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Julius AyangEngineer

Based in Nigeria · Works remote

Julius Ayang

Mobile & Web Engineer

Four years shipping Flutter apps and web platforms for fintech, crypto, real estate and delivery products across Africa — from first wireframe to App Store release to the admin console that runs it afterward.

Julius Ayang, wearing a navy blazer and white shirt against a grey studio background
Julius Ayang2026
years in production Flutter
4+
shipped products
7
apps live on the App Store
3
engineering team led
1

Selected work

W.01FintechAndroid / iOS / Web

Myaza

A multi-currency wallet built for people who live between countries. I joined as Mobile Engineer and grew into Engineering Manager, overseeing the team that shipped the card, wallet, send/receive and swap flows — plus the web console behind them.

  • Multi-currency wallets (USD, NGN, and growing) with live FX rates
  • Virtual USD card issuance and management
  • Led a small engineering team through CI/CD on GitHub
  • Flutter
  • Firebase
  • BloC
  • CI/CD
Myaza home dashboard with Send, Convert and Add money actions, quick-access shortcuts for bank, mobile money and USDT, and a transactions panel
Myaza · Home01/02
Myaza create-new-wallet screen with a search field for picking a wallet currency by code
New wallet02/02
W.02FintechiOS / Android

Rivo

Rivo (formerly GetSimfy) converts cryptocurrency into local currency for people who need cash out, not just holdings. I've been the mobile engineer on it since 2023, shipping the wallet, swap, card and lending surfaces.

  • Withdraw straight into any Nigerian bank account
  • Crypto-backed lending with an adjustable LTV
  • Virtual cards and bill payments alongside the wallet
  • Flutter
  • CI/CD
  • API integration
The Rivo home screen in the running app: a greeting for Julius, masked NGN total balance, today's exchange rate of $1 = ₦1,370.00, Wallets and Crypto to Cash shortcuts, and a virtual-cards promo above the bottom navigation
Rivo · Home01/02
Rivo App Store slide showing the crypto-backed loan screen: an Adjust LTV control with a risk slider, loan amount and liquidation price in naira
App Store02/02
W.03DeliveryWeb

Giddgo

A neighbourhood delivery and errand service run over WhatsApp — no app download required. I built the customer-facing marketing site and the internal ops console staff use to manage live orders and assign riders, replacing what used to be an Excel workbook.

  • 19 admin routes over an 11-table Postgres schema
  • Passkey (WebAuthn) sign-in for staff, built without an auth library
  • Marketing site covering food, groceries, errands and shopping
  • Continuous deployment: GitHub → Vercel with preview builds
  • Next.js
  • Postgres
  • Vercel
  • Admin tooling
The Giddgo ops console overview: live backlog tiles for awaiting payment, in transit and unreachable orders, today's delivery and revenue figures, a seven-day performance row, month-to-date profit and loss, and daily order and fee-revenue charts
Ops console · demo data01/02
The live giddgo.com homepage: “Your neighbourhood partner for deliveries & errands”, with an Order on WhatsApp button
Live site02/02

Also shipped

  • Android / iOS

    Agrogrid

    Agritech marketplace connecting farmers straight to buyers — location-based farm discovery, built end to end in Flutter.

  • Android

    WequickPay

    Financial app covering send/receive, invoicing and invoice payments, built while at QT Solutions.

  • Android

    Tender Merchant

    POS crypto solution letting merchants accept cryptocurrency payments directly at the point of sale.

  • Android

    Zigatext

    Cloud messaging platform for birthday, bulk and automated messages — built with the Kemonai team across all phases of development.

How I work

Every product on this page shipped in Flutter or on the web, in remote teams spread across time zones, for companies moving fast enough that the spec changed under me more than once. What stays constant is the habit: clean architecture underneath, a build pipeline that doesn't need babysitting, and interfaces people understand on the first try — because in fintech, the first try is often the only one you get.

Currently splitting time between mobile engineering at Rivo and web engineering at Giddgo, having moved from six-person mobile teams to owning a product's web presence end to end.

Stack

Languages
Dart, TypeScript, Java
Mobile
Flutter (Android, iOS)
State management
Provider, BloC, Cubit
Web
Next.js, React, Tailwind CSS
Data
Postgres, Firebase, SQLite
AI workflow
Claude Code, LLM API integration
Tooling
Android Studio, VS Code, Git
Deployment
GitHub → Vercel, App Store, CI/CD

Experience

  1. Jan 2026 — now

    Web Engineer · Giddgo

    Built and shipped the marketing site and internal ops console — 19 admin routes on Postgres, replacing spreadsheet workflows.

  2. Nov 2023 — now

    Mobile Engineer · Rivo (formerly GetSimfy)

    Fintech product converting crypto to local currency. CI/CD delivery, API integration, complex UI implementation.

  3. Mar 2023 — Jun 2026

    Engineering Manager & Mobile Engineer · Myaza

    Grew from IC into overseeing the engineering team. Owned CI/CD, API integration and UI for a multi-currency wallet.

  4. Feb 2023 — Jun 2024

    Mobile Engineer · QT Solutions

    Built WequickPay, spanning send/receive and invoicing. GitHub, CI/CD, complex design implementation.

  5. Aug 2022 — Aug 2023

    Mobile Developer · Neutrolabs

    Real estate. Developed an MVP for shareholders, led a team of two, worked directly with the CEO.

  6. Feb 2022 — Dec 2022

    Mobile Developer · Tudirich

    Cryptocurrency platform. DevOps via GitHub and Firebase, API integration, published to the App Store.

  7. Feb 2022 — Aug 2022

    Mobile Developer · Kemonai

    Built Zigatext, a cloud messaging platform. UI design, API integration, GitLab-based DevOps.

Education

2018 – 2022

BSc Computer Science · University of Cross River State, Calabar

Contact

Building something that needs to feel trustworthy on a screen?

juliusayang3@gmail.com