that.

    • React
    • Next.js (App Router)
    • Tailwind CSS
    • shadcn/ui
    • Recharts

  • Blockchain

    Three years of contracts, tokens and money that has to land.

    • Solidity
    • Hardhat
    • ERC-20
    • Solana
    • Anchor (Rust)
    • SPL
    • Web3.js
    • Ethers.js
    • Solana Wallet Adapter
    • Remix

  • Ways of working

    The habits that make everything above survive contact with a team.

    • Agile / Scrum
    • Git & GitHub
    • Code review
    • API documentation
    • Technical writing
    • Cross-team collaboration

Right now

On my desk this month

  • Making models a config change

    Inside VibeCraft's AI service at TekAIDA — provider routing, transcription, and the arithmetic of self-hosting versus paying per token.

    AI/ML

  • Learning Rust the hard way

    Taking DojoPay's Anchor escrow from written-and-building to actually deployed. It is the step that gets custody out of my hands, and it is teaching me a lot.

    Software

  • Chasing five hundred sockets

    WhisperBoard's fan-out holds under its integration tests. The honest next step is a real load run at 500 concurrent sockets, because that is the number the product actually promises a room.

    Software

  • Healthcare APIs that hold

    Ongoing backend work at HarmonyKloud — the endpoints clinicians depend on, and the reliability work that keeps them dependable.

    Software

Contact

Come tell me what you’re building

Roles, contract work, or a good argument about something you’re building — all welcome. Email reaches me fastest.

primekings.kc@gmail.com